Author: "Sohn Y" - Searchworks@Jio Institute Digital Library Search Results

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2,164 results on '"Sohn Y"'

51. Evidence of $\Upsilon(1S) \to J/\psi+\chi_{c1}$ and search for double-charmonium production in $\Upsilon(1S)$ and $\Upsilon(2S)$ decays

Author: Belle Collaboration, Yang, S. D., Shen, C. P., Ban, Y., Abdesselam, A., Adachi, I., Aihara, H., Said, S. Al, Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bakich, A. M., Bansal, V., Behera, P., Bhuyan, B., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Dingfelder, J., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, K., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayashii, H., He, X. H., Hou, W. -S., Huschle, M., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Jaegle, I., Joffe, D., Joo, K. K., Julius, T., Kawasaki, T., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Li, J., Li, Y., Gioi, L. Li, Libby, J., Liventsev, D., Lukin, P., Miyabayashi, K., Miyata, H., Moll, A., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nisar, N. K., Nishida, S., Okuno, S., Ostrowicz, W., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ribežl, E., Ritter, M., Rostomyan, A., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Won, E., Yamaoka, J., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, Z. P., Zhilich, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: Using data samples of $102\times10^6$ $\Upsilon(1S)$ and $158\times10^6$ $\Upsilon(2S)$ events collected with the Belle detector, a first experimental search has been made for double-charmonium production in the exclusive decays $\Upsilon(1S,2S)\rightarrow J/\psi(\psi')+X$, where $X=\eta_c$, $\chi_{cJ} (J=~0,~1,~2)$, $\eta_c(2S)$, $X(3940)$, and $X(4160)$. No significant signal is observed in the spectra of the mass recoiling against the reconstructed $J/\psi$ or $\psi'$ except for the evidence of $\chi_{c1}$ production with a significance of $4.6\sigma$ for $\Upsilon(1S)\rightarrow J/\psi+\chi_{c1}$. The measured branching fraction $\BR(\Upsilon(1S)\rightarrow J/\psi+\chi_{c1})$ is $(3.90\pm1.21(\rm stat.)\pm0.23 (\rm syst.))\times10^{-6}$. The $90\%$ confidence level upper limits on the branching fractions of the other modes having a significance of less than $3\sigma$ are determined. These results are consistent with theoretical calculations using the nonrelativistic QCD factorization approach., Comment: 12 pages, 4 figures, 1 table. The fit range was extended to include X(4160) signal according to referee's suggestions. Other results unchanged. Paper was accepted for publication as a regular article in Physical Review D
Published: 2014
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52. Measurement of the branching fraction of $B^+ \to \tau^+ \nu_\tau$ decays with the semileptonic tagging method and the full Belle data sample

Author: Belle Collaboration, Abdesselam, A., Adachi, I., Adamczyk, K., Aihara, H., Said, S. Al, Arinstein, K., Arita, Y., Asner, D. M., Aso, T., Aulchenko, V., Aushev, T., Ayad, R., Aziz, T., Bahinipati, S., Bakich, A. M., Bala, A., Ban, Y., Bansal, V., Barberio, E., Barrett, M., Bartel, W., Bay, A., Bedny, I., Behera, P., Belhorn, M., Belous, K., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Blyth, S., Bobrov, A., Bondar, A., Bonvicini, G., Bookwalter, C., Boulahouache, C., Bozek, A., Bračko, M., Brodzicka, J., Brovchenko, O., Browder, T. E., Červenkov, D., Chang, M. -C., Chang, P., Chao, Y., Chekelian, V., Chen, A., Chen, K. -F., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Crnkovic, J., Dalseno, J., Danilov, M., Dingfelder, J., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Epifanov, D., Esen, S., Farhat, H., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Frost, O., Fujikawa, M., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Giordano, F., Glattauer, R., Goh, Y. M., Golob, B., Perdekamp, M. Grosse, Grzymkowska, O., Guo, H., Haba, J., Hamer, P., Han, Y. L., Hara, K., Hara, T., Hasegawa, Y., Hasenbusch, J., Hayasaka, K., Hayashii, H., He, X. H., Heck, M., Heffernan, D., Heider, M., Higuchi, T., Himori, S., Horiguchi, T., Horii, Y., Hoshi, Y., Hoshina, K., Hou, W. -S., Hsiung, Y. B., Huschle, M., Hyun, H. J., Igarashi, Y., Iijima, T., Imamura, M., Inami, K., Ishikawa, A., Itagaki, K., Itoh, R., Iwabuchi, M., Iwasaki, M., Iwasaki, Y., Iwashita, T., Iwata, S., Jaegle, I., Jones, M., Joo, K. K., Julius, T., Kah, D. H., Kakuno, H., Kang, J. H., Kapusta, P., Kataoka, S. U., Katayama, N., Kato, E., Kato, Y., Katrenko, P., Kawai, H., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, B. H., Kim, D. Y., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, S. K., Kim, Y. J., Kinoshita, K., Kleinwort, C., Klucar, J., Ko, B. R., Kobayashi, N., Koblitz, S., Kodyš, P., Koga, Y., Korpar, S., Kouzes, R. T., Križan, P., Krokovny, P., Kronenbitter, B., Kuhr, T., Kumar, R., Kumita, T., Kurihara, E., Kuroki, Y., Kuzmin, A., Kvasnička, P., Kwon, Y. -J., Lai, Y. -T., Lange, J. S., Lee, S. -H., Leitgab, M., Leitner, R., Li, J., Li, X., Li, Y., Gioi, L. Li, Libby, J., Limosani, A., Liu, C., Liu, Y., Liu, Z. Q., Liventsev, D., Louvot, R., Lukin, P., MacNaughton, J., Matvienko, D., Matyja, A., McOnie, S., Mikami, Y., Miyabayashi, K., Miyachi, Y., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G. B., Mohapatra, D., Moll, A., Mori, T., Moser, H. -G., Müller, T., Muramatsu, N., Mussa, R., Nagamine, T., Nagasaka, Y., Nakahama, Y., Nakamura, I., Nakamura, K., Nakano, E., Nakano, H., Nakano, T., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Natkaniec, Z., Nayak, M., Nedelkovska, E., Negishi, K., Neichi, K., Ng, C., Niebuhr, C., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Nitoh, O., Nozaki, T., Ogawa, A., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Ono, Y., Onuki, Y., Ostrowicz, W., Oswald, C., Ozaki, H., Pakhlov, P., Pakhlova, G., Palka, H., Panzenböck, E., Park, C. -S., Park, C. W., Park, H., Park, H. K., Park, K. S., Peak, L. S., Pedlar, T. K., Peng, T., Pesantez, L., Pestotnik, R., Peters, M., Petrič, M., Piilonen, L. E., Poluektov, A., Prim, M., Prothmann, K., Reisert, B., Ribežl, E., Ritter, M., Röhrken, M., Rorie, J., Rostomyan, A., Rozanska, M., Ryu, S., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sasao, N., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schönmeier, P., Schram, M., Schwanda, C., Schwartz, A. J., Schwenker, B., Seidl, R., Sekiya, A., Semmler, D., Senyo, K., Seon, O., 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., Smerkol, P., Sohn, Y. -S., Sokolov, A., Soloviev, Y., Solovieva, E., Stanič, S., Starič, M., Steder, M., Stypula, J., Sugihara, S., Sugiyama, A., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Suzuki, K., Suzuki, S., Suzuki, S. Y., Suzuki, Z., Takeichi, H., Tamponi, U., Tanaka, M., Tanaka, S., Tanida, K., Taniguchi, N., Tatishvili, G., Taylor, G. N., Teramoto, Y., Thorne, F., Tikhomirov, I., Trabelsi, K., Tse, Y. F., Tsuboyama, T., Uchida, M., Uchida, T., Uchida, Y., Uehara, S., Ueno, K., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vervink, K., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M. N., Wang, C. H., Wang, J., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Wedd, R., Wehle, S., White, E., Wiechczynski, J., Williams, K. M., Won, E., Yabsley, B. D., Yamada, S., Yamamoto, H., Yamaoka, J., Yamashita, Y., Yamauchi, M., Yashchenko, S., Yook, Y., Yuan, C. Z., Yusa, Y., Zander, D., Zhang, C. C., Zhang, L. M., Zhang, Z. P., Zhao, L., Zhilich, V., Zhou, P., Zhulanov, V., Zivko, T., Zupanc, A., Zwahlen, N., and Zyukova, O.
Subjects: High Energy Physics - Experiment
Abstract: We report a measurement of the branching fraction of $B^+ \to \tau^+ \nu_\tau$ decays using a data sample of $772 \times 10^6 B \bar{B}$ pairs, collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We reconstruct the accompanying $B$ meson in a semileptonic decay and detect the $B^+ \to \tau^+ \nu_\tau$ candidate in the recoiling event. We obtain a branching fraction of ${\cal B}(B^+ \to \tau^+ \nu_\tau) = [1.25 \pm 0.28 ({\rm stat.}) \pm 0.27({\rm syst.})] \times 10^{-4}$. This result is in good agreement with previous measurements and the expectation from calculations based on the Standard Model., Comment: Belle conference paper for the International Workshop on the CKM Unitarity Triangle (CKM 2014)
Published: 2014

53. Observation of a new charged charmoniumlike state in B -> J/psi K pi decays

Author: Belle Collaboration, Chilikin, K., Mizuk, R., Adachi, I., Aihara, H., Said, S. Al, Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Aziz, T., Bakich, A. M., Bansal, V., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, K., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Frost, O., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Hou, W. -S., Huschle, M., Hyun, H. J., Ishikawa, A., Itoh, R., Iwasaki, Y., Jaegle, I., Joo, K. K., Julius, T., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Ko, B. R., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Li, Y., Gioi, L. Li, Libby, J., Liu, Y., Liventsev, D., Lukin, P., Miyabayashi, K., Miyata, H., Mohanty, G. B., Moll, A., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nedelkovska, E., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Pedlar, T. K., Petrič, M., Piilonen, L. E., Ribežl, E., Ritter, M., Rostomyan, A., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seon, O., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumisawa, K., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Thorne, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, Y., Wehle, S., Williams, K. M., Won, E., Yamaoka, J., Yashchenko, S., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We present the results of an amplitude analysis of anti-B0 -> J/psi K- pi+ decays. A new charged charmoniumlike state Zc(4200)+ decaying to J/psi pi+ is observed with a significance of 6.2 sigma. The mass and width of the Zc(4200)+ are 4196 +31-29 +17-13 MeV/c^2 and 370 +70-70 +70-132 MeV, respectively; the preferred assignment of the quantum numbers is J^P = 1^+. In addition, we find evidence for Zc(4430)+ -> J/psi pi+. The analysis is based on a 711 fb^-1 data sample collected by the Belle detector at the asymmetric-energy e+ e- collider KEKB., Comment: 14 pages, 13 figures
Published: 2014
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54. Observation of the decay $B^0 \to \eta' K^*(892)^0$

Author: Belle Collaboration, Sato, S., Yusa, Y., Mohanty, G. B., Abdesselam, A., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aushev, T., Ayad, R., Bahinipati, S., Bakich, A. M., Bansal, V., Bhardwaj, V., Bhuyan, B., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Frost, O., Gaur, V., Ganguly, S., Garmash, A., Gillard, R., Glattauer, R., Goh, Y. M., Golob, B., Grzymkowska, O., Hayasaka, K., Hayashii, H., He, X. H., Higuchi, T., Hou, W. -S., Huschle, M., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Jaegle, I., Joo, K. K., Julius, T., Kato, E., Kawasaki, T., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumita, T., Kwon, Y. -J., Li, J., Li, Y., Libby, J., Liventsev, D., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Moll, A., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nedelkovska, E., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Park, H., Pedlar, T. K., Petrič, M., Piilonen, L. E., Ritter, M., Rostomyan, A., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Stypula, J., Sumihama, M., Tamponi, U., Tatishvili, G., Teramoto, Y., Thorne, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Van Hulse, C., Vanhoefer, P., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Wehle, S., Williams, K. M., Won, E., Yashchenko, S., Yook, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report a search for charmless hadronic decays of neutral $B$ mesons to $\eta' K^{*}(892)^{0}$. The results are based on a 711fb$^{-1}$ data sample that contains $772\times 10^6 B\overline{B}$ pairs, collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric energy $e^+e^-$ collider. We observe the decay for the first time with a significance of 5.0 standard deviations and obtain its branching fraction ${\cal B}[B^0\to\eta' K^{*}(892)^{0}]=[2.6\pm0.7{\rm (stat)}\pm0.2{\rm (syst)}]\times 10^{-6}$. We also measure the $CP$ violating asymmetry as ${\cal A}_{CP}[B^0\to\eta' K^{*}(892)^{0}]=-0.22\pm0.29{\rm (stat)}\pm0.07{\rm syst}$., Comment: 11 pages, 2 figures, submitted PRD(RC)
Published: 2014

55. Measurement of Time-Dependent $CP$ Violation in $B^0\to \eta'K^0$ Decays

Author: Belle Collaboration, Šantelj, L., Yusa, Y., Abdesselam, A., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bahinipati, S., Bakich, A. M., Bansal, V., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Frost, O., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Glattauer, R., Goh, Y. M., Golob, B., Haba, J., Hara, K., Hayasaka, K., Hayashii, H., He, X. H., Higuchi, T., Hou, W. -S., Hyun, H. J., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Jaegle, I., Joo, K. K., Kakuno, H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Ko, B. R., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Li, J., Li, Y., Gioi, L. Li, Libby, J., Liventsev, D., Matvienko, D., Miyabayashi, K., Miyata, H., Mohanty, G. B., Moll, A., Mori, T., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nedelkovska, E., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ribežl, E., Ritter, M., Rostomyan, A., Sakai, Y., Sandilya, S., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumihama, M., Tamponi, U., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vorobyev, V., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, Y., Wehle, S., Williams, K. M., Won, E., Yashchenko, S., Yook, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We present a measurement of the time-dependent $CP$ violation parameters in $B^0\to\eta'K^0$ decays. The measurement is based on the full data sample containing $772\times 10^6$ $B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance using the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. The measured values of the mixing-induced and direct $CP$ violation parameters are: \begin{align} \sin 2 \phi^{\rm eff}_1 &= +0.68\pm 0.07 \pm 0.03, \nonumber \\ \mathcal{A}_{\eta'K^0} &= +0.03\pm 0.05\pm 0.04, \nonumber \end{align} where the first uncertainty is statistical and the second is systematic. The values obtained are the most accurate to date. Furthermore, these results are consistent with our previous measurements and with the world-average value of $\sin 2\phi_1$ measured in $B^0\to J/\psi K^0$ decays.}, Comment: 15 pages, 3 figures
Published: 2014
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56. Observation of $e^+e^- \to \pi^+ \pi^- \pi^0 \chi_{bJ}$ and search for $X_b \to \omega \Upsilon(1S)$ at $\sqrt{s}\sim 10.867$ GeV

Author: Belle Collaboration, He, X. H., Shen, C. P., Yuan, C. Z., Ban, Y., Abdesselam, A., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bahinipati, S., Bakich, A. M., Bansal, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Browder, T. E., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Glattauer, R., Goh, Y. M., Grzymkowska, O., Haba, J., Hayasaka, K., Hayashii, H., Hou, W. -S., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Jaegle, I., Joo, K. K., Julius, T., Kato, E., Kawasaki, T., Kim, D. Y., Kim, M. J., Kim, Y. J., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kumita, T., Kwon, Y. -J., Li, Y., Libby, J., Liventsev, D., Matvienko, D., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nedelkovska, E., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Rostomyan, A., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Sevior, M. E., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumisawa, K., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Thorne, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Wehle, S., Williams, K. M., Won, E., Yamaoka, J., Yashchenko, S., Yook, Y., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: The $e^+e^- \to \pi^+ \pi^- \pi^0 \chi_{bJ}$ ($J=0,~1,~2$) processes are studied using a 118~fb$^{-1}$ data sample collected at a center-of-mass energy of 10.867 GeV, in the $\Upsilon(10860)$ energy range, with the Belle detector. The $\pi^+ \pi^- \pi^0 \chi_{b1}$, $\pi^+\pi^-\pi^0\chi_{b2}$, $\omega\chi_{b1}$ signals and the evidence of $\omega\chi_{b2}$ are observed for the first time and the cross sections are measured. No significant $\pi^+\pi^-\pi^0\chi_{b0}$ or $\omega\chi_{b0}$ signal is observed and 90\% confidence level upper limits on the cross sections for these two processes are obtained. In the $\pi^+\pi^-\pi^0$ invariant mass spectrum, significant non-$\omega$ signals are also observed. We search for the $X(3872)$-like state with a hidden $b\bar{b}$ component (named $X_b$) decaying into $\omega \Upsilon(1S)$; no significant signal is observed with a mass between $10.55$ and $10.65$ GeV/$c^2$., Comment: 7 pages, 3 figures, accepted for publication as a Letter in Physical Review Letters
Published: 2014
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57. Search for $B^+ \to e^+ \nu$ and $B^+ \to \mu^+ \nu$ decays using hadronic tagging

Author: Belle Collaboration, Yook, Y., Kwon, Y. -J., Abdesselam, A., Adachi, I., Said, S. Al, Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bahinipati, S., Bakich, A. M., Bala, A., Bansal, V., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Frost, O., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Glattauer, R., Goh, Y. M., Golob, B., Grzymkowska, O., Haba, J., Hara, K., Hayasaka, K., Hayashii, H., He, X. H., Heck, M., Higuchi, T., Horii, Y., Hoshi, Y., Hou, W. -S., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kato, E., Katrenko, P., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kuzmin, A., Lange, J. S., Li, Y., Gioi, L. Li, Liu, C., Liu, Y., Liventsev, D., Lukin, P., Miyabayashi, K., Miyata, H., Mohanty, G. B., Moll, A., Mussa, R., Nagasaka, Y., Nakamura, I., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Pakhlov, P., Park, C. -S., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uglov, T., Urquijo, P., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Wehle, S., Williams, K. M., Won, E., Yamashita, Y., Yashchenko, S., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We present a search for the rare leptonic decays $B^+ \to e^+ \nu_e$ and $B^+ \to \mu^+ \nu_\mu$, using the full $\Upsilon(4S)$ data sample of $772\times 10^6$ $B\bar{B}$ pairs collected with the Belle detector at the $\small\textbf{KEKB}$ asymmetric-energy $e^+ e^-$ collider. One of the $B$ mesons from the $\Upsilon(4S) \to B\bar{B}$ decay is fully reconstructed in a hadronic mode, while the recoiling side is analyzed for the signal decay. We find no evidence of a signal in any of the decay modes. Upper limits of the corresponding branching fractions are determined as ${\cal B}(B^+ \to e^+ \nu_e)<3.5\times 10^{-6}$ and ${\cal B}(B^+ \to \mu^+ \nu_\mu)<2.7 \times 10^{-6}$ at 90$\%$ confidence level., Comment: 13 pages, 7 figures, Submitted to PRD
Published: 2014
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58. The Physics of the B Factories

Author: Bevan, A. J., Golob, B., Mannel, Th., Prell, S., Yabsley, B. D., Abe, K., Aihara, H., Anulli, F., Arnaud, N., Aushev, T., Beneke, M., Beringer, J., Bianchi, F., Bigi, I. I., Bona, M., Brambilla, N., rodzicka, J. B, Chang, P., Charles, M. J., Cheng, C. H., Cheng, H. -Y., Chistov, R., Colangelo, P., Coleman, J. P., Drutskoy, A., Druzhinin, V. P., Eidelman, S., Eigen, G., Eisner, A. M., Faccini, R., Flood, K. T ., Gambino, P., Gaz, A., Gradl, W., Hayashii, H., Higuchi, T., Hulsbergen, W. D., Hurth, T., Iijima, T., Itoh, R., Jackson, P. D., Kass, R., Kolomensky, Yu. G., Kou, E., Križan, P., Kronfeld, A., Kumano, S., Kwon, Y. J., Latham, T. E., Leith, D. W. G. S., Lüth, V., Martinez-Vidal, F., Meadows, B. T., Mussa, R., Nakao, M., Nishida, S., Ocariz, J., Olsen, S. L., Pakhlov, P., Pakhlova, G., Palano, A., Pich, A., Playfer, S., Poluektov, A., Porter, F. C., Robertson, S. H., Roney, J. M., Roodman, A., Sakai, Y., Schwanda, C., Schwartz, A. J., Seidl, R., Sekula, S. J., Steinhauser, M., Sumisawa, K., Swanson, E. S., Tackmann, F., Trabelsi, K., Uehara, S., Uno, S., van der Water, R., Vasseur, G., Verkerke, W., Waldi, R., Wang, M. Z., Wilson, F. F., Zupan, J., Zupanc, A., Adachi, I., Albert, J., Banerjee, Sw., Bellis, M., Ben-Haim, E., Biassoni, P., Cahn, R. N., Cartaro, C., Chauveau, J., Chen, C., Chiang, C. C., Cowan, R., Dalseno, J., Davier, M., Davies, C., Dingfelder, J. C., nard, B. Eche, Epifanov, D., Fulsom, B. G., Gabareen, A. M., Gary, J. W., Godang, R., Graham, M. T., Hafner, A., Hamilton, B., Hartmann, T., Hayasaka, K., Hearty, C., Iwasaki, Y., Khodjamirian, A., Kusaka, A., Kuzmin, A., Lafferty, G. D., Lazzaro, A., Li, J., Lindemann, D., Long, O., Lusiani, A., Marchiori, G., Martinelli, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Muller, D. R., Nakazawa, H., Ongmongkolkul, P., Pacetti, S., Palombo, F., Pedlar, T. K., Piilonen, L. E., Pilloni, A., Poireau, V., Prothmann, K., Pulliam, T., Rama, M., Ratcliff, B. N., Roudeau, P., Schrenk, S., Schroeder, T., Schubert, K. R., Shen, C. P., Shwartz, B., Soffer, A., Solodov, E. P., Somov, A., Starič, M., Stracka, S., Telnov, A. V., Todyshev, K. Yu., Tsuboyama, T., Uglov, T., Vinokurova, A., Walsh, J. J., Watanabe, Y., Won, E., Wormser, G., Wright, D. H., Ye, S., Zhang, C. C., Abachi, S., Abashian, A., Abe, N., Abe, R., Abe, T., Abrams, G. S., Adam, I., Adamczyk, K., Adametz, A., Adye, T., Agarwal, A., Ahmed, H., Ahmed, M., Ahmed, S., Ahn, B. S., Ahn, H. S., Aitchison, I. J. R., Akai, K., Akar, S., Akatsu, M., Akemoto, M., Akhmetshin, R., Akre, R., Alam, M. S., Albert, J. N., Aleksan, R., Alexander, J. P., Alimonti, G., Allen, M. T., Allison, J., Allmendinger, T., Alsmiller, J. R. G., Altenburg, D., Alwyn, K. E., An, Q., Anderson, J., Andreassen, R., Andreotti, D., Andreotti, M., Andress, J. C., Angelini, C., Anipko, D., Anjomshoaa, A., Anthony, P. L., Antillon, E. A., Antonioli, E., Aoki, K., Arguin, J. F., Arinstein, K., Arisaka, K., Asai, K., Asai, M., Asano, Y., Asgeirsson, D. J., Asner, D. M., Aso, T., Aspinwall, M. L., Aston, D., Atmacan, H., Aubert, B., Aulchenko, V., Ayad, R., Azemoon, T., Aziz, T., Azzolini, V., Azzopardi, D. E., Baak, M. A., Back, J. J., Bagnasco, S., Bahinipati, S., Bailey, D. S., Bailey, S., Bailly, P., van Bakel, N., Bakich, A. M., Bala, A., Balagura, V., Baldini-Ferroli, R., Ban, Y., Banas, E., Band, H. R., Banerjee, S., Baracchini, E., Barate, R., Barberio, E., Barbero, M., Bard, D. J., Barillari, T., Barlow, N. R., Barlow, R. J., Barrett, M., Bartel, W., Bartelt, J., Bartoldus, R., Batignani, G., Battaglia, M., Bauer, J. M., Bay, A., Beaulieu, M., Bechtle, P., Beck, T. W., Becker, J., Becla, J., Bedny, I., Behari, S., Behera, P. K., Behn, E., Behr, L., Beigbeder, C., Beiline, D., Bell, R., Bellini, F., Bellodi, G., Belous, K., Benayoun, M., Benelli, G., Benitez, J. F., Benkebil, M., Berger, N., Bernabeu, J., Bernard, D., Bernet, R., Bernlochner, F. U., Berryhill, J. W., Bertsche, K., Besson, P., Best, D. S., Bettarini, S., Bettoni, D., Bhardwaj, V., Bhimji, W., Bhuyan, B., Biagini, M. E., Biasini, M., van Bibber, K., Biesiada, J., Bingham, I., Bionta, R. M., Bischofberger, M., Bitenc, U., Bizjak, I., Blanc, F., Blaylock, G., Blinov, V. E., Bloom, E., Bloom, P. C., Blount, N. L., Blouw, J., Bly, M., Blyth, S., Boeheim, C. T., Bomben, M., Bondar, A., Bondioli, M., Bonneaud, G. R., Bonvicini, G., Booke, M., Booth, J., Borean, C., Borgland, A. W., Borsato, E., Bosi, F., Bosisio, L., Botov, A. A., Bougher, J., Bouldin, K., Bourgeois, P., Boutigny, D., Bowerman, D. A., Boyarski, A. M., Boyce, R. F., Boyd, J. T., Bozek, A., Bozzi, C., Bračko, M., Brandenburg, G., Brandt, T., Brau, B., Brau, J., Breon, A. B., Breton, D., Brew, C., Briand, H., Bright-Thomas, P. G., Brigljević, V., Britton, D. I., Brochard, F., Broomer, B., Brose, J., Browder, T. E., Brown, C. L., Brown, C. M., Brown, D. N., Browne, M., Bruinsma, M., Brunet, S., Bucci, F., Buchanan, C., Buchmueller, O. L., Bünger, C., Bugg, W., Bukin, A. D., Bula, R., Bulten, H., Burchat, P. R., Burgess, W., Burke, J. P., Button-Shafer, J., Buzykaev, A. R., Buzzo, A., Cai, Y., Calabrese, R., Calcaterra, A., Calderini, G., Camanzi, B., Campagna, E., Campagnari, C., Capra, R., Carassiti, V., Carpinelli, M., Carroll, M., Casarosa, G., Casey, B. C. K., Cason, N. M., Castelli, G., Cavallo, N., Cavoto, G., Cecchi, A., Cenci, R., Cerizza, G., Cervelli, A., Ceseracciu, A., Chai, X., Chaisanguanthum, K. S., Chang, M. C., Chang, Y. H., Chang, Y. W., Chao, D. S., Chao, M., Chao, Y., Charles, E., Chavez, C. A., Cheaib, R., Chekelian, V., Chen, A., Chen, E., Chen, G. P., Chen, H. F., Chen, J. -H., Chen, J. C., Chen, K. F., Chen, P., Chen, S., Chen, W. T., Chen, X., Chen, X. R., Chen, Y. Q., Cheng, B., Cheon, B. G., Chevalier, N., Chia, Y. M., Chidzik, S., Chilikin, K., Chistiakova, M. V., Cizeron, R., Cho, I. S., Cho, K., Chobanova, V., Choi, H. H. F., Choi, K. S., Choi, S. K., Choi, Y., Choi, Y. K., Christ, S., Chu, P. H., Chun, S., Chuvikov, A., Cibinetto, G., Cinabro, D., Clark, A. R., Clark, P. J., Clarke, C. K., Claus, R., Claxton, B., Clifton, Z. C., Cochran, J., Cohen-Tanugi, J., Cohn, H., Colberg, T., Cole, S., Colecchia, F., Condurache, C., Contri, R., Convert, P., Convery, M. R., Cooke, P., Copty, N., Cormack, C. M., Corso, F. Dal, Corwin, L. A., Cossutti, F., Cote, D., Ramusino, A. Cotta, Cottingham, W. N., Couderc, F., Coupal, D. P., Covarelli, R., Cowan, G., Craddock, W. W., Crane, G., Crawley, H. B., Cremaldi, L., Crescente, A., Cristinziani, M., Crnkovic, J., Crosetti, G., Cuhadar-Donszelmann, T., Cunha, A., Curry, S., D'Orazio, A., Dû, S., Dahlinger, G., Dahmes, B., Dallapiccola, C., Danielson, N., Danilov, M., Das, A., Dash, M., Dasu, S., Datta, M., Daudo, F., Dauncey, P. D., David, P., Davis, C. L., Day, C. T., De Mori, F., De Domenico, G., De Groot, N., De la Vaissière, C., de la Vaissière, Ch., de Lesquen, A., De Nardo, G., de Sangro, R., De Silva, A., DeBarger, S., Decker, F. J., Sanchez, P. del Amo, Del Buono, L., Del Gamba, V., del Re, D., Della Ricca, G., Denig, A. G., Derkach, D., Derrington, I. M., DeStaebler, H., Destree, J., Devmal, S., Dey, B., Di Girolamo, B., Di Marco, E., Dickopp, M., Dima, M. O., Dittrich, S., Dittongo, S., Dixon, P., Dneprovsky, L., Dohou, F., Doi, Y., Doležal, Z., Doll, D. A., Donald, M., Dong, L., Dong, L. Y., Dorfan, J., Dorigo, A., Dorsten, M. P., Dowd, R., Dowdell, J., Drásal, Z., Dragic, J., Drummond, B. W., Dubitzky, R. S., Dubois-Felsmann, G. P., Dubrovin, M. S., Duh, Y. C., Duh, Y. T., Dujmic, D., Dungel, W., Dunwoodie, W., Dutta, D., Dvoretskii, A., Dyce, N., Ebert, M., Eckhart, E. A., Ecklund, S., Eckmann, R., Eckstein, P., Edgar, C. L., Edwards, A. J., Egede, U., Eichenbaum, A. M., Elmer, P., Emery, S., Enari, Y., Enomoto, R., Erdos, E., Erickson, R., Ernst, J. A., Erwin, R. J., Escalier, M., Eschenburg, V., Eschrich, I., Esen, S., Esteve, L., Evangelisti, F., Everton, C. W., Eyges, V., Fabby, C., Fabozzi, F., Fahey, S., Falbo, M., Fan, S., Fang, F., Fanin, C., Farbin, A., Farhat, H., Fast, J. E., Feindt, M., Fella, A., Feltresi, E., Ferber, T., Fernholz, R. E., Ferrag, S., Ferrarotto, F., Ferroni, F., Field, R. C., Filippi, A., Finocchiaro, G., Fioravanti, E., da Costa, J. Firmino, Fischer, P. -A., Fisher, A., Fisher, P. H., Flacco, C. J., Flack, R. L., Flaecher, H. U., Flanagan, J., Flanigan, J. M., Ford, K. E., Ford, W. T., Forster, I. J., Forti, A. C., Forti, F., Fortin, D., Foster, B., Foulkes, S. D., Fouque, G., Fox, J., Franchini, P., Sevilla, M. Franco, Franek, B., Frank, E. D., Fransham, K. B., Fratina, S., Fratini, K., Frey, A., Frey, R., Friedl, M., Fritsch, M., Fry, J. R., Fujii, H., Fujikawa, M., Fujita, Y., Fujiyama, Y., Fukunaga, C., Fukushima, M., Fullwood, J., Funahashi, Y., Funakoshi, Y., Furano, F., Furman, M., Furukawa, K., Futterschneider, H., Gabathuler, E., Gabriel, T. A., Gabyshev, N., Gaede, F., Gagliardi, N., Gaidot, A., Gaillard, J. -M., Gaillard, J. R., Galagedera, S., Galeazzi, F., Gallo, F., Gamba, D., Gamet, R., Gan, K. K., Gandini, P., Ganguly, S., Ganzhur, S. F., Gao, Y. Y., Gaponenko, I., Garmash, A., Tico, J. Garra, Garzia, I., Gaspero, M., Gastaldi, F., Gatto, C., Gaur, V., Geddes, N. I., Geld, T. L., Genat, J. -F., George, K. A., George, M., George, S., Georgette, Z., Gershon, T. J., Gill, M. S., Gillard, R., Gilman, J. D., Giordano, F., Giorgi, M. A., Giraud, P. -F., Gladney, L., Glanzman, T., Glattauer, R., Go, A., Goetzen, K., Goh, Y. M., Gokhroo, G., Goldenzweig, P., Golubev, V. B., Gopal, G. P., Gordon, A., Gorišek, A., Goriletsky, V. I., Gorodeisky, R., Gosset, L., Gotow, K., Gowdy, S. 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M., Zhulanov, V., Ziegler, T., Ziegler, V., Zioulas, G., Zisman, M., Zito, M., Zürcher, D., Zwahlen, N., Zyukova, O., Živko, T., and Žontar, D.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: This work is on the Physics of the B Factories. Part A of this book contains a brief description of the SLAC and KEK B Factories as well as their detectors, BaBar and Belle, and data taking related issues. Part B discusses tools and methods used by the experiments in order to obtain results. The results themselves can be found in Part C. Please note that version 3 on the archive is the auxiliary version of the Physics of the B Factories book. This uses the notation alpha, beta, gamma for the angles of the Unitarity Triangle. The nominal version uses the notation phi_1, phi_2 and phi_3. Please cite this work as Eur. Phys. J. C74 (2014) 3026., Comment: 928 pages, version 3 (arXiv:1406.6311v3) corresponds to the alpha, beta, gamma version of the book, the other versions use the phi1, phi2, phi3 notation
Published: 2014
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59. Measurements of the masses and widths of the $\Sigma_{c}(2455)^{0/++}$ and $\Sigma_{c}(2520)^{0/++}$ baryons

Author: Belle Collaboration, Lee, S. -H., Ko, B. R., Won, E., Abdesselam, A., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Ayad, R., Bakich, A. M., Bala, A., Bansal, V., Bhardwaj, V., Bhuyan, B., Bonvicini, G., Bozek, A., Browder, T. E., Červenkov, D., Chen, A., Cheon, B. G., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Hayashii, H., He, X. H., Hoshi, Y., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kang, J. H., Kawasaki, T., Kiesling, C., Kim, B. H., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, M. J., Kinoshita, K., Klucar, J., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumita, T., Kwon, Y. -J., Lange, J. S., Li, Y., Gioi, L. Li, Libby, J., Liventsev, D., Matvienko, D., Miyabayashi, K., Miyata, H., Moll, A., Mori, T., Mussa, R., Nagasaka, Y., Nakano, E., Nakao, M., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Park, H. K., Pedlar, T. K., Peng, T., Pestotnik, R., Petrič, M., Piilonen, L. E., Poluektov, A., Ribežl, E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sato, Y., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Sibidanov, A., Sohn, Y. -S., Solovieva, E., Stanič, S., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Uno, S., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Wagner, M. N., Wang, C. H., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We present measurements of the masses and decay widths of the baryonic states $\Sigma_{c}(2455)^{0/++}$ and $\Sigma_{c}(2520)^{0/++}$ using a data sample corresponding to an integrated luminosity of 711 fb$^{-1}$ collected with the Belle detector at the KEKB $e^{+}e^{-}$ asymmetric-energy collider operating at the $\Upsilon(4S)$ resonance. We report the mass differences with respect to the $\Lambda_{c}^{+}$ baryon $M(\Sigma_{c}(2455)^{0})-M(\Lambda_{c}^{+}) = 167.29\pm0.01\pm0.02$ MeV/$c^{2}$, $M(\Sigma_{c}(2455)^{++})-M(\Lambda_{c}^{+}) = 167.51\pm0.01\pm0.02$ MeV/$c^{2}$, $M(\Sigma_{c}(2520)^{0})-M(\Lambda_{c}^{+}) = 231.98\pm0.11\pm0.04$ MeV/$c^{2}$, $M(\Sigma_{c}(2520)^{++})-M(\Lambda_{c}^{+}) = 231.99\pm0.10\pm0.02$ MeV/$c^{2}$, and the decay widths $\Gamma(\Sigma_{c}(2455)^{0}) = 1.76\pm0.04^{+0.09}_{-0.21}$ MeV/$c^{2}$, $\Gamma(\Sigma_{c}(2455)^{++}) = 1.84\pm0.04^{+0.07}_{-0.20}$ MeV/$c^{2}$, $\Gamma(\Sigma_{c}(2520)^{0}) = 15.41\pm0.41^{+0.20}_{-0.32}$ MeV/$c^{2}$, $\Gamma(\Sigma_{c}(2520)^{++}) = 14.77\pm0.25^{+0.18}_{-0.30}$ MeV/$c^{2}$, where the first uncertainties are statistical and the second are systematic. The isospin mass splittings are measured to be $M(\Sigma_{c}(2455)^{++})-M(\Sigma_{c}(2455)^{0})=0.22\pm0.01\pm0.01$ MeV/$c^{2}$ and $M(\Sigma_{c}(2520)^{++})-M(\Sigma_{c}(2520)^{0})=0.01\pm0.15\pm0.03$ MeV/$c^{2}$. These results are the most precise to date., Comment: 13 pages, 4 figures, Submitted to PRD(RC)
Published: 2014

60. Measurement of ${D^{0}}$-${\overline{D}{}^{0}}$ Mixing and Search for Indirect $CP$ Violation Using ${D^0\to K_S^0\pi^+\pi^-}$ Decays

Author: Belle Collaboration, Abdesselam, A., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bakich, A. M., Bala, A., Bhardwaj, V., Bhuyan, B., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Cho, I. -S., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Frost, O., Gaur, V., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kang, J. H., Kato, E., Katrenko, P., Kawai, H., Kawasaki, T., Kichimi, H., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kronenbitter, B., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Lee, S. -H., Li, Y., Gioi, L. Li, Libby, J., Liu, C., Liu, Y., Liu, Z. Q., Liventsev, D., Lukin, P., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Pakhlov, P., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ribežl, E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seidl, R., Semmler, D., Senyo, K., Sevior, M. E., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Wehle, S., Williams, K. M., Won, E., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, C. C., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report a measurement of ${D^{0}}$-${\overline{D}{}^{0}}$ mixing parameters and a search for indirect $CP$ violation through a time-dependent amplitude analysis of ${D^0\to K_S^0\pi^+\pi^-}$ decays. The results are based on 921~fb$^{-1}$ of data accumulated with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. Assuming $CP$ conservation, we measure the mixing parameters $x=(0.56\pm0.19^{+0.03}_{-0.09}{^{+0.06}_{-0.09}})\%$ and $y=(0.30\pm0.15^{+0.04}_{-0.05}{^{+0.03}_{-0.06})}\%$, where the errors are statistical, experimental systematic, and systematic due to the amplitude model, respectively. With $CP$ violation allowed, the parameters $|q/p|=0.90^{+0.16}_{-0.15}{^{+0.05}_{-0.04}}{^{+0.06}_{-0.05}}$ and $\arg(q/p)=(-6\pm11{\pm3}{^{+3}_{-4}})^{\circ}$ are found to be consistent with conservation of $CP$ symmetry in mixing and in the interference between mixing and decay, respectively., Comment: submitted to PRD(RC)
Published: 2014
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61. Search for CP violation in D^0 -> pi^0 pi^0 decays

Author: Nisar, N. K., Trabelsi, K., Mohanty, G. B., Aziz, T., Abdesselam, A., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bahinipati, S., Bakich, A. M., Bala, A., Bansal, V., Behera, P., Belous, K., Bhardwaj, V., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Cheon, B. G., Chilikin, K., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Goh, Y. M., Golob, B., Hara, T., Hayashii, H., He, X. H., Hoshi, Y., Hou, W. -S., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Kang, J. H., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Gioi, L. Li, Libby, J., Liventsev, D., Lukin, P., Macek, B., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Moll, A., Mussa, R., Nakano, E., Nakao, M., Nayak, M., Nedelkovska, E., Nitoh, O., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pedlar, T. K., Peng, T., Pestotnik, R., Petrič, M., Piilonen, L. E., Ribežl, E., Ritter, M., Röhrken, M., Rostomyan, A., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Steder, M., Stypula, J., Sumiyoshi, T., Tatishvili, G., Teramoto, Y., Uchida, M., Uglov, T., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, Y., Williams, K. M., Won, E., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yook, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We search for CP violation in neutral charm meson decays using a data sample with an integrated luminosity of 966 fb^-1 collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. The asymmetry obtained in the rate of D^0 and D^0-bar decays to the pi^0 pi^0 final state, [-0.03+-0.64(stat)+-0.10(syst)]%, is consistent with no CP violation. This constitutes an order of magnitude improvement over the existing result. We also present an updated measurement of the CP asymmetry in the D^0 -> K_S pi^0 decay: A_{CP}(D^0 -> K_S pi^0) = [-0.21+-0.16(stat)+-0.07(syst)]%.
Published: 2014
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62. Amplitude analysis of e+e- => Y(nS)pi+pi- at sqrt(s)=10.865 GeV

Author: Garmash, A., Bondar, A., Kuzmin, A., Abdesselam, A., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bakich, A. M., Bala, A., Bhardwaj, V., Bobrov, A., Bonvicini, G., Bozek, A., Bracko, M., Browder, T. E., Cervenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Dolezal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Frost, O., Gaur, V., Ganguly, S., Gillard, R., Glattauer, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kang, J. H., Kato, E., Katrenko, P., Kawai, H., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodys, P., Korpar, S., Krizan, P., Krokovny, P., Kuhr, T., Kwon, Y. -J., Lee, S. -H., Li, Y., Gioi, L. Li, Libby, J., Liu, C., Liu, Z. Q., Liventsev, D., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Okuno, S., Ostrowicz, W., Pakhlov, P., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petric, M., Piilonen, L. E., Ribezl, E., Ritter, M., Rohrken, M., Rostomyan, A., Ryu, S., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Sanuki, T., Sato, Y., Schneider, O., Schnell, G., Schwartz, A. J., Semmler, D., Senyo, K., Sevior, M. E., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanic, S., Staric, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamamoto, H., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report results on studies of the e+e- annihilation into three-body Y(nS)pi+pi- (n=1,2,3) final states including measurements of cross sections and the full amplitude analysis. The cross sections measured at sqrt(s)=10.865 GeV and corrected for the initial state radiation are sigma(e+e-=>Y(1S)pi+pi-)=(2.27+-0.12+-0.14) pb, sigma(e+e-=>Y(2S)pi+pi-)=(4.07+-0.16+-0.45) pb, and sigma(e+e-=>Y(3S)pi+pi-)=(1.46+-0.09+-0.16) pb. Amplitude analysis of the three-body Y(nS)pi+pi- final states strongly favors I^G(J^P)=1^+(1^+) quantum-number assignments for the two bottomonium-like Zb+- states, recently observed in the Y(nS)pi+- and hb(mP)pi+- (m=1,2) decay channels. The results are obtained with a $121.4 1/fb data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider., Comment: 15 pages, 6 tables, 9 figures. To be submitted to Phys. Rev. D
Published: 2014
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63. Measurement of the Lepton Forward-Backward Asymmetry in $B \rightarrow X_s \ell^+ \ell^-$ Decays with a Sum of Exclusive Modes

Author: Sato, Y., Ishikawa, A., Yamamoto, H., Abdesselam, A., Adachi, I., Adamczyk, K., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bakich, A. M., Bala, A., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bra\v, M., Browder, T. E., \v, D., Chekelian, V., Chen, A., Cheon, B. G., Cho, I. -S., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Dole\v, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kang, J. H., Kato, E., Kato, Y., Kawai, H., Kawasaki, T., Kichimi, H., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kody\v, P., Korpar, S., Kri\v, P., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, S. -H., Li, Y., Libby, J., Liu, C., Liu, Y., Liu, Z. Q., Liventsev, D., Lukin, P., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Pakhlov, P., Park, H., Park, H. K., Pedlar, T. K., Peng, T., Pestotnik, R., Petri\v, M., Piilonen, L. E., Ribe\v, E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seidl, R., Semmler, D., Senyo, K., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stani\v, S., Stari\v, M., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vorobyev, V., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, Y., Won, E., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yook, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report the first measurement of the lepton forward-backward asymmetry ${\cal A}_{\rm FB}$ as a function of the squared four-momentum of the dilepton system, $q^2$, for the electroweak penguin process $B \rightarrow X_s \ell^+ \ell^-$ with a sum of exclusive final states, where $\ell$ is an electron or a muon and $X_s$ is a hadronic recoil system with an $s$ quark. The results are based on a data sample containing $772\times10^6$ $B\bar{B}$ pairs recorded at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB $e^+ e^-$ collider. ${\cal A}_{\rm FB}$ for the inclusive $B \rightarrow X_s \ell^+ \ell^-$ is extrapolated from the sum of 10 exclusive $X_s$ states whose invariant mass is less than 2 GeV/$c^2$. For $q^2 > 10.2$ GeV$^2$/$c^2$, ${\cal A}_{\rm FB} < 0$ is excluded at the 2.3$\sigma$ level, where $\sigma$ is the standard deviation. For $q^2 < 4.3$ GeV$^2$/$c^2$, the result is within 1.8$\sigma$ of the Standard Model theoretical expectation., Comment: 13 pages, 23 figures, Belle Preprint 2014-1, KEK preprint 2013-60
Published: 2014
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64. Updated Cross Section Measurement of $e^+ e^- \to K^+ K^- J/\psi$ and $K_S^0K_S^0J/\psi$ via Initial State Radiation at Belle

Author: Belle Collaboration, Shen, C. P., Yuan, C. Z., Wang, P., Abdesselam, A., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bakich, A. M., Bala, A., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Gaur, V., Ganguly, S., Gillard, R., Glattauer, R., Goh, Y. M., Golob, B., Haba, J., Hayasaka, K., Hayashii, H., He, X. H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Joffe, D., Julius, T., Kang, J. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuzmin, A., Kwon, Y. -J., Lee, S. -H., Li, J., Gioi, L. Li, Libby, J., Liu, C., Liu, Z. Q., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Moll, A., Mussa, R., Nagasaka, Y., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Okuno, S., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Saito, T., Sakai, Y., Sanuki, T., Sato, Y., Schneider, O., Schnell, G., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Uchida, M., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamamoto, H., Yamashita, Y., Yashchenko, S., Yook, Y., Zhang, C. C., Zhang, Z. P., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: The cross sections of the processes $e^+ e^- \to K^+ K^- J/\psi$ and $K_S^0K_S^0J/\psi$ are measured via initial state radiation at center-of-mass energies between the threshold and 6.0~GeV using a data sample of 980~fb$^{-1}$ collected with the Belle detector on or near the $\Upsilon(nS)$ resonances, where $n=$1, 2, ..., 5. The cross sections for $e^+ e^- \to K^+ K^- J/\psi$ are at a few pb level and the average cross section for $e^+ e^- \to K_S^0K_S^0J/\psi$ is $1.8\pm 0.6 (\rm stat.)\pm 0.3 (\rm syst.)$~pb between 4.4 and 5.2~GeV. All of them are consistent with previously published results with improved precision. A search for resonant structures and associated intermediate states in the cross section of the process $e^+ e^- \to K^+ K^- J/\psi$ is performed., Comment: 14 pages, 7 figures
Published: 2014
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65. Measurements of Branching Fractions of $\tau$ Lepton Decays with one or more $K^{0}_{S}$

Author: Belle Collaboration, Ryu, S., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bhuyan, B., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Dalseno, J., Doležal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Iijima, T., Inami, K., Ishikawa, A., Iwashita, T., Julius, T., Kato, E., Kiesling, C., Kim, B. H., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, S. K., Kim, Y. J., Ko, B. R., Kodyš, P., Križan, P., Krokovny, P., Kuhr, T., Kwon, Y. -J., Lee, S. -H., Li, J., Libby, J., Liventsev, D., Lukin, P., MacNaughton, J., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Moll, A., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nakazawa, H., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, Y., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Seon, O., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Uchida, M., Uehara, S., Unno, Y., Uno, S., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Watanabe, M., Watanabe, Y., Won, E., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report measurements of branching fractions of $\tau$ lepton decays to final states with a $K^{0}_{S}$ meson using a 669 fb$^{-1}$ data sample accumulated with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. The inclusive branching fraction is measured to be $\mathcal{B}(\tau^{-} \to K^{0}_{S}\ X^{-} \nu_{\tau})=(9.15 \pm 0.01 \pm 0.15) \times 10^{-3}$, where $X^{-}$ can be anything; the exclusive branching fractions are $\mathcal{B}(\tau^{-} \to \pi^{-} K^{0}_{S} \nu_{\tau}) = (4.16 \pm 0.01 \pm 0.08) \times 10^{-3}$, $\mathcal{B}(\tau^{-} \to K^{-} K^{0}_{S} \nu_{\tau}) = (7.40 \pm 0.07 \pm 0.27) \times 10^{-4}$, $\mathcal{B}(\tau^{-} \to \pi^{-} K^{0}_{S} \pi^{0} \nu_{\tau}) = (1.93 \pm 0.02 \pm 0.07) \times 10^{-3}$, $\mathcal{B}(\tau^{-} \to K^{-} K^{0}_{S} \pi^{0} \nu_{\tau}) = (7.48 \pm 0.10 \pm 0.37)\times 10^{-4}$, $\mathcal{B}(\tau^{-} \to \pi^{-} K^{0}_{S} K^{0}_{S} \nu_{\tau}) = (2.33 \pm 0.03 \pm 0.09) \times 10^{-4}$, $\mathcal{B}(\tau^{-} \to \pi^{-} K^{0}_{S} K^{0}_{S} \pi^{0} \nu_{\tau}) = (2.00 \pm 0.22 \pm 0.20) \times 10^{-5}$, where the first uncertainty is statistical and the second is systematic. For each mode, the accuracy is improved over that of pre-$B$-factory measurements by a factor ranging from five to ten. In $\tau^{-} \to \pi^{-} K^0_S K^0_S \pi^{0} \nu_{\tau}$ decays, clear signals for the intermediate states $\tau^{-} \to \pi^- f_{1}(1285)\nu_{\tau}$ and $\tau^{-} \to K^{*-}K^{0}_{S} \pi^{0} \nu_{\tau}$ are observed., Comment: 17 pages, 18 figures, submitted to Phys. Rev. D
Published: 2014
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66. Observation of $D^0-\bar{D}^0$ Mixing in $e^+e^-$ Collisions

Author: Ko, B. R., Won, E., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Bala, A., Bhardwaj, V., Bhuyan, B., Bobrov, A., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Dutta, D., Dutta, K., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Ganguly, S., Garmash, A., Gillard, R., Glattauer, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayashii, H., He, X. H., Higuchi, T., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Klucar, J., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Libby, J., Liu, C., Liu, Z. Q., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mohanty, G. B., Moll, A., Mussa, R., Nagasaka, Y., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Nitoh, O., Ogawa, S., Okuno, S., Pakhlova, G., Park, C. W., Park, H. K., Pedlar, T. K., Peng, T., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Sakai, Y., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seidl, R., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Sohn, Y. -S., Sokolov, A., Stanič, S., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, Y., Yamamoto, H., Yamashita, Y., Yashchenko, S., Yook, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We observe $D^0-\bar{D}^0$ mixing in the decay $D^0\rightarrow K^+\pi^-$ using a data sample of integrated luminosity 976 fb$^{-1}$ collected with the Belle detector at the KEKB $e^+e^-$ asymmetric-energy collider. We measure the mixing parameters ${x'}^2 = (0.09\pm0.22)\times 10^{-3}$ and $y' = (4.6\pm3.4)\times 10^{-3}$ and the ratio of doubly Cabibbo-suppressed to Cabibbo-favored decay rates $R_D = (3.53\pm0.13)\times 10^{-3}$, where the uncertainties are statistical and systematic combined. Our measurement excludes the no-mixing hypothesis at the 5.1 standard deviation level., Comment: 6 pages, 4 figures
Published: 2014
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67. Measurement of the Branching Fraction Br(Lambda_c+ -> p K- pi+)

Author: Zupanc, A., Bartel, C., Gabyshev, N., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Belous, K., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chang, M. -C., Chekelian, V., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Dutta, D., Dutta, K., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Feindt, M., Ferber, T., Gaur, V., Ganguly, S., Garmash, A., Gillard, R., Glattauer, R., Goh, Y. M., Golob, B., Haba, J., Hayasaka, K., Hayashii, H., He, X. H., Hoshi, Y., Hou, W. -S., Huschle, M., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kang, J. H., Kato, E., Kato, Y., Kawasaki, T., Kichimi, H., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kronenbitter, B., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, S. -H., Li, J., Li, Y., Libby, J., Liu, C., Liu, Y., Liu, Z. Q., Liventsev, D., MacNaughton, J., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakano, E., Nakao, M., Nakazawa, H., Natkaniec, Z., Nayak, M., Nedelkovska, E., Niiyama, M., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Olsen, S. L., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamamoto, H., Yamashita, Y., Yashchenko, S., Yook, Y., Zhang, Z. P., Zhilich, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment
Abstract: We present the first model-independent measurement of the absolute branching fraction of the Lambda_c+ -> p K- pi+ decay using a data sample of 978 fb^-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The number of Lambda_c+ baryons is determined by reconstructing the recoiling D(*)- anti-p pi+ system in events of the type e+e- -> D(*)- anti-p pi+ Lambda_c+. The branching fraction is measured to be Br(Lambda_c+ -> p K- pi+) = (6.84 +- 0.24^{+0.21}_{-0.27})%, where the first and second uncertainties are statistical and systematic, respectively.
Published: 2013
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68. Search for B0 to p Lambdabar pi- gamma at Belle

Author: Lai, Y. -T., Wang, M. -Z., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bhuyan, B., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Chang, P., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Cho, I. -S., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Doležal, Z., Drutskoy, A., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Gaur, V., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayashii, H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kang, J. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, H. O., Kim, J. H., Kim, M. J., Kim, Y. J., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumita, T., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Libby, J., Liu, Y., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Moll, A., Mussa, R., Nakano, E., Nakao, M., Nayak, M., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Onuki, Y., Ozaki, H., Pakhlova, G., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sato, Y., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Sohn, Y. -S., Solovieva, E., Stanič, S., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vossen, A., Wagner, M. N., Wang, C. H., Wang, P., Watanabe, Y., Williams, K. M., Won, E., Yamaoka, J., Yamashita, Y., Yashchenko, S., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We search for the charmless B^0 decay with final state particles p Lambdabar pi^- gamma using the full data sample that contains 772 * 10^6 B Bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+ e^- collider. This decay is predicted to proceed predominantly via the b to s gamma radiative penguin process with a high energy photon. No significant signal is found. We set an upper limit of 6.5 * 10^-7 for the branching fraction of B^0 to p Lambdabar pi^- gamma at the 90% confidence level., Comment: 13 pages, 2 figures, submitted to PRD
Published: 2013
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69. Search for doubly charmed baryons and study of charmed strange baryons at Belle

Author: Kato, Y., Iijima, T., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Bala, A., Ban, Y., Bhardwaj, V., Bhuyan, B., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayasaka, K., Hayashii, H., He, X. H., Horii, Y., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Inami, K., Ishikawa, A., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kang, J. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Krokovny, P., Kuhr, T., Kuzmin, A., Kwon, Y. -J., Lee, S. -H., Li, J., Li, Y., Gioi, L. Li, Libby, J., Liu, Y., Liventsev, D., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Moll, A., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakano, E., Nakao, M., Nayak, M., Nedelkovska, E., Ng, C., Niiyama, M., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Peng, T., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Seon, O., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamashita, Y., Yashchenko, S., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report results of a study of doubly charmed baryons and charmed strange baryons. The analysis is performed using a 980 fb^-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We search for doubly charmed baryons Xi_cc^+(+) with the Lambda_c^+K^-pi^+(pi^+) and Xi_c^0pi^+(pi^+) final states. No significant signal is observed. We also search for two excited charmed strange baryons, Xi_c(3055)^+ and Xi_c(3123)^+ with the Sigma_c^++(2455)K^- and Sigma_c^++(2520)K^- final states. The Xi_c(3055)^+ signal is observed with a significance of 6.6 standard deviations including systematic uncertainty, while no signature of the Xi_c(3123)^+ is seen. We also study properties of the Xi_c(2645)^+ and measure a width of 2.6 +- 0.2 (stat) +- 0.4 (syst) MeV/c^2, which is the first significant determination., Comment: 14 pages, 7 figures, PRD
Published: 2013
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70. Measurement of Branching Fractions and CP Asymmetries in B -> wK Decays and First Evidence of CP Violation in B0 -> wKS0

Author: Chobanova, V., Dalseno, J., Kiesling, C., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bala, A., Ban, Y., Belous, K., Bhuyan, B., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Choi, Y., Cinabro, D., Danilov, M., Doležal, Z., Drásal, Z., Dutta, D., Dutta, K., Eidelman, S., Esen, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayasaka, K., He, X. H., Horii, Y., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Inami, K., Ishikawa, A., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kang, J. H., Kato, E., Kawai, H., Kawasaki, T., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Krokovny, P., Kronenbitter, B., Kuhr, T., Kumita, T., Kuzmin, A., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Gioi, L. Li, Libby, J., Liventsev, D., Lukin, P., Matvienko, D., Miyabayashi, K., Miyake, H., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Peng, T., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, Y., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schwartz, A. J., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Stanič, S., Starič, M., Steder, M., Sumisawa, K., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamamoto, H., Yamashita, Y., Yashchenko, S., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We present a measurement of the branching fractions and charge-parity-(CP-) violating parameters in B -> omega K decays. The results are obtained from the final data sample containing 772 x 10^(6) BBbar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the branching fractions B(B0 -> omega K0) = (4.5 +/- 0.4 (stat) +/- 0.3 (syst)) x 10^(-6), B(B- -> omega K-) = (6.8 +/- 0.4 (stat) +/- 0.4 (syst)) x 10^(-6), which are in agreement with their respective current world averages. For the CP violating parameters, we obtain A(B0 -> omega KS) = -0.36 +/- 0.19 (stat) +/- 0.05 (syst), S(B0 -> omega KS) = +0.91 +/- 0.32 (stat) +/- 0.05 (syst), A(B- -> omega K-) = -0.03 +/- 0.04 (stat) +/- 0.01 syst), where A and S represent the direct and mixing-induced CP asymmetry, respectively. We find no evidence of CP violation in the decay channel B-->omega K-; however, we obtain the first evidence of CP violation in the B0 -> omega KS decay channel at the level of 3.1 standard deviations., Comment: 25 pages, 5 figures, Submitted to PRD
Published: 2013
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71. Search for the process $e^+e^-\to J/\psi + X(1835)$ at $\sqrt{s}\approx10.6$GeV

Author: Belle Collaboration, He, X. H., Wang, J., Ban, Y., Wang, P., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bonvicini, G., Bozek, A., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Choi, Y., Cinabro, D., Dalseno, J., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayashii, H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Ishikawa, A., Julius, T., Kang, J. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Lee, S. -H., Libby, J., Liu, Y., Liventsev, D., Matvienko, D., Miyata, H., Mizuk, R., Moll, A., Muramatsu, N., Mussa, R., Nakao, M., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlova, G., Park, H., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Senyo, K., Seon, O., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Sohn, Y. -S., Solovieva, E., Stanič, S., Starič, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Uchida, M., Uglov, T., Unno, Y., Van Hulse, C., Varner, G., Wang, C. H., Watanabe, Y., Yamashita, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report the results of a search for the $X(1835)$ state in the process $e^+e^-\to J/\psi+X(1835)$ using a data sample of 672 fb$^{-1}$ collected with the Belle detector at and near the $\Upsilon(4S)$ resonance at the KEKB asymmetric-energy $e^+e^-$ collider. No significant evidence is found for this process, and an upper limit is set on its cross section times the branching fraction: $\sigma_{\rm Born}(e^+e^- \to J/\psi X(1835)) \cdot$ {${\cal B}(X(1835)\to \ge 3$ charged tracks)} $< 1.3 \ {\rm fb}$ at 90% confidence level., Comment: submitted to PRD
Published: 2013
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72. Measurement of the $\tau$-lepton lifetime at Belle

Author: Belle Collaboration, Belous, K., Shapkin, M., Sokolov, A., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Bakich, A. M., Bala, A., Bhuyan, B., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Doležal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwashita, T., Jaegle, I., Julius, T., Kato, E., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, M. J., Kim, Y. J., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Libby, J., Liventsev, D., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nagasaka, Y., Nakano, E., Nakao, M., Nayak, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Ostrowicz, W., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Seon, O., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Stanič, S., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: The lifetime of the $\tau$-lepton is measured using the process $e^+e^-\rightarrow\tau^+\tau^-$, where both $\tau$-leptons decay to $3\pi\nu_\tau$. The result for the mean lifetime, based on $711\,\mathrm{fb}^{-1}$ of data collected with the Belle detector at the $\Upsilon(4S)$ resonance and $60\,\mathrm{MeV}$ below, is $\tau = (290.17 \pm 0.53(\mathrm{stat.}) \pm 0.33(\mathrm{syst.}))\cdot10^{-15}\,\mathrm{s}$. The first measurement of the lifetime difference between $\tau^+$ and $\tau^-$ is performed. The upper limit on the relative lifetime difference between positive and negative $\tau$-leptons is $|\Delta\tau| / \tau < 7.0 \times 10^{-3}$ at 90% CL., Comment: 17 pages, 4 figures. Submitted to Phys. Rev. Lett
Published: 2013
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73. Measurement of branching fractions for B \to J/\psi \eta K decays and search for a narrow resonance in the J/\psi \eta final state

Author: Belle Collaboration, Iwashita, T., Miyabayashi, K., Bhardwaj, V., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Bala, A., Bhuyan, B., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chang, M. -C., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Esen, S., Farhat, H., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Higuchi, T., Horii, Y., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Jaegle, I., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, Y., Libby, J., Liu, C., Liu, Y., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Moll, A., Mori, T., Nagasaka, Y., Nakano, E., Nakao, M., Nakazawa, H., Natkaniec, Z., Nayak, M., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Pakhlova, G., Panzenbock, E., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Rohrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanic, S., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Unno, Y., Uno, S., Urquijo, P., Vanhoefer, P., Varner, G., Varvell, K. E., Vorobyev, V., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report an observation of the $B^{\pm} \to J/\psi \eta K^{\pm}$ and $B^0 \to J/\psi \eta K^0_S$ decays using 772$\times 10^{6}$ $B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We obtain the branching fractions ${\cal B}(B^{\pm}\rightarrow J/\psi\eta K^{\pm})=(1.27\pm 0.11{\rm (stat.)\pm 0.11{\rm (syst.)})}\times10^{-4}$ and ${\cal B}(B^0\to J/\psi \eta K^0_S)=(5.22 \pm 0.78 {\rm(stat.)} \pm 0.49{\rm(syst.)})\times10^{-5}$. We search for a new narrow charmonium(-like) state $X$ in the $J/\psi \eta$ mass spectrum and find no significant excess. We set upper limits on the product of branching fractions, ${\cal B}(B^\pm \to XK^\pm){\cal B}(X \to J/\psi \eta)$, at 3872 MeV$/c^2$ where a $C$-odd partner of X(3872) may exist, at $\psi(4040)$ and $\psi(4160)$ assuming their known mass and width, and over a range from 3.8 to 4.8 GeV$/c^2$. % at a 5 MeV$/c^2$ step. The obtained upper limits at 90% confidence level for $X^{C{\rm -odd}}(3872)$, $\psi(4040)$ and $\psi(4160)$ are 3.8$\times 10^{-6}$, 15.5$\times 10^{-6}$ and 7.4$\times 10^{-6}$, respectively., Comment: Submitted to PTEP
Published: 2013
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74. Evidence for the suppressed decay B^- -> DK^-, D -> K^+\pi^-\pi^0

Author: Belle Collaboration, Nayak, M., Libby, J., Trabelsi, K., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Bala, A., Behera, P., Belous, K., Bhardwaj, V., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chang, M. -C., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Esen, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Iwashita, T., Jaegle, I., Julius, T., Kah, D. H., Kato, E., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Krishnan, P., Križan, P., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, S. -H., Li, J., Li, Y., Gioi, L. Li, Liu, Y., Liventsev, D., Lukin, P., Miyake, H., Mizuk, R., Mohanty, G. B., Moll, A., Mori, T., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakao, M., Nedelkovska, E., Negishi, K., Ng, C., Nisar, N. K., Nitoh, O., Ogawa, S., Okuno, S., Onuki, Y., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Pedlar, T. K., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Suzuki, Z., Tamponi, U., Tatishvili, G., Teramoto, Y., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Wagner, M. N., Wang, C. H., Wang, M. -Z., Watanabe, Y., Williams, K. M., Won, E., Yamashita, Y., Yashchenko, S., Yusa, Y., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report a study of the suppressed decay B^- -> DK^-, D -> K^+\pi^-\pi^0, where D denotes either a D^0 or a \bar{D}^0 meson. The decay is sensitive to the CP-violating parameter \phi_3. Using a data sample of 772 x 10^6 B\bar{B} pairs collected at the \Upsilon(4S) resonance with the Belle detector, we measure the ratio of branching fractions of the above suppressed decay to the favored decay B^- -> DK^-, D -> K^-\pi^+\pi^0. Our result is R_{DK} = [1.98 +/- 0.62(stat.) +/- 0.24(syst.)] x 10^{-2}, which indicates the first evidence of the signal for this suppressed decay with a significance of 3.2 standard deviations. We measure the direct CP asymmetry between the suppressed B^- and B^+ decays to be A_{DK} = 0.41 +/- 0.30 (stat.) +/- 0.05 (syst.). We also report measurements for the analogous quantities R_{D\pi} and A_{D\pi} for the decay B^- -> D\pi^-, D -> K^+\pi^-\pi^0., Comment: 7 pages, 3 figures, Accepted by Phys. Rev. D (Rapid Communications)
Published: 2013
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75. Measurement of the Decays $B^0_s\to J/\psi\,\phi(1020)$, $B^0_{s}\to J/\psi\,f'_2(1525)$ and $B^0_s\to J/\psi\,K^+K^-$ at Belle

Author: Belle Collaboration, Thorne, F., Schwanda, C., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bhuyan, B., Bonvicini, G., Bračko, M., Chang, M. -C., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Esen, S., Farhat, H., Fast, J. E., Feindt, M., Ferber, T., Gaur, V., Gabyshev, N., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kiesling, C., Kim, D. Y., Kim, H. O., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Klucar, J., Ko, B. R., Kodyš, P., Križan, P., Krokovny, P., Kuhr, T., Lange, J. S., Lee, S. -H., Libby, J., Liu, C., Liu, Y., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mori, T., Nagasaka, Y., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Ng, C., Nishida, S., Nitoh, O., Okuno, S., Oswald, C., Pakhlova, G., Park, H., Park, H. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Prim, M., Ritter, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Semmler, D., Senyo, K., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Uchida, M., Unno, Y., Uno, S., Urquijo, P., Varner, G., Varvell, K. E., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, Y., Williams, K. M., Won, E., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yuan, C. Z., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report a measurement of the branching fraction of the decay $B^0_s\to J/\psi\,\phi(1020)$, evidence and a branching fraction measurement for $B^0_s\to J/\psi\,f'_2(1525)$, and the determination of the total $B^0_s\to J/\psi\,K^+K^-$ branching fraction, including the resonant and non-resonant contributions to the $K^+K^-$ channel. We also determine the $S$-wave contribution within the $\phi(1020)$ mass region. The absolute branching fractions are $\mathcal{B}[B^0_s\to J/\psi\,\phi(1020)]=(1.25 \pm 0.07\left(\mathrm{stat}\right)\pm 0.08\left(\mathrm{syst}\right)\pm 0.22\left(f_s\right))\times 10^{-3}$, $\mathcal{B}[B^0_s\to J/\psi\,f'_2(1525)]=(0.26\pm 0.06\left(\mathrm{stat}\right)\pm 0.02\left(\mathrm{syst}\right) \pm 0.05\left(f_s\right))\times 10^{-3}$ and $\mathcal{B}[B^0_s\to J/\psi\,K^+K^-] = (1.01\pm 0.09\left(\mathrm{stat}\right) \pm 0.10\left(\mathrm{syst}\right)\pm 0.18\left(f_s\right))\times 10^{-3}$, where the last systematic error is due to the branching fraction of $b\bar{b}\to B^{(*)}_s B^{(*)}_s$. The branching fraction ratio is found to be $\mathcal{B}[B^0_s\to J/\psi\,f'_2(1525)]/\mathcal{B}[B^0_s\to J/\psi\,\phi(1020)]=(21.5\pm 4.9\left(\mathrm{stat}\right) \pm2.6\left(\mathrm{syst}\right))%$. All results are based on a 121.4 fb$^{-1}$ data sample collected at the $\Upsilon(5S)$ resonance by the Belle experiment at the KEKB asymmetric-energy $e^+e^-$ collider., Comment: 7 pages, 6 figures, 4 tables, accepted by Phys. Rev. D
Published: 2013

76. Measurement of $e^+ e^- \to \omega \pi^0$, $K^{\ast}(892)\bar{K}$ and $K_2^{\ast}(1430)\bar{K}$ at $\sqrt{s}$ near 10.6 GeV

Author: Belle Collaboration, Shen, C. P., Yuan, C. Z., Sibidanov, A., Wang, P., Hayasaka, K., Wang, X. L., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Bala, A., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chang, M. -C., Chen, A., Cheon, B. G., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayashii, H., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, Y. J., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, Y., Libby, J., Liu, C., Liu, Y., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Moll, A., Mori, T., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakao, M., Natkaniec, Z., Nayak, M., Ng, C., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Onuki, Y., Pakhlova, G., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Shapkin, M., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vossen, A., Wagner, M. N., Wang, C. H., Watanabe, Y., Williams, K. M., Won, E., Yamashita, Y., Yashchenko, S., Yook, Y., Zhang, C. C., Zhang, Z. P., and Zhilich, V.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: Using data samples of 89 fb$^{-1}$, 703 fb$^{-1}$, and 121 fb$^{-1}$ collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider at center-of-mass energies 10.52 GeV, 10.58 GeV, and 10.876 GeV, respectively, we study the exclusive reactions $e^+e^- \to \omega\pi^0$, $K^{\ast}(892)\bar{K}$, and $K_2^{\ast}(1430)\bar{K}$ (Charge-conjugate modes are included implicitly). Significant signals of $\omega\pi^0$, $K^{\ast}(892)^0\bar{K}^0$, and $K_2^{\ast}(1430)^-K^+$ are observed for the first time at these energies, and the energy dependencies of the cross sections are presented. On the other hand, no significant excesses for $K^{\ast}(892)^-K^+$ and $K_2^{\ast}(1430)^0 \bar{K}^0$ are found, and we set limits on the cross section ratios $R_{\rm VP} = \frac{\sigma_B(e^+e^-\to K^{\ast}(892)^0\bar K^0)} {\sigma_B(e^+e^-\to K^{\ast}(892)^-K^+)}>$ 4.3, 20.0, and 5.4, and $R_{\rm TP} = \frac{\sigma_B(e^+e^-\to K_2^{\ast}(1430)^0\bar K^0)} {\sigma_B(e^+e^-\to K_2^{\ast}(1430)^-K^+)}<$ 1.1, 0.4, and 0.6, for center-of-mass energies of 10.52 GeV, 10.58 GeV, and 10.876 GeV, respectively, at the 90% C.L., Comment: 17 pages, 4 figures; accepted for publication as a Regular Article in Physical Review D
Published: 2013
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77. First Observation of the Zb0(10610) in a Dalitz Analysis of Y(5S) -> Y(nS) pi0 pi0

Author: Krokovny, P., Bondar, A., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bala, A., Bay, A., Bhardwaj, V., Bhuyan, B., Bonvicini, G., Bookwalter, C., Bozek, A., Brachko, M., Browder, T. E., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Dingfelder, J., Dolezhal, Z., Drasal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayashii, H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawai, H., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. O., Kim, J. B., Kim, J. H., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodysh, P., Korpar, S., Kuhr, T., Kumita, T., Kuzmin, A., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Libby, J., Liu, Y., Liu, Z. Q., Liventsev, D., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakao, M., Nayak, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Oswald, C., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrich, M., Piilonen, L. E., Poluektov, A., Ritter, M., Roehrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanich, S., Starich, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, Y., Williams, K. M., Won, E., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Yusa, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report the first observation of Y(5S) -> Y(nS) pi0 pi0 decays. The neutral partner of the Zb+-(10610), the Zb0(10610) decaying to Y(2,3S) pi0, is observed for the first time with a 6.5 sigma significance using a Dalitz analysis of Y(5S) -> Y(2,3S) pi0 pi0 decays. The results are obtained with a 121.4 fb^-1 data sample collected with the Belle detector at the Y(5S) resonance at the KEKB asymmetric-energy e+e- collider., Comment: 10 pages, 7 tables, 5 figures, updated version, to appear in Phys. Rev. D
Published: 2013
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78. Angular analysis of $B^0 \to \phi K^{*}$ decays and search for CP violation at Belle

Author: Belle Collaboration, Prim, M., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Bala, A., Bhuyan, B., Bonvicini, G., Bozek, A., Bra\v, M., Browder, T. E., \v, D., Chang, M. -C., Chang, P., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Danilov, M., Dole\v, Z., Drásal, Z., Dutta, D., Eidelman, S., Farhat, H., Feindt, M., Ferber, T., Frey, A., Gaur, V., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Hayashii, H., Heider, M., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Jaegle, I., Julius, T., Kah, D. H., Kawai, H., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. O., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kody\v, P., Kri\v, P., Krokovny, P., Kronenbitter, B., Kuhr, T., Kumita, T., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Libby, J., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Mussa, R., Nakamura, I., Nakano, E., Nakao, M., Nayak, M., Nedelkovska, E., Niebuhr, C., Nisar, N. K., Nishida, S., Nitoh, O., Onuki, Y., Pakhlova, G., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petri\v, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Rozanska, M., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Sibidanov, A., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stari\v, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vorobyev, V., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamashita, Y., Yashchenko, S., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report the measurements of branching fractions and CP violation asymmetries in $B^0 \to \phi K^{*}$ decays obtained in an angular analysis using the full data sample of $772 \times 10^6 B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We perform a partial wave analysis to distinguish among scalar [$B^0 \to \phi(K\pi)^{*}_{0}$], vector [$B^0 \to \phi K^{*}(892)^{0}$] and tensor [$B^0 \to \phi K^{*}_{2}(1430)^{0}$] components, and determine the corresponding branching fractions to be $\mathcal{B}[B^0 \to \phi(K\pi)^{*}_{0}] = (4.3 \pm 0.4 \pm 0.4) \times 10^{-6}$, $\mathcal{B}[B^0 \to \phi K^{*}(892)^{0}] = (10.4 \pm 0.5 \pm 0.6) \times 10^{-6}$ and $\mathcal{B}[B^0 \to \phi K^{*}_{2}(1430)^{0}] = (5.5 ^{+0.9}_{-0.7} \pm 1.0) \times 10^{-6}$. We also measure the longitudinal polarization fraction $f_L$ in $B^0 \to \phi K^{*}(892)^{0}$ and $B^0 \to \phi K^{*}_{2}(1430)^{0}$ decays to be $0.499 \pm 0.030 \pm 0.018$ and $0.918 ^{+0.029}_{-0.060} \pm 0.012$, respectively. The first quoted uncertainties are statistical and the second are systematic. In total, we measure 26 parameters related to branching fractions, polarization and CP violation in the $B^0 \to \phi K^{*}$ system. No evidence for CP violation is found., Comment: 15 pages, 6 figures, to be submitted to PRD
Published: 2013
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79. High-statistics study of K^0_S pair production in two-photon collisions

Author: The Belle Collaboration, Uehara, S., Watanabe, Y., Nakazawa, H., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Dingfelder, J., Doležal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Giordano, F., Goh, Y. M., Golob, B., Haba, J., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawai, H., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. O., Kim, J. B., Kim, J. H., Kim, Y. J., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, S. -H., Li, J., Li, Y., Liu, C., Liu, Z. Q., Liventsev, D., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Moll, A., Mori, T., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakao, M., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seidl, R., Senyo, K., Seon, O., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Van Hulse, C., Varner, G., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Williams, K. M., Won, E., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Yusa, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report a high-statistics measurement of the differential cross section of the process gamma gamma --> K^0_S K^0_S in the range 1.05 GeV <= W <= 4.00 GeV, where W is the center-of-mass energy of the colliding photons, using 972 fb^{-1} of data collected with the Belle detector at the KEKB asymmetric-energy e^+ e^- collider operated at and near the Upsilon-resonance region. The differential cross section is fitted by parameterized S-, D_0-, D_2-, G_0- and G_2-wave amplitudes. In the D_2 wave, the f_2(1270), a_2(1320) and f_2'(1525) are dominant and a resonance, the f_2(2200), is also present. The f_0(1710) and possibly the f_0(2500) are seen in the S wave. The mass, total width and product of the two-photon partial decay width and decay branching fraction to the K bar{K} state Gamma_{gamma gamma}B(K bar{K}) are extracted for the f_2'(1525), f_0(1710), f_2(2200) and f_0(2500). The destructive interference between the f_2(1270) and a_2(1320) is confirmed by measuring their relative phase. The parameters of the charmonium states chi_{c0} and chi_{c2} are updated. Possible contributions from the chi_{c0}(2P) and chi_{c2}(2P) states are discussed. A new upper limit for the branching fraction of the P- and CP-violating decay channel eta_c --> K^0_S K^0_S is reported. The detailed behavior of the cross section is updated and compared with QCD-based calculations., Comment: 35 pages, 32 figures, 17 tables
Published: 2013
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80. Measurements of branching fractions of leptonic and hadronic Ds+ meson decays and extraction of the Ds+ meson decay constant

Author: Zupanc, A., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aushev, T., Bakich, A. M., Bala, A., Bhuyan, B., Bonvicini, G., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, M. -C., Chang, P., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kato, E., Kawai, H., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. O., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kronenbitter, B., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Libby, J., Liu, Z. Q., Liventsev, D., Lukin, P., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakano, E., Nakao, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Prim, M., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Semmler, D., Senyo, K., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uglov, T., Uno, S., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Won, E., Yamashita, Y., Yashchenko, S., Zhang, Z. P., Zhilich, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment
Abstract: We present measurements of absolute branching fractions of hadronic and leptonic Ds+ decays to K- K+ pi+, anti-K0 K+, eta pi+, mu+ nu_mu and tau+ nu_tau and report a search for the leptonic Ds+ to e+ nu_e decays. The results are obtained from a data sample of 913 fb^-1 collected at or near the Y(4S) and Y(5S) resonances with the Belle detector at the KEKB asymmetric-energy e+e- collider. The branching fractions of hadronic decays are measured to be Br(Ds+ -> K- K+ pi+) = (5.06 +- 0.15 +- 0.21)%, Br(Ds+ -> anti-K0 K+) = (2.95 +- 0.11 +- 0.09)%, and Br(Ds+ -> eta pi+) = (1.82 +- 0.14 +- 0.07)%, where the first and second uncertainties are statistical and systematic, respectively. The branching fractions of leptonic decays are measured to be Br(Ds+ -> mu+ nu_mu) = (0.531 +- 0.028 +- 0.020)%, and Br(Ds+ -> tau+ nu_tau) = (5.70 +- 0.21 +0.31-0.30)%, which are combined to determine the Ds+ meson decay constant f_Ds = (255.5 +- 4.2 +- 5.1) MeV. We find no significant signal for Ds+ -> e+ nu_e decays and set an upper limit of Br(Ds+ -> e+ nu_e) < 1.0 (0.83) x 10^-4 at 95% (90%) confidence level., Comment: 31 pages, 9 figures
Published: 2013
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81. Measurement of the Wrong-Sign Decay D0 -> K+ pi- pi+ pi-

Author: Belle Collaboration, White, E., Schwartz, A. J., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bhardwaj, V., Bhuyan, B., Bonvicini, G., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dingfelder, J., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Epifanov, D., Esen, S., Farhat, H., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Hara, T., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kiesling, C., Kim, D. Y., Kim, H. O., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kronenbitter, B., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Gioi, L. Li, Libby, J., Liu, C., Liu, Y., Liventsev, D., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Oswald, C., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Uchida, M., Uehara, S., Unno, Y., Uno, S., Vahsen, S. E., Van Hulse, C., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, Y., Williams, K. M., Won, E., Yamashita, Y., Yashchenko, S., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: A measurement of the rate for the "wrong-sign" decay D0 -> K+ pi- pi+ pi- relative to that for the "right-sign" decay D0 -> K- pi+ pi+ pi- is presented. Using 791 fb-1 of data collected with the Belle detector, we obtain a branching fraction ratio of R_WS = [0.324 +- 0.008 (stat) +- 0.007 (sys)]%. Multiplying this ratio by the world average value for the branching fraction B(D0 -> K- pi+ pi+ pi-) gives a branching fraction B(D0 -> K+ pi- pi+ pi-) = (2.61 +- 0.06 +0.09 -0.08) x 10-4., Comment: 14 pages, 1 figure, 1 table, submitted to Physical Review D
Published: 2013
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82. Search for Bottomonium States in Exclusive Radiative Upsilon(2S) Decays

Author: Belle Collaboration, Sandilya, S., Trabelsi, K., Mohanty, G. B., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Bala, A., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Dingfelder, J., Doležal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawai, H., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. O., Kim, J. B., Kim, J. H., Kim, Y. J., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Liu, Z. Q., Liventsev, D., Lukin, P., MacNaughton, J., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Moll, A., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakao, M., Nayak, M., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Oswald, C., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Semmler, D., Senyo, K., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Wiechczynski, J., Williams, K. M., Won, E., Yabsley, B. D., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yuan, C. Z., Yusa, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We search for bottomonium states in Upsilon(2S)-> (bb-bar) gamma decays with an integrated luminosity of 24.7fb^-1 recorded at the Upsilon(2S) resonance with the Belle detector at KEK, containing (157.8+-3.6) X 10^6 Upsilon(2S) events. The (bb-bar) system is reconstructed in 26 exclusive hadronic final states composed of charged pions, kaons, protons, and K^0_S mesons. We find no evidence for the state recently observed around 9975 MeV (X_(bb-bar)) in an analysis based on a data sample of 9.3 X 10^6 Upsilon(2S) events collected with the CLEO III detector. We set a 90 % confidence-level upper limit on the branching fraction B[Upsilon(2S)-> X_(bb-bar) gamma] X \sum_i{B[X_(bb-bar)-> h_i]}< 4.9 X 10^-6, summed over the exclusive hadronic final states employed in our analysis. This result is an order of magnitude smaller than the measurement reported with CLEO data. We also set an upper limit for the eta_b(1S) state of B[Upsilon(2S)-> eta_b(1S) gamma] X \sum_i{B[eta_b(1S)-> h_i]}< 3.7 X 10^-6.
Published: 2013
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83. First Observation of Cabibbo-Suppressed \Xi_c^0 Decays

Author: Belle Collaboration, Chistov, R., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Cho, I. -S., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Danilov, M., Doležal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Libby, J., Liu, C., Liu, Y., Liventsev, D., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mori, T., Muramatsu, N., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Ng, C., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Oswald, C., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yook, Y., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report the first observation of the Cabibbo-suppressed decays $\Xi_c^0\rightarrow \Xi^- K^+$, $\Xi_c^0\ra\Lambda K^+ K^-$ and $\Xi_c^0\rightarrow \Lambda \phi$, using a data sample of $711\, \mathrm{fb}^{-1}$ collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We measure the ratios of branching fractions to be $\frac{{\cal B}(\Xi_c^0\ra \Xi^- K^+)}{{\cal B}(\Xi^0_c\ra\Xi^-\pi^+)}=(2.75\pm 0.51\pm 0.25)\times 10^{-2}$, $\frac{{\cal B}(\Xi_c^0\ra\Lambda K^+ K^-)}{{\cal B}(\Xi_c^0\rightarrow\Xi^- \pi^+)}=(2.86\pm 0.61\pm 0.24)\times 10^{-2}$ and $\frac{{\cal B}(\Xi_c^0\ra \Lambda\phi)}{{\cal B}(\Xi^0_c\ra\Xi^-\pi^+)}=(3.43\pm 0.58\pm 0.32)\times 10^{-2}$, where the first uncertainty is statistical and the second is systematic., Comment: 8 pages, 6 figures, submitted to PRD(RC)
Published: 2013
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84. Experimental constraints on the spin and parity of the Z(4430)+

Author: Belle Collaboration, Chilikin, K., Mizuk, R., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bala, A., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Libby, J., Liu, C., Liu, Y., Liventsev, D., Lukin, P., MacNaughton, J., Matvienko, D., Miyabayashi, K., Miyata, H., Mohanty, G. B., Moll, A., Mori, T., Muramatsu, N., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Oswald, C., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamamoto, H., Yamashita, Y., Yashchenko, S., Yook, Y., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We perform a full amplitude analysis of B0 -> psi' K+ pi- decays, with psi' -> mu+ mu- or e+ e-, to constrain the spin and parity of the Z(4430)-. The J^P=1+ hypothesis is favored over the 0-, 1-, 2- and 2+ hypotheses at the levels of 3.4 sigma, 3.7 sigma, 4.7 sigma and 5.1 sigma, respectively. The analysis is based on a 711 fb^-1 data sample that contains 772x10^6 B B pairs, collected at the Y(4S) resonance by the Belle detector at the asymmetric-energy e+ e- collider KEKB., Comment: 13 pages, 14 figures
Published: 2013
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85. Evidence for Semileptonic B- to p pbar l nubar Decays

Author: Tien, K. -J., Wang, M. -Z., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bhuyan, B., Bozek, A., Bračko, M., Browder, T. E., Chang, P., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Huschle, M., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, Y. J., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kronenbitter, B., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, S. -H., Li, J., Li, Y., Libby, J., Liu, C., Liu, Y., Liventsev, D., Lukin, P., Miyabayashi, K., Miyata, H., Mohanty, G. B., Moll, A., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Ostrowicz, W., Oswald, C., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Sibidanov, A., Sohn, Y. -S., Sokolov, A., Stanič, S., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tanida, K., Tatishvili, G., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamaoka, J., Yamashita, Y., Yashchenko, S., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We find evidence for the semileptonic baryonic decay $B^-\to p\bar p\ell^-\bar\nu_\ell$ ($\ell=e,\mu$), based on a data sample of 772 million $B\bar B$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy electron-positron collider. A neural-network based hadronic $B$-meson tagging method is used in this study. The branching fraction of $B^-\to p\bar p\ell^-\bar\nu_\ell$ is measured to be $(5.8^{+2.4}_{-2.1}\textrm{(stat.)}\pm 0.9\textrm{(syst.)})\times 10^{-6}$ with a significance of 3.2$\sigma$, where lepton universality is assumed. We also estimate the corresponding upper limit: $\mathcal{B}(B^-\to p\bar p\ell^-\bar\nu_\ell) < 9.6\times 10^{-6}$ at the 90% confidence level. This measurement helps constrain the baryonic transition form factor in B decays., Comment: 12 pages, 4 figures, submitted to Phys.Rev.Lett
Published: 2013
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86. Study of Exclusive B->X_u l nu Decays and Extraction of |V_{ub}| using Full Reconstruction Tagging at the Belle Experiment

Author: Belle Collaboration, Sibidanov, A., Varvell, K. E., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bozek, A., Bračko, M., Browder, T. E., Chekelian, V., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I. -S., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Dingfelder, J., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Gaur, V., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayashii, H., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, Y. J., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kronenbitter, B., Kuhr, T., Kuzmin, A., Kwon, Y. -J., Lee, S. -H., Li, J., Li, Y., Libby, J., Liu, Y., Liventsev, D., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mohanty, G. B., Moll, A., Mussa, R., Nagasaka, Y., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Nozaki, T., Ogawa, S., Okuno, S., Olsen, S. L., Oswald, C., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Smerkol, P., Sohn, Y. -S., Solovieva, E., Stanič, S., Starič, M., Steder, M., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamashita, Y., Yashchenko, S., Yook, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report the results of a study of the exclusive semileptonic decays B->pi0lnu, B->pi+lnu, B->rho0lnu, B->rho+lnu and B->omegalnu, where l represents an electron or a muon. The events are tagged by fully reconstructing a second B meson in the event in a hadronic decay mode. The measured branching fractions are Br(B->pi0lnu) = (0.80 +- 0.08 +- 0.04)x10^-4, Br(B->pi+lnu) = (1.49 +- 0.09 +- 0.07)x10^-4, Br(B->rho0lnu) = (1.83 +- 0.10 +- 0.10)x10^-4, Br(B->rho+lnu) = (3.22 +- 0.27 +- 0.24)x10^-4, and Br(B->omegalnu) =(1.07 +- 0.16 +- 0.07)x10^-4, where the first error is statistical and the second one is systematic. The obtained branching fractions are inclusive of soft photon emission. We also determine the branching fractions as a function of the 4-momentum transfer squared to the leptonic system q^2=(p_l+p_nu)^2, where p_l and p_nu are the lepton and neutrino 4-momenta, respectively. Using the pion modes, a recent LCSR calculation, lattice QCD results and a model-independent description of the hadronic form factor, a value of the CKM matrix element |V_{ub}| = (3.52 +- 0.29)x10^-3 is extracted. For the first time, a charmless state with invariant mass greater than 1 GeV/c^2, which might be dominated by the decay B->f2lnu, is observed. These results are obtained from a 711 1/fb data sample that contains 772 millions BB pairs, collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+ e^- collider., Comment: To be submitted to PRD
Published: 2013
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87. Measurement of exclusive $\Upsilon(1S)$ and $\Upsilon(2S)$ decays into Vector-Pseudoscalar final states

Author: Belle Collaboration, Shen, C. P., Yuan, C. Z., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Bakich, A. M., Bala, A., Bhuyan, B., Bischofberger, M., Bozek, A., Bračko, M., Browder, T. E., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Cho, I. -S., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Dingfelder, J., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, S. -H., Leitner, R., Li, J., Li, Y., Libby, J., Liu, C., Liu, Y., Liu, Z. Q., Liventsev, D., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mohanty, G. B., Moll, A., Mori, T., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Ostrowicz, W., Pakhlov, P., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Peng, T., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Senyo, K., Seon, O., Shapkin, M., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Tsuboyama, T., Uchida, M., Uehara, S., Unno, Y., Uno, S., Urquijo, P., Van Hulse, C., Vanhoefer, P., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Won, E., Yamamoto, H., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yook, Y., Yusa, Y., Zhang, C. C., Zhang, Z. P., and Zupanc, A.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: Using samples of 102 million $\Upsilon(1S)$ and 158 million $\Upsilon(2S)$ events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to $\ks K^+ \pi^-$ and charge-conjugate (c.c.) states, $\pi^+ \pi^- \pi^0 \pi^0$, and $\pi^+ \pi^- \pi^0$, and to the two-body Vector-Pseudoscalar ($K^{\ast}(892)^0\bar{K}^0+ {\rm c.c.}$, $K^{\ast}(892)^-K^+ + {\rm c.c.}$, $\omega\pi^0$, and $\rho\pi$) final states. For the first time, signals are observed in the modes $\Upsilon(1S) \to \ks K^+ \pi^- + {\rm c.c.}$, $\pi^+ \pi^- \pi^0 \pi^0$, and $\Upsilon(2S) \to \pi^+ \pi^- \pi^0 \pi^0$, and evidence is found for the modes $\Upsilon(1S)\to \pi^+ \pi^- \pi^0$, $K^{\ast}(892)^0 \bar{K}^0+ {\rm c.c.}$, and $\Upsilon(2S) \to \ks K^+ \pi^- + {\rm c.c.}$ Branching fractions are measured for all the processes, while 90% confidence level upper limits on the branching fractions are also set for the modes with a statistical significance of less than $3\sigma$. The ratios of the branching fractions of $\Upsilon(2S)$ and $\Upsilon(1S)$ decays into the same final state are used to test a perturbative QCD prediction for OZI-suppressed bottomonium decays., Comment: 8 pages, 3 figures, 2 tables, accepted for publication as a Rapid Communication in Physical Review D
Published: 2013
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88. Evidence for B_s^0 -> Lambda_c^+ Lambda-bar pi^-

Author: Belle Collaboration, Solovieva, E., Chistov, R., Adachi, I., Asner, D. M., Aushev, T., Bakich, A. M., Bala, A., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Huschle, M., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. O., Kim, J. B., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Kouzes, R. T., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Liventsev, D., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Mohanty, G. B., Mussa, R., Nakano, E., Nakao, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Prothmann, K., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Senyo, K., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Singh, J. B., Smerkol, P., Sohn, Y. -S., Sokolov, A., Stanič, S., Starič, M., Sumihama, M., Tamponi, U., Tanaka, S., Tanida, K., Tatishvili, G., Teramoto, Y., Tikhomirov, I., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Varner, G., Varvell, K. E., Vinokurova, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamashita, Y., Yashchenko, S., Yook, Y., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: Using 121.4 fb^{-1} of data collected with the Belle detector at the Y(5S) resonance at the KEKB asymmetric-energy e^+e^- collider, we report evidence for the B_s^0 -> Lambda_c^+ Lambda-bar pi^- decay mode with a measured branching fraction (3.6 +- 1.1[stat.] {+0.3 -0.5}[syst.] +- 0.9[Lambda_c^+] +- 0.7[N_{Bs}]) * 10^{-4} and a significance of 4.4 standard deviations. This is the first evidence for a baryonic B_s^0 decay., Comment: 10 pages, 9 figures
Published: 2013
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89. Evidence for the decay B0 --> K+K-pi0

Author: The Belle Collaboration, Gaur, V., Mohanty, G. B., Aziz, T., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Belous, K., Bhardwaj, V., Bhuyan, B., Bonvicini, G., Bozek, A., Bracko, M., Browder, T. E., Chang, P., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Dolezal, Z., Drasal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Farhat, H., Feindt, M., Ferber, T., Frey, A., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kawasaki, T., Kiesling, C., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodys, P., Korpar, S., Krizan, P., Kumar, R., Kumita, T., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Libby, J., Liu, C., Liventsev, D., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Muramatsu, N., Mussa, R., Nakano, E., Nakao, M., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Onuki, Y., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petric, M., Piilonen, L. E., Ritter, M., Rohrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Sibidanov, A., Simon, F., Singh, J. B., Sinha, R., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Staric, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamashita, Y., Yashchenko, S., Yusa, Y., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: We report a search for charmless hadronic decays of neutral B mesons to the final state K+K-pi0. The results are based on a 711 fb^-1 data sample that contains 772x10^6 BB-bar pairs, and was collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find the first evidence for this decay with a significance of 3.5 standard deviations and measure its branching fraction as BF(B0 --> K+K-pi0) = [2.17 +/- 0.60(stat) +/- 0.24 (syst)]x10^-6., Comment: 7 pages, 6 figures, published in Phys. Rev. D
Published: 2013
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90. Evidence of a new narrow resonance decaying to $\chi_{c1}\gamma$ in $B \to \chi_{c1} \gamma K$

Author: Belle Collaboration, Bhardwaj, V., Miyabayashi, K., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bala, A., Bhuyan, B., Bischofberger, M., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwashita, T., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Liu, C., Liu, Z. Q., Liventsev, D., Lukin, P., Matvienko, D., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Panzenböck, E., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, K., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seidl, R., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Singh, J. B., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vinokurova, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Won, E., Yabsley, B. D., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, C. C., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report measurements of $B \to \chi_{c1} \gamma K$ and $\chi_{c2} \gamma K$ decays using $772 \times 10^{6}$ $B\bar{B}$ events collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. Evidence of a new resonance in the $\chi_{c1} \gamma$ final state is found with a statistical significance of $3.8 \sigma$. This state has a mass of $3823.1 \pm 1.8 {(stat)} \pm 0.7 {(syst)}$ MeV/$c^2$, a value that is consistent with theoretical expectations for the previously unseen $1^3 D_2$ $c\bar{c}$ meson. We find no other narrow resonance and set upper limits on the branching fractions of the $X(3872) \to \chi_{c1} \gamma$ and $\chi_{c2} \gamma$ decays., Comment: 7 pages, 4 figures
Published: 2013
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91. Study of $e^+ e^- \to \pi^+ \pi^- J/\psi$ and Observation of a Charged Charmonium-like State at Belle

Author: Belle Collaboration, Liu, Z. Q., Shen, C. P., Yuan, C. Z., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Bala, A., Belous, K., Bhuyan, B., Bischofberger, M., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, P., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayasaka, K., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Joffe, D., Julius, T., Kah, D. H., Kang, J. H., Kawasaki, T., Kiesling, C., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Li, Y., Libby, J., Liu, C., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Onuki, Y., Ostrowicz, W., Oswald, C., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seidl, R., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumihama, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Won, E., Yabsley, B. D., Yamaoka, J., Yamashita, Y., Yashchenko, S., Yook, Y., Yusa, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: The cross section for $e^+ e^- \to \pi^+ \pi^- J/\psi$ between 3.8 GeV and 5.5 GeV is measured with a 967 fb$^{-1}$ data sample collected by the Belle detector at or near the $\Upsilon(nS)$ ($n = 1,\ 2,\ ...,\ 5$) resonances. The Y(4260) state is observed, and its resonance parameters are determined. In addition, an excess of $\pi^+ \pi^- J/\psi$ production around 4 GeV is observed. This feature can be described by a Breit-Wigner parameterization with properties that are consistent with the Y(4008) state that was previously reported by Belle. In a study of $Y(4260) \to \pi^+ \pi^- J/\psi$ decays, a structure is observed in the $M(\pi^\pm\jpsi)$ mass spectrum with $5.2\sigma$ significance, with mass $M=(3894.5\pm 6.6\pm 4.5) {\rm MeV}/c^2$ and width $\Gamma=(63\pm 24\pm 26)$ MeV/$c^{2}$, where the errors are statistical and systematic, respectively. This structure can be interpreted as a new charged charmonium-like state., Comment: 10 pages, 5 figures, 2 tables, accepted by Phys. Rev. Lett
Published: 2013
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92. Search for B -> h(*) nu nubar with the full Belle Y(4S) data sample

Author: Lutz, O., Neubauer, S., Heck, M., Kuhr, T., Zupanc, A., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Aziz, T., Bakich, A. M., Belous, K., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chang, P., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Feindt, M., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kang, J. H., Kapusta, P., Kato, E., Kawasaki, T., Kiesling, C., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Kouzes, R. T., Križan, P., Krokovny, P., Kronenbitter, B., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, Y., Liu, C., Liu, Y., Liventsev, D., Matvienko, D., Miyabayashi, K., Miyata, H., Mohanty, G. B., Moll, A., Müller, T., Muramatsu, N., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Ng, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Onuki, Y., Oswald, C., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Prim, M., Ritter, M., Röhrken, M., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sato, Y., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Sumihama, M., Sumiyoshi, T., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, J., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamamoto, H., Yamashita, Y., Zhang, Z. P., Zhilich, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment
Abstract: We report a search for the rare decays B -> h(*) nu nubar, where h(*) stands for K+, Ks0, K*+, K*0, pi+, pi0, rho+, rho0 and phi. The results are obtained from a 711 fb-1 data sample that contains 772 million BB pairs collected at the Y(4S) resonance with the Belle detector at the KEKB e+e- collider. We search for signal candidates by fully reconstructing a hadronic decay of the accompanying B meson and requiring a single h(*) meson left on the signal side. No significant signal is observed and we set upper limits on the branching fractions at 90% confidence level. The measurements of B+ -> K*+ nu nubar, B+ -> pi+ nu nubar, B0 -> pi0 nu nubar and B0 -> rho^0 nu nubar provide the world's currently most restrictive limits.
Published: 2013
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93. Measurement of the CP Violation Parameters in B0 -> pi+ pi- Decays

Author: Belle Collaboration, Dalseno, J., Prothmann, K., Kiesling, C., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bay, A., Behera, P., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Danilov, M., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Dutta, K., Eidelman, S., Farhat, H., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Gaur, V., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Higuchi, T., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kato, E., Kawai, H., Kawasaki, T., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kronenbitter, B., Kuzmin, A., Kwon, Y. -J., Lee, S. -H., Li, J., Li, Y., Gioi, L. Li, Libby, J., Liu, C., Liventsev, D., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Mori, T., Moser, H. -G., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakao, M., Nayak, M., Nedelkovska, E., Ng, C., Niebuhr, C., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Solovieva, E., Stanič, S., Starič, M., Steder, M., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamamoto, H., Yamashita, Y., Yashchenko, S., Yook, Y., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We present a measurement of the time-dependent charge-parity (CP) violation parameters in B0 -> pi+ pi- decays. The results are obtained from the final data sample containing 772 million BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the CP violation parameters Acp = +0.33 +/- 0.06 (stat) +/- 0.03 (syst) and Scp = -0.64 +/- 0.08 (stat) +/- 0.03 (syst), where Acp and Scp represent the direct and mixing-induced CP asymmetry, respectively. Using an isospin analysis including results from other Belle measurements, we find 23.8 < phi2 < 66.8 degrees is disfavored at the 1 sigma level, where phi2 is one of the three interior angles of the CKM unitarity triangle related to B_{u,d} decays., Comment: 16 pages, 5 figures, CKM2012 conference paper, Submitted to PRD
Published: 2013
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94. Precision measurement of charged pion and kaon differential cross sections in electron-positron annihilation at Q = 10.52 GeV

Author: Belle Collaboration, Leitgab, M., Seidl, R., Perdekamp, M. Grosse, Vossen, A., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bhuyan, B., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dalseno, J., Drásal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Gaur, V., Gabyshev, N., Gillard, R., Giordano, F., Goh, Y. M., Golob, B., Haba, J., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Hsiung, Y. B., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Jacobs, W. W., Julius, T., Kang, J. H., Kapusta, P., Kato, E., Kawasaki, T., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, M. J., Klucar, J., Ko, B. R., Kodyš, P., Kouzes, R. T., Križan, P., Krokovny, P., Kumar, R., Kumita, T., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, Y., Liu, Z. Q., Liventsev, D., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Moll, A., Muramatsu, N., Nakano, E., Nakao, M., Natkaniec, Z., Nayak, M., Nedelkovska, E., Ng, C., Nellikunnummel, N., Nitoh, O., Ogawa, A., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Oswald, C., Pakhlov, P., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Röhrken, M., Sahoo, H., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Schneider, O., Schnell, G., Schwanda, C., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Sumihama, M., Sumiyoshi, T., Tatishvili, G., Teramoto, Y., Tsuboyama, T., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Varner, G., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, J., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamashita, Y., Zhilich, V., and Zhulanov, V.
Subjects: High Energy Physics - Experiment
Abstract: Measurements of inclusive differential cross sections for charged pion and kaon production in electron-positron annihilation have been carried out at a center-of-mass energy of Q = 10.52 GeV. The measurements were performed with the Belle detector at the KEKB electron-positron collider using a data sample containing 113 million e+e- -> qqbar events, where q={u,d,s,c}. We present charge-integrated differential cross sections d\sigma_h+-/dz for h+- = pi+-, K+- as a function of the relative hadron energy z = 2*E_h / sqrt{s} from 0.2 to 0.98. The combined statistical and systematic uncertainties for pi+- (K+-) are 4% (4%) at z ~ 0.6 and 15% (24%) at z ~ 0.9. The cross sections are the first measurements of the z-dependence of pion and kaon production for z > 0.7 as well as the first precision cross section measurements at a center-of-mass energy far below the Z^0 resonance used by the experiments at LEP and SLC., Comment: 7 pages, 3 figures. Ancillary file including all cross section and uncertainty values with 10 pages, 5 figures
Published: 2013
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95. Search for heavy neutrinos at Belle

Author: Belle Collaboration, Liventsev, D., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bay, A., Belous, K., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bracko, M., Browder, T. E., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Dolezal, Z., Drasal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Epifanov, D., Esen, S., Farhat, H., Fast, J. E., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayasaka, K., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itagaki, K., Itoh, R., Iwasaki, Y., Julius, T., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, H. J., Kim, H. O., Kim, J. B., Kim, K. T., Kim, M. J., Kim, Y. J., Klucar, J., Ko, B. R., Korpar, S., Kouzes, R. T., Krizan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lee, S. -H., Li, J., Li, Y., Libby, J., Liu, C., Liu, Y., Liu, Z. Q., Louvot, R., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Nagasaka, Y., Nakano, E., Nakao, M., Natkaniec, Z., Nisar, N. K., Nishida, S., Nitoh, O., Nozaki, T., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Ostrowicz, W., Oswald, C., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petric, M., Piilonen, L. E., Prothmann, K., Ritter, M., Rohrken, M., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sato, Y., Schneider, O., Schnell, G., Schwanda, C., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Staric, M., Sumihama, M., Sumiyoshi, T., Tatishvili, G., Teramoto, Y., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Ushiroda, Y., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamamoto, H., Yamashita, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report on a search for heavy neutrinos in B-meson decays. The results are obtained using a data sample that contains 772x10^6 BB-bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. No signal is observed and upper limits are set on mixing of heavy neutrinos with left-handed neutrinos of the Standard Model in the mass range 0.5 - 5.0 GeV/c^2., Comment: 12 pages, 5 figures, published in PRD (RC); Erratum: 2 pages, 3 figures; upper limit calculation revised
Published: 2013
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96. Measurement of the inclusive semileptonic branching fraction $\mathcal{B}(B_s^0 \rightarrow X^- \ell^+ \nu_\ell)$ at Belle

Author: Belle Collaboration, Oswald, C., Urquijo, P., Dingfelder, J., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aushev, T., Bakich, A. M., Belous, K., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chang, P., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, D., Eidelman, S., Esen, S., Farhat, H., Fast, J. E., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hayasaka, K., Hayashii, H., Horii, Y., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Kah, D. H., Kang, J. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, H. J., Kim, H. O., Kim, J. B., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Korpar, S., Kouzes, R. T., Križan, P., Krokovny, P., Kronenbitter, B., Kuhr, T., Kumita, T., Kwon, Y. -J., Lee, S. -H., Li, J., Li, Y., Libby, J., Liu, C., Liu, Y., Liu, Z. Q., Liventsev, D., Louvot, R., Lutz, O., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Nagasaka, Y., Nakano, E., Nakao, M., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Nozaki, T., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Prim, M., Prothmann, K., Ritter, M., Röhrken, M., Rozanska, M., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Sumiyoshi, T., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Van Hulse, C., Vanhoefer, P., Varner, G., Varvell, K. E., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamamoto, H., Yamashita, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We report a measurement of the inclusive semileptonic $B_s^0$ branching fraction in a $121~fb^{-1}$ data sample collected near the $\Upsilon(5S)$ resonance with the Belle detector at the KEKB asymmetric energy $e^+ e^-$ collider. Events containing $B_s^0$ pairs are selected by reconstructing a tag side $D_s^+$ and identifying a signal side lepton $\ell^+$ ($\ell = e, \mu$) that is required to have the same-sign charge to ensure that both originate from different $B_s^0$ mesons. The $B_s^0 \rightarrow X^- \ell^+ \nu_\ell$ branching fraction is extracted from the ratio of the measured yields of $D_s^+$ mesons and $D_s^+ \ell^+$ pairs and the known production and branching fractions. The inclusive semileptonic branching fraction is measured to be $[9.6 \pm 0.4\text{(stat)} \pm 0.7\text{(syst)}]~\%$., Comment: Updated results after correction of an error concerning semileptonic B_s decays in the Belle EvtGen installation. Details can be found in the attached Erratum
Published: 2012
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97. Search for CP Violation in the Decay $D^+\rightarrow K^0_S K^+$

Author: Ko, B. R., Won, E., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aushev, T., Bakich, A. M., Belous, K., Bhardwaj, V., Bhuyan, B., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Doležal, Z., Dutta, D., Eidelman, S., Esen, S., Farhat, H., Fast, J. E., Gaur, V., Gabyshev, N., Ganguly, S., Gillard, R., Goh, Y. M., Golob, B., Hayasaka, K., Hayashii, H., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Iwasaki, Y., Julius, T., Kang, J. H., Kato, E., Kiesling, C., Kim, H. O., Kim, J. B., Kim, K. T., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Korpar, S., Kouzes, R. T., Križan, P., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Li, Y., Liu, C., Liventsev, D., Louvot, R., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Nagasaka, Y., Nakano, E., Nakao, M., Nedelkovska, E., Ng, C., Nellikunnummel, N., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Oswald, C., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Prothmann, K., Ritter, M., Röhrken, M., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Sibidanov, A., Simon, F., Smerkol, P., Sohn, Y. -S., Solovieva, E., Starič, M., Sumiyoshi, T., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uglov, T., Unno, Y., Uno, S., Van Hulse, C., Vanhoefer, P., Varner, G., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, Y., Williams, K. M., Yamashita, Y., Zhang, C. C., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We search for CP violation in the decay $D^+\rightarrow K^0_S K^+$ using a data sample with an integrated luminosity of 977 fb$^{-1}$ collected with the Belle detector at the KEKB $e^+e^-$ asymmetric-energy collider. No CP violation has been observed and the CP asymmetry in $D^+\rightarrow K^0_S K^+$ decay is measured to be $(-0.25\pm0.28\pm0.14)%$, which is the most sensitive measurement to date. After subtracting CP violation due to $K^0-\bar{K}^0$ mixing, the CP asymmetry in $D^+\rightarrow\bar{K}^0 K^+$ decay is found to be $(+0.08\pm0.28\pm0.14)%$., Comment: 15 pages, 4 figures, 1 table. Published in JHEP
Published: 2012
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98. Study of B^0 -> rho^0 rho^0 decays, implications for the CKM angle phi_2 and search for other B^0 decay modes with a four-pion final state

Author: The Belle Collaboration, Vanhoefer, P., Dalseno, J., Kiesling, C., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bhardwaj, V., Bhuyan, B., Bonvicini, G., Bozek, A., Braçko, M., Browder, T. E., Chang, M. -C., Chang, P., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Doleczal, Z., Draśal, Z., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Hara, T., Hayasaka, K., Hayashii, H., Higuchi, T., Horii, Y., Hoshi, Y., Hou, W. -S., Hyun, H. J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Iwashita, T., Jaegle, I., Julius, T., Kah, D. H., Kato, E., Kawai, H., Kawasaki, T., Kim, D. Y., Kim, H. O., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Korpar, S., Kriczan, P., Krokovny, P., Kronenbitter, B., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, S. -H., Li, J., Gioi, L. Li, Libby, J., Liu, C., Liu, Y., Liventsev, D., Lukin, P., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Moser, H. -G., Mussa, R., Nakano, E., Nakao, M., Natkaniec, Z., Nedelkovska, E., Nisar, N. K., Nishida, S., Nitoh, O., Ogawa, S., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Park, H. K., Pedlar, T. K., Pestotnik, R., Petriç, M., Piilonen, L. E., Ritter, M., Röhrken, M., Rostomyan, A., Ryu, S., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Sato, Y., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Semmler, D., Senyo, K., Seon, O., Sevior, M. E., Shapkin, M., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stariç, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tatishvili, G., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Unno, Y., Uno, S., Vahsen, S. E., Van Hulse, C., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, Y., Williams, K. M., Won, E., Yamashita, Y., Yashchenko, S., Yook, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We present a study of the branching fraction of the decay B^0->rho0rho0 and the fraction of longitudinally polarized rho0 mesons in this decay. The results are obtained from the final data sample containing 772 million BBbar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find 166 +- 59 B^0 -> rho0 rho0 events (including systematic uncertainties), corresponding to a branching fraction of B(B^0->rho0rho0) = (1.02 +- 0.30 (stat) +- 0.15 (syst)) x 10^{-6} with a significance of 3.4 standard deviations and a longitudinal polarization fraction fL = 0.21^{+0.18}_{-0.22} (stat) +- 0.15 (syst). We use the longitudinal polarization fraction to determine the Cabibbo-Kobayashi-Maskawa matrix angle phi_2 = (84.9 +- 13.5) degrees through an isospin analysis in the B->rhorho system. We furthermore find 149 +- 49 B^0->f0rho0 events, corresponding to B(B^0->f0rho0) x B(f0->pi+pi-) = (0.78 +- 0.22 (stat) +- 0.11 (syst)) x 10^{-6}, with a significance of 3.1 standard deviations. We find no other significant contribution with the same final state, and set upper limits at 90% confidence level on the (product) branching fractions, B(B^0->pi+pi-pi+pi-)<11.2 x 10^{-6}, B(B^0->rho0pi+pi-)<12.0 x 10^{-6}, B(B^0->f0pi+pi-) x B(f0->pi+pi-) <3.0 x 10^{-6} and B(B^0->f0f0) x B(f0->pi+pi-)^{2} < 0.2 x 10^{-6}., Comment: 21 pages, 20 figures, conference paper for the 2012th CKM workshop, submitted to PRD
Published: 2012
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99. Observation of \psi(4040) and \psi(4160) decay into \eta J/\psi

Author: Belle Collaboration, Wang, X. L., Han, Y. L., Yuan, C. Z., Shen, C. P., Wang, P., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Aziz, T., Bakich, A. M., Ban, Y., Bhuyan, B., Bonvicini, G., Bozek, A., Bracko, M., Brodzicka, J., Brovchenko, O., Browder, T. E., Chen, P., Cheon, B. G., Cho, K., Choi, S. -K., Choi, Y., Dalseno, J., Dolezal, Z., Drásal, Z., Eidelman, S., Esen, S., Farhat, H., Fast, J. E., Gaur, V., Gillard, R., Goh, Y. M., Golob, B., Hayashii, H., Hoshi, Y., Hou, W. -S., Hyun, H. J., Inami, K., Ishikawa, A., Iwabuchi, M., Kang, J. H., Kapusta, P., Kim, H. J., Kim, H. O., Kim, J. B., Kim, J. H., Kim, M. J., Kim, Y. J., Kinoshita, K., Klucar, J., Ko, B. R., Kodys, P., Kouzes, R. T., Krizan, P., Krokovny, P., Kumita, T., Lange, J. S., Lee, S. -H., Li, J., Libby, J., Liu, C., Liu, Z. Q., Lukin, P., McOnie, S., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Mussa, R., Nakao, M., Nishida, S., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Pakhlova, G., Park, H., Pedlar, T. K., Pestotnik, R., Petric, M., Piilonen, L. E., Prothmann, K., Sahoo, H., Sakai, Y., Sandilya, S., Santel, D., Sanuki, T., Schneider, O., Schwanda, C., Senyo, K., Sevior, M. E., Shapkin, M., Shibata, T. -A., Shiu, J. -G., Sibidanov, A., Simon, F., Smerkol, P., Sohn, Y. -S., Solovieva, E., Stanic, S., Staric, M., Sumiyoshi, T., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uehara, S., Unno, Y., Uno, S., Usov, Y., Vanhoefer, P., Varner, G., Wang, C. H., Wang, J., Wang, M. -Z., Williams, K. M., Won, E., Yamashita, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: The cross section for e^+e^- \to \eta J/\psi between \sqrt{s}=3.8 GeV/c^2 and 5.3 GeV/c^2 is measured via initial state radiation using 980 fb^{-1} of data on and around the \Upsilon(nS)(n=1,2,3,4,5) resonances collected with the Belle detector at KEKB. Two resonant structures at the \psi(4040) and \psi(4160) are observed in the \eta J/\psi invariant mass distribution. Fitting the mass spectrum with the coherent sum of two Breit-Wigner functions, one obtains BR(\psi(4040)\to\eta J/\psi)\cdot\Gamma_{ee}^{\psi(4040)} = (4.8\pm0.9\pm1.4) eV and BR(\psi(4160)\to\eta J/\psi)\cdot\Gamma_{ee}^{\psi(4160)} = (4.0\pm0.8\pm1.4) eV for one solution and BR(\psi(4040)\to\eta J/\psi)\cdot\Gamma_{ee}^{\psi(4040)} = (11.2\pm1.3\pm1.9) eV and BR(\psi(4160)\to\eta J/\psi)\cdot\Gamma_{ee}^{\psi(4160)} = (13.8\pm1.3\pm2.0) eV for the other solution, where the first errors are statistical and the second are systematic. This is the first measurement of this hadronic transition mode of these two states, and the partial widths to \eta J/\psi are found to be about 1 MeV. There is no evidence for the Y(4260), Y(4360), \psi(4415), or Y(4660) in the \eta J/\psi final state, and upper limits of their production rates in e^+e^- annihilation are determined.
Published: 2012
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100. Study of the Hadronic Transitions $\Upsilon$(2S)$\rightarrow (\eta,\pi^0)\Upsilon$(1S) at Belle

Author: Belle Collaboration, Tamponi, U., Mussa, R., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Barrett, M., Bhuyan, B., Bondar, A., Bozek, A., Bra\v, M., Browder, T. E., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Cho, I. -S., Cho, K., Choi, Y., Dalseno, J., Dole\v, Z., Drásal, Z., Dutta, D., Eidelman, S., Epifanov, D., Esen, S., Farhat, H., Fast, J. E., Frey, A., Gaur, V., Gillard, R., Goh, Y. M., Golob, B., Hayasaka, K., Horii, Y., Hoshi, Y., Hyun, H. J., Iijima, T., Ishikawa, A., Iwasaki, Y., Jaegle, I., Kang, J. H., Kawasaki, T., Kim, H. O., Kim, J. H., Kim, K. T., Kim, M. J., Kim, Y. J., Klucar, J., Ko, B. R., Kody\v, P., Korpar, S., Kouzes, R. T., Kri\v, P., Krokovny, P., Kumita, T., Kuzmin, A., Lee, S. -H., Li, Y., Liu, C., Liu, Y., Liu, Z. Q., Liventsev, D., Miyata, H., Mizuk, R., Mohanty, G. B., Moll, A., Muramatsu, N., Nakao, M., Natkaniec, Z., Ng, C., Nishida, S., Nitoh, O., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Onuki, Y., Pakhlov, P., Park, H. K., Park, K. S., Pedlar, T. K., Pestotnik, R., Petri\v, M., Piilonen, L. E., Röhrken, M., Sakai, Y., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Schneider, O., Schnell, G., Schwanda, C., Senyo, K., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Smerkol, P., Sohn, Y. -S., Sokolov, A., Solovieva, E., Stari\v, M., Sumiyoshi, T., Tanida, K., Taniguchi, N., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uehara, S., Uno, S., Van Hulse, C., Vanhoefer, P., Varner, G., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yabsley, B. D., Yamashita, Y., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhulanov, V., and Zupanc, A.
Subjects: High Energy Physics - Experiment
Abstract: We study the rare hadronic transitions $\Upsilon(2S)\rightarrow \Upsilon(1S)\eta$ and $\Upsilon(2S)\rightarrow \Upsilon(1S)\pi^0$ using a sample of 158 $\times 10^6$ $\Upsilon(2S)$ decays collected with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We observe the $\eta$ meson decay to $\gamma\gamma$ and $\pi^+\pi^-\pi^0$ final states; the $\Upsilon(1S)$ is reconstructed in the $\mu^+\mu^-$ and $e^+e^-$ decay modes. We measure the ratios of branching fractions (${\mathcal B}$) $\frac{{\mathcal B}(\Upsilon(2S)\rightarrow\Upsilon(1S)\eta)}{{\mathcal B}(\Upsilon(2S)\rightarrow\Upsilon(1S)\pi^+\pi^-)}$ = (1.99$\pm$0.14 (stat) $\pm$0.11 (syst)) $\times 10^{-3}$ and $\frac{{\mathcal B}(\Upsilon(2S)\rightarrow\Upsilon(1S)\pi^0)}{{\mathcal B}(\Upsilon(2S)\rightarrow\Upsilon(1S)\pi^+\pi^-)} < 2.3 \times 10^{-4}$ at the 90% confidence level (CL). Assuming the value ${\mathcal B}(\Upsilon(2S) \rightarrow \Upsilon(1S)\pi^-\pi^+)$ = (17.92$\pm$0.26)%, we obtain $ {\mathcal B}(\Upsilon(2S)\rightarrow\Upsilon(1S)\eta) = (3.57 \pm 0.25 ({\rm stat})\ \pm 0.21 ({\rm syst}))\times 10^{-4} $ and $ {\mathcal B}(\Upsilon(2S)\rightarrow\Upsilon(1S)\pi^0) < 4.1\times 10^{-5}\ ({\rm 90%\ CL}). $, Comment: 6 pages, 6 figures, submitted to PRD(RC)
Published: 2012
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