Author: "Badhrees, I." / Topic: fos: physical sciences - Searchworks@Jio Institute Digital Library Search Results

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117 results on '"Badhrees, I."'

1. An integrated online radioassay data storage and analytics tool for nEXO

Author: Tsang, R. H. M., Piepke, A., Kharusi, S. Al, Angelico, E., Arnquist, I. J., Atencio, A., Badhrees, I., Bane, J., Belov, V., Bernard, E. P., Bhat, A., Bhatta, T., Bolotnikov, A., Breur, P. A., Brodsky, J. P., Brown, E., Brunner, T., Caden, E., Cao, G. F., Cao, L. Q., Cesmecioglu, D., Chambers, C., Chambers, E., Chana, B., Charlebois, S. A., Chernyak, D., Chiu, M., Cleveland, B., Cohen, J. R., Collister, R., Cvitan, M., Dalmasson, J., Darroch, L., Deslandes, K., DeVoe, R., di Vacri, M. L., Ding, Y. Y., Dolinski, M. J., Echevers, J., Eckert, B., Elbeltagi, M., Elmansali, R., Fabris, L., Fairbank, W., Farine, J., Fu, Y. S., Gallacher, D., Gallina, G., Gautam, P., Giacomini, G., Gillis, W., Gingras, C., Goeldi, D., Gornea, R., Gratta, G., Guan, Y. D., Hardy, C. A., Hedges, S., Heffner, M., Hein, E., Holt, J., Hoppe, E. W., House, A., Hunt, W., Iverson, A., Jamil, A., Jiang, X. S., Karelin, A., Kaufman, L. J., Kotov, I., Krücken, R., Kuchenkov, A., Kumar, K. S., Larson, A., Leach, K. G., Lenardo, B. G., Leonard, D. S., Li, G., Li, S., Li, Z., Licciardi, C., Lindsay, R., MacLellan, R., Mahtab, M., Majidi, S., Malbrunot, C., Martel-Dion, P., Masbou, J., Massacret, N., McMichael, K., Mong, B., Moore, D. C., Murray, K., Nattress, J., Natzke, C. R., Ngwadla, X. E., Ni, K., Nolan, A., Nowicki, S. C., Ondze, J. C. Nzobadila, Orrell, J. L., Ortega, G. S., Overman, C. T., Peltz-Smalley, H., Perna, A., Franco, T. Pinto, Pocar, A., Pratte, J. -F., Radeka, V., Raguzin, E., Rasiwala, H., Ray, D., Rebeiro, B., Rescia, S., Retière, F., Richardson, G., Ringuette, J., Riot, V., Rowson, P. C., Roy, N., Rudolph, L., Saldanha, R., Sangiorgio, S., Schwartz, S., Soderstrom, J., Soma, A. K., Spadoni, F., Stekhanov, V., Sun, X. L., Barakoohi, E. Teimoori, Thibado, S., Tidball, A., Totev, T., Triambak, S., Tsang, T., Tyuka, O. A., Underwood, R., van Bruggen, E., Veeraraghavan, V., Vidal, M., Viel, S., Walent, M., Wamba, K., Wang, Q. D., Wang, W., Wang, Y. G., Watts, M., Wei, W., Wen, L. J., Wichoski, U., Wilde, S., Worcester, M., Wu, S., Wu, X. M., Yang, H., Yang, L., Yvaine, M., Zeldovich, O., Zhao, J., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: Large-scale low-background detectors are increasingly used in rare-event searches as experimental collaborations push for enhanced sensitivity. However, building such detectors, in practice, creates an abundance of radioassay data especially during the conceptual phase of an experiment when hundreds of materials are screened for radiopurity. A tool is needed to manage and make use of the radioassay screening data to quantitatively assess detector design options. We have developed a Materials Database Application for the nEXO experiment to serve this purpose. This paper describes this database, explains how it functions, and discusses how it streamlines the design of the experiment.
Published: 2023
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2. Generative Adversarial Networks for Scintillation Signal Simulation in EXO-200

Author: Li, S., Ostrovskiy, I., Li, Z., Yang, L., Kharusi, S. Al, Anton, G., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Breidenbach, M., Brunner, T., Cao, G. F., Cen, W. R., Chambers, C., Cleveland, B., Coon, M., Craycraft, A., Daniels, T., Darroch, L., Daugherty, S. J., Davis, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Dolgolenko, A., Dolinski, M. J., Echevers, J., Fairbank Jr., W., Fairbank, D., Farine, J., Feyzbakhsh, S., Fierlinger, P., Fu, Y. S., Fudenberg, D., Gautam, P., Gornea, R., Gratta, G., Hall, C., Hansen, E. V., Hoessl, J., Hufschmidt, P., Hughes, M., Iverson, A., Jamil, A., Jessiman, C., Jewell, M. J., Johnson, A., Karelin, A., Kaufman, L. J., Koffas, T., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Lenardo, B. G., Leonard, D. S., Li, G. S., Licciardi, C., Lin, Y. H., MacLellan, R., McElroy, T., Michel, T., Mong, B., Moore, D. C., Murray, K., Njoya, O., Nusair, O., Odian, A., Perna, A., Piepke, A., Pocar, A., Retière, F., Robinson, A. L., Rowson, P. C., Runge, J., Schmidt, S., Sinclair, D., Skarpaas, K., Soma, A. K., Stekhanov, V., Tarka, M., Thibado, S., Todd, J., Tolba, T., Totev, T. I., and Tsang, R.
Subjects: FOS: Computer and information sciences, Computer Science - Machine Learning, High Energy Physics - Experiment (hep-ex), Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), High Energy Physics - Experiment, Machine Learning (cs.LG)
Abstract: Generative Adversarial Networks trained on samples of simulated or actual events have been proposed as a way of generating large simulated datasets at a reduced computational cost. In this work, a novel approach to perform the simulation of photodetector signals from the time projection chamber of the EXO-200 experiment is demonstrated. The method is based on a Wasserstein Generative Adversarial Network - a deep learning technique allowing for implicit non-parametric estimation of the population distribution for a given set of objects. Our network is trained on real calibration data using raw scintillation waveforms as input. We find that it is able to produce high-quality simulated waveforms an order of magnitude faster than the traditional simulation approach and, importantly, generalize from the training sample and discern salient high-level features of the data. In particular, the network correctly deduces position dependency of scintillation light response in the detector and correctly recognizes dead photodetector channels. The network output is then integrated into the EXO-200 analysis framework to show that the standard EXO-200 reconstruction routine processes the simulated waveforms to produce energy distributions comparable to that of real waveforms. Finally, the remaining discrepancies and potential ways to improve the approach further are highlighted., Comment: As accepted by JINST
Published: 2023
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3. Search for Two-neutrino Double-Beta Decay of $^{136}\rm Xe$ to the $0^+_1$ excited state of $^{136}\rm Ba$ with the Complete EXO-200 Dataset

Author: Collaboration, EXO-200, Kharusi, S. Al, Anton, G., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Breidenbach, M., Brunner, T., Cao, G. F., Cen, W. R., Chambers, C., Cleveland, B., Coon, M., Craycraft, A., Daniels, T., Darroch, L., Daugherty, S. J., Davis, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Dolgolenko, A., Dolinski, M. J., Echevers, J., Fairbank Jr., W., Fairbank, D., Farine, J., Feyzbakhsh, S., Fierlinger, P., Fu, Y. S., Fudenberg, D., Gautam, P., Gornea, R., Gratta, G., Hall, C., Hansen, E. V., Hoessl, J., Hufschmidt, P., Hughes, M., Iverson, A., Jamil, A., Jessiman, C., Jewell, M. J., Johnson, A., Karelin, A., Kaufman, L. J., Koffas, T., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Lenardo, B. G., Leonard, D. S., Li, G. S., Li, S., Li, Z., Licciardi, C., Lin, Y. H., MacLellan, R., McElroy, T., Michel, T., Mong, B., Moore, D. C., Murray, K., Njoya, O., Nusair, O., Odian, A., Ostrovskiy, I., Perna, A., Piepke, A., Pocar, A., Retière, F., Robinson, A. L., Rowson, P. C., Runge, J., Schmidt, S., Sinclair, D., Skarpaas, K., Soma, A. K., Stekhanov, V., Tarka, M., Thibado, S., Todd, J., Tolba, T., Totev, T. I., Tsang, R., Veenstra, B., Veeraraghavan, V., Vogel, P., Vuilleumier, J. -L., Wagenpfeil, M., Watkins, J., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Xia, Q., Yahne, D. R., Yang, L., Yen, Y. -R., Zeldovich, O. Ya., and Ziegler, T.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment
Abstract: A new search for two-neutrino double-beta ($2\nu\beta\beta$) decay of $^{136}\rm Xe$ to the $0^+_1$ excited state of $^{136}\rm Ba$ is performed with the full EXO-200 dataset. A deep learning-based convolutional neural network is used to discriminate signal from background events. Signal detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of two. With the addition of the Phase II dataset taken with an upgraded detector, the median 90$\%$ confidence level half-life sensitivity of $2\nu\beta\beta$ decay to the $0^+_1$ state of $^{136}\rm Ba$ is $2.9 \times 10^{24}~\rm yr$ using a total $^{136}\rm Xe$ exposure of $234.1~\rm kg~yr$. No statistically significant evidence for $2\nu\beta\beta$ decay to the $0^+_1$ state is observed, leading to a lower limit of $T^{2\nu}_{1/2}(0^+ \rightarrow 0^+_1) > 1.4\times10^{24}~\rm yr$ at 90$\%$ confidence level, a factor of $1.7$ improvement over the current world's best constraint., Comment: 9 pages, 6 figures, 2 tables
Published: 2023
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4. Search for MeV Electron Recoils from Dark Matter in EXO-200

Author: Collaboration, EXO-200, Kharusi, S. Al, Anton, G., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Breidenbach, M., Brunner, T., Cao, G. F., Cen, W. R., Chambers, C., Cleveland, B., Coon, M., Craycraft, A., Daniels, T., Darroch, L., Daugherty, S. J., Davis, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Dolgolenko, A., Dolinski, M. J., Echevers, J., Fairbank Jr., W., Fairbank, D., Farine, J., Feyzbakhsh, S., Fierlinger, P., Fu, Y. S., Fudenberg, D., Gautam, P., Gornea, R., Gratta, G., Hall, C., Hansen, E. V., Hoessl, J., Hufschmidt, P., Hughes, M., Iverson, A., Jamil, A., Jessiman, C., Jewell, M. J., Johnson, A., Karelin, A., Kaufman, L. J., Koffas, T., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Lenardo, B. G., Leonard, D. S., Li, G. S., Li, S., Li, Z., Licciardi, C., Lin, Y. H., MacLellan, R., McElroy, T., Michel, T., Mong, B., Moore, D. C., Murray, K., Njoya, O., Nusair, O., Odian, A., Ostrovskiy, I., Perna, A., Piepke, A., Pocar, A., Retière, F., Robinson, A. L., Rowson, P. C., Ruddell, D., Runge, J., Schmidt, S., Sinclair, D., Skarpaas, K., Soma, A. K., Stekhanov, V., Tarka, M., Thibado, S., Todd, J., Tolba, T., Totev, T. I., Tsang, R. H. M., Veenstra, B., Veeraraghavan, V., Vogel, P., Vuilleumier, J. -L., Wagenpfeil, M., Watkins, J., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Xia, Q., Yahne, D. R., Yang, L., Yen, Y. -R., Zeldovich, O. Ya., and Ziegler, T.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment
Abstract: We present a search for electron-recoil signatures from the charged-current absorption of fermionic dark matter using the EXO-200 detector. We report an average electron recoil background rate of $6.8 \times 10^{-4}\, \mathrm{cts}\,\mathrm{kg}^{-1}\mathrm{yr}^{-1}\mathrm{keV}^{-1}$ above $4\,\mathrm{MeV}$ and find no statistically significant excess over our background projection. Using a total ${}^{136}\mathrm{Xe}$ exposure of $234.1\,\mathrm{kg}\,\mathrm{yr}$ we exclude new parameter space for the charged-current absorption cross-section for dark matter masses between $m_\chi = 2.6\,\mathrm{MeV} - 11.6\,\mathrm{MeV}$ with a minimum of $6\times 10^{-51}\,\mathrm{cm}^2$ at $8.3\,\mathrm{MeV}$ at the $90\%$ confidence level., Comment: 9 pages, 6 figures, 1 table
Published: 2022
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5. Test of lepton flavor universality and search for lepton flavor violation in $B \to K \ell\ell$ decays

Author: Abdesselam, A., Adachi, I., Adamczyk, K., Ahn, J.K., Aihara, H., Al Said, S., Arinstein, K., Arita, Y., Asner, D.M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Aziz, T., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A.M., Ban, Y., Bansal, V., Barberio, E., Barrett, M., Bartel, W., Behera, P., Beleño, C., Belous, K., Bennett, J., Berger, M., Bernlochner, F., Besson, D., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bloomfield, T., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Braun, N., Breibeck, F., Browder, T.E., Campajola, M., Cao, L., Caria, G., Červenkov, D., Chang, M.-C., Chang, P., Chao, Y., Cheaib, R., Chekelian, V., Chen, A., Chen, K.-F., Chen, Y., Cheon, B.G., Chilikin, K., Chistov, R., Cho, H.E., Cho, K., Chobanova, V., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Crnkovic, J., Cunliffe, S., Czank, T., Danilov, M., Dash, N., De Nardo, G., Di Carlo, S., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T.V., Dossett, D., Drásal, Z., Drutskoy, A., Dubey, S., Dutta, D., Eidelman, S., Epifanov, D., Fast, J.E., Feindt, M., Ferber, T., Frey, A., Frost, O., Fulsom, B.G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Gemmler, J., Getzkow, D., Giordano, F., Giri, A., Goldenzweig, P., Golob, B., Greenwald, D., Grosse Perdekamp, M., Grygier, J., Grzymkowska, O., Guan, Y., Guido, E., Guo, H., Haba, J., Hamer, P., Hara, K., Hara, T., Hartbrich, O., Hasegawa, Y., Hasenbusch, J., Hayasaka, K., Hayashii, H., He, X.H., Heck, M., Hedges, M.T., Heffernan, D., Heider, M., Heller, A., Higuchi, T., Hirose, S., Hoshi, Y., Hoshina, K., Hou, W.-S., Hsiung, Y.B., Hsu, C.-L., Huang, K., Huschle, M., Igarashi, Y., Iijima, T., Imamura, M., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jacobs, W.W., Jaegle, I., Jang, E.-J., Jeon, H.B., Jia, S., Jin, Y., Joffe, D., Jones, M., Joo, C.W., Joo, K.K., Julius, T., Kahn, J., Kakuno, H., Kaliyar, A.B., Kang, J.H., Kang, K.H., Kapusta, P., Karyan, G., Kataoka, S.U., Kato, Y., Katrenko, P., Kawai, H., Kawasaki, T., Keck, T., Kichimi, H., Kiesling, C., Kim, B.H., Kim, C.H., Kim, D.Y., Kim, H.-J., Kim, J.B., Kim, K.T., Kim, S.H., Kim, S.K., Kim, Y.J., Kimmel, T., Kindo, H., Kinoshita, K., Kleinwort, C., Klucar, J., Kobayashi, N., Kodyš, P., Koga, Y., Konno, T., Korpar, S., Kotchetkov, D., Kouzes, R.T., Križan, P., Kroeger, R., Krohn, J.-F., Krokovny, P., Kronenbitter, B., Kuhr, T., Kulasiri, R., Kumar, R., Kumita, T., Kurihara, E., Kuroki, Y., Kuzmin, A., Kvasnička, P., Kwon, Y.-J., Lai, Y.-T., Lalwani, K., Lange, J.S., Lee, I.S., Lee, J.K., Lee, J.Y., Lee, S.C., Leitgab, M., Leitner, R., Levit, D., Lewis, P., Li, C.H., Li, H., Li, L.K., Li, Y.B., Li Gioi, L., Libby, J., Lieret, K., Limosani, A., Liptak, Z., Liu, C., Liu, Y., Liventsev, D., Loos, A., Louvot, R., Lu, P.-C., Lubej, M., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., McNeil, J.T., Merola, M., Metzner, F., Miyabayashi, K., Miyachi, Y., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G.B., Mohanty, S., Moon, H.K., Moon, T.J., Mori, T., Morii, T., Moser, H.-G., Mrvar, M., Müller, T., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakahama, Y., Nakamura, I., Nakamura, K.R., Nakano, E., Nakano, T., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Nath, K.J., Natkaniec, Z., Nayak, M., Neichi, K., Ng, C., Niebuhr, C., Niiyama, M., Nisar, N.K., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, A., Ogawa, K., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S.L., Ono, H., Onuki, Y., Ostrowicz, W., Oswald, C., Ozaki, H., Pakhlov, P., Pakhlova, G., Pal, B., Pang, T., Panzenböck, E., Pardi, S., Park, C.-S., Park, H., Park, K.S., Park, S.-H., Patra, S., Paul, S., Pavelkin, I., Pedlar, T.K., Peng, T., Pesántez, L., Pestotnik, R., Peters, M., Piilonen, L.E., Popov, V., Prasanth, K., Prencipe, E., Prim, M.T., Prothmann, K., Purohit, M.V., Rabusov, A., Rauch, J., Reisert, B., Resmi, P.K., Ribežl, E., Ritter, M., Rorie, J., Rostomyan, A., Rozanska, M., Russo, G., Sahoo, D., Sahoo, H., Sakai, Y., Salehi, M., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sasaki, J., Sasao, N., Sato, Y., Savinov, V., Schlüter, T., Schneider, O., Schnell, G., Schram, M., Schueler, J., Schwanda, C., Schwartz, A.J., Schwenker, B., Seidl, R., Seino, Y., Semmler, D., Senyo, K., Seon, O., Seong, I.S., Sevior, M.E., Shang, L., Shapkin, M., Shebalin, V., Shen, C.P., Shibata, T.-A., Shibuya, H., Shinomiya, S., Shiu, J.-G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J.B., Sinha, R., Smith, K., Sokolov, A., Soloviev, Y., Solovieva, E., Stanič, S., Starič, M., Steder, M., Stottler, Z., Strube, J.F., Stypula, J., Sugihara, S., Sugiyama, A., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Suzuki, K., Suzuki, S.Y., Takeichi, H., Takizawa, M., Tamponi, U., Tanaka, M., Tanaka, S., Tanida, K., Taniguchi, N., Tao, Y., Taylor, G.N., Tenchini, F., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Ueda, I., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Vahsen, S.E., Van Hulse, C., Van Tonder, R., Vanhoefer, P., Varner, G., Varvell, K.E., Vervink, K., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M.N., Waheed, E., Wang, Biao, Wang, C.H., Wang, M.-Z., Wang, P., Wang, X.L., Watanabe, M., Watanabe, Y., Watanuki, S., Wedd, R., Wehle, S., Widmann, E., Wiechczynski, J., Williams, K.M., Won, E., Yabsley, B.D., Yamada, S., Yamamoto, H., Yamashita, Y., Yang, S.B., Yashchenko, S., Ye, H., Yelton, J., Yin, J.H., Yook, Y., Yuan, C.Z., Yusa, Y., Zakharov, S., Zhang, C.C., Zhang, J., Zhang, L.M., Zhang, Z.P., Zhao, L., Zhilich, V., Zhukova, V., Zhulanov, V., Zivko, T., Zupanc, A., Zwahlen, N., Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and BELLE
Subjects: FCNC Interaction, Upsilon(10570): electroproduction, dilepton: mass spectrum, B: semileptonic decay, Flavour Changing Neutral Currents, isospin: asymmetry, e+-e− Experiments, FOS: Physical sciences, BELLE, B: branching ratio: measured, electron positron: annihilation, B physics, High Energy Physics - Experiment, electron: pair production, Flavor physics, High Energy Physics - Experiment (hep-ex), KEK-B, lepton: flavor: universality, +K+electron+positron%22">B --> K electron positron, +K+muon%2B+muon%22">B --> K muon+ muon, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], B: pair production, branching ratio: ratio: measured, electron positron: colliding beams, mass dependence, muon: pair production, muon: final state, statistical, experimental results
Abstract: We present measurements of the branching fractions for the decays $B\to K \mu^{+}\mu^{-}$ and $B\to K e^{+}e^{-}$, and their ratio ($R_{K}$), using a data sample of 711 $fb^{-1}$ that contains $772 \times 10^{6}$ $B\bar{B}$ events. The data were collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. The ratio $R_{K}$ is measured in five bins of dilepton invariant-mass-squared ($q^{2}$): $q^{2} \in (0.1, 4.0), (4.0, 8.12), (1.0, 6.0)$, $(10.2, 12.8)$ and ($>14.18) GeV^{2}/c^{4}$, along with the whole $q^2$ region. The $R_{K}$ value for $q^{2} \in (1.0, 6.0) GeV^{2}/c^{4}$ is $1.03^{+0.28}_{-0.24} \pm 0.01$. The first and second uncertainties listed are statistical and systematic, respectively. All results for $R_{K}$ are consistent with Standard Model predictions. We also measure $C\!P$-averaged isospin asymmetries in the same $q^{2}$ bins. The results are consistent with a null asymmetry, with the largest difference of 2.6 standard deviations occurring for the $q^{2}\in(1.0,6.0) GeV^{2}/c^{4}$ bin in the mode with muon final states. The measured differential branching fractions, ${d\cal B}/{dq^{2}}$, are consistent with theoretical predictions for charged $B$ decays, while the corresponding values are below the expectations for neutral $B$ decays. We have also searched for lepton-flavor-violating $B \rightarrow K\mu^{\pm}e^{\mp}$ decays and set $90\%$ confidence-level upper limits on the branching fraction in the range of $10^{-8}$ for $B^{+} \rightarrow K^{+}\mu^{\pm}e^{\mp}$, and $B^{0} \rightarrow K^{0}\mu^{\pm}e^{\mp}$ modes., Comment: 18 pages, 7 figures
Published: 2021
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6. Test of Lepton-Flavor Universality in ${B\to K^\ast\ell^+\ell^-}$ Decays at Belle

Author: Abdesselam, A., Adachi, I., Adamczyk, K., Ahn, J.K., Aihara, H., Al Said, S., Arinstein, K., Arita, Y., Asner, D.M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Aziz, T., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A.M., Ban, Y., Bansal, V., Barberio, E., Barrett, M., Bartel, W., Behera, P., Beleño, C., Belous, K., Berger, M., Bernlochner, F., Besson, D., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bloomfield, T., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Braun, N., Breibeck, F., Browder, T.E., Campajola, M., Cao, L., Caria, G., Červenkov, D., Chang, M.-C., Chang, P., Chao, Y., Cheaib, R., Chekelian, V., Chen, A., Chen, K.-F., Cheon, B.G., Chilikin, K., Chistov, R., Cho, H.E., Cho, K., Chobanova, V., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Crnkovic, J., Cunliffe, S., Czank, T., Danilov, M., Dash, N., Di Carlo, S., Dingfelder, J., Doležal, Z., Dong, T.V., Dossett, D., Drásal, Z., Drutskoy, A., Dubey, S., Dutta, D., Eidelman, S., Epifanov, D., Fast, J.E., Feindt, M., Ferber, T., Frey, A., Frost, O., Fulsom, B.G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Gemmler, J., Getzkow, D., Giordano, F., Giri, A., Goldenzweig, P., Golob, B., Greenwald, D., Grosse Perdekamp, M., Grygier, J., Grzymkowska, O., Guan, Y., Guido, E., Guo, H., Haba, J., Hamer, P., Hara, K., Hara, T., Hasegawa, Y., Hasenbusch, J., Hayasaka, K., Hayashii, H., He, X.H., Heck, M., Hedges, M.T., Heffernan, D., Heider, M., Heller, A., Higuchi, T., Hirose, S., Horiguchi, T., Hoshi, Y., Hoshina, K., Hou, W.-S., Hsiung, Y.B., Hsu, C.-L., Huang, K., Huschle, M., Igarashi, Y., Iijima, T., Imamura, M., Inami, K., Inguglia, G., Ishikawa, A., Itagaki, K., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jacobs, W.W., Jaegle, I., Jeon, H.B., Jia, S., Jin, Y., Joffe, D., Jones, M., Joo, C.W., Joo, K.K., Julius, T., Kahn, J., Kakuno, H., Kaliyar, A.B., Kang, J.H., Kang, K.H., Kapusta, P., Karyan, G., Kataoka, S.U., Kato, E., Kato, Y., Katrenko, P., Kawai, H., Kawasaki, T., Keck, T., Kichimi, H., Kiesling, C., Kim, B.H., Kim, C.H., Kim, D.Y., Kim, H.-J., Kim, J.B., Kim, K.T., Kim, S.H., Kim, S.K., Kim, Y.J., Kimmel, T., Kindo, H., Kinoshita, K., Kleinwort, C., Klucar, J., Kobayashi, N., Kodyš, P., Koga, Y., Konno, T., Korpar, S., Kotchetkov, D., Kouzes, R.T., Križan, P., Kroeger, R., Krohn, J.-F., Krokovny, P., Kronenbitter, B., Kuhr, T., Kulasiri, R., Kumar, R., Kumita, T., Kurihara, E., Kuroki, Y., Kuzmin, A., Kvasnička, P., Kwon, Y.-J., Lai, Y.-T., Lalwani, K., Lange, J.S., Lee, I.S., Lee, J.K., Lee, J.Y., Lee, S.C., Leitgab, M., Leitner, R., Levit, D., Lewis, P., Li, C.H., Li, H., Li, L.K., Li, Y.B., Li Gioi, L., Libby, J., Lieret, K., Limosani, A., Liptak, Z., Liu, C., Liu, Y., Liventsev, D., Loos, A., Louvot, R., Lu, P.-C., Lubej, M., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., McNeil, J.T., Merola, M., Metzner, F., Mikami, Y., Miyabayashi, K., Miyachi, Y., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G.B., Mohanty, S., Moon, H.K., Moon, T.J., Mori, T., Morii, T., Moser, H.-G., Mrvar, M., Müller, T., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakahama, Y., Nakamura, I., Nakamura, K.R., Nakano, E., Nakano, H., Nakano, T., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Nath, K.J., Natkaniec, Z., Nayak, M., Neichi, K., Ng, C., Niebuhr, C., Niiyama, M., Nisar, N.K., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, A., Ogawa, K., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S.L., Ono, H., Ono, Y., Onuki, Y., Ostrowicz, W., Oswald, C., Ozaki, H., Pakhlov, P., Pakhlova, G., Pal, B., Panzenböck, E., Pardi, S., Park, C.-S., Park, H., Park, K.S., Park, S.-H., Patra, S., Paul, S., Pavelkin, I., Pedlar, T.K., Peng, T., Pesántez, L., Pestotnik, R., Peters, M., Piilonen, L.E., Popov, V., Prasanth, K., Prencipe, E., Prim, M., Prothmann, K., Purohit, M.V., Rabusov, A., Rauch, J., Reisert, B., Resmi, P.K., Ribežl, E., Ritter, M., Rorie, J., Rostomyan, A., Rozanska, M., Rummel, S., Russo, G., Sahoo, D., Sahoo, H., Saito, T., Sakai, Y., Salehi, M., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sasaki, J., Sasao, N., Sato, Y., Savinov, V., Schlüter, T., Schneider, O., Schnell, G., Schönmeier, P., Schram, M., Schueler, J., Schwanda, C., Schwartz, A.J., Schwenker, B., Seidl, R., Seino, Y., Semmler, D., Senyo, K., Seon, O., Seong, I.S., Sevior, M.E., Shang, L., Shapkin, M., Shebalin, V., Shen, C.P., Shibata, T.-A., Shibuya, H., Shinomiya, S., Shiu, J.-G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J.B., Sinha, R., Smith, K., Sokolov, A., Soloviev, Y., Solovieva, E., Stanič, S., Starič, M., Steder, M., Stottler, Z., Strube, J.F., Stypula, J., Sugihara, S., Sugiyama, A., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Suzuki, K., Suzuki, S.Y., Suzuki, Z., Takeichi, H., Takizawa, M., Tamponi, U., Tanaka, M., Tanaka, S., Tanida, K., Taniguchi, N., Tao, Y., Taylor, G.N., Tenchini, F., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uchida, T., Ueda, I., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Vahsen, S.E., Van Hulse, C., Van Tonder, R., Vanhoefer, P., Varner, G., Varvell, K.E., Vervink, K., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M.N., Waheed, E., Wang, B., Wang, C.H., Wang, M.-Z., Wang, P., Wang, X.L., Watanabe, M., Watanabe, Y., Watanuki, S., Wedd, R., Wehle, S., Widmann, E., Wiechczynski, J., Williams, K.M., Won, E., Yabsley, B.D., Yamada, S., Yamamoto, H., Yamashita, Y., Yang, S.B., Yashchenko, S., Ye, H., Yelton, J., Yin, J.H., Yook, Y., Yuan, C.Z., Yusa, Y., Zakharov, S., Zhang, C.C., Zhang, J., Zhang, L.M., Zhang, Z.P., Zhao, L., Zhilich, V., Zhukova, V., Zhulanov, V., Zivko, T., Zupanc, A., Zwahlen, N., Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Belle
Subjects: Upsilon(10570): electroproduction, B: semileptonic decay, B: pair production, branching ratio: ratio: measured, K*(892), FOS: Physical sciences, BELLE, electron positron: colliding beams, electron positron: annihilation, High Energy Physics - Experiment, +K*%28892%29+muon%2B+muon%22">B --> K*(892) muon+ muon, electron: pair production, muon: pair production, High Energy Physics - Experiment (hep-ex), KEK-B, lepton: flavor: universality, Elementary Particles and Fields, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], +K*%28892%29+electron+positron%22">B --> K*(892) electron positron, High Energy Physics::Experiment, B: branching ratio, experimental results
Abstract: We present a measurement of $R_{K^{\ast}}$, the branching fraction ratio ${{\cal B}(B\to K^\ast \mu^+ \mu^-)}$/ ${{\cal B}(B\to K^\ast e^+ e^-)}$, for both charged and neutral $B$ mesons. The ratio for the charged case, $R_{K{^{\ast +}}}$, is the first measurement ever performed. In addition, we report absolute branching fractions for the individual modes in bins of the squared dilepton invariant mass, $q^2$. The analysis is based on a data sample of $711~\mathrm{fb}^{-1}$, containing $772\times 10^{6}$ $B\bar B$ events, recorded at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. The obtained results are consistent with Standard Model expectations., Comment: Submitted to PRL
Published: 2021
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7. Search for the decay $B_s^0\rightarrow��$

Author: Belle Collaboration, Bhuyan, B., Nath, K. J., Borah, J., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Behera, P., Bennett, J., Bhardwaj, V., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bra��ko, M., Browder, T. E., Campajola, M., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Capua, F., Di Carlo, S., Dole��al, Z., Dong, T. V., Dubey, S., Eidelman, S., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Haba, J., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Kaliyar, A. B., Kang, K. H., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, J. K., Lee, J. Y., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., MacQueen, C., Masuda, M., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakano, T., Nakao, M., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pang, T., Pardi, S., Park, H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shiu, J. -G., Solovieva, E., Stari��, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Vossen, A., Wang, C. H., Wang, M. -Z., Wang, P., Wiechczynski, J., Won, E., Yang, S. B., Ye, H., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report results from a search for the decay $B_s^0\rightarrow��$ using 121.4 fb$^{-1}$ of data collected at the $��(5S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We do not observe any signal and set an upper limit on the branching fraction of $14.3\times 10^{-5}$ at $90\%$ confidence level. This result represents a significant improvement over the previous most stringent limit., 7 pages, 6 figures
Published: 2021
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8. Search for Majoron-emitting modes of $^{136}$Xe double beta decay with the complete EXO-200 dataset

Author: Kharusi, S. Al, Anton, G., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Breidenbach, M., Brunner, T., Cao, G. F., Cen, W. R., Chambers, C., Cleveland, B., Coon, M., Craycraft, A., Daniels, T., Darroch, L., Daugherty, S. J., Davis, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Dolgolenko, A., Dolinski, M. J., Echevers, J., Fairbank Jr., W., Fairbank, D., Farine, J., Feyzbakhsh, S., Fierlinger, P., Fudenberg, D., Gautam, P., Gornea, R., Gratta, G., Hall, C., Hansen, E. V., Hoessl, J., Hufschmidt, P., Hughes, M., Iverson, A., Jamil, A., Jessiman, C., Jewell, M. J., Johnson, A., Karelin, A., Kaufman, L. J., Koffas, T., Krucken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Lenardo, B. G., Leonard, D. S., Li, G. S., Li, S., Li, Z., Licciardi, C., Lin, Y. H., MacLellan, R., McElroy, T., Michel, T., Mong, B., Moore, D. C., Murray, K., Njoya, O., Nusair, O., Odian, A., Ostrovskiy, I., Perna, A., Piepke, A., Pocar, A., Retiere, F., Robinson, A. L., Rowson, P. C., Rudde, D., Runge, J., Schmidt, S., Sinclair, D., Skarpaas, K., Soma, A. K., Stekhanov, V., Tarka, M., Thibado, S., Todd, J., Tolba, T., Totev, T. I., Tsang, R., Veenstra, B., Veeraraghavan, V., Vogel, P., Vuilleumier, J. -L., Wagenpfeil, M., Watkins, J., Weber, M., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Xia, Q., Yahne, D. R., Yang, L., Yen, Y. -R., Zeldovich, O. Ya., and Ziegler, T.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment
Abstract: A search for Majoron-emitting modes of the neutrinoless double-beta decay of $^{136}$Xe is performed with the full EXO-200 dataset. This dataset consists of a total $^{136}$Xe exposure of 234.1 kg$\cdot$yr, and includes data with detector upgrades that have improved the energy threshold relative to previous searches. A lower limit of T$_{1/2}^{\rm{^{136}Xe}}>$4.3$\cdot$10$^{24}$ yr at 90\% C.L. on the half-life of the spectral index $n=1$ Majoron decay was obtained, a factor of 3.6 more stringent than the previous limit from EXO-200, corresponding to a constraint on the Majoron-neutrino coupling constant of $|\langle g_{ee}^{M}\rangle|$$
Published: 2021
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9. Measurement of the Spectral Shape of the beta-decay of 137Xe to the Ground State of 137Cs in EXO-200 and Comparison with Theory

Author: Kharusi, S. Al, Anton, G., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Breidenbach, M., Brunner, T., Cao, G. F., Cen, W. R., Chambers, C., Cleveland, B., Coon, M., Craycraft, A., Daniels, T., Darroch, L., Daugherty, S. J., Davis, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Dolgolenko, A., Dolinski, M. J., Echevers, J., Fairbank, W., Fairbank, D., Farine, J., Feyzbakhsh, S., Fierlinger, P., Fudenberg, D., Gautam, P., Gornea, R., Gratta, G., Hall, C., Hansen, E. V., Hoessl, J., Hufschmidt, P., Hughes, M., Iverson, A., Jamil, A., Jessiman, C., Jewell, M. J., Johnson, A., Karelin, A., Kaufman, L. J., Koffas, T., Kostensalo, J., Kr��cken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Lenardo, B. G., Leonard, D. S., Li, G. S., Li, S., Li, Z., Licciardi, C., Lin, Y. H., MacLellan, R., McElroy, T., Michel, T., Mong, B., Moore, D. C., Murray, K., Nakarmi, P., Njoya, O., Nusair, O., Odian, A., Ostrovskiy, I., Piepke, A., Pocar, A., Reti��re, F., Robinson, A. L., Rowson, P. C., Ruddell, D., Runge, J., Schmidt, S., Sinclair, D., Skarpaas, K., Soma, A. K., Stekhanov, V., Suhonen, J., Tarka, M., Thibado, S., Todd, J., Tolba, T., Totev, T. I., Tsang, R., Veenstra, B., Veeraraghavan, V., Vogel, P., Vuilleumier, J. -L., Wagenpfeil, M., Watkins, J., Weber, M., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Xia, Q., Yahne, D. R., Yang, L., Yen, Y. -R., Zeldovich, O. Ya., and Ziegler, T.
Subjects: Nuclear Theory (nucl-th), Nuclear Theory, FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: We report on a comparison between the theoretically predicted and experimentally measured spectra of the first-forbidden non-unique $\beta$-decay transition $^{137}\textrm{Xe}(7/2^-)\to\,^{137}\textrm{Cs}(7/2^+)$. The experimental data were acquired by the EXO-200 experiment during a deployment of an AmBe neutron source. The ultra-low background environment of EXO-200, together with dedicated source deployment and analysis procedures, allowed for collection of a pure sample of the decays, with an estimated signal-to-background ratio of more than 99-to-1 in the energy range from 1075 to 4175 keV. In addition to providing a rare and accurate measurement of the first-forbidden non-unique $\beta$-decay shape, this work constitutes a novel test of the calculated electron spectral shapes in the context of the reactor antineutrino anomaly and spectral bump., Comment: Version as accepted by PRL
Published: 2020

10. Evidence for a vector charmonium-like state in $e^+e^- \to D^+_sD^*_{s2}(2573)^-+c.c.$

Author: Jia, S., Shen, C. P., Behera, P., Mori, T., Mrvar, M., Nakao, M., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Oskin, P., Pakhlov, P., Belous, K., Pakhlova, G., Pardi, S., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Bennett, J., Prim, M. T., Rostomyan, A., Rout, N., Russo, G., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Besson, D., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Shebalin, V., Shiu, J.-G., Shwartz, B., Solovieva, E., Bhardwaj, V., Stanič, S., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tenchini, F., Bilka, T., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Tonder, R., Varner, G., Vinokurova, A., Wang, C. H., Wang, E., Biswal, J., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, M., Won, E., Xu, X., Yan, W., Yang, S. B., Ye, H., Yuan, C. Z., Bonvicini, G., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., Belle Collaboration, Bozek, A., Bračko, M., Adachi, I., Browder, T. E., Campajola, M., Červenkov, D., Chang, P., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S.-K., Choi, Y., Aihara, H., Choudhury, S., Cinabro, D., Dash, N., De Nardo, G., Di Capua, F., Doležal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Al Said, S., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Asner, D. M., Grzymkowska, O., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W.-S., Hsu, C.-L., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Atmacan, H., Iwasaki, M., Iwasaki, Y., Jeon, H. B., Jin, Y., Joo, K. K., Karyan, G., Kawasaki, T., Kiesling, C., Kim, B. H., Kim, D. Y., Aulchenko, V., Kim, K.-H., Kim, S. H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Ayad, R., Kulasiri, R., Kuzmin, A., Kwon, Y.-J., Lalwani, K., Lange, J. S., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Badhrees, I., Lieret, K., Liventsev, D., MacNaughton, J., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Mizuk, R., and Moon, T. J.
Subjects: electroproduction [D/s+], measured [mass], (D/s D/sJ*(2573)) [mass spectrum], D/sJ*(2573), FOS: Physical sciences, initial-state interaction [radiation], BELLE, annihilation [electron positron], quantum number, D/s1(2536), width [mass], High Energy Physics - Experiment, intermediate state, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), KEK-B, High Energy Physics - Phenomenology (hep-ph), +D%2Fs+D%2FsJ*%282573%29%22">electron positron --> D/s D/sJ*(2573), electroproduction [Upsilon(10570)], colliding beams [electron positron], branching ratio: measured [channel cross section], ddc:530, initial state, enhancement, experimental results
Abstract: We report the measurement of $e^+e^- \to D^+_sD^*_{s2}(2573)^-+c.c.$ via initial-state radiation using a data sample of an integrated luminosity of 921.9 fb$^{-1}$ collected with the Belle detector at the $\Upsilon(4S)$ and nearby. We find evidence for an enhancement with a 3.4$\sigma$ significance in the invariant mass of $D^+_sD^*_{s2}(2573)^- +c.c.$ The measured mass and width are $(4619.8^{+8.9}_{-8.0}({\rm stat.})\pm2.3({\rm syst.}))~{\rm MeV}/c^{2}$ and $(47.0^{+31.3}_{-14.8}({\rm stat.})\pm4.6({\rm syst.}))~{\rm MeV}$, respectively. The mass, width, and quantum numbers of this enhancement are consistent with the charmonium-like state at 4626 MeV/$c^2$ recently reported by Belle in $e^+e^-\to D^+_sD_{s1}(2536)^-+c.c.$ The product of the $e^+e^-\to D^+_sD^*_{s2}(2573)^-+c.c.$ cross section and the branching fraction of $D^*_{s2}(2573)^-\to{\bar D}^0K^-$ is measured from $D^+_sD^*_{s2}(2573)^-$ threshold to 5.6 GeV., Comment: 9 pages, 4 figures
Published: 2020
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11. Update of inclusive cross sections of single and pairs of identified light charged hadrons

Author: Belle Collaboration, Seidl, R., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Badhrees, I., Behera, P., Belous, K., Bennett, J., Bhuyan, B., Biswal, J., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chang, M.-C., Chekelian, V., Chen, A., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., De Nardo, G., Di Capua, F., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Hayasaka, K., Hayashii, H., Hou, W.-S., Huang, K., Inami, K., Ishikawa, A., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joo, K. K., Karyan, G., Kim, D. Y., Kim, S. H., Kodyš, P., Korpar, S., Križan, P., Kroeger, R., Krokovny, P., Kuzmin, A., Kwon, Y.-J., Lee, S. C., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mussa, R., Nakao, M., Nayak, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Ritter, M., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Sevior, M. E., Shapkin, M., Shebalin, V., Shiu, J.-G., Shwartz, B., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Usov, Y., Van Tonder, R., Varner, G., Vorobyev, V., Vossen, A., Wang, C. H., Wang, M.-Z., Wang, P., Watanuki, S., Won, E., Xu, X., Yang, S. B., Yelton, J., Zhang, Z. P., Zhilich, V., Zhukova, V., European Commission, Belle, Collaboration, Campajola, M., De Nardo, G., Di Capua, F., Merola, M., Pardi, S., Russo, G., and Et, Al.
Subjects: pair production [K], data analysis method, Hadron, measured [channel cross section], Belle, FOS: Physical sciences, annihilation [electron positron], Radiation, transverse momentum, 01 natural sciences, fragmentation function, Computer Science::Digital Libraries, High Energy Physics - Experiment, energy dependence, Nuclear physics, High Energy Physics - Experiment (hep-ex), KEKB, Pion, KEK-B, fragmentation, 0103 physical sciences, ddc:530, inclusive reaction [electron positron], 010306 general physics, initial state, Nuclear Experiment, electroproduction [dihadron], electroproduction [pi], Physics, 010308 nuclear & particles physics, Detector, initial-state interaction [radiation], 16. Peace & justice, ddc, pair production [pi], electroproduction [K], Transverse momentum, fractional, electroproduction [Upsilon(10570)], colliding beams [electron positron], electroproduction [p], High Energy Physics::Experiment, experimental results
Abstract: We report new measurements of the production cross sections of pairs of charged pions and kaons as a function of their fractional energies using various fractional-energy definitions. Two different fractional-energy definitions were used and compared to the conventional fractional-energy definition reported previously. The new variables aim at either identifying dihadron cross sections in terms of single-hadron fragmentation functions, or to provide a means of characterizing the transverse momentum created in the fragmentation process. The results were obtained applying the updated initial-state radiation correction used in other recent Belle publications on light-hadron production cross sections. In addition, production cross sections of single charged pions, kaons, and protons were also updated using this initial-state radiation correction. The cross sections are obtained from a $558\,{\rm fb}^{-1}$ data sample collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider., Comment: 12 pages, 9 figures, submitted to PRD
Published: 2020
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12. Dalitz analysis of $D^{0}\to K^{-}��^{+}��$ decays at Belle

Author: Belle Collaboration, Chen, Y. Q., Li, L. K., Yan, W. B., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bahinipati, S., Behera, P., Bennett, J., Bhardwaj, V., Bilka, T., Biswal, J., Bozek, A., Bra��ko, M., Browder, T. E., Campajola, M., Cao, L., ��ervenkov, D., Chang, M. -C., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., De Nardo, G., Di Capua, F., Dole��al, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E. -J., Jeon, H. B., Jia, S., Jin, Y., Joo, K. K., Kang, K. H., Karyan, G., Kawasaki, T., Kim, D. Y., Kim, S. H., Kimmel, T. D., Kinoshita, K., Kody��, P., Korpar, S., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., MacNaughton, J., MacQueen, C., Masuda, M., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, S., Mussa, R., Nakao, M., Natkaniec, Z., Nayak, M., Nishida, S., Ogawa, S., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Rabusov, A., Ritter, M., R��hrken, M., Rout, N., Russo, G., Sahoo, D., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Shebalin, V., Shiu, J. -G., Sokolov, A., Solovieva, E., Stari��, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Uno, S., Urquijo, P., Varner, G., Vorobyev, V., Wang, C. H., Wang, E., Wang, M. -Z., Wang, P., Watanabe, M., Won, E., Xu, X., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We present the results of the first Dalitz plot analysis of the decay $D^{0}\to K^{-}��^{+}��$. The analysis is performed on a data set corresponding to an integrated luminosity of 953 $\rm{fb}^{-1}$ collected by the Belle detector at the asymmetric-energy $e^{+}e^{-}$ KEKB collider. The Dalitz plot is well described by a combination of the six resonant decay channels $\bar{K}^{*}(892)^0��$, $K^{-}a_0(980)^+$, $K^{-}a_2(1320)^+$, $\bar{K}^{*}(1410)^0��$, $K^{*}(1680)^-��^{+}$ and $K_2^{*}(1980)^-��^{+}$, together with $K��$ and $K��$ S-wave components. The decays $K^{*}(1680)^{-}\to K^{-}��$ and $K_{2}^{*}(1980)^{-}\to K^{-}��$ are observed for the first time. We measure ratio of the branching fractions, $\frac{\mathcal{B}(D^{0}\to K^{-}��^{+}��)}{\mathcal{B}(D^{0}\to K^{-}��^{+})}=0.500\pm0.002{\rm(stat)}\pm0.020{\rm(syst)}\pm0.003{\rm (\mathcal{B}_{PDG})}$. Using the Dalitz fit result, the ratio $\frac{\mathcal{B}(K^{*}(1680)\to K��)}{\mathcal{B}(K^{*}(1680)\to K��)}$ is measured to be $0.11\pm0.02{\rm(stat)}^{+0.06}_{-0.04}{\rm(syst)}\pm0.04{\rm(\mathcal{B}_{\text{PDG}})}$; this is much lower than the theoretical expectations ($\approx1$) made under the assumption that $K^{*}(1680)$ is a pure $1^{3}D_1$ state. The product branching fraction $\mathcal{B}(D^0\to [K_2^{*}(1980)^-\to K^{-}��]��^{+})=(2.2^{+1.7}_{-1.9})\times10^{-4}$ is determined. In addition, the $��^{\prime}$ contribution to the $a_0(980)^{\pm}$ resonance shape is confirmed with 10.1$��$ statistical significance using the three-channel Flatt�� model. We also measure $\mathcal{B}(D^0\to\bar{K}^{*}(892)^0��)=(1.41^{+0.13}_{-0.12})\%$. This is consistent with, and more precise than, the current world average $(1.02\pm0.30)\%$, deviates with a significance of more than $3��$ from the theoretical predictions of (0.51-0.92)%., 11 pages, 2 figures
Published: 2020
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13. Measurement of the $D^{\ast-}$ polarization in the decay $B^0 \to D^{\ast -}��^+��_��$

Author: Belle Collaboration, Abdesselam, A., Adachi, I., Adamczyk, K., Ahn, J. K., Aihara, H., Said, S. Al, Arinstein, K., Arita, Y., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Aziz, T., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Ban, Y., Bansal, V., Barberio, E., Barrett, M., Bartel, W., Behera, P., Bele��o, C., Belous, K., Berger, M., Bernlochner, F., Besson, D., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bloomfield, T., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bra��ko, M., Braun, N., Breibeck, F., Browder, T. E., Campajola, M., Cao, L., Caria, G., ��ervenkov, D., Chang, M. -C., Chang, P., Chao, Y., Cheaib, R., Chekelian, V., Chen, A., Chen, K. -F., Cheon, B. G., Chilikin, K., Chistov, R., Cho, H. E., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Crnkovic, J., Cunliffe, S., Czank, T., Danilov, M., Dash, N., Di Carlo, S., Dingfelder, J., Dole��al, Z., Dong, T. V., Dossett, D., Dr��sal, Z., Drutskoy, A., Dubey, S., Dutta, D., Eidelman, S., Epifanov, D., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Frost, O., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Gemmler, J., Getzkow, D., Giordano, F., Giri, A., Goldenzweig, P., Golob, B., Greenwald, D., Perdekamp, M. Grosse, Grygier, J., Grzymkowska, O., Guan, Y., Guido, E., Guo, H., Haba, J., Hamer, P., Hara, K., Hara, T., Hasegawa, Y., Hasenbusch, J., Hayasaka, K., Hayashii, H., He, X. H., Heck, M., Hedges, M. T., Heffernan, D., Heider, M., Heller, A., Higuchi, T., Hirose, S., Horiguchi, T., Hoshi, Y., Hoshina, K., Hou, W. -S., Hsiung, Y. B., Hsu, C. -L., Huang, K., Huschle, M., Igarashi, Y., Iijima, T., Imamura, M., Inami, K., Inguglia, G., Ishikawa, A., Itagaki, K., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jacobs, W. W., Jaegle, I., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Jones, M., Joo, C. W., Joo, K. K., Julius, T., Kahn, J., Kakuno, H., Kaliyar, A. B., Kang, J. H., Kang, K. H., Kapusta, P., Karyan, G., Kataoka, S. U., Kato, E., Kato, Y., Katrenko, P., Kawai, H., Kawasaki, T., Keck, T., Kichimi, H., Kiesling, C., Kim, B. H., Kim, C. H., Kim, D. Y., Kim, H. J., Kim, H. -J., Kim, J. B., Kim, K. T., Kim, S. H., Kim, S. K., Kim, Y. J., Kimmel, T., Kindo, H., Kinoshita, K., Kleinwort, C., Klucar, J., Kobayashi, N., Kody��, P., Koga, Y., Konno, T., Korpar, S., Kotchetkov, D., Kouzes, R. T., Kri��an, P., Kroeger, R., Krohn, J. -F., Krokovny, P., Kronenbitter, B., Kuhr, T., Kulasiri, R., Kumar, R., Kumita, T., Kurihara, E., Kuroki, Y., Kuzmin, A., Kvasni��ka, P., Kwon, Y. -J., Lai, Y. -T., Lalwani, K., Lange, J. S., Lee, I. S., Lee, J. K., Lee, J. Y., Lee, S. C., Leitgab, M., Leitner, R., Levit, D., Lewis, P., Li, C. H., Li, H., Li, L. K., Li, Y., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Limosani, A., Liptak, Z., Liu, C., Liu, Y., Liventsev, D., Loos, A., Louvot, R., Lu, P. -C., Lubej, M., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., McNeil, J. T., Merola, M., Metzner, F., Mikami, Y., Miyabayashi, K., Miyachi, Y., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, H. K., Moon, T. J., Mori, T., Morii, T., Moser, H. -G., Mrvar, M., M��ller, T., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakahama, Y., Nakamura, I., Nakamura, K. R., Nakano, E., Nakano, H., Nakano, T., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Neichi, K., Ng, C., Niebuhr, C., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, A., Ogawa, K., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Ono, H., Ono, Y., Onuki, Y., Ostrowicz, W., Oswald, C., Ozaki, H., Pakhlov, P., Pakhlova, G., Pal, B., Panzenb��ck, E., Pardi, S., Park, C. -S., Park, C. W., Park, H., Park, K. S., Park, S. -H., Patra, S., Paul, S., Pavelkin, I., Pedlar, T. K., Peng, T., Pes��ntez, L., Pestotnik, R., Peters, M., Piilonen, L. E., Popov, V., Prasanth, K., Prencipe, E., Prim, M., Prothmann, K., Purohit, M. V., Rabusov, A., Rauch, J., Reisert, B., Resmi, P. K., Ribe��l, E., Ritter, M., Rorie, J., Rostomyan, A., Rozanska, M., Rummel, S., Russo, G., Sahoo, D., Sahoo, H., Saito, T., Sakai, Y., Salehi, M., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sasaki, J., Sasao, N., Sato, Y., Savinov, V., Schl��ter, T., Schneider, O., Schnell, G., Sch��nmeier, P., Schram, M., Schueler, J., Schwanda, C., Schwartz, A. J., Schwenker, B., Seidl, R., Seino, Y., Semmler, D., Senyo, K., Seon, O., Seong, I. S., Sevior, M. E., Shang, L., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T. -A., Shibuya, H., Shinomiya, S., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Sinha, R., Smith, K., Sokolov, A., Soloviev, Y., Solovieva, E., Stani��, S., Stari��, M., Steder, M., Stottler, Z., Strube, J. F., Stypula, J., Sugihara, S., Sugiyama, A., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Suzuki, K., Suzuki, S., Suzuki, S. Y., Suzuki, Z., Takeichi, H., Takizawa, M., Tamponi, U., Tanaka, M., Tanaka, S., Tanida, K., Taniguchi, N., Tao, Y., Taylor, G. N., Tenchini, F., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uchida, T., Ueda, I., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Vahsen, S. E., Van Hulse, C., Van Tonder, R., Vanhoefer, P., Varner, G., Varvell, K. E., Vervink, K., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M. N., Waheed, E., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Watanuki, S., Wedd, R., Wehle, S., Widmann, E., Wiechczynski, J., Williams, K. M., Won, E., Yabsley, B. D., Yamada, S., Yamamoto, H., Yamashita, Y., Yang, S. B., Yashchenko, S., Ye, H., Yelton, J., Yin, J. H., Yook, Y., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, C. C., Zhang, J., Zhang, L. M., Zhang, Z. P., Zhao, L., Zhilich, V., Zhukova, V., Zhulanov, V., Zivko, T., Zupanc, A., and Zwahlen, N.
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment
Abstract: We report the first measurement of the $D^{\ast -}$ meson polarization in the decay $B^0 \to D^{*-} ��^+��_��$ using the full data sample of 772$\times 10^6$ $B\bar{B}$ pairs recorded with the Belle detector at the KEKB electron-positron collider. Our result, $F_L^{D^\ast} = 0.60 \pm 0.08 ({\rm stat}) \pm 0.04 ({\rm sys})$, where $F_L^{D^\ast}$ denotes the $D^{\ast-}$ meson longitudinal polarization fraction, agrees within about $1.7$ standard deviations of the standard model prediction., 16 pages, 4 figures, CKM 2018
Published: 2019
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14. Experimental determination of the isospin of $��_c(2765)^+/��_c(2765)^+$

Author: The Belle Collaboration, Abdesselam, A., Adachi, I., Adamczyk, K., Ahn, J. K., Aihara, H., Said, S. Al, Arinstein, K., Arita, Y., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Aziz, T., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Ban, Y., Bansal, V., Barberio, E., Barrett, M., Bartel, W., Behera, P., Bele��o, C., Belous, K., Bennett, J., Berger, M., Bernlochner, F., Besson, D., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bloomfield, T., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bra��ko, M., Braun, N., Breibeck, F., Browder, T. E., Campajola, M., Cao, L., Caria, G., ��ervenkov, D., Chang, M. -C., Chang, P., Chao, Y., Cheaib, R., Chekelian, V., Chen, A., Chen, K. -F., Chen, Y., Cheon, B. G., Chilikin, K., Chistov, R., Cho, H. E., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Crnkovic, J., Cunliffe, S., Czank, T., Danilov, M., Dash, N., De Nardo, G., Di Carlo, S., Di Capua, F., Dingfelder, J., Dole��al, Z., Dong, T. V., Dossett, D., Dr��sal, Z., Drutskoy, A., Dubey, S., Dutta, D., Eidelman, S., Epifanov, D., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Frost, O., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Gemmler, J., Getzkow, D., Giordano, F., Giri, A., Goldenzweig, P., Golob, B., Greenwald, D., Perdekamp, M. Grosse, Grygier, J., Grzymkowska, O., Guan, Y., Guido, E., Guo, H., Haba, J., Hamer, P., Hara, K., Hara, T., Hartbrich, O., Hasegawa, Y., Hasenbusch, J., Hayasaka, K., Hayashii, H., He, X. H., Heck, M., Hedges, M. T., Heffernan, D., Heider, M., Heller, A., Higuchi, T., Hirose, S., Hoshi, Y., Hoshina, K., Hou, W. -S., Hsiung, Y. B., Hsu, C. -L., Huang, K., Huschle, M., Igarashi, Y., Iijima, T., Imamura, M., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jacobs, W. W., Jaegle, I., Jang, E. -J., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Jones, M., Joo, C. W., Joo, K. K., Julius, T., Kahn, J., Kakuno, H., Kaliyar, A. B., Kang, J. H., Kang, K. H., Kapusta, P., Karyan, G., Kataoka, S. U., Kato, Y., Katrenko, P., Kawai, H., Kawasaki, T., Keck, T., Kichimi, H., Kiesling, C., Kim, B. H., Kim, C. H., Kim, D. Y., Kim, H. J., Kim, H. -J., Kim, J. B., Kim, K. T., Kim, S. H., Kim, S. K., Kim, Y. J., Kimmel, T., Kindo, H., Kinoshita, K., Kleinwort, C., Klucar, J., Kobayashi, N., Kody��, P., Koga, Y., Konno, T., Korpar, S., Kotchetkov, D., Kouzes, R. T., Kri��an, P., Kroeger, R., Krohn, J. -F., Krokovny, P., Kronenbitter, B., Kuhr, T., Kulasiri, R., Kumar, R., Kumita, T., Kurihara, E., Kuroki, Y., Kuzmin, A., Kvasni��ka, P., Kwon, Y. -J., Lai, Y. -T., Lalwani, K., Lange, J. S., Lee, I. S., Lee, J. K., Lee, J. Y., Lee, S. C., Leitgab, M., Leitner, R., Levit, D., Lewis, P., Li, C. H., Li, H., Li, L. K., Li, Y., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Limosani, A., Liptak, Z., Liu, C., Liu, Y., Liventsev, D., Loos, A., Louvot, R., Lu, P. -C., Lubej, M., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., McNeil, J. T., Merola, M., Metzner, F., Miyabayashi, K., Miyachi, Y., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, H. K., Moon, T. J., Mori, T., Morii, T., Moser, H. -G., Mrvar, M., M��ller, T., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakahama, Y., Nakamura, I., Nakamura, K. R., Nakano, E., Nakano, T., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Neichi, K., Ng, C., Niebuhr, C., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, A., Ogawa, K., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Ono, H., Onuki, Y., Oskin, P., Ostrowicz, W., Oswald, C., Ozaki, H., Pakhlov, P., Pakhlova, G., Pal, B., Pang, T., Panzenb��ck, E., Pardi, S., Park, C. -S., Park, C. W., Park, H., Park, K. S., Park, S. -H., Patra, S., Paul, S., Pavelkin, I., Pedlar, T. K., Peng, T., Pes��ntez, L., Pestotnik, R., Peters, M., Piilonen, L. E., Popov, V., Prasanth, K., Prencipe, E., Prim, M. T., Prothmann, K., Purohit, M. V., Rabusov, A., Rauch, J., Reisert, B., Resmi, P. K., Ribe��l, E., Ritter, M., Rorie, J., Rostomyan, A., Rozanska, M., Russo, G., Sahoo, D., Sahoo, H., Sakai, Y., Salehi, M., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sasaki, J., Sasao, N., Sato, Y., Savinov, V., Schl��ter, T., Schneider, O., Schnell, G., Schram, M., Schueler, J., Schwanda, C., Schwartz, A. J., Schwenker, B., Seidl, R., Seino, Y., Semmler, D., Senyo, K., Seon, O., Seong, I. S., Sevior, M. E., Shang, L., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T. -A., Shibuya, H., Shinomiya, S., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Sinha, R., Smith, K., Sokolov, A., Soloviev, Y., Solovieva, E., Stani��, S., Stari��, M., Steder, M., Stottler, Z., Strube, J. F., Stypula, J., Sugihara, S., Sugiyama, A., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Suzuki, K., Suzuki, S., Suzuki, S. Y., Takeichi, H., Takizawa, M., Tamponi, U., Tanaka, M., Tanaka, S., Tanida, K., Taniguchi, N., Tao, Y., Taylor, G. N., Tenchini, F., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Ueda, I., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Vahsen, S. E., Van Hulse, C., Van Tonder, R., Vanhoefer, P., Varner, G., Varvell, K. E., Vervink, K., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M. N., Waheed, E., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Watanuki, S., Wedd, R., Wehle, S., Widmann, E., Wiechczynski, J., Williams, K. M., Won, E., Yabsley, B. D., Yamada, S., Yamamoto, H., Yamashita, Y., Yang, S. B., Yashchenko, S., Ye, H., Yelton, J., Yin, J. H., Yook, Y., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, C. C., Zhang, J., Zhang, L. M., Zhang, Z. P., Zhao, L., Zhilich, V., Zhukova, V., Zhulanov, V., Zivko, T., Zupanc, A., and Zwahlen, N.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report an experimental determination of the isospin of $��_c(2765)^+/��_c(2765)^+$ using 980 fb$^{-1}$ data in the $e^+e^-$ annihilation around $\sqrt{s} = 10.6$ GeV collected by the Belle detector located at the KEKB collider. The isospin partners are searched for in the $��_c(2455)^{++/0} ��^{0}$ channels, and no evidence was obtained. Thus the isospin is determined to be zero, and the particle is established to be a $��_c$., Conference paper submitted for Hadron2019
Published: 2019
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15. Evidence for the decay $B^0\to p\bar{p}��^0$

Author: Belle Collaboration, Pal, B., Adachi, I., Adamczyk, K., Aihara, H., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Bele��o, C., Berger, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bra��ko, M., Browder, T. E., Campajola, M., Cao, L., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., Di Carlo, S., Dole��al, Z., Dong, T. V., Dossett, D., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Guan, Y., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Kaliyar, A. B., Karyan, G., Kichimi, H., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kwon, Y. -J., Lee, J. Y., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Nakao, M., Nath, K. J., Nayak, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pardi, S., Park, S. -H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shen, C. P., Shiu, J. -G., Simon, F., Sokolov, A., Solovieva, E., Stari��, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Uno, S., Urquijo, P., Van Tonder, R., Varner, G., Vinokurova, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanuki, S., Won, E., Yang, S. B., Ye, H., Yelton, J., Yusa, Y., Zhang, J., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report a search for the charmless baryonic decay $B^0\to p\bar{p}��^0$ with a data sample corresponding to an integrated luminosity of 711~$\rm fb^{-1}$ containing $(772\pm 10)\times 10^6$ $B^0\bar{B}^0$ pairs. The data was collected by the Belle experiment running on the $��(4S)$ resonance at the KEKB $e^+e^-$ collider. We measure a branching fraction $\mathcal{B}(B^0\to p\bar{p}��^0)= (5.0\pm1.8\pm0.6 )\times 10^{-7}$, where the first uncertainty is statistical and the second is systematic. The signal has a significance of 3.1 standard deviations and constitutes the first evidence for this decay mode. We also search for the intermediate two-body decays $B^{0}\to��^+\bar{p}$ and $B^0\to\bar��^-p$, and set an upper limit on the branching fraction: $\mathcal{B}(B^0\to ��^+\bar{p})+\mathcal{B}(B^0\to\bar��^-p), 8 pages, 3 figures, Submitted to Phys. Rev. D (RC)
Published: 2019
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16. Search for $B^0 \to X(3872) ��$

Author: Belle Collaboration, Chou, P. -C., Chang, P., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Behera, P., Bennett, J., Berger, M., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bra��ko, M., Browder, T. E., Campajola, M., Cao, L., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dole��al, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Grzymkowska, O., Haba, J., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Kaliyar, A. B., Kato, Y., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lai, Y. -T., Lange, J. S., Lee, J. K., Lee, J. Y., Lee, S. C., Li, C. H., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nath, K. J., Nayak, M., Niiyama, M., Nishida, S., Nishimura, K., Ogawa, K., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shiu, J. -G., Shwartz, B., Singh, J. B., Solovieva, E., Stari��, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tao, Y., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Vossen, A., Waheed, E., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanuki, S., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report the results of a search for the decay $B^0 \to X(3872)(\to J/��^+ ��^-) ��$. The analysis is performed on a data sample corresponding to an integrated luminosity of $711\,{\rm fb}^{-1}$ and containing $772 \times 10^6 B\bar{B}$ pairs, collected with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider running at the $��(4S)$ resonance energy. We find no evidence for a signal and place an upper limit of $\mathcal{B}(B^0 \to X(3872)��)\times \mathcal{B}(X(3872) \to J/��^+ ��^-) < 5.1 \times 10^{-7}$ at 90% confidence level., 7 pages, 3 figures
Published: 2019
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17. Azimuthal asymmetries of back-to-back $��^\pm-(��^0,��,��^\pm)$ pairs in $e^+e^-$ annihilation

Author: Belle Collaboration, Li, H., Vossen, A., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Babu, V., Badhrees, I., Bakich, A. M., Bennett, J., Bhardwaj, V., Bilka, T., Biswal, J., Bobrov, A., Bra��ko, M., Campajola, M., Cao, L., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Cho, H. E., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Di Capua, F., Di Carlo, S., Dong, T. V., Eidelman, S., Ferber, T., Fulsom, B. G., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Hartbrich, O., Hayasaka, K., Hayashii, H., Huang, K., Inami, K., Ishikawa, A., Itoh, R., Jacobs, W. W., Jang, E. -J., Jia, S., Jin, Y., Kang, K. H., Karyan, G., Kim, D. Y., Kim, S. H., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kwon, Y. -J., Lee, S. C., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., Luo, T., MacQueen, C., Masuda, M., Matsuda, T., Merola, M., Miyata, H., Mizuk, R., Mussa, R., Nakano, T., Nakao, M., Nath, K. J., Natkaniec, Z., Nishida, S., Ono, H., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Prim, M. T., Russo, G., Sahoo, D., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seidl, R., Seino, Y., Senyo, K., Shiu, J. -G., Simon, F., Solovieva, E., Stari��, M., Stottler, Z. S., Takizawa, M., Tanida, K., Tenchini, F., Uchida, M., Uno, S., Van Tonder, R., Varner, G., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Won, E., Yang, S. B., Ye, H., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment
Abstract: This work reports the first observation of azimuthal asymmetries around the thrust axis in $e^+e^-$ annihilation of pairs of back-to-back charged pions in one hemisphere, and $��^0$ and $��$ mesons in the opposite hemisphere. These results are complemented by a new analysis of pairs of back-to-back charged pions. The $��^0$ and $��$ asymmetries rise with the relative momentum $z$ of the detected hadrons as well as with the transverse momentum with respect to the thrust axis. These asymmetries are sensitive to the Collins fragmentation function $H_1^{\perp}$ and provide complementary information to previous measurements with charged pions and kaons in the final state. In particular, the $��$ final states will provide additional information on the flavor structure of $H_1^{\perp}$. This is the first measurement of the explicit transverse-momentum dependence of the Collins fragmentation function from Belle data. It uses a dataset of 980.4~fb$^{-1}$ collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV., 31 pages, 14 figures, submitted to PRD
Published: 2019
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18. First measurement of the CKM angle $��_3$ with $B^{\pm}\to D(K_{\rm S}^0��^+��^-��^0)K^{\pm}$ decays

Author: Belle Collaboration, Resmi, P. K., Libby, J., Trabelsi, K., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Babu, V., Badhrees, I., Bakich, A. M., Bele��o, C., Bennett, J., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bozek, A., Bra��ko, M., Campajola, M., ��ervenkov, D., Chen, A., Cheon, B. G., Cho, H. E., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., De Nardo, G., Di Capua, F., Di Carlo, S., Dole��al, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Guan, Y., Hayasaka, K., Hayashii, H., Hou, W. -S., Huang, K., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jin, Y., Joffe, D., Kaliyar, A. B., Kang, K. H., Karyan, G., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lee, S. C., Li, Y. B., Lieret, K., Liventsev, D., Lu, P. -C., Luo, T., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Moon, H. K., Nakano, T., Nakao, M., Nath, K. J., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Prencipe, E., Prim, M. T., Ritter, M., R��hrken, M., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shiu, J. -G., Shwartz, B., Solovieva, E., Stari��, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Uno, S., Usov, Y., Van Tonder, R., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, X. L., Watanuki, S., Won, E., Yang, S. B., Ye, H., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We present the first model-independent measurement of the CKM unitarity triangle angle $��_3$ using $B^{\pm}\to D(K_{\rm S}^0��^+��^-��^0)K^{\pm}$ decays, where $D$ indicates either a $D^{0}$ or $\overline{D}^{0}$ meson. Measurements of the strong-phase difference of the $D \to K_{\rm S}^0��^+��^-��^0$ amplitude obtained from CLEO-c data are used as input. This analysis is based on the full Belle data set of $772\times 10^{6}$ $B\overline{B}$ events collected at the $��(4S)$ resonance. We obtain $��_3 = (5.7~^{+10.2}_{-8.8} \pm 3.5 \pm 5.7)^{\circ}$ and the suppressed amplitude ratio $r_{B} = 0.323 \pm 0.147 \pm 0.023 \pm 0.051$. Here the first uncertainty is statistical, the second is the experimental systematic, and the third is due to the precision of the strong-phase parameters measured from CLEO-c data. The 95% confidence interval on $��_3$ is $(-29.7,~109.5)^{\circ}$, which is consistent with the current world average.
Published: 2019
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19. Observation of a new structure near 10.75 GeV in the energy dependence of the $e^+e^-\to��(nS)��^+��^-$ ($n=1,2,3$) cross sections

Author: Mizuk, R., Bondar, A., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Badhrees, I., Bahinipati, S., Bakich, A. M., Behera, P., Bele��o, C., Berger, M., Bhardwaj, V., Bilka, T., Biswal, J., Bozek, A., Bra��ko, M., Browder, T. E., Campajola, M., Cao, L., ��ervenkov, D., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., Dash, N., De Nardo, G., Di Capua, F., Di Carlo, S., Dole��al, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Grzymkowska, O., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jin, Y., Joffe, D., Joo, K. K., Kang, K. H., Karyan, G., Kawasaki, T., Kichimi, H., Kim, D. Y., Kim, H. J., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, R., Kuzmin, A., Lange, J. S., Lee, J. Y., Lee, S. C., Li, L. K., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., Luo, T., MacNaughton, J., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyata, H., Mohanty, G. B., Mori, T., Mussa, R., Nakano, T., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Pal, B., Pang, T., Pardi, S., Park, S. -H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shiu, J. -G., Shwartz, B., Sokolov, A., Solovieva, E., Stari��, M., Strube, J. F., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Vinokurova, A., Wang, B., Wang, C. H., Wang, P., Won, E., Yang, S. B., Ye, H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report a new measurement of the $e^+e^-\to��(nS)��^+��^-$ ($n=1,2,3$) cross sections at energies from 10.52 to 11.02 GeV using data collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We observe a new structure in the energy dependence of the cross sections; if described by a Breit-Wigner function its mass and width are found to be $M=(10752.7\pm5.9\,^{+0.7}_{-1.1})\,$MeV/$c^2$ and $��=(35.5^{+17.6}_{-11.3}\,^{+3.9}_{-3.3})\,$MeV, where the first error is statistical and the second is systematic. The global significance of the new structure including systematic uncertainty is 5.2 standard deviations. We also find evidence for the $e^+e^-\to��(1S)��^+��^-$ process at the energy 10.52 GeV, which is below the $B\bar{B}$ threshold., 26 pages, 12 figures, final version accepted by JHEP
Published: 2019
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20. Observation of $ ��^- \rightarrow ��^- ��_�� e^+ e^-$ and search for $��^- \rightarrow ��^- ��_�� ^+ ��^-$

Author: Belle Collaboration, Jin, Y., Aihara, H., Epifanov, D., Adachi, I., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bahinipati, S., Bansal, V., Behera, P., Berger, M., Bhardwaj, V., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bra��ko, M., Campajola, M., Cao, L., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Di Carlo, S., Dole��al, Z., Dong, T. V., Dossett, D., Eidelman, S., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Giri, A., Goldenzweig, P., Golob, B., Greenwald, D., Grzymkowska, O., Haba, J., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W. -S., Huang, K., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Joffe, D., Joo, K. K., Kahn, J., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lalwani, K., Lange, J. S., Lee, J. Y., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liptak, Z., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Park, S. -H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Rostomyan, A., Russo, G., Sahoo, D., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shiu, J. -G., Shwartz, B., Simon, F., Singh, J. B., Sokolov, A., Solovieva, E., Stani��, S., Stari��, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Watanuki, S., Won, E., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics::Experiment
Abstract: We present the first measurements of branching fractions of rare tau-lepton decays, $��^- \rightarrow ��^- ��_�� \ell^+ \ell^-$ ($\ell = e$ or $��$), using a data sample corresponding to 562 fb$^{-1}$ collected at a center-of-mass energy of 10.58 GeV with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. The $��^- \rightarrow ��^- ��_��e^+ e^-$ decay is observed for the first time with 7.0$��$ significance. The partial branching fraction determined by the structure-dependent mechanisms mediated by either a vector or an axial-vector current for the mass region $M_{��e e}>1.05$ GeV/$c^2$ is measured to be $\mathcal{B}(��^-\rightarrow ��^- ��_��e^+ e^-)[M_{��^- e^+ e^-}>1.05~{\rm GeV}/c^2] = (5.90 \pm 0.53 \pm 0.85 \pm 0.11) \times 10^{-6}$, where the first uncertainty is statistical, the second is systematic, and the third is due to the model dependence. In the full phase space, due to the different detection efficiencies for the structure-dependent mechanisms mediated by axial-vector and vector currents, the branching fraction varies from $\mathcal{B}_{A}(��^-\rightarrow ��^- ��_��e^+ e^-) = (1.46 \pm 0.13 \pm 0.21) \times 10^{-5}$ to $\mathcal{B}_{V}(��^-\rightarrow ��^- ��_��e^+ e^-) = (3.01 \pm 0.27 \pm 0.43) \times 10^{-5}$, respectively. An upper limit is set on the branching fraction of the $��^- \rightarrow ��^- ��_��^+ ��^-$ decay, $\mathcal{B}(��^-\rightarrow ��^- ��_��^+ ��^-) < 1.14 \times 10^{-5}$, at the 90% confidence level., 8 pages, 5 figures, accepted by PRD(RC)
Published: 2019
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21. Measurements of the Branching Fractions ${\cal B}(B^{-} \to \bar��_{c}^{-} ��_{c}^{'0})$, ${\cal B}(B^{-} \to \bar��_{c}^{-} ��_{c}(2645)^{0})$ and ${\cal B}(B^{-} \to \bar��_{c}^{-} ��_{c}(2790)^{0}) $

Author: Belle Collaboration, Li, Y., Li, Y. B., Shen, C. P., Adachi, I., Aihara, H., Asner, D. M., Atmacan, H., Aulchenko, V., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Behera, P., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bra��ko, M., Browder, T. E., Campajola, M., Cao, L., ��ervenkov, D., Chang, P., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., De Nardo, G., Di Capua, F., Di Carlo, S., Dole��al, Z., Dong, T. V., Eidelman, S., Fast, J. E., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Grube, B., Hara, T., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joo, K. K., Kang, K. H., Karyan, G., Kichimi, H., Kim, C. H., Kim, D. Y., Kim, S. H., Kinoshita, K., Kody��, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kuzmin, A., Kwon, Y. -J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., Lewis, P., Li, C. H., Li, L. K., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyata, H., Mizuk, R., Mussa, R., Nath, K. J., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, H., Park, S. -H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., R��hrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Santelj, L., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shiu, J. -G., Shwartz, B., Sokolov, A., Solovieva, E., Stani��, S., Stari��, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Van Tonder, R., Varner, G., Vinokurova, A., Wang, C. H., Wang, M. -Z., Wang, X. L., Watanabe, M., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences, High Energy Physics::Experiment
Abstract: Using the data sample of 711 fb$^{-1}$ of $��(4S)$ on-resonance data taken by the Belle detector at the KEKB asymmetric-energy electron-positron collider, we present the first measurements of branching fractions of the decays $B^{-} \to \bar��_{c}^{-} ��_{c}^{'0}$, $B^{-} \to \bar��_{c}^{-} ��_{c}(2645)^{0}$, and $B^{-} \to \bar��_{c}^{-} ��_{c}(2790)^{0} $. The signal yields for these decays are extracted from the recoil mass spectrum of the system recoiling against $\bar��_{c}^{-}$ baryons in selected $B^-$ candidates. The branching fraction of $B^{-} \to \bar��_{c}^{-} ��_{c}(2790)^{0}$ is measured to be $ (1.1 \pm 0.4 \pm 0.2)\times 10^{-3}$, where the first uncertainty is statistical and the second systematic. The 90\% credibility level upper limits on ${\cal B}(B^{-} \to \bar��_{c}^{-} ��_{c}^{'0})$ and ${\cal B}(B^{-} \to \bar��_{c}^{-} ��_{c}(2645)^{0})$ are determined to be $6.5\times 10^{-4}$ and $7.9\times 10^{-4}$, respectively., 9 pages, 3 figures
Published: 2019
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22. Search for $X(3872)$ and $X(3915)$ decay into $��_{c1} ��^0$ in $B$ decays at Belle

Author: Bhardwaj, V., Jia, S., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bahinipati, S., Bansal, V., Behera, P., Bele��o, C., Berger, M., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bra��ko, M., Browder, T. E., Campajola, M., Cao, L., ��ervenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Di Carlo, S., Dole��al, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Greenwald, D., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kaliyar, A. B., Karyan, G., Kato, Y., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumar, R., Kwon, Y. -J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, J. K., Lee, J. Y., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lu, P. -C., MacNaughton, J., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakao, M., Nath, K. J., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Park, S. -H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Resmi, P. K., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shen, C. P., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stari��, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Uno, S., Urquijo, P., Van Tonder, R., Varner, G., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanuki, S., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Zhang, J., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report a search for $X(3872)$ and $X(3915)$ in $B^+ \to ��_{c1} ��^0 K^+$ decays. We set an upper limit of $\mathcal{B}(B^+ \to X(3872) K^+) \times \mathcal{B}(X(3872) \to ��_{c1} ��^0)$ $ < 8.1 \times 10^{-6}$ and $\mathcal{B}(B^+ \to X(3915) K^+) \times \mathcal{B}(X(3915) \to ��_{c1} ��^0)$ $ < 3.8 \times 10^{-5}$ at 90\% confidence level. We also measure $\mathcal{B}(X(3872) \to ��_{c1} ��^0)/\mathcal{B}(X(3872) \to J/��^+ ��^-) < 0.97$ at 90\% confidence level. The results reported here are obtained from $772 \times 10^{6}$ $B\overline{B}$ events collected at the $��(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider., 7 pages, 4 figures, submitted to PRD (RC)
Published: 2019
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23. Measurement of branching fraction and final-state asymmetry for the $\bar{B}^{0}\to K^{0}_{S}K^{\mp}��^{\pm}$ decay

Author: Belle Collaboration, Lai, Y. -T., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Behera, P., Bele\{n}o, C., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bra��ko, M., Cao, L., ��ervenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dole��al, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Greenwald, D., Guan, Y., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., Huang, K., Iijima, T., Inami, K., Inguglia, G., a, A. Ishikaw, Itoh, R., Iwasaki, M., Iwasaki, Y., Jia, S., Jin, Y., Joffe, D., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, S . H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lalwani, K ., Lange, J. S., Lee, I. S., Lee, J. K., Lee, J. Y., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liptak, Z., Liventsev, D., Lu, P. -C., bej, M. Lu, Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mori, T., Mrvar, M., Mussa, R., Nakano, E., Nakao, M., Nath, K. J., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Pakhlova, G., Pal, B., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Rabusov, A., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shen, C. P., bata, T. -A. Shi, Shiu, J. -G., Solovieva, E., Stari��, M., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tao, Y., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Varvell, K. E., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Widmann, E., Won, E., Yamamoto, H., Yang, S. B., Ye, H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhukova, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics::Experiment
Abstract: We report a measurement of the branching fraction and final-state asymmetry for the $\bar{B}^{0}\to K^{0}_{S}K^{\mp}��^{\pm}$ decays. The analysis is based on a data sample of 711 $\rm{fb}^{-1}$ collected at the $��(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. We obtain a branching fraction of $(3.60\pm0.33\pm0.15)\times10^{-6}$ and a final-state asymmetry of $(-8.5\pm8.9\pm0.2)\%$, where the first uncertainties are statistical and the second are systematic. Hints of peaking structures are seen in the differential branching fractions measured as functions of Dalitz variables., 17 pages, 4 figures, to be submitted to PRD(RC)
Published: 2019
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24. Observation of a vector charmoniumlike state in $e^+e^- \to D^+_sD_{s1}(2536)^-+c.c.$

Author: Jia, S., Shen, C. P., Babu, V., Mizuk, R., Mussa, R., Nath, K. J., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Badhrees, I., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, H., Park, S.-H., Patra, S., Paul, S., Bakich, A. M., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Prim, M. T., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Behera, P., Sahoo, D., Sakai, Y., Sandilya, S., Santelj, L., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Bhuyan, B., Sevior, M. E., Shiu, J.-G., Shwartz, B., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Sumiyoshi, T., Sutcliffe, W., Bilka, T., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Tonder, R., Biswal, J., Varner, G., Vinokurova, A., Vorobyev, V., Wang, C. H., Wang, M.-Z., Watanabe, M., Won, E., Yang, S. B., Ye, H., Yin, J. H., Bobrov, A., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., Belle Collaboration, Bonvicini, G., Bozek, A., Yuan, C. Z., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chang, P., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Wang, X. L., Cho, K., Choi, S.-K., Choi, Y., Cinabro, D., Cunliffe, S., De Nardo, G., Di Capua, F., Di Carlo, S., Doležal, Z., Dong, T. V., Adachi, I., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Aihara, H., Goldenzweig, P., Golob, B., Hayasaka, K., Hayashii, H., Hou, W.-S., Hsu, C.-L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Asner, D. M., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jin, Y., Joo, K. K., Kang, K. H., Karyan, G., Kichimi, H., Kim, B. H., Atmacan, H., Kim, C. H., Kim, D. Y., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kroeger, R., Krokovny, P., Kulasiri, R., Kuzmin, A., Aulchenko, V., Kwon, Y.-J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., Lewis, P., Li, C. H., Li, L. K., Li, Y. B., Li Gioi, L., Ayad, R., Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Belle, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: mass: measured, M242M, +D%2Fs%2B+D%2Fs1%282536%29%22">electron positron --> D/s+ D/s1(2536), measured [channel cross section], +D*%282010%29+K%22">D/s1(2536) --> D*(2010) K, measured [width], FOS: Physical sciences, M242W, BELLE, annihilation [electron positron], M189W, electron positron: annihilation, +D%2Fs-+D%2Fs1%282536%29%2B%22">electron positron --> D/s- D/s1(2536)+, High Energy Physics - Experiment, width [mass], High Energy Physics - Experiment (hep-ex), KEK-B, mass: width, High Energy Physics - Phenomenology (hep-ph), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], M189:Desig=1, radiation: initial-state interaction, ddc:530, D/s1(2536): branching ratio, initial state, M189:Desig=8, measured [mass], initial-state interaction [radiation], measured [branching ratio], electron positron: colliding beams, High Energy Physics - Phenomenology, branching ratio: measured, D+, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], M242:Desig=1, M242:Desig=2, colliding beams [electron positron], branching ratio [D/s1(2536)], M189M, channel cross section: measured, width: measured, experimental results
Abstract: Using a data sample of 921.9 fb$^{-1}$ collected with the Belle detector, we study the process of $e^+e^-\to D^+_sD_{s1}(2536)^-+c.c.$ via initial-state radiation. We report the first observation of a vector charmoniumlike state decaying to $D^+_sD_{s1}(2536)^-+c.c.$ with a significance of 5.9$\sigma$, including the systematic uncertainties. The measured mass and width are $(4625.9^{+6.2}_{-6.0}({\rm stat.})\pm0.4({\rm syst.}))~{\rm MeV}/c^{2}$ and $(49.8^{+13.9}_{-11.5}({\rm stat.})\pm4.0({\rm syst.}))~{\rm MeV}$, respectively. The product of the $e^+e^-\to D^+_sD_{s1}(2536)^-+c.c.$ cross section and the branching fraction of $D_{s1}(2536)^-\to{\bar D}^{*0}K^-$ is measured from the $D_s \bar{D}_{s1}(2536)$ threshold to 5.59~GeV., Comment: 8 pages, 3 figures, plus 2 pages Supplemental Material
Published: 2019
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25. Study of $B \to p {\bar p} ��$

Author: Chu, K., Wang, M. -Z., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Behera, P., Beleno, C., Bennett, J., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bracko, M., Campajola, M., Cao, L., Cervenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Capua, F., Di Carlo, S., Dolezal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jin, Y., Joffe, D., Joo, K. K., Karyan, G., Kawasaki, T., Kim, D. Y., Kim, S. H., Kinoshita, K., Kodys, P., Korpar, S., Krizan, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kwon, Y. -J., Lai, Y. -T., Lee, I. S., Lee, S. C., Li, L. K., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., Luo, T., Masuda, M., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mori, T., Mussa, R., Nakano, E., Nakano, T., Nakao, M., Nath, K. J., Nayak, M., Nisar, N. K., Nishida, S., Nishimura, K., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pal, B., Pang, T., Pardi, S., Park, C. W., Park, H., Park, S. -H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Prim, M. T., Resmi, P. K., Ritter, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Santelj, L., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shen, C. P., Shiu, J. -G., Solovieva, E., Staric, M., Stottler, Z. S., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Varner, G., Vinokurova, A., Vossen, A., Wang, B., Wang, C. H., Wang, P., Wang, X. L., Wiechczynski, J., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: Using a data sample of $772 \times 10^6$ BB pairs collected on the $��(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider, we report the observations of $B^0\to p{\bar p}��^+��^-$ and $B^+ \to p{\bar p}��^+��^0$. We measure a decay branching fraction of $(0.83 \pm 0.17 \pm 0.17) \times 10^-6$ in $B^0\to p{\bar p}��^+��^-$ for $M_{��^+��^-} < 1.22 GeV/c^2$ with a significance of 5.5 standard deviations. The contribution from $B0 \to p{\bar p}K^0$ is excluded. We measure a decay branching fraction of $(4.58 \pm 1.17 \pm 0.67) \times 10^-6$ for $B^+ \to p{\bar p}��^+��^0$ with $M_{��^+��^0} < 1.3 GeV/c^2$ with a significance of 5.4 standard deviations. We study the difference of the $M_{p{\bar p}}$ distributions in $B^0\to p{\bar p}��^+��^-$ and $B^+ \to p{\bar p}��^+��^0$., 7 pages, 4 figures, submitted to Phys.Rev.D
Published: 2019
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26. Observation of the radiative decays of $��(1S)$ to $��_{c1}$

Author: Katrenko, P., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aushev, T., Badhrees, I., Bahinipati, S., Behera, P., Beleno, C., Bennett, J., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bonvicini, G., Bracko, M., Campajola, M., Cao, L., Cervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Di Capua, F., Di Carlo, S., Dolezal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Grzymkowska, O., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W. -S., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Karyan, G., Kichimi, H., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kodys, P., Korpar, S., Kroeger, R., Kuhr, T., Lee, I. S., Lee, S. C., Lewis, P., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, T. J., Mori, T., Mussa, R., Nakano, E., Nakano, T., Nakao, M., Nayak, M., Nisar, N. K., Nishida, S., Nishimura, K., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, C. W., Park, H., Park, S. -H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Prim, M. T., Ritter, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shen, C. P., Shiu, J. -G., Solovieva, E., Staric, M., Stottler, Z. S., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vossen, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report the first observation of the radiative decay of the $��(1S)$ into a charmonium state. The statistical significance of the observed signal of $��(1S) \to ��_{c1}$ is 6.3 standard deviations including systematics. The branching fraction is calculated to be Br($��(1S) \to ��_{c1}$) = (4.7^{+2.4}_{-1.8} (stat) ^{+0.4}_{-0.5} (sys)) * 10^{-5}. We also searched for $��(1S)$ radiative decays into $��_{c0,2}$ and $��_c(1S,2S)$ and set upper limits on their branching fractions. These results are obtained from a 24.9 fb^{-1} data sample collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider at a center-of-mass energy equal to the $��(2S)$ mass using $��(1S)$ tagging by the $��(2S) \to ��(1S) ��^+��^-$ transitions., 7pages, 3 figures
Published: 2019
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27. Measurement of $\mathcal{R}(D)$ and $\mathcal{R}(D^*)$ with a semileptonic tagging method

Author: Caria, G., Urquijo, P., Adachi, I., Aihara, H., Al Said, S., Asner, D.M., Atmacan, H., Aushev, T., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A.M., Behera, P., Beleño, C., Bennett, J., Bhuyan, B., Bilka, T., Biswal, J., Bozek, A., Bračko, M., Browder, T.E., Campajola, M., Červenkov, D., Chang, P., Cheaib, R., Chekelian, V., Chen, A., Cheon, B.G., Chilikin, K., Cho, H.E., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., De Nardo, G., Di Capua, F., Di Carlo, S., Doležal, Z., Dong, T.V., Eidelman, S., Epifanov, D., Fast, J.E., Ferber, T., Ferlewicz, D., Fulsom, B.G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Greenwald, D., Grzymkowska, O., Guan, Y., Hartbrich, O., Hayasaka, K., Hayashii, H., Higuchi, T., Hou, W.-S., Hsu, C.-L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W.W., Jeon, H.B., Jia, S., Jin, Y., Joffe, D., Joo, K.K., Kaliyar, A.B., Kang, K.H., Karyan, G., Kawasaki, T., Kichimi, H., Kim, C.H., Kim, D.Y., Kim, H.J., Kim, K.T., Kim, S.H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krohn, J.-F., Krokovny, P., Kuhr, T., Kumar, R., Kwon, Y.-J., Lange, J.S., Lee, I.S., Lee, J.K., Lee, S.C., Li, L.K., Li, Y.B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Luo, T., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mohanty, G.B., Moon, T.J., Mori, T., Mussa, R., Nakamura, K.R., Nakao, M., Nath, K.J., Nayak, M., Nisar, N.K., Nishida, S., Nishimura, K., Ogawa, K., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pal, B., Pang, T., Park, H., Park, S.-H., Patra, S., Paul, S., Pedlar, T.K., Pestotnik, R., Piilonen, L.E., Popov, V., Prencipe, E., Prim, M.T., Rabusov, A., Resmi, P.K., Ritter, M., Rozanska, M., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A.J., Seino, Y., Senyo, K., Sevior, M.E., Shebalin, V., Shiu, J.-G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z.S., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Uno, S., Usov, Y., Vahsen, S.E., Van Tonder, R., Varner, G., Varvell, K.E., Vossen, A., Waheed, E., Wang, B., Wang, C.H., Wang, M.-Z., Wang, P., Wang, X.L., Watanuki, S., Wiechczynski, J., Won, E., Yamamoto, H., Yang, S.B., Ye, H., Yin, J.H., Yuan, C.Z., Zhang, Z.P., Zhilich, V., Zhukova, V., Zhulanov, V., Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Belle, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: Upsilon(10570): electroproduction, B: semileptonic decay, +K-+pi%2B+pi0%22">D0 --> K- pi+ pi0, 14.40.Nd, FOS: Physical sciences, BELLE, electron positron: annihilation, D*(2010): hadronic decay, +K0%28S%29+pi%2B+pi0%22">D+ --> K0(S) pi+ pi0, High Energy Physics - Experiment, +K-+2pi%2B+pi%22">D0 --> K- 2pi+ pi, High Energy Physics - Experiment (hep-ex), +K0%28S%29+K%2B%22">D+ --> K0(S) K+, +K-+K%2B+pi%2B%22">D+ --> K- K+ pi+, KEK-B, +K-+2pi%2B%22">D+ --> K- 2pi+, +K0%28S%29+pi%2B%22">D+ --> K0(S) pi+, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], +K0%28S%29+2pi%2B+pi%22">D+ --> K0(S) 2pi+ pi, B: branching ratio, +D0+pi0%22">D*(2010)0 --> D0 pi0, +D+tau-+antineutrino%2Ftau%22">B --> D tau- antineutrino/tau, +K0%28S%29+pi%2B+pi%22">D0 --> K0(S) pi+ pi, B: pair production, branching ratio: ratio: measured, High Energy Physics::Phenomenology, D: hadronic decay, electron positron: colliding beams, mass difference: (D*(2010) D), +pi%2B+pi%22">D0 --> pi+ pi, +D0+pi%2B%22">D*(2010)+ --> D0 pi+, 13.20.He, +K%2B+K%22">D0 --> K+ K, Elementary Particles and Fields, +K0%28S%29+K%2B+K%22">D0 --> K0(S) K+ K, +K-+pi%2B%22">D0 --> K- pi+, High Energy Physics::Experiment, +K0%28S%29+pi0%22">D0 --> K0(S) pi0, +D*%282010%29+tau-+antineutrino%2Ftau%22">B --> D*(2010) tau- antineutrino/tau, +D%2B+pi0%22">D*(2010)+ --> D+ pi0, experimental results
Abstract: The experimental results on the ratios of branching fractions $\mathcal{R}(D) = {\cal B}(\bar{B} \to D \tau^- \bar{\nu}_{\tau})/{\cal B}(\bar{B} \to D \ell^- \bar{\nu}_{\ell})$ and $\mathcal{R}(D^*) = {\cal B}(\bar{B} \to D^* \tau^- \bar{\nu}_{\tau})/{\cal B}(\bar{B} \to D^* \ell^- \bar{\nu}_{\ell})$, where $\ell$ denotes an electron or a muon, show a long-standing discrepancy with the Standard Model predictions, and might hint to a violation of lepton flavor universality. We report a new simultaneous measurement of $\mathcal{R}(D)$ and $\mathcal{R}(D^*)$, based on a data sample containing $772 \times 10^6$ $B\bar{B}$ events recorded at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB $e^+ e^-$ collider. In this analysis the tag-side $B$ meson is reconstructed in a semileptonic decay mode and the signal-side $\tau$ is reconstructed in a purely leptonic decay. The measured values are $\mathcal{R}(D)= 0.307 \pm 0.037 \pm 0.016$ and $\mathcal{R}(D^*) = 0.283 \pm 0.018 \pm 0.014$, where the first uncertainties are statistical and the second are systematic. These results are in agreement with the Standard Model predictions within $0.2$, $1.1$ and $0.8$ standard deviations for $\mathcal{R}(D)$, $\mathcal{R}(D^*)$ and their combination, respectively. This work constitutes the most precise measurements of $\mathcal{R}(D)$ and $\mathcal{R}(D^*)$ performed to date as well as the first result for $\mathcal{R}(D)$ based on a semileptonic tagging method., Comment: 8 pages, 1 figure, submitted to Physical Review Letters
Published: 2019
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28. Measurement of eta_c(1S), eta_c(2S) and non-resonant eta' pi+ pi- production via two-photon collisions

Author: Xu, Q. N., Adachi, I., Badhrees, I., Mussa, R., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Okuno, S., Ono, H., Onuki, Y., Bakich, A. M., Pakhlov, P., Pakhlova, G., Pal, B., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Ritter, M., Bansal, V., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Barberio, E., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T.-A., Shimizu, N., Shiu, J.-G., Sokolov, A., Behera, P., Solovieva, E., Starič, M., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uehara, S., Berger, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Van Hulse, C., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, B., Bhardwaj, V., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Widmann, E., Won, E., Ye, Hua, Yuan, C. Z., Bhuyan, B., Yusa, Y., Zakharov, S., Zhang, C. C., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., Zupanc, A., Belle Collaboration, Biswal, J., Bondar, A., Aihara, H., Bozek, A., Bračko, M., Červenkov, D., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S.-K., Choi, Y., Cinabro, D., Al Said, S., Cunliffe, S., Czank, T., Dash, N., Di Carlo, S., Doležal, Z., Drásal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Asner, D. M., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Goldenzweig, P., Guan, Y., Guido, E., Haba, J., Atmacan, H., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W.-S., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Aulchenko, V., Jaegle, I., Jeon, H. B., Jin, Y., Joo, K. K., Julius, T., Kaliyar, A. B., Kang, K. H., Karyan, G., Kawasaki, T., Kichimi, H., Aushev, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Ayad, R., Kulasiri, R., Kwon, Y.-J., Lee, I. S., Lee, S. C., Li, L. K., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lubej, M., Babu, V., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Moon, H. K., and Mori, T.
Subjects: two-photon [exchange], (pi+ pi-) [mass spectrum], measured [channel cross section], FOS: Physical sciences, BELLE, annihilation [electron positron], width: measured [eta/c(2980)], +eta%28958%29+pi%2B+pi%22">eta/c(3590) --> eta(958) pi+ pi, interaction [photon photon], width [mass], High Energy Physics - Experiment, photoproduction [eta/c(2980)], High Energy Physics - Experiment (hep-ex), KEK-B, hadronic decay [eta(958)], decay modes [eta/c(2980)], ddc:530, width: measured [eta/c(3590)], Nuclear Experiment, +photon+rho%28770%29%22">eta(958) --> photon rho(770), radiative decay [eta(958)], mass: measured [eta/c(3590)], photoproduction [eta/c(3590)], colliding beams [electron positron], High Energy Physics::Experiment, branching ratio, +eta+pi%2B+pi%22">eta(958) --> eta pi+ pi, (eta(958) pi+ pi-) [mass spectrum], mass: measured [eta/c(2980)], statistical, experimental results
Abstract: We report the measurement of gamma gamma to eta_c(1S), eta_c(2S) to eta' pi+ pi- with eta' decays to gamma rho and eta pi+ pi- using 941 fb^{-1} of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The eta_c(1S) mass and width are measured to be M = [2984.6\pm0.7 (stat.)\pm2.2 (syst.)] MeV/c^{2} and \Gamma = [30.8^{+2.3}_{-2.2}~(stat.) \pm 2.5~(syst.)] MeV, respectively. First observation of eta_c(2S) to eta' pi+ pi- with a significance of 5.5sigma including systematic error is obtained, and the eta_c(2S) mass is measured to be M = [3635.1\pm3.7~(stat.)\pm2.9~(syst.)] MeV/c^{2}. The products of the two-photon decay width and branching fraction (B) of decays to eta'pi+ pi- are determined to be \Gamma_{gamma gamma}B = [65.4\pm2.6~(stat.)\pm6.9~(syst.)] eV for eta_c(1S) and [5.6^{+1.2}_{-1.1}~(stat.)\pm1.1~(syst.)] eV for eta_c(2S). A new decay mode for the eta_c(1S) to eta'f_0(2080) with f_0(2080) to pi+ pi- is observed with a statistical significance of 20sigma. The f_0(2080) mass and width are determined to be M = [2083^{+63}_{-66}~(stat.)\pm 32~(syst.)] MeV/c^{2} and \Gamma = [178^{+60}_{-178}~(stat.) \pm 55~(syst.)] MeV. The cross sections for gamma gamma to eta' pi+ pi- and eta'f_{2}(1270) are measured for the first time., Comment: 19 pages, 14 figures
Published: 2018
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29. Measurement of $\cos{2��}$ in $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} ��^{+} ��^{-}$ decays by a combined time-dependent Dalitz plot analysis of BaBar and Belle data

Author: BaBar, The, Collaborations, Belle, Adachi, I., Adye, T., Ahmed, H., Ahn, J. K., Aihara, H., Akar, S., Alam, M. S., Albert, J., Anulli, F., Arnaud, N., Asner, D. M., Aston, D., Atmacan, H., Aushev, T., Ayad, R., Badhrees, I., Bakich, A. M., Banerjee, Sw., Bansal, V., Barlow, R. J., Batignani, G., Beaulieu, A., Behera, P., Bellis, M., Ben-Haim, E., Bernard, D., Bernlochner, F. U., Bettarini, S., Bettoni, D., Bevan, A. J., Bhardwaj, V., Bhuyan, B., Bianchi, F., Biasini, M., Biswal, J., Blinov, V. E., Bomben, M., Bondar, A., Bonneaud, G. R., Bozek, A., Bozzi, C., Bra��ko, M., Browder, T. E., Brown, D. N., B��nger, C., Burchat, P. R., Buzykaev, A. R., Calabrese, R., Calcaterra, A., Calderini, G., Di Carlo, S., Carpinelli, M., Cartaro, C., Casarosa, G., Cenci, R., Chao, D. S., Chauveau, J., Cheaib, R., Chen, A., Chen, C., Cheng, C. H., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Chrzaszcz, M., Cibinetto, G., Cinabro, D., Cochran, J., Coleman, J. P., Convery, M. R., Cowan, G., Cowan, R., Cremaldi, L., Cunliffe, S., Dash, N., Davier, M., Davis, C. L., De Mori, F., De Nardo, G., Denig, A. G., de Sangro, R., Dey, B., Di Lodovico, F., Dittrich, S., Dole��al, Z., Dorfan, J., Dr��sal, Z., Druzhinin, V. P., Dunwoodie, W., Ebert, M., Echenard, B., Eidelman, S., Eigen, G., Eisner, A. M., Emery, S., Epifanov, D., Ernst, J. A., Faccini, R., Fast, J. E., Feindt, M., Ferrarotto, F., Ferroni, F., Field, R. C., Filippi, A., Finocchiaro, G., Fioravanti, E., Flood, K. T., Forti, F., Fritsch, M., Fulsom, B. G., Gabathuler, E., Gamba, D., Garg, R., Garmash, A., Gary, J. W., Garzia, I., Gaur, V., Gaz, A., Gelb, M., Gershon, T. J., Gioi, L. Li, Giorgi, M. A., Giri, A., Godang, R., Goldenzweig, P., Golob, B., Golubev, V. B., Gorodeisky, R., Gradl, W., Graham, M. T., Grauges, E., Griessinger, K., Gritsan, A. V., Gr��nberg, O., Guido, E., Guttman, N., Hafner, A., Hara, T., Harrison, P. F., Hast, C., Hayasaka, K., Hearty, C., Heck, M., Hedges, M. T., He��, M., Hirose, S., Hitlin, D. G., Honscheid, K., Hou, W. -S., Huard, Z., Van Hulse, C., Hutchcroft, D. E., Inami, K., Inguglia, G., Innes, W. R., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Izen, J. M., Jacobs, W. W., Jawahery, A., Jessop, C. P., Jia, S., Jin, Y., Joo, K. K., Julius, T., Kaliyar, A. B., Kang, K. H., Karyan, G., Kass, R., Kichimi, H., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kim, J., Kim, P., King, G. J., Kinoshita, K., Koch, H., Kody��, P., Kolomensky, Yu. G., Korpar, S., Kotchetkov, D., Kowalewski, R., Kravchenko, E. A., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kuzmin, A., Kwon, Y. -J., Lacker, H. M., Lafferty, G. D., Lanceri, L., Lange, J. S., Lange, D. J., Lankford, A. J., Latham, T. E., Leddig, T., Diberder, F. Le, Lee, I. S., Lee, S. C., Lees, J. P., Leith, D. W. G. S., Li, L. K., Li, Y. B., Li, Y., Libby, J., Liventsev, D., Lockman, W. S., Long, O., LoSecco, J. M., Lou, X. C., Lubej, M., Lueck, T., Luitz, S., Luo, T., Luppi, E., Lusiani, A., Lutz, A. M., MacFarlane, D. B., MacNaughton, J., Mallik, U., Manoni, E., Marchiori, G., Margoni, M., Martellotti, S., Martinez-Vidal, F., Masuda, M., Matsuda, T., Mattison, T. S., Matvienko, D., McKenna, J. A., Meadows, B. T., Merola, M., Miyabayashi, K., Miyashita, T. S., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Muller, D. R., M��ller, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Nayak, M., Neal, H., Neri, N., Nisar, N. K., Nishida, S., Nugent, I. M., Oberhof, B., Ocariz, J., Ogawa, S., Ongmongkolkul, P., Ono, H., Onuchin, A. P., Oyanguren, A., Pakhlov, P., Pakhlova, G., Pal, B., Palano, A., Palombo, F., Vazquez, W. Panduro, Paoloni, E., Pardi, S., Park, H., Passaggio, S., Patrignani, C., Patteri, P., Paul, S., Pavelkin, I., Payne, D. J., Pedlar, T. K., Peimer, D. R., Peruzzi, I. M., Piccolo, M., Piilonen, L. E., Pilloni, A., Piredda, G., Poireau, V., Porter, F. C., Posocco, M., Prell, S., Prepost, R., Puccio, E. M. T., Purohit, M. V., Pushpawela, B. G., Rama, M., Randle-Conde, A., Ratcliff, B. N., Raven, G., Resmi, P. K., Ritchie, J. L., Ritter, M., Rizzo, G., Roberts, D. A., Robertson, S. H., R��hrken, M., Roney, J. M., Roodman, A., Rossi, A., Rotondo, M., Rozanska, M., Russo, G., Sacco, R., Said, S. Al, Sakai, Y., Sandilya, S., Santelj, L., Santoro, V., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schroeder, T., Schubert, K. R., Schwanda, C., Schwartz, A. J., Schwitters, R. F., Sciacca, C., Seddon, R. M., Seino, Y., Sekula, S. J., Senyo, K., Seon, O., Serednyakov, S. I., Sevior, M. E., Shebalin, V., Shibata, T. -A., Shimizu, N., Shiu, J. -G., Simi, G., Simon, F., Simonetto, F., Skovpen, Yu. I., Smith, J. G., Smith, A. J. S., So, R. Y., Sobie, R. J., Soffer, A., Sokoloff, M. D., Solodov, E. P., Solovieva, E., Spanier, S. M., Stari��, M., Stroili, R., Sullivan, M. K., Sumisawa, K., Sumiyoshi, T., Summers, D. J., Sun, L., Takizawa, M., Tamponi, U., Tanida, K., Taras, P., Tasneem, N., Tenchini, F., Tisserand, V., Todyshevx, K. Yu., Touramanis, C., Uchida, M., Uglov, T., Unno, Y., Uno, S., Vahsen, S. E., Varner, G., Vasseur, G., Va'vra, J., ��ervenkov, D., Verderi, M., Vitale, L., Vorobyev, V., Vo��, C., Wagner, S. R., Waheed, E., Waldi, R., Walsh, J. J., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wilson, F. F., Wilson, J. R., Wisniewski, W. J., Won, E., Wormser, G., Wright, D. M., Wu, S. L., Yuan, C. Z., Yusa, Y., Zakharov, S., Zallo, A., Zani, L., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report measurements of $\sin{2��}$ and $\cos{2��}$ from a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} ��^{+} ��^{-}$ decays, where the light unflavored and neutral hadron $h^{0}$ is a $��^{0}$, $��$, or $��$ meson. The analysis is performed with a combination of the final data sets of the \babar\ and Belle experiments containing $471 \times 10^{6}$ and $772 \times 10^{6}$ $B\bar{B}$ pairs collected at the $��\left(4S\right)$ resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. We measure $\sin{2��} = 0.80 \pm 0.14 \,(\rm{stat.}) \pm 0.06 \,(\rm{syst.}) \pm 0.03 \,(\rm{model})$ and $\cos{2��} = 0.91 \pm 0.22 \,(\rm{stat.}) \pm 0.09 \,(\rm{syst.}) \pm 0.07 \,(\rm{model})$. The result for the direct measurement of the angle is $��= \left( 22.5 \pm 4.4 \,(\rm{stat.}) \pm 1.2 \,(\rm{syst.}) \pm 0.6 \,(\rm{model}) \right)^{\circ}$. The last quoted uncertainties are due to the composition of the $D^{0} \to K_{S}^{0} ��^{+} ��^{-}$ decay amplitude model, which is newly established by a Dalitz plot amplitude analysis of a high-statistics $e^{+}e^{-} \to c\bar{c}$ data sample as part of this analysis. We find the first evidence for $\cos2��>0$ at the level of $3.7$ standard deviations. The measurement excludes the trigonometric multifold solution $��/2 - ��= (68.1 \pm 0.7)^{\circ}$ at the level of $7.3$ standard deviations and therefore resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle. The hypothesis of $��= 0^{\circ}$ is ruled out at the level of $5.1$ standard deviations, and thus CP violation is observed in $B^{0} \to D^{(*)} h^{0}$ decays., To be submitted to Physical Review D
Published: 2018
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30. Imaging individual barium atoms in solid xenon for barium tagging in nEXO

Author: Chambers, C., Walton, T., Fairbank, D., Craycraft, A., Yahne, D. R., Todd, J., Iverson, A., Fairbank, W., Alamare, A., Albert, J. B., Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Bourque, F., Brodsky, J. P., Brown, E., Brunner, T., Burenkov, A., Cao, G. F., Cao, L., Cen, W. R., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Cree, W., Côté, M., Dalmasson, J., Daniels, T., Darroch, L., Daugherty, S. J., Daughhetee, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Echevers, J., Fabris, L., Farine, J., Feyzbakhsh, S., Fontaine, R., Fudenberg, D., Giacomini, G., Gornea, R., Gratta, G., Hansen, E. V., Heffner, M., Hoppe, E. W., Hößl, J., House, A., Hufschmidt, P., Hughes, M., Ito, Y., Jamil, A., Jessiman, C., Jewell, M. J., Jiang, X. S., Karelin, A., Kaufman, L. J., Kodroff, D., Koffas, T., Kravitz, S., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Leonard, D. S., Li, G., Li, S., Li, Z., Licciardi, C., Lin, Y. H., Lv, P., MacLellan, R., Michel, T., Mong, B., Moore, D. C., Murray, K., Newby, R. J., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Piepke, A., Pocar, A., Pratte, J. -F., Qiu, D., Radeka, V., Raguzin, E., Rao, T., Rescia, S., Retière, F., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Saldanha, R., Sangiorgio, S., Schmidt, S., Schneider, J., Schubert, A., Sinclair, D., VIII, K. Skarpaas, Soma, A. K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Tarka, M., Tolba, T., Tsang, T. I. Totev. R., Tsang, T., Vachon, F., Veenstra, B., Veeraraghavan, V., Visser, G., Vuilleumier, J. -L., Wagenpfeil, M., Wang, Q., Watkins, J., Weber, M., Wei, W., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Wu, W. H., Xia, Q., Yang, L., Yen, Y. -R., Zeldovich, O., Zhang, X., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Physics::Atomic and Molecular Clusters, FOS: Physical sciences, Physics::Atomic Physics, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: The search for neutrinoless double beta decay probes the fundamental properties of neutrinos, including whether or not the neutrino and antineutrino are distinct. Double beta detectors are large and expensive, so background reduction is essential for extracting the highest sensitivity. The identification, or 'tagging', of the $^{136}$Ba daughter atom from double beta decay of $^{136}$Xe provides a technique for eliminating backgrounds in the nEXO neutrinoless double beta decay experiment. The tagging scheme studied in this work utilizes a cryogenic probe to trap the barium atom in solid xenon, where the barium atom is tagged via fluorescence imaging in the solid xenon matrix. Here we demonstrate imaging and counting of individual atoms of barium in solid xenon by scanning a focused laser across a solid xenon matrix deposited on a sapphire window. When the laser sits on an individual atom, the fluorescence persists for $\sim$30~s before dropping abruptly to the background level, a clear confirmation of one-atom imaging. No barium fluorescence persists following evaporation of a barium deposit to a limit of $\leq$0.16\%. This is the first time that single atoms have been imaged in solid noble element. It establishes the basic principle of a barium tagging technique for nEXO.
Published: 2018
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31. Inclusive study of bottomonium production in association with an $��$ meson in $e^+e^-$ annihilations near $��(5S)$

Author: Belle Collaboration, Tamponi, U., Guido, E., Mussa, R., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Barberio, E., Behera, P., Berger, M., Bhardwaj, V., Bhuyan, B., Biswal, J., Bondar, A., Bozek, A., Bra��ko, M., Browder, T. E., ��ervenkov, D., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Cinabro, D., Cunliffe, S., Czank, T., Dash, N., Di Carlo, S., Dole��al, Z., Dr��sal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Goldenzweig, P., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W. -S., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jaegle, I., Jeon, H. B., Jin, Y., Joo, K. K., Julius, T., Kang, K. H., Kawasaki, T., Kichimi, H., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kwon, Y. -J., Lee, I. S., Lee, S. C., Li, L. K., Li, Y., Gioi, L. Li, Libby, J., Liventsev, D., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Okuno, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shimizu, N., Shiu, J. -G., Shwartz, B., Sokolov, A., Solovieva, E., Stari��, M., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Van Hulse, C., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Widmann, E., Won, E., Ye, H., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics::Experiment
Abstract: We study bottomonium production in association with an $��$ meson in $e^+e^-$ annihilations near the $��(5S)$, at a center of mass energy of $\sqrt{s}=10.866\,$GeV. The results are based on the $121.4\,$fb$^{-1}$ data sample collected by the Belle experiment at the asymmetric energy KEKB collider. Only the $��$ meson is reconstructed and the missing-mass spectrum of $��$ candidates is investigated. We observe the $e^+e^-\to��_J(1D)$ process and find evidence for the $e^+e^-\to��(2S)$ process, while no significant signals of $��(1S)$, $h_b(1P)$, nor $h_b(2P)$ are found. Cross sections for the studied processes are reported., Submitted to EPJ-C
Published: 2018
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32. nEXO Pre-Conceptual Design Report

Author: nEXO Collaboration, Kharusi, S. Al, Alamre, A., Albert, J. B., Alfaris, M., Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Bourque, F., Brodsky, J. P., Brown, E., Brunner, T., Burenkov, A., Cao, G. F., Cao, L., Cen, W. R., Chambers, C., Charlebois, S. A., Chiu, M., Cleveland, B., Conley, R., Coon, M., Côté, M., Craycraft, A., Cree, W., Dalmasson, J., Daniels, T., Danovitch, D., Darroch, L., Daugherty, S. J., Daughhetee, J., DeVoe, R., Delaquis, S., Der Mesrobian-Kabakian, A., Di Vacri, M. L., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Echevers, J., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Ferrara, S., Feyzbakhsh, S., Fierlinger, P., Fontaine, R., Fudenberg, D., Gallina, G., Giacomini, G., Gornea, R., Gratta, G., Haller, G., Hansen, E. V., Harris, D., Hasi, J., Heffner, M., Hoppe, E. W., Hößl, J., House, A., Hufschmidt, P., Hughes, M., Ito, Y., Iverson, A., Jamil, A., Jessiman, C., Jewell, M. J., Jiang, X. S., Karelin, A., Kaufman, L. J., Kenney, C., Killick, R., Kodroff, D., Koffas, T., Kravitz, S., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Lenardo, B. G., Leonard, D. S., Lewis, C. M., Li, G., Li, S., Li, Z., Licciardi, C., Lin, Y. H., Lv, P., MacLellan, R., McFarlane, K., Michel, T., Mong, B., Moore, D. C., Murray, K., Newby, R. J., Nguyen, T., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Patel, M., Peña-Perez, A., Piepke, A., Pocar, A., Pratte, J. -F., Qiu, D., Radeka, V., Raguzin, E., Rao, T., Rescia, S., Retière, F., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Runge, J., Saldanha, R., Sangiorgio, S., Schmidt, S., Schneider, J., Schubert, A., Segal, J., Skarpaas~VIII, K., Soma, A. K., Spitaels, K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Tarka, M., Todd, J., Tolba, T., Totev, T. I., Tsang, R., Tsang, T., Vachon, F., Veenstra, B., Veeraraghavan, V., Visser, G., Vogel, P., Vuilleumier, J. -L., Wagenpfeil, M., Wang, Q., Ward, M., Watkins, J., Weber, M., Wei, W., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Wu, W. H., Xia, Q., Yang, L., Yen, Y. -R., Zeldovich, O., Zhang, X., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: The projected performance and detector configuration of nEXO are described in this pre-Conceptual Design Report (pCDR). nEXO is a tonne-scale neutrinoless double beta ($0\nu\beta\beta$) decay search in $^{136}$Xe, based on the ultra-low background liquid xenon technology validated by EXO-200. With $\simeq$ 5000 kg of xenon enriched to 90% in the isotope 136, nEXO has a projected half-life sensitivity of approximately $10^{28}$ years. This represents an improvement in sensitivity of about two orders of magnitude with respect to current results. Based on the experience gained from EXO-200 and the effectiveness of xenon purification techniques, we expect the background to be dominated by external sources of radiation. The sensitivity increase is, therefore, entirely derived from the increase of active mass in a monolithic and homogeneous detector, along with some technical advances perfected in the course of a dedicated R&D program. Hence the risk which is inherent to the construction of a large, ultra-low background detector is reduced, as the intrinsic radioactive contamination requirements are generally not beyond those demonstrated with the present generation $0\nu\beta\beta$ decay experiments. Indeed, most of the required materials have been already assayed or reasonable estimates of their properties are at hand. The details described herein represent the base design of the detector configuration as of early 2018. Where potential design improvements are possible, alternatives are discussed. This design for nEXO presents a compelling path towards a next generation search for $0\nu\beta\beta$, with a substantial possibility to discover physics beyond the Standard Model., Comment: 182 pages, minor revisions
Published: 2018
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33. Measurement of the Decays $��_c\to ��$ at Belle

Author: Belle Collaboration, Berger, M., Schwanda, C., Suzuki, K., Adachi, I., Ahn, J. K., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bonvicini, G., Bozek, A., Bra��ko, M., Browder, T. E., ��ervenkov, D., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Cinabro, D., Czank, T., Dash, N., Di Carlo, S., Dole��al, Z., Dutta, D., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Grzymkowska, O., Guan, Y., Guido, E., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jia, S., Jin, Y., Joo, K. K., Julius, T., Kaliyar, A. B., Kang, K. H., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kuzmin, A., Kwon, Y. -J., Lee, I. S., Lee, S. C., Li, L. K., Li, Y., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Mussa, R., Nakano, T., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Okuno, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Park, H., Paul, S., Pavelkin, I., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwartz, A. J., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shimizu, N., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stari��, M., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Widmann, E., Won, E., Ye, H., Yelton, J., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report measurements of the branching fractions of the decays $��^+_c\to��^+��^-��^+$, $��^+_c\to��^0��^+��^0$ and $��^+_c\to��^+��^0��^0$ relative to the reference channel $��^+_c\to pK^-��^+$. The analysis is based on the full data sample collected at and close to $��(4S)$ resonance by the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider corresponding to the integrated luminosity of 711 fb$^{-1}$. We measure ${\cal B}(��^+_c\rightarrow��^+��^-��^+)/{\cal B}(��^+_c\to pK^-��^+) = 0.706~\pm 0.003~\pm 0.029$, ${\cal B}(��^+_c\rightarrow��^0��^+��^0)/{\cal B}(��^+_c\to pK^-��^+) = 0.491~\pm 0.005~\pm 0.028$ and ${\cal B}(��^+_c\rightarrow��^+��^0��^0)/{\cal B}(��^+_c\to pK^-��^+) = 0.198~\pm 0.006~\pm 0.016$. The listed uncertainties are statistical and systematic, respectively., Submitted to PRD
Published: 2018
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34. Study of charmless decays $B^{\pm} \to K^{0}_{S} K^{0}_{S} h^{\pm}$ ($h=K,��$) at Belle

Author: The Belle Collaboration, Abdesselam, A., Adachi, I., Adamczyk, K., Ahn, J. K., Aihara, H., Said, S. Al, Arinstein, K., Arita, Y., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Aziz, T., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Ban, Y., Bansal, V., Barberio, E., Barrett, M., Bartel, W., Behera, P., Beleno, C., Belous, K., Berger, M., Bernlochner, F., Besson, D., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bloomfield, T., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bracko, M., Braun, N., Breibeck, F., Brodzicka, J., Browder, T. E., Cao, L., Caria, G., Cervenkov, D., Chang, M. -C., Chang, P., Chao, Y., Chekelian, V., Chen, A., Chen, K. -F., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Crnkovic, J., Cunliffe, S., Czank, T., Danilov, M., Dash, N., Di Carlo, S., Dingfelder, J., Dolezal, Z., Dong, T. V., Dossett, D., Drasal, Z., Drutskoy, A., Dubey, S., Dutta, D., Eidelman, S., Epifanov, D., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Frost, O., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Gemmler, J., Getzkow, D., Giordano, F., Giri, A., Glattauer, R., Goh, Y. M., Goldenzweig, P., Golob, B., Greenwald, D., Perdekamp, M. Grosse, Grygier, J., Grzymkowska, O., Guan, Y., Guido, E., Guo, H., Haba, J., Hamer, 18 P., Hara, K., Hara, T., Hasegawa, Y., Hasenbusch, J., Hayasaka, K., Hayashii, H., He, X. H., Heck, M., Hedges, M. T., Heffernan, D., Heider, M., Heller, A., Higuchi, T., Hirose, S., Horiguchi, T., Hoshi, Y., Hoshina, K., Hou, W. -S., Hsiung, Y. B., Hsu, C. -L., Huang, K., Huschle, M., Igarashi, Y., Iijima, T., Imamura, M., Inami, K., Inguglia, G., Ishikawa, A., Itagaki, K., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jacobs, W. W., Jaegle, I., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Jones, M., Joo, K. K., Julius, T., Kahn, J., Kakuno, H., Kaliyar, A. B., Kang, J. H., Kang, K. H., Kapusta, P., Karyan, G., Kataoka, S. U., Kato, E., Kato, Y., Katrenko, P., Kawai, H., Kawasaki, T., Keck, T., Kichimi, H., Kiesling, C., Kim, B. H., Kim, D. Y., Kim, H. J., Kim, H. -J., Kim, J. B., Kim, K. T., Kim, S. H., Kim, S. K., Kim, Y. J., Kimmel, T., Kindo, H., Kinoshita, K., Kleinwort, C., Klucar, J., Kobayashi, N., Kodys, P., Koga, Y., Konno, T., Korpar, S., Kotchetkov, D., Kouzes, R. T., Krizan, P., Kroeger, R., Krohn, J. -F., Krokovny, P., Kronenbitter, B., Kuhr, T., Kulasiri, R., Kumar, R., Kumita, T., Kurihara, E., Kuroki, Y., Kuzmin, A., Kvasnicka, P., Kwon, Y. -J., Lai, Y. -T., Lange, J. S., Lee, I. S., Lee, S. C., Leitgab, M., Leitner, R., Levit, D., Lewis, P., Li, C. H., Li, H., Li, L. K., Li, Y., Li, Y. B., Gioi, L. Li, Libby, J., Limosani, A., Liptak, Z., Liu, C., Liu, Y., Liventsev, D., Loos, A., Louvot, R., Lu, P. -C., Lubej, M., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., Matyja, A., McNeil, J. T., Merola, M., Metzner, F., Mikami, Y., Miyabayashi, K., Miyachi, Y., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, H. K., Mori, T., Morii, T., Moser, H. -G., Mrvar, M., Muller, T., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakahama, Y., Nakamura, I., Nakamura, K. R., Nakano, E., Nakano, H., Nakano, T., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Neichi, K., Ng, C., Niebuhr, C., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, A., Ogawa, K., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Ono, H., Ono, Y., Onuki, Y., Ostrowicz, W., Oswald, C., Ozaki, H., Pakhlov, P., Pakhlova, G., Pal, B., Palka, H., Panzenbock, E., Pardi, S., Park, C. -S., Park, C. W., Park, H., Park, K. S., Paul, S., Pavelkin, I., Pedlar, T. K., Peng, T., Pesantez, L., Pestotnik, R., Peters, M., Piilonen, L. E., Poluektov, A., Popov, V., Prasanth, K., Prencipe, E., Prim, M., Prothmann, K., Purohit, M. V., Rabusov, A., Rauch, J., Reisert, B., Resmi, P. K., Ribezl, E., Ritter, M., Rorie, J., Rostomyan, A., Rozanska, M., Rummel, S., Russo, G., Sahoo, D., Sahoo, H., Saito, T., Sakai, Y., Salehi, M., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sasaki, J., Sasao, N., Sato, Y., Savinov, V., Schluter, T., Schneider, O., Schnell, G., Schonmeier, P., Schram, M., Schueler, J., Schwanda, C., Schwartz, A. J., Schwenker, B., Seidl, R., Seino, Y., Semmler, D., Senyo, K., Seon, O., Seong, I. S., Sevior, M. E., Shang, L., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T. -A., Shibuya, H., Shinomiya, S., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Sinha, R., Sokolov, A., Soloviev, Y., Solovieva, E., Stanic, S., Staric, M., Steder, M., Stottler, Z., Strube, J. F., Stypula, J., Sugihara, S., Sugiyama, A., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Suzuki, K., Suzuki, S., Suzuki, S. Y., Suzuki, Z., Takeichi, H., Takizawa, M., Tamponi, U., Tanaka, M., Tanaka, S., Tanida, K., Taniguchi, N., Tao, Y., Taylor, G. N., Tenchini, F., Teramoto, Y., Tikhomirov, I., Trabelsi, K., Tsuboyama, T., Uchida, M., Uchida, T., Ueda, I., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Vahsen, S. E., Van Tonder, R., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vervink, K., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M. N., Waheed, E., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Watanuki, S., Wedd, R., Wehle, S., Widmann, E., Wiechczynski, J., Williams, K. M., Won, E., Yabsley, B. D., Yamada, S., Yamamoto, H., Yamashita, Y., Yashchenko, S., Ye, H., Yelton, J., Yin, J. H., Yook, Y., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, C. C., Zhang, L. M., Zhang, Z. P., Zhao, L., Zhilich, V., Zhukova, V., Zhulanov, V., Zivko, T., Zupanc, A., and Zwahlen, N.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report a search for charmless hadronic decays of charged $B$ mesons to the final states $K^{0}_{S} K^{0}_{S} K^{\pm}$ and $K^{0}_{S} K^{0}_{S} ��^{\pm}$ . The results are based on a $711 {fb}^{-1}$ data sample that contains $772 \times 10^6$ $B \bar{B}$ pairs, and was collected at the $��(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. For $B^{\pm} \to K^{0}_{S} K^{0}_{S} K^{\pm}$ decays, the measured branching fraction and direct $CP$ asymmetry are $[10.64\pm0.49(stat)\pm 0.44(syst)]\times10^{-6}$ and [$-0.6\pm3.9(stat)\pm 3.4(syst)$] %, respectively. In the absence of a statistically significant signal for $B^{\pm}\to K^{0}_{S} K^{0}_{S} ��^{\pm}$, we set the 90 % confidence-level upper limit on its branching fraction at $1.14 \times 10^{-6}$.
Published: 2018
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35. First measurements of absolute branching fractions of $��_c^0$ at Belle

Author: Belle Collaboration, Li, Y. B., Shen, C. P., Yuan, C. Z., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aushev, T., Ayad, R., Badhrees, I., Bansal, V., Bele��o, C., Berger, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bondar, A., Bozek, A., Bra��ko, M., Cao, L., ��ervenkov, D., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., Di Carlo, S., Dole��al, Z., Dong, T. V., Dr��sal, Z., Eidelman, S., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Greenwald, D., Grube, B., Hayasaka, K., Hayashii, H., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Karyan, G., Kawasaki, T., Kichimi, H., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, J. Y., Lee, S. C., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., MacNaughton, J., Masuda, M., Matsuda, T., Merola, M., Miyata, H., Mizuk, R., Mohanty, G. B., Mussa, R., Nakano, E., Nakao, M., Nath, K. J., Nayak, M., Niiyama, M., Nishida, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, S. -H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Solovieva, E., Stari��, M., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tao, Y., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Van Tonder, R., Varner, G., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences
Abstract: We present the first measurements of absolute branching fractions of $��_c^0$ decays into $��^- ��^+$, $��K^- ��^+$, and $p K^- K^- ��^+$ final states. The measurements are made using a data set comprising $(772\pm 11)\times 10^{6}$ $B\bar{B}$ pairs collected at the $��(4S)$ resonance with the Belle detector at the KEKB $e^+e^-$ collider. We first measure the absolute branching fraction for $B^- \to \bar��_c^- ��_c^0$ using a missing-mass technique; the result is ${\cal B}(B^- \to \bar��_c^- ��_c^0) = (9.51 \pm 2.10 \pm 0.88) \times 10^{-4}$. We subsequently measure the product branching fractions ${\cal B}(B^- \to \bar��_c^- ��_c^0){\cal B}(��_c^0 \to ��^- ��^+)$, ${\cal B}( B^- \to \bar��_c^- ��_c^0) {\cal B}(��_c^0 \to ��K^- ��^+)$, and ${\cal B}( B^- \to \bar��_c^- ��_c^0) {\cal B}(��_c^0 \to p K^- K^- ��^+)$ with improved precision. Dividing these product branching fractions by the result for $B^- \to \bar��_c^- ��_c^0$ yields the following branching fractions: ${\cal B}(��_c^0 \to ��^- ��^+)= (1.80 \pm 0.50 \pm 0.14)\%$, ${\cal B}(��_c^0 \to ��K^- ��^+)=(1.17 \pm 0.37 \pm 0.09)\%$, and ${\cal B}(��_c^0 \to p K^- K^- ��^+)=(0.58 \pm 0.23 \pm 0.05)\%.$ For the above branching fractions, the first uncertainties are statistical and the second are systematic. Our result for ${\cal B}(��_c^0 \to ��^- ��^+)$ can be combined with $��_c^0$ branching fractions measured relative to $��_c^0 \to ��^- ��^+$ to yield other absolute $��_c^0$ branching fractions., 7 pages, 3 figures, 1 table; accepted for publication as a Letter in Physical Review Letters
Published: 2018
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36. Measurements of isospin asymmetry and difference of direct $CP$ asymmetries in inclusive $B \to X_s ��$ decays

Author: Watanuki, S., Ishikawa, A., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Behera, P., Belen, C., Berger, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bra��, M., Browder, T. E., Cao, L., C, D., Chang, P., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Di Carlo, S., Dingfelder, J., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Frey, A., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Guan, Y., Guido, E., Haba, J., Hayasaka, K., Hayashii, H., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Jia, S., Jin, Y., Joo, K. K., Julius, T., Karyan, G., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Nakao, M., Nanut, T., Nath, K. J., Niiyama, M., Nishida, S., Nishimura, K., Ogawa, K., Ogawa, S., Okuno, S., Ono, H., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Pal, B., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Prencipe, E., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Sandilya, S., Santelj, L., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Seon, O., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sokolov, A., Solovieva, E., Stani��, S., Stari��, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Taniguchi, N., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Vahsen, S. E., Van Hulse, C., Van Tonder, R., Varner, G., Varvell, K. E., Vossen, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Widmann, E., Won, E., Ye, H., Yin, J. H., Yusa, Y., Zakharov, S., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences
Abstract: We report measurements of isospin asymmetry $��_{0-}$ and difference of direct $CP$ asymmetries $��A_{CP}$ between charged and neutral $B \to X_s ��$ decays. This analysis is based on the data sample containing $772 \times 10^6 B\bar{B}$ pairs that was collected with the Belle detector at the KEKB energy-asymmetric $e^+ e^-$ collider. Using a sum-of-exclusive technique with invariant $X_s$ mass up to 2.8~GeV/$c^2$, we obtain $��_{0-} = \bigl[-0.48 \pm 1.49 {\rm (stat.)} \pm 0.97 {\rm (syst.)} \pm 1.15 {(f_{+-}/f_{00})}\bigr]$\% and $��A_{CP} = \bigl[+3.69 \pm 2.65 {\rm (stat.)} \pm 0.76{\rm (syst.)}\bigr]$\%, where the last uncertainty for $��_{0-}$ is due to the uncertainty on the production ratio of $B^+B^-$ to $B^0\bar{B}^0$ in $��(4S)$ decays. The measured value of $��_{0-}$ is consistent with zero, allowing us to constrain the resolved photon contribution in the $B \to X_s ��$, and improve the branching fraction prediction. The result for $��A_{CP}$ is consistent with the prediction of the SM. We also measure the direct $CP$ asymmetries for charged and neutral $B \to X_s ��$ decays. All the measurements are the most precise to date., 20 pages, 10 figures, submitted to PRD
Published: 2018
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37. Search for $��(1S,2S) \to Z^{+}_{c}Z^{(\prime) -}_{c}$ and $e^{+}e^{-} \to Z^{+}_{c}Z^{(\prime) -}_{c}$ at $\sqrt{s}$ = 10.52, 10.58, and 10.867 GeV

Author: Belle Collaboration, Jia, S., Shen, C. P., Yuan, C. Z., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Bele��o, C., Bhuyan, B., Bilka, T., Biswal, J., Bozek, A., Bra��ko, M., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dole��al, Z., Eidelman, S., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Guido, E., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Hirose, S., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Jin, Y., Julius, T., Karyan, G., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumita, T., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Moon, H. K., Mussa, R., Nakano, E., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nishida, S., Ogawa, S., Okuno, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Ritter, M., Rostomyan, A., Russo, G., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stani��, S., Stari��, M., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Widmann, E., Won, E., Ye, H., Zakharov, S., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences
Abstract: The first search for $Z_{c}$ pair production in $��(1S)$ and $��(2S)$ decays and in $e^{+}e^{-}$ annihilation at $\sqrt{s}$ = 10.52, 10.58, and 10.867 GeV is conducted using data collected with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant signals are observed in any of the studied modes, and the 90\% credibility level upper limits on their product branching fractions in $��(1S)$ and $��(2S)$ decays (${\cal B}(��(1S,2S)\to Z^{+}_{c}Z^{(\prime) -}_{c})\times{\cal B}(Z^{+}_{c}\to��^{+}+c\bar c)$ ($c\bar c=J/��$, $��_{c1}(1P)$, $��(2S)$)) and the product of Born cross section and branching fraction for $e^{+}e^{-} \to Z^{+}_{c}Z^{(\prime) -}_{c}$ ($��(e^+e^- \to Z^{+}_{c}Z^{(\prime) -}_{c})\times {\cal B}(Z^{+}_{c} \to ��^+ +c\bar c)$) at $\sqrt{s}$ = 10.52, 10.58, and 10.867 GeV are determined. Here, $Z_{c}$ refers to the $Z_{c}(3900)$ and $Z_{c}(4200)$ observed in the $��J/��$ final state, the $Z_{c1}(4050)$ and $Z_{c2}(4250)$ in the $��_{c1}(1P)$ state, and the $Z_{c}(4050)$ and $Z_{c}(4430)$ in the $��(2S)$ state., 16 pages, 10 figures, 6 tables
Published: 2018
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38. Search for $CP$ violation with kinematic asymmetries in the $D^0 \to K^+ K^- ��^+ ��^-$ decay

Author: Belle Collaboration, Kim, J. B., Won, E., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Bansal, V., Behera, P., Bele��o, C., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bra��ko, M., Cao, L., ��ervenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dole��al, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Greenwald, D., Guan, Y., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jia, S., Jin, Y., Joffe, D., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kuzmin, A., Kwon, Y. -J., Lai, Y. -T., Lalwani, K., Lange, J. S., Lee, I. S., Lee, J. K., Lee, J. Y., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liptak, Z., Liventsev, D., Lu, P. -C., Lubej, M., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Mrvar, M., Mussa, R., Nakano, E., Nakao, M., Nath, K. J., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Pakhlova, G., Pal, B., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prasanth, K., Prencipe, E., Rabusov, A., Resmi, P. K., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Solovieva, E., Stari��, M., Strube, J. F., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tao, Y., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Van Tonder, R., Varner, G., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Widmann, E., Yamamoto, H., Yang, S. B., Ye, H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment
Abstract: We search for $CP$ violation in the singly-Cabibbo-suppressed decay $D^{0}\rightarrow K^{+}K^{-}��^{+}��^{-}$ using data corresponding to an integrated luminosity of $988\text{ }{\rm fb}^{-1}$ collected by the Belle detector at the KEKB $e^{+}e^{-}$ collider. We measure a set of five kinematically dependent $CP$ asymmetries, of which four asymmetries are measured for the first time. The set of asymmetry measurements can be sensitive to $CP$ violation via interference between the different partial-wave contributions to the decay and performed on other pseudoscalar decays. We find no evidence of $CP$ violation., 7 pages, 3 figures, 3 tables
Published: 2018
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39. Search for the lepton-flavor-violating decay $B^{0}\to K^{\ast 0} ��^{\pm} e^{\mp}$

Author: Belle Collaboration, Sandilya, S., Trabelsi, K., Schwartz, A. J., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Bansal, V., Behera, P., Bele��o, C., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bra��ko, M., Browder, T. E., Cao, L., ��ervenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dingfelder, J., Dole��al, Z., Dong, T. V., Dr��sal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Golob, B., Greenwald, D., Guan, Y., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hirose, S., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kaliyar, A. B., Kang, K. H., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prasanth, K., Prencipe, E., Purohit, M. V., Rabusov, A., Resmi, P. K., Rostomyan, A., Russo, G., Sahoo, D., Sakai, Y., Salehi, M., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Singh, J. B., Sokolov, A., Solovieva, E., Stari��, M., Strube, J. F., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Van Hulse, C., Van Tonder, R., Varner, G., Vinokurova, A., Vorobyev, V., Waheed, E., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanuki, S., Wehle, S., Widmann, E., Won, E., Yamamoto, H., Ye, H., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We have searched for the lepton-flavor-violating decay $B^{0}\to K^{\ast 0} ��^{\pm} e^{\mp}$ using a data sample of 711 $fb^{-1}$ that contains $772 \times 10^{6}$ $B\bar{B}$ pairs. The data were collected near the $��(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. No signals were observed, and we set 90% confidence level upper limits on the branching fractions of ${\cal B}(B^{0}\to K^{\ast 0} ��^{+} e^{-})< 1.2\times 10^{-7}$, ${\cal B}(B^{0}\to K^{\ast 0} ��^{-} e^{+})< 1.6\times 10^{-7}$, and, for both decays combined, ${\cal B}(B^{0}\to K^{\ast 0} ��^{\pm} e^{\mp}) < 1.8\times 10^{-7}$. These are the most stringent limits on these decays to date., to appear in PRD(RC)
Published: 2018
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40. Measurements of branching fraction and direct $C\!P$ asymmetry in $B^{\pm}\to K^{0}_{S}K^{0}_{S}K^{\pm}$ and a search for $B^{\pm}\to K^{0}_{S}K^{0}_{S}��^{\pm}$

Author: The Belle Collaboration, Kaliyar, A. B., Behera, P., Mohanty, G. B., Gaur, V., Adachi, I., Ahn, J. K., Aihara, H., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Bansal, V., Beleno, C., Bhardwaj, V., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bracko, M., Cao, L., Cervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dingfelder, J., Dolezal, Z., Dong, T. V., Drasal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Frey, A., Fulsom, B. G., Garg, R., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Golob, B., Greenwald, D., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Joffe, D., Joo, K. K., Kahn, J., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, H. J., Kim, S. H., Kimmel, T. D., Kinoshita, K., Kodys, P., Korpar, S., Kotchetkov, D., Krizan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lee, I. S., Lee, J. K., Lee, J. Y., Lee, S. C., Levit, D., Li, C. H., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Luo, T., MacNaughton, J., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, S., Mori, T., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, K., Ogawa, S., Ono, H., Onuki, Y., Ostrowicz, W., Pakhlova, G., Pal, B., Pardi, S., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prasanth, K., Prencipe, E., Rabusov, A., Resmi, P. K., Ritter, M., Rostomyan, A., Russo, G., Sahoo, D., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Solovieva, E., Staric, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tao, Y., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Varvell, K. E., Vossen, A., Waheed, E., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We study charmless hadronic decays of charged $B$ mesons to the final states $K^{0}_{S}K^{0}_{S}K^{\pm}$ and $K^{0}_{S}K^{0}_{S}��^{\pm}$ using a $711 fb^{-1}$ data sample that contains $772\times 10^6$ $B\bar{B}$ pairs, and was collected at the $��(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. For $B^{\pm}\to K^{0}_{S}K^{0}_{S}K^{\pm}$, the measured branching fraction and direct $CP$ asymmetry are $[10.42\pm0.43(stat)\pm 0.22(syst)]\times10^{-6}$ and [$+1.6\pm3.9(stat)\pm 0.9(syst)$]%, respectively. In the absence of a statistically significant signal for $B^{\pm}\to K^{0}_{S}K^{0}_{S}��^{\pm}$, we obtain a 90% confidence-level upper limit on its branching fraction as $8.7 \times10^{-7}$.
Published: 2018
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41. Observation of $��(4S)\to ��' ��(1S)$

Author: Belle Collaboration, Guido, E., Mussa, R., Tamponi, U., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Behera, P., Berger, M., Bhardwaj, V., Biswal, J., Bondar, A., Bonvicini, G., Bozek, A., Bra��ko, M., Browder, T. E., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Di Carlo, S., Dole��al, Z., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Haba, J., Hara, T., Hayashii, H., Hedges, M. T., Hou, W. -S., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Julius, T., Kang, K. H., Karyan, G., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Nayak, M., Niiyama, M., Nishida, S., Ogawa, S., Ono, H., Ostrowicz, W., Pakhlova, G., Pal, B., Pardi, S., Park, C. W., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sanuki, T., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sokolov, A., Stari��, M., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Usov, Y., Van Hulse, C., Varner, G., Vinokurova, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Widmann, E., Won, E., Ye, H., Yelton, J., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment
Abstract: We report the first observation of the hadronic transition $��(4S)\to��'��(1S)$, using 496 fb$^{-1}$ data collected at the $��(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. We reconstruct the $��'$ meson through its decays to $��^0��$ and to $��^+��^-��$, with $��\to��$. We measure: ${\cal B}(��(4S)\to��'��(1S))=(3.43\pm 0.88 {\rm(stat.)} \pm 0.21 {\rm(syst.)})\times10^{-5}$, with a significance of 5.7$��$., 6 pages, 4 figures. Submitted to PRL
Published: 2018
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42. Measurement of the CKM Matrix Element $|V_{cb}|$ from $B^{0} \to D^{*-} \ell^+ ��_\ell$ at Belle

Author: Waheed, E., Urquijo, P., Adachi, I., Adamczyk, K., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Beleno, C., Bernlochner, F., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bracko, M., Browder, T. E., Campajola, M., Cervenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Di Carlo, S., Dolezal, Z., Dong, T. V., Dossett, D., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Kahn, J., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kim, C. H., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kodys, P., Korpar, S., Kotchetkov, D., Krizan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, J. Y., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., Masuda, M., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakamura, I., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Park, S. -H., Paul, S., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Prim, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stanic, S., Staric, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Varner, G., Varvell, K. E., Vinokurova, A., Vossen, A., Wang, C. H., Wang, M. -Z., Wang, P., Won, E., Yang, S. B., Ye, H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We present a new measurement of the CKM matrix element $|V_{cb}|$ from $B^{0} \to D^{*-} \ell^+ ��_\ell$ decays, reconstructed with the full Belle data set of $711 \, \rm fb^{-1}$ integrated luminosity. Two form factor parameterizations, originally conceived by the Caprini-Lellouch-Neubert (CLN) and the Boyd, Grinstein and Lebed (BGL) groups, are used to extract the product $\mathcal{F}(1)��_{\rm EW}|V_{cb}|$ and the decay form factors, where $\mathcal{F}(1)$ is the normalization factor and $��_{\rm EW}$ is a small electroweak correction. In the CLN parameterization we find $\mathcal{F}(1)��_{\rm EW}|V_{cb}| = (35.06 \pm 0.15 \pm 0.56) \times 10^{-3}$, $��^{2}=1.106 \pm 0.031 \pm 0.007$, $R_{1}(1)=1.229 \pm 0.028 \pm 0.009$, $R_{2}(1)=0.852 \pm 0.021 \pm 0.006$. For the BGL parameterization we obtain $\mathcal{F}(1)��_{\rm EW}|V_{cb}|= (34.93 \pm 0.23 \pm 0.59)\times 10^{-3}$, which is consistent with the World Average when correcting for $\mathcal{F}(1)��_{\rm EW}$. The branching fraction of $B^{0} \to D^{*-} \ell^+ ��_\ell$ is measured to be $\mathcal{B}(B^{0}\rightarrow D^{*-}\ell^{+}��_{\ell}) = (4.90 \pm 0.02 \pm 0.16)\%$. We also present a new test of lepton flavor universality violation in semileptonic $B$ decays, $\frac{{\cal B }(B^0 \to D^{*-} e^+ ��)}{{\cal B }(B^0 \to D^{*-} ��^+ ��)} = 1.01 \pm 0.01 \pm 0.03~$. The errors correspond to the statistical and systematic uncertainties respectively. This is the most precise measurement of $\mathcal{F}(1)��_{\rm EW}|V_{cb}|$ and form factors to date and the first experimental study of the BGL form factor parameterization in an experimental measurement.
Published: 2018
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43. Observation of $��(2S)\to��_{b}(1S)$ decay

Author: Belle Collaboration, Fulsom, B. G., Pedlar, T. K., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Behera, P., Bele��o, C., Berger, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bondar, A., Bonvicini, G., Bozek, A., Bra��ko, M., Browder, T. E., Cao, L., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dingfelder, J., Dole��al, Z., Dong, T. V., Dr��sal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Guido, E., Haba, J., Hayasaka, K., Hayashii, H., Hirose, S., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Mussa, R., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Paul, S., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Rabusov, A., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Singh, J. B., Sokolov, A., Solovieva, E., Stari��, M., Strube, J. F., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Van Hulse, C., Van Tonder, R., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, B., Wang, C. H., Wang, P., Wang, X. L., Watanabe, M., Watanuki, S., Widmann, E., Won, E., Ye, H., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhukova, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report the observation of $��(2S)\to��_{b}(1S)$ decay based on analysis of the inclusive photon spectrum of $24.7$ fb$^{-1}$ of $e^+ e^-$ collisions at the $��(2S)$ center-of-mass energy collected with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We measure a branching fraction of $\mathcal{B}(��(2S)\to��_{b}(1S))=(6.1^{+0.6+0.9}_{-0.7-0.6})\times 10^{-4}$, and derive an $��_{b}(1S)$ mass of $9394.8^{+2.7+4.5}_{-3.1-2.7}$ MeV/$c^{2}$, where the uncertainties are statistical and systematic, respectively. The significance of our measurement is greater than 7 standard deviations, constituting the first observation of this decay mode.
Published: 2018
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44. Observation of $B^{+} \rightarrow p\bar�� K^+ K^-$ and $B^{+} \rightarrow \bar{p}��K^+ K^+$

Author: Lu, P. -C., Wang, M. -Z., Chistov, R., Chang, P., Adachi, I., Ahn, J. K., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Bansal, V., Behera, P., Beleno, C., Berger, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bonvicini, G., Bozek, A., Bra��ko, M., Browder, T. E., Cao, L., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dole��al, Z., Dong, T. V., Dr��sal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Guido, E., Haba, J., Hayasaka, K., Hayashii, H., Hirose, S., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kaliyar, A. B., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kuzmin, A., Kwon, Y. -J., Lai, Y. -T., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Mussa, R., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Ono, H., Ozaki, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Rabusov, A., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Singh, J. B., Sokolov, A., Solovieva, E., Stari��, M., Strube, J. F., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Van Tonder, R., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, B., Wang, C. H., Watanabe, M., Watanuki, S., Widmann, E., Won, E., Ye, H., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report the study of \OK \ and \SK \ using a $772 \times 10^6$ $B\bar{B}$ pair data sample recorded on the $��({\rm 4S})$ resonance with the Belle detector at KEKB. The following branching fractions are measured: $\mathcal{B}$(\OKPHSP) $=$ $(4.22^{+0.45}_{-0.44}\pm 0.51)\times10^{-6}$, $\mathcal{B}$(\SKPHSP) $=$ $(3.81^{+0.39}_{-0.37} \pm 0.45)\times 10^{-6}$, $\mathcal{B}$(\ETACD+c.c.) $=$ $(2.91^{+0.37}_{-0.35}\pm 0.36)\times 10^{-3}$ and $\mathcal{B}$(\PLPHI) $=$ $(8.18 \pm 2.15 \pm 0.79)\times10^{-7}$, where c.c. denotes the corresponding charge-conjugation process. The intermediate resonance decays are excluded in the four-body decay measurements. We also found evidences for $\mathcal{B}$(\ETACS+c.c.) $=$ $(3.59 \pm 1.52 \pm 0.47) \times 10^{-3}$ and $\mathcal{B}$(\LLKO) $=$ $(2.30 \pm 0.65 \pm 0.25) \times 10^{-6}$. No significant signals are found for \JPSIS+c.c. and \LLKS \ ; we set the 90\% confidence level upper limits on their decay branching fractions as $< 1.85\times10^{-3}$ and $< 2.14\times10^{-6}$, respectively., 20 pages, 7 figures, 3 tables Submitted to Phys. Rev. D
Published: 2018
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45. Observation of an excited $��^-$ baryon

Author: Yelton, J., Adachi, I., Ahn, J. K., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Bansal, V., Bele��o, C., Berger, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bondar, A., Bonvicini, G., Bozek, A., Bra��ko, M., Browder, T. E., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Czank, T., Dash, N., Di Carlo, S., Dole��al, Z., Dong, T. V., Dr��sal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Greenwald, D., Guido, E., Haba, J., Hayasaka, K., Hayashii, H., Hirose, S., Hou, W. -S., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joo, K. K., Julius, T., Kaliyar, A. B., Kang, K. H., Karyan, G., Kato, Y., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., McNeil, J. T., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Niiyama, M., Nisar, N. K., Nishida, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Ritter, M., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stari��, M., Strube, J. F., Sumihama, M., Sumiyoshi, T., Suzuki, K., Takizawa, M., Tamponi, U., Tanida, K., Tao, Y., Tenchini, F., Uchida, M., Uglov, T., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Varner, G., Vorobyev, V., Vossen, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanuki, S., Widmann, E., Won, E., Ye, H., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: Using data recorded with the Belle detector, we observe a new excited hyperon, an $��^{*-}$ candidate decaying into $��^0K^-$ and $��^-K^0_S$ with a mass of $2012.4\pm0.7\ {\rm (stat)\pm\ 0.6\ (\rm syst)}\ {\rm MeV}/c^2$ and a width of $��=6.4^{+2.5}_{-2.0}\ {\rm(stat)}\pm1.6\ {\rm(syst)}\ {\rm MeV}$. The $��^{*-}$ is seen primarily in $��(1S), ��(2S)$, and $��(3S)$ decays., Submitted to PRL
Published: 2018
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46. Measurement of time-dependent $CP$ violation in $B^0 \to K^0_S ��^0 ��^0$ decays

Author: Belle Collaboration, Yusa, Y., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Bansal, V., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bozek, A., Bra��ko, M., Browder, T. E., Cao, L., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dong, T. V., Dr��sal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Giri, A., Goldenzweig, P., Golob, B., Guan, Y., Haba, J., Hayasaka, K., Hayashii, H., Hirose, S., Inami, K., Inguglia, G., Ishikawa, A., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joo, K. K., Kang, K. H., Kawasaki, T., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Kuhr, T., Kumar, R., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Nakano, E., Nanut, T., Nath, K. J., Natkaniec, Z., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, K., Ogawa, S., Ono, H., Pakhlova, G., Pal, B., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Rostomyan, A., Russo, G., Sakai, Y., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Stari��, M., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Ushiroda, Y., Usov, Y., Van Hulse, C., Van Tonder, R., Varner, G., Varvell, K. E., Vorobyev, V., Vossen, A., Waheed, E., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Won, E., Ye, H., Yin, J. H., Zhang, Z. P., Zhilich, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report a measurement of time-dependent $CP$ violation in $B^0 \to K^0_S ��^0 ��^0$ decays using a data sample of $772 \times 10^6$ $B\bar{B}$ pairs collected by the Belle experiment runnin g at the $��(4S)$ resonance at the KEKB $e^+ e^-$ collider. This decay proceeds mainly via a $b\to sd\bar{d}$ "penguin" amplitude. The results are $\sin 2��^{\rm eff}_1 = 0.92^{+0.27}_{-0.31}~$ (stat.) $\pm 0.11$ (syst.) and $\mathcal{A} = 0.28 \pm 0.21$ (stat.) $\pm 0.04$ (syst.), which are the most precise measurements of $CP$ violati on in this decay mode to date. The value for the $CP$-violating parameter $\sin 2��^{\rm eff}_1$ is consistent with that obtained using decay modes proceeding via a $b\to c\bar{c}s$ "tree" amplitude., 7 pages, 3 figures, submitted to PRD(RC)
Published: 2018
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47. Measurement of Time-dependent $CP$ Asymmetries in $B^{0}\to K_S^0 ��$ Decays

Author: Nakano, H., Ishikawa, A., Sumisawa, K., Yamamoto, H., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Beleno, C., Bhuyan, B., Bilka, T., Biswal, J., Bozek, A., Bracko, M., Cervenkov, D., Chekelian, V., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dolezal, Z., Eidelman, S., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Guan, Y., Guido, E., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Hirose, S., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Jia, S., Jin, Y., Julius, T., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kodys, P., Korpar, S., Kotchetkov, D., Krizan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumita, T., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nishida, S., Ogawa, S., Okuno, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Ritter, M., Rostomyan, A., Russo, G., Sahoo, D., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shimizu, N., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stanic, S., Staric, M., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Varner, G., Vorobyev, V., Vossen, A., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Widmann, E., Won, E., Ye, H., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report a measurement of time-dependent $CP$ violation parameters in ${B^0 \to K_S^0 ��}$ decays. The study is based on a data sample, containing ${772 \times 10^6 B\bar{B}}$ pairs, that was collected at the $��(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We obtain the $CP$ violation parameters of ${{\cal S} = -1.32 \pm 0.77 {\rm (stat.)} \pm 0.36{\rm (syst.)}}$ and ${{\cal A} = -0.48 \pm 0.41 {\rm (stat.)} \pm 0.07{\rm (syst.)}}$ for the invariant mass of the $K_S^0 ��$ system up to 2.1 GeV/$c^2$., 18pages, 9figures. the version resubmitted to PRD
Published: 2018
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48. First evidence for $\cos 2��>0$ and resolution of the CKM Unitarity Triangle ambiguity by a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} ��^{+} ��^{-}$ decays

Author: BaBar, The, Collaborations, Belle, Adachi, I., Adye, T., Ahmed, H., Ahn, J. K., Aihara, H., Akar, S., Alam, M. S., Albert, J., Anulli, F., Arnaud, N., Asner, D. M., Aston, D., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Banerjee, Sw., Bansal, V., Barlow, R. J., Batignani, G., Beaulieu, A., Behera, P., Bellis, M., Ben-Haim, E., Bernard, D., Bernlochner, F. U., Bettarini, S., Bettoni, D., Bevan, A. J., Bhardwaj, V., Bhuyan, B., Bianchi, F., Biasini, M., Biswal, J., Blinov, V. E., Bomben, M., Bondar, A., Bonneaud, G. R., Bozek, A., Bozzi, C., Bra��ko, M., Browder, T. E., Brown, D. N., B��nger, C., Burchat, P. R., Buzykaev, A. R., Calabrese, R., Calcaterra, A., Calderini, G., Di Carlo, S., Carpinelli, M., Cartaro, C., Casarosa, G., Cenci, R., Chao, D. S., Chauveau, J., Cheaib, R., Chen, A., Chen, C., Cheng, C. H., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Chrzaszcz, M., Cibinetto, G., Cinabro, D., Cochran, J., Coleman, J. P., Convery, M. R., Cowan, G., Cowan, R., Cremaldi, L., Cunliffe, S., Dash, N., Davier, M., Davis, C. L., De Mori, F., De Nardo, G., Denig, A. G., de Sangro, R., Dey, B., Di Lodovico, F., Dittrich, S., Dole��al, Z., Dorfan, J., Dr��sal, Z., Druzhinin, V. P., Dunwoodie, W., Ebert, M., Echenard, B., Eidelman, S., Eigen, G., Eisner, A. M., Emery, S., Epifanov, D., Ernst, J. A., Faccini, R., Fast, J. E., Feindt, M., Ferber, T., Ferrarotto, F., Ferroni, F., Field, R. C., Filippi, A., Finocchiaro, G., Fioravanti, E., Flood, K. T., Forti, F., Fritsch, M., Fulsom, B. G., Gabathuler, E., Gamba, D., Garg, R., Garmash, A., Gary, J. W., Garzia, I., Gaur, V., Gaz, A., Gelb, M., Gershon, T. J., Gioi, L. Li, Giorgi, M. A., Giri, A., Godang, R., Goldenzweig, P., Golob, B., Golubev, V. B., Gorodeisky, R., Gradl, W., Graham, M. T., Grauges, E., Griessinger, K., Gritsan, A. V., Gr��nberg, O., Guan, Y., Guido, E., Guttman, N., Haba, J., Hafner, A., Hara, T., Harrison, P. F., Hast, C., Hayasaka, K., Hayashii, H., Hearty, C., Heck, M., Hedges, M. T., He��, M., Hirose, S., Hitlin, D. G., Honscheid, K., Hou, W. -S., Hsu, C. -L., Huard, Z., Van Hulse, C., Hutchcroft, D. E., Inami, K., Inguglia, G., Innes, W. R., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Izen, J. M., Jacobs, W. W., Jawahery, A., Jessop, C. P., Jia, S., Jin, Y., Joo, K. K., Julius, T., Kaliyar, A. B., Kang, K. H., Karyan, G., Kass, R., Kichimi, H., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kim, J., Kim, P., King, G. J., Kinoshita, K., Koch, H., Kody��, P., Kolomensky, Yu. G., Korpar, S., Kotchetkov, D., Kowalewski, R., Kravchenko, E. A., Kri��an, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lacker, H. M., Lafferty, G. D., Lanceri, L., Lange, J. S., Lange, D. J., Lankford, A. J., Latham, T. E., Leddig, T., Diberder, F. Le, Lee, I. S., Lee, S. C., Lees, J. P., Leith, D. W. G. S., Li, L. K., Li, Y. B., Li, Y., Libby, J., Liventsev, D., Lockman, W. S., Long, O., LoSecco, J. M., Lou, X. C., Lubej, M., Lueck, T., Luitz, S., Luo, T., Luppi, E., Lusiani, A., Lutz, A. M., MacFarlane, D. B., MacNaughton, J., Mallik, U., Manoni, E., Marchiori, G., Margoni, M., Martellotti, S., Martinez-Vidal, F., Masuda, M., Matsuda, T., Mattison, T. S., Matvienko, D., McKenna, J. A., Meadows, B. T., Merola, M., Miyabayashi, K., Miyashita, T. S., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Muller, D. R., M��ller, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Nayak, M., Neal, H., Neri, N., Nisar, N. K., Nishida, S., Nugent, I. M., Oberhof, B., Ocariz, J., Ogawa, S., Ongmongkolkul, P., Ono, H., Onuchin, A. P., Onuki, Y., Oyanguren, A., Pakhlov, P., Pakhlova, G., Pal, B., Palano, A., Palombo, F., Vazquez, W. Panduro, Paoloni, E., Pardi, S., Park, H., Passaggio, S., Patrignani, C., Patteri, P., Paul, S., Pavelkin, I., Payne, D. J., Pedlar, T. K., Peimer, D. R., Peruzzi, I. M., Pestotnik, R., Piccolo, M., Piilonen, L. E., Pilloni, A., Piredda, G., Poireau, V., Popov, V., Porter, F. C., Posocco, M., Prell, S., Prepost, R., Puccio, E. M. T., Purohit, M. V., Pushpawela, B. G., Rama, M., Randle-Conde, A., Ratcliff, B. N., Raven, G., Resmi, P. K., Ritchie, J. L., Ritter, M., Rizzo, G., Roberts, D. A., Robertson, S. H., R��hrken, M., Roney, J. M., Roodman, A., Rossi, A., Rotondo, M., Rozanska, M., Russo, G., Sacco, R., Said, S. Al, Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Santoro, V., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schroeder, T., Schubert, K. R., Schwanda, C., Schwartz, A. J., Schwitters, R. F., Sciacca, C., Seddon, R. M., Seino, Y., Sekula, S. J., Senyo, K., Seon, O., Serednyakov, S. I., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shimizu, N., Shiu, J. -G., Simi, G., Simon, F., Simonetto, F., Skovpen, Yu. I., Smith, J. G., Smith, A. J. S., So, R. Y., Sobie, R. J., Soffer, A., Sokoloff, M. D., Solodov, E. P., Solovieva, E., Spanier, S. M., Stari��, M., Stroili, R., Sullivan, M. K., Sumisawa, K., Sumiyoshi, T., Summers, D. J., Sun, L., Takizawa, M., Tamponi, U., Tanida, K., Taras, P., Tasneem, N., Tenchini, F., Tisserand, V., Todyshevx, K. Yu., Touramanis, C., Uchida, M., Uglov, T., Unno, Y., Uno, S., Vahsen, S. E., Varner, G., Vasseur, G., Va'vra, J., ��ervenkov, D., Verderi, M., Vitale, L., Vorobyev, V., Vo��, C., Wagner, S. R., Waheed, E., Waldi, R., Walsh, J. J., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, Y., Wilson, F. F., Wilson, J. R., Wisniewski, W. J., Won, E., Wormser, G., Wright, D. M., Wu, S. L., Ye, H., Yuan, C. Z., Yusa, Y., Zakharov, S., Zallo, A., Zani, L., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We present first evidence that the cosine of the CP-violating weak phase $2��$ is positive, and hence exclude trigonometric multifold solutions of the CKM Unitarity Triangle using a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} ��^{+} ��^{-}$ decays, where $h^{0} \in \{��^{0}, ��, ��\}$ denotes a light unflavored and neutral hadron. The measurement is performed combining the final data sets of the BaBar and Belle experiments collected at the $��(4S)$ resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain $( 471 \pm 3 )\times 10^6\, B\bar{B}$ pairs recorded by the BaBar detector and $( 772 \pm 11 )\times 10^6\, B\bar{B}$ pairs recorded by the Belle detector. The results of the measurement are $\sin{2��} = 0.80 \pm 0.14 \,(\rm{stat.}) \pm 0.06 \,(\rm{syst.}) \pm 0.03 \,(\rm{model})$ and $\cos{2��} = 0.91 \pm 0.22 \,(\rm{stat.}) \pm 0.09 \,(\rm{syst.}) \pm 0.07 \,(\rm{model})$. The result for the direct measurement of the angle $��$ of the CKM Unitarity Triangle is $��= \left( 22.5 \pm 4.4 \,(\rm{stat.}) \pm 1.2 \,(\rm{syst.}) \pm 0.6 \,(\rm{model}) \right)^{\circ}$. The quoted model uncertainties are due to the composition of the $D^{0} \to K_{S}^{0} ��^{+} ��^{-}$ decay amplitude model, which is newly established by performing a Dalitz plot amplitude analysis using a high-statistics $e^{+}e^{-} \to c\bar{c}$ data sample. CP violation is observed in $B^{0} \to D^{(*)} h^{0}$ decays at the level of $5.1$ standard deviations. The significance for $\cos{2��}>0$ is $3.7$ standard deviations. The trigonometric multifold solution $��/2 - ��= (68.1 \pm 0.7)^{\circ}$ is excluded at the level of $7.3$ standard deviations. The measurement resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle., To be submitted to Physical Review Letters
Published: 2018
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49. Measurement of the branching fraction and time-dependent $CP$ asymmetry for $B^0\to J/��^0$ decays

Author: Belle Collaboration, Pal, B., Schwartz, A. J., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Badhrees, I., Bahinipati, S., Behera, P., Bele��o, C., Bhuyan, B., Bilka, T., Biswal, J., Bozek, A., Bra��ko, M., Cao, L., ��ervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Golob, B., Guan, Y., Hara, T., Hayasaka, K., Hayashii, H., Higuchi, T., Hou, W. -S., Hsu, C. -L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Joffe, D., Julius, T., Karyan, G., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kody��, P., Korpar, S., Kotchetkov, D., Kri��an, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lalwani, K., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Lu, P. -C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Nakano, E., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Nishida, S., Ogawa, S., Ono, H., Pakhlova, G., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Purohit, M. V., Ritter, M., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shibata, T. -A., Simon, F., Sokolov, A., Solovieva, E., Stari��, M., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tao, Y., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vorobyev, V., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Widmann, E., Won, E., Yelton, J., Yin, J. H., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics::Experiment
Abstract: We measure the branching fraction and time-dependent $CP$-violating asymmetry for $B^0\to J/��^0$ decays using a data sample of 711 ${\rm fb^{-1}}$ collected on the $��(4S)$ resonance by the Belle experiment running at the KEKB $e^+e^-$ collider. The branching fraction is measured to be $\mathcal{B}(B^0\to J/��^0) = [1.62\,\pm 0.11~({\rm stat}) \pm0.07~({\rm syst})]\times 10^{-5}$, which is the most precise measurement to date. The measured $CP$ asymmetry parameters are $\mathcal{S} = -0.59\,\pm 0.19~({\rm stat}) \pm 0.03~({\rm syst})$ and $\mathcal{A} = -0.15\,\pm 0.14~({\rm stat})\,^{+0.04}_{-0.03}~({\rm syst})$. The mixing-induced $CP$ asymmetry ($\mathcal{S}$) differs from the case of no $CP$ violation by 3.0 standard deviations, and the direct $CP$ asymmetry ($\mathcal{A}$) is consistent with zero., 8 pages, 3 figures, submitted to Phys. Rev. D (RC)
Published: 2018
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50. Observation of $e^+e^-\to��^+��^-��^0��_{b1,2}(1P)$ and search for $e^+e^-\to��_{b1,2}(1P)$ at $\sqrt{s}=$10.96---11.05 GeV

Author: Yin, J. H., Yuan, C. Z., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Bansal, V., Behera, P., Beleno, C., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bracko, M., Browder, T. E., Cao, L., Cervenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dingfelder, J., Dolezal, Z., Dong, T. V., Drasal, Z., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Golob, B., Haba, J., Hayasaka, K., Hayashii, H., Hirose, S., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kodys, P., Korpar, S., Kotchetkov, D., Krizan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Mussa, R., Nakano, E., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, K., Ogawa, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Rostomyan, A., Russo, G., Sahoo, D., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Staric, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Van Hulse, C., Van Tonder, R., Varner, G., Vinokurova, A., Vorobyev, V., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanuki, S., Widmann, E., Won, E., Yamamoto, H., Ye, H., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We report searches for the processes $e^+e^-\to��^+��^-��^0��_{bJ}$ and $e^+e^-\to��_{bJ}$ (J=1,2) based on data samples collected by the Belle experiment at the KEKB collider. We report the first observation of the process $e^+e^-\to (��^+��^-��^0)_{\rm non-��}��_{b1}$ and first evidence for $e^+e^-\to��_{bJ}$ in the vicinity of the $��(11020)$ resonance, with center-of-mass energies from 10.96 to 11.05~GeV. The significances for $(��^+��^-��^0)_{\rm non-��}��_{b1}$ and $��_{bJ}$ are greater than $5.3��$ and $4.0��$, respectively. We also investigate the energy dependence of the $e^+e^-\to��^+��^-��^0��_{bJ}$ cross section, but we cannot determine whether the contributions are from the $��(10860)$ and $��(11020)$ resonances or non-resonant continuum processes. The signals for $e^+e^-\to ��_{bJ}$ are not significant, and the upper limits of the Born cross sections at the 90\% confidence level are $0.7$ and $1.0$~pb for $e^+e^-\to ��_{b1}$ and $��_{b2}$, respectively, for center-of-mass energies from 10.96 to 11.05~GeV., 8pages, 3 figures
Published: 2018
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