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2. Track Finding at Belle II

Author

Bertacchi, Valerio, Bilka, Tadeas, Braun, Nils, Casarosa, Giulia, Corona, Luigi, Cunliffe, Sam, Dattola, Filippo, De Marino, Gaetano, De Nuccio, Michael, De Pietro, Giacomo, Van Dong, Thanh, Dujany, Giulio, Ecker, Patrick, Eliachevitch, Michael, Fillinger, Tristan, Frost, Oliver, Fruehwirth, Rudolf, Gebauer, Uwe, Glazov, Alexander, Gosling, Nicolas, Guo, Aiqiang, Hauth, Thomas, Heck, Martin, Kaleta, Mateusz, Kandra, Jakub, Kleinwort, Claus, Kuhr, Thomas, Kurz, Simon, Kvasnicka, Peter, Lettenbichler, Jakob, Lueck, Thomas, Martini, Alberto, Metzner, Felix, Neverov, Dmitrii, Niebuhr, Carsten, Paoloni, Eugenio, Patra, Sourav, Piilonen, Leo, Praz, Cyrille, Prim, Markus Tobias, Pulvermacher, Christian, Racs, Sebastian, Rad, Navid, Rados, Petar, Ritter, Martin, Rizzo, Giuliana, Rostomyan, Armine, Scavino, Bianca, Schlueter, Tobias, Schwenker, Benjamin, Spataro, Stefano, Spruck, Bjoern, Svidras, Henrikas, Tenchini, Francesco, Uematsu, Yuma, Webb, James, Wessel, Christian, and Zani, Laura

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

This paper describes the track-finding algorithm that is used for event reconstruction in the Belle II experiment operating at the SuperKEKB B-factory in Tsukuba, Japan. The algorithm is designed to balance the requirements of a high efficiency to find charged particles with a good track parameter resolution, a low rate of spurious tracks, and a reasonable demand on CPU resources. The software is implemented in a flexible, modular manner and employs a diverse selection of global and local track-finding algorithms to achieve an optimal performance.

Published
2020
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3. Implementation of GENFIT2 as an experiment independent track-fitting framework

Author

Bilka, Tadeas, Braun, Nils, Hauth, Thomas, Kuhr, Thomas, Lavezzi, Lia, Metzner, Felix, Paul, Stephan, Prencipe, Elisabetta, Prim, Markus, Rauch, Johannes, Ritman, James, Schlueter, Tobias, and Spataro, Stefano

Subjects
Physics - Data Analysis, Statistics and Probability, Physics - Instrumentation and Detectors
Abstract

The GENFIT toolkit, initially developed at the Technische Universitaet Muenchen, has been extended and modified to be more general and user-friendly. The new GENFIT, called GENFIT2, provides track representation, track-fitting algorithms and graphic visualization of tracks and detectors, and it can be used for any experiment that determines parameters of charged particle trajectories from spacial coordinate measurements. Based on general Kalman filter routines, it can perform extrapolations of track parameters and covariance matrices. It also provides interfaces to Millepede II for alignment purposes, and RAVE for the vertex finder. Results of an implementation of GENFIT2 in basf2 and PandaRoot software frameworks are presented here., Comment: 41 pages 24 figures, 1 table. Paper submitted to NIM

Published
2019

4. B2BII - Data conversion from Belle to Belle II

Author

Gelb, Moritz, Keck, Thomas, Prim, Markus, Atmacan, Hulya, Gemmler, Jochen, Itoh, Ryosuke, Kronenbitter, Bastian, Kuhr, Thomas, Lubej, Matic, Metzner, Felix, Park, Chanseok, Park, Seokhee, Pulvermacher, Christian, Ritter, Martin, and Zupanc, Anze

Subjects
High Energy Physics - Experiment, Physics - Data Analysis, Statistics and Probability
Abstract

We describe the conversion of simulated and recorded data by the Belle experiment to the Belle~II format with the software package \texttt{b2bii}. It is part of the Belle~II Analysis Software Framework. This allows the validation of the analysis software and the improvement of analyses based on the recorded Belle dataset using newly developed analysis tools.

Published
2018
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5. The Full Event Interpretation -- An exclusive tagging algorithm for the Belle II experiment

Author

Keck, Thomas, Abudinen, Fernandi, Bernlochner, Florian U., Cheaib, Racha, Cunliffe, Sam, Feindt, Michael, Ferber, Torben, Gelb, Moritz, Gemmler, Jochen, Goldenzweig, Pablo, Heck, Martin, Hollitt, Sohpie, Kahn, James, Krohn, Jo-Frederik, Kuhr, Thomas, Komarov, Ilya, Ligioi, Luigi, Lubej, Matic, Metzner, Felix, Prim, Markus, Pulvermacher, Christian, Ritter, Martin, Schwab, Judith, Sutcliffe, William, Tamponi, Umberto, Tenchini, Francesco, Toutounji, Nadia E., Urquijo, Phillip, Weyland, Denis, and Zupanc, Anze

Subjects
High Energy Physics - Experiment
Abstract

The Full Event Interpretation is presented: a new exclusive tagging algorithm used by the high-energy physics experiment Belle II. The experimental setup of Belle II allows the precise measurement of otherwise inaccessible $B$ meson decay-modes. The Full Event Interpretation algorithm enables many of these measurements. The algorithm relies on machine learning to automatically identify plausible $B$ meson decay chains based on the data recorded by the detector. Compared to similar algorithms employed by previous experiments, the Full Event Interpretation provides a greater efficiency, yielding a larger effective sample size usable in the measurement., Comment: 11 pages, 7 figures, 1 table

Published
2018
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10. A SAM-key domain required for enzymatic activity of the Fun30 nucleosome remodeler

Author

Karl, Leonhard A, primary, Galanti, Lorenzo, additional, Bantele, Susanne CS, additional, Metzner, Felix, additional, Šafarić, Barbara, additional, Rajappa, Lional, additional, Foster, Benjamin, additional, Pires, Vanessa Borges, additional, Bansal, Priyanka, additional, Chacin, Erika, additional, Basquin, Jerôme, additional, Duderstadt, Karl E, additional, Kurat, Christoph F, additional, Bartke, Till, additional, Hopfner, Karl-Peter, additional, and Pfander, Boris, additional

Published
2023
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13. Measurement of the $\Omega_c^0$ lifetime at Belle II

Author

Abudinen, Fernando Jesus, Adachi, Ichiro, Aggarwal, Latika, Ahmed, Hossain, Aihara, Hiroaki, Akopov, Norayr, Aloisio, Alberto, Nguyen, Anh-Ky, Asner, David Mark, Aushev, Tagir, Aushev, Volodymyr Ye, Bae, Hanwook, Bambade, Philip, Banerjee, Sw., Banerjee, Swagato, Baudot, Jerome, Bauer, Moritz, Beaubien, Alexandre, Becker, Juergen, Behera, Prafulla Kumar, Bennett, Jake, Bernieri, Enrico, Bernlochner, Florian, Bertacchi, Valerio, Bertemes, Michel, Bertholet, Emilie, Bessner, Martin, Bettarini, Stefano, Bhuyan, Bipul, Bianchi, Fabrizio, Bilka, Tadeas, Biswas, Diptaparna, Bodrov, Denis, Bolz, Arthur, Borah, Jyotirmoi, Bozek, Andrzej, Bracko, Marko, Branchini, Paolo, Briere, R. A., Browder, Thomas Earl, Budano, Antonio, Bussino, Severino, Campajola, Marcello, Cao, Lu, Casarosa, Giulia, Cecchi, Claudia, Chang, Ming-Chuan, Cheema, Priyanka, Chekelian, Vladimir, Chen, Yongqing, Chilikin, Kirill, Chirapatpimol, Khem, Cho, HanEol, Cho, Kihyeon, Cho, Sungjin, Choi, Sookyung, Choudhury, Seema, Cinabro, David, Corona, Luigi, Cunliffe, Samuel Thomas, Das, Sanjeeda Bharati, Dattola, Filippo, De La Cruz Burelo, Eduard, De La Motte, Shanette Anne, de Marino, Gaetano, De Nardo, Guglielmo, De Nuccio, Michael, De Pietro, Giacomo, de Sangro, Riccardo, Destefanis, Marco, Dey, Sourav, De Yta Hernandez, Alejandro, Dhamija, Rashmi, Di Canto, Angelo, Di Capua, Francesco, Dingfelder, Jochen, Dolezal, Zdenek, Dominguez Jimenez, Isabel, Dong, Thanh Van, Dorigo, Mirco, Dort, Katharina, Dreyer, Sascha, Dubey, Shawn, Dujany, Giulio, Ecker, Patrick, Eliachevitch, Michael, Epifanov, Denis Alexandrovich, Feichtinger, Paul, Ferber, Torben, Ferlewicz, Daniel, Fillinger, Tristan, Finocchiaro, Giuseppe, Fodor, Andrea, Forti, Francesco, Fulsom, Bryan Gregory, Ganiev, Eldar, Gaur, Vipin, Gaz, Alessandro, Gellrich, Andreas, Ghevondyan, Gayane, Giordano, Raffaele, Giri, Anjan, Glazov, Alexander, Gobbo, Benigno, Godang, Romulus, Goldenzweig, Pablo, Gradl, Wolfgang, Granderath, Svenja Katharina, Graziani, Enrico, Greenwald, Daniel, Gu, Tianping, Guan, Yinghui, Gudkova, Kristina, Guilliams, Justin, Hayasaka, Kiyoshi, Hayashii, Hisaki, Hazra, Sagar, Hearty, Christopher, Heredia de la Cruz, Ivan, Hernandez Villanueva, Michel, Hershenhorn, Alon David, Higuchi, Takeo, Hill, Ewan Chin, Hirata, Hikari, Hohmann, Marcel, Hsu, Chia-Ling, Iijima, Toru, Inami, Kenji, Inguglia, Gianluca, Ipsita, N. Sushree, Ishikawa, Akimasa, Ito, Shintaro, Itoh, Ryosuke, Iwasaki, Masako, Jackson, Paul Douglas, Jacobs, William Wescott, Jaffe, David, Jang, Eunji, Jia, Sen, Jin, Yifan, Joo, Kyung Kwang, Junkerkalefeld, Henrik, Kaliyar, Abdul Basith, Kang, Kookhyun, Karl, Robert, Karyan, Gevorg, Kiesling, Christian, Kim, Cheolhun, Kim, Doris Yangsoo, Kim, Kyungho, Kim, Yongkyu, Kindo, Haruki, Kinoshita, Kay, Kodys, Peter, Koga, Taichiro, Kohani, Shahab, Kojima, Kazuki, Konno, Tomoyuki, Korobov, Alexandr, Korpar, Samo, Kovalenko, Evgeniy, Kowalewski, Robert, Kraetzschmar, Thomas Michael Gerd, Krizan, Peter, Krokovny, Pavel, Kumar, Jitendra, Kumara, Kospalage Janaka, Kunigo, Takuto, Kuzmin, Alexander, Kwon, Youngjoon, Lacaprara, Stefano, Lam, Tommy, Lanceri, Livio, Lange, Jens Soeren, Laurenza, Martina, Lautenbach, Klemens, Leboucher, Robin, Li, Chunhua, Li, Longke, Libby, James Frederick, Lieret, Kilian Adriano, Liptak, Zachary John, Liu, Qingyuan, Liventsev, Dmitri, Longo, Savino, Lozar, Andrej, Lueck, Thomas, Lyu, Chaoyi, Maggiora, Marco, Maiti, Rajesh Kumar, Manfredi, Riccardo, Manoni, Elisa, Marcello, Simonetta, Marinas, Carlos, Martini, Alberto, Martinov, Tommy, Massaccesi, Ludovico, Masuda, Masataka, Maurya, Shubhangi Krishan, McKenna, Janis Anne, Meier, Frank, Merola, Mario, Metzner, Felix, Milesi, Marco, Miller, Caleb, Miyabayashi, Kenkichi, Mizuk, Roman, Mohanty, G. B., Molina-Gonzalez, N., Molina, Norman Wilfrido, Moneta, Stefano, Moser, Hans-Guenther, Mrvar, Manca, Mussa, Roberto, Nakamura, Isamu, Nakao, Mikihiko, Nakayama, Hiroyuki, Nakazawa, Yu, Narimani Charan, Abtin, Naruki, Megumi, Natkaniec, Zbigniew Marian, Natochii, Andrii, Nayak, Lopamudra, Nayak, Minakshi, Nazaryan, Gevorg, Nellikunnummel, Nisar, Ogawa, Satoru, Ono, Hiroaki, Onuki, Yoshiyuki, Oxford, Emma Rollinson, Paladino, Antonio, Panta, Anil, Paoloni, Eugenio, Pardi, Silvio, Park, Hwanbae, Park, Seokhee, Passeri, Antonio, Paul, Stephan Martin, Pedlar, Todd Kristofer, Peruzzi, Ida Marena, Peschke, Richard, Pestotnik, Rok, Piccolo, Marcello, Piilonen, L. E., Podesta lerma, Pedro Luis Manuel, Podobnik, Tomaz, Pokharel, Saroj, Polat, Leonard, Praz, Cyrille, Prell, Soeren, Prencipe, Elisabetta, Prim, Markus Tobias, Purwar, Harsh, Rad, Navid Khandan, Rados, Petar, Raiz, Sebastiano, Ramirez Morales, Andres, Reif, Markus, Reiter, Simon, Remnev, Mikhail, Ripp-Baudot, Isabelle, Rizzo, Giuliana, Robertson, Steven H., Roney, John Michael, Rostomyan, Armine, Rout, Niharika, Russo, Guido, Sanders, David Alan, Sandilya, Saurabh, Sangal, Aman, Sato, Yo, Savinov, Vladimir, Scavino, Bianca, Schueler, Jeff, Schwanda, Christoph, Schwartz, Alan Jay, Schwenker, Benjamin, Seino, Yoshiaki, Selce, Andrea, Senyo, Katsumi, Serrano, Justine, Sevior, Martin Edmund, Sfienti, Concettina, Shen, Chengping, Shi, Xiaodong, Shillington, Trevor, Sibidanov, Alexei, Singh, Jasbir, Skorupa, Justin, Sobie, Randall, Soffer, Abner, Solovieva, Elena, Spataro, Stefano, Spruck, Bjoern, Staric, Marko, Stefkova, Slavomira, Stottler, Zachary Shaun, Stroili, Roberto, Strube, Jan Fridolf, Sumihama, Mizuki, Sumisawa, Kazutaka, Sutcliffe, William, Suzuki, Soh Yamagata, Svidras, Henrikas, Takizawa, Makoto, Tamponi, Umberto, Tanida, Kiyoshi, Tanigawa, Hikaru, Tenchini, Francesco, Thaller, Arthur, Tiwary, Rahul, Tonelli, Diego, Torassa, Ezio, Toutounji, Nadia Ejlal, Trabelsi, Karim, Uchida, Makoto, Ueda, Ikuo, Uematsu, Yuma, Uglov, Timofey, Unger, Kai Lukas, Unno, Yuji, Uno, Kenta, Uno, Shoji, Ushiroda, Yutaka, Vahsen, Sven Einar, van Tonder, Raynette, Varner, Gary, Varvell, Kevin Ernest, Vinokurova, Anna, Vitale, Lorenzo, Vobbilisetti, Vidya Sagar, Wakeling, Hannah Marie, Wang, Erfei, Wang, Min-Zu, Wang, Xiaolong, Warburton, Andreas, Watanabe, Minori, Watanuki, Shun, Welsch, Maximilian, Wessel, Christian, Won, Eunil, Yabsley, Bruce Donald, Yamada, Satoru, Yan, Wenbiao, Yang, Seongbae, Ye, Hua, Yelton, John, Yin, Junhao, Yook, Youngmin, Yoshihara, Keisuke, Yuan, Changzheng, Zani, Laura, Zhang, Yi, Zhilich, Victor, Zhou, Qi-Dong, Zhou, Xing-Yu, Zhukova, Valentina, Zlebcik, Radek, Belle-II Collaboration, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Belle-II, and HEP, INSPIRE

Subjects
lifetime, Omega, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], hadronic decay [Omega/c0], BELLE, annihilation [electron positron], electron positron: colliding beams, Omega/c0: hadronic decay, electron positron: annihilation, pi+, High Energy Physics - Experiment, KEK-B, Omega/c0: lifetime, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], colliding beams [electron positron], ddc:530, charmed baryon, +Omega-+pi%2B%22">Omega/c0 --> Omega- pi+, lifetime [Omega/c0], experimental results
Abstract

Physical review / D 107, L031103 (2023). doi:10.1103/PhysRevD.107.L031103, We report on a measurement of the $\Omega_c^0$ lifetime using $\Omega_c^0 \to \Omega^-\pi^+$ decays reconstructed in $e^+e^-\to c\bar{c}$ data collected by the Belle II experiment and corresponding to $207~{\rm fb^{-1}}$ of integrated luminosity. The result, $\rm\tau(\Omega_c^0)=243\pm48( stat)\pm11(syst)~fs$, agrees with recent measurements indicating that the $\Omega_c^0$ is not the shortest-lived weakly decaying charmed baryon., Published by Inst., Woodbury, NY

Published
2023
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14. Structural mechanism of extranucleosomal DNA readout by the INO80 complex

Author

Kunert, Franziska, primary, Metzner, Felix J., additional, Jung, James, additional, Höpfler, Markus, additional, Woike, Stephan, additional, Schall, Kevin, additional, Kostrewa, Dirk, additional, Moldt, Manuela, additional, Chen, Jia-Xuan, additional, Bantele, Susanne, additional, Pfander, Boris, additional, Eustermann, Sebastian, additional, and Hopfner, Karl-Peter, additional

Published
2022
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17. Structural mechanism of extranucleosomal DNA readout by the INO80 complex

Author

Kunert, Franziska, Metzner, Felix J., Jung, James, Hoepfler, Markus, Woike, Stephan, Schall, Kevin, Kostrewa, Dirk, Moldt, Manuela, Chen, Jia-Xuan, Bantele, Susanne, Pfander, Boris, Eustermann, Sebastian, Hopfner, Karl-Peter, Kunert, Franziska, Metzner, Felix J., Jung, James, Hoepfler, Markus, Woike, Stephan, Schall, Kevin, Kostrewa, Dirk, Moldt, Manuela, Chen, Jia-Xuan, Bantele, Susanne, Pfander, Boris, Eustermann, Sebastian, and Hopfner, Karl-Peter

Abstract

The nucleosomal landscape of chromatin depends on the concerted action of chromatin remodelers. The INO80 remodeler specifically places nucleosomes at the boundary of gene regulatory elements, which is proposed to be the result of an ATP-dependent nucleosome sliding activity that is regulated by extranucleosomal DNA features. Here, we use cryo- electron microscopy and functional assays to reveal how INO80 binds and is regulated by extranucleosomal DNA. Structures of the regulatory A-module bound to DNA clarify the mechanism of linker DNA binding. The A-module is connected to the motor unit via an HSA/post-HSA lever element to chemomechanically couple the motor and linker DNA sensing. Two notable sites of curved DNA recognition by coordinated action of the four actin/actin-related proteins and the motor suggest how sliding by INO80 can be regulated by extranucleosomal DNA features. Last, the structures clarify the recruitment of YY1/Ies4 subunits and reveal deep architectural similarities between the regulatory modules of INO80 and SWI/SNF complexes.

Published
2022

18. Measurement of the $B^+/B^0$ production ratio in $e^+e^-$ collisions at the $\Upsilon(4S)$ resonance using $B \rightarrow J/\psi(\ell\ell) K$ decays at Belle

Author

Adachi, Ichirou, Aihara, Hiroaki, Asner, David, Atmacan, Hulya, Aushev, Tagir, Ayad, Rachid, Babu, Varghese, Bahinipati, Seema, Behera, Prafulla Kumar, Belous, Konstantin, Bennett, Jake, Bessner, Martin, Bhardwaj, Vishal, Bhuyan, Bipul, Bilka, Tadeas, Bodrov, Denis, Bonvicini, Giovanni, Borah, Jyotirmoi, Bozek, Andrzej, Bracko, Marko, Branchini, Paolo, Browder, Thomas, Budano, Antonio, Campajola, Marcello, Cervenkov, Daniel, Chang, Ming-Chuan, Chen, Chunhui, Cheon, Byunggu, Chilikin, Kirill, Cho, Haneol, Cho, Kihyeon, Cho, Sungjin, Choi, Sookyung, Choi, Youngil, Choudhury, Seema, Cinabro, David, Das, Sanjeeda Bharati, de Pietro, Giacomo, Di Capua, Francesco, Dingfelder, Jochen, Dolezal, Zdenek, Dong, Thanh Van, Epifanov, Denis Alexandrovich, Ferlewicz, Daniel, Fulsom, Bryan Gregory, Garg, Renu, Gaur, Vipin, Gabyshev, Nikolay, Giri, Anjan, Goldenzweig, Pablo, Graziani, Enrico, Gu, Tianping, Gudkova, Kristina, Hadjivasiliou, Christos, Hara, Takanori, Hayasaka, Kiyoshi, Hayashii, Hisaki, Hedges, Michael Thomas, Herrmann, Daniel Ricalde, Hou, George Wei-Shu, Hsu, Chia-Ling, Inami, Kenji, Ipsita, N. Sushree, Ishikawa, Akimasa, Itoh, Ryosuke, Iwasaki, Masako, Jacobs, William, Jang, Eunji, Ji, Qingping, Jia, Sen, Jin, Yifan, Joo, Kyung Kwang, Kang, Kook Hyun, Kawasaki, Takeo, Kiesling, Christian, Kim, Cheolhun, Kim, Doris Yangsoo, Kim, Kyungho, Kim, Yongkyu, Kindo, Haruki, Kinoshita, Kay, Kodys, Peter, Konno, Tomoyuki, Korobov, Alexander, Korpar, Samo, Kovalenko, Evgeniy, Krizan, Peter, Krokovny, Pavel, Kumar, Manish, Kumar, Rajeev, Kumara, Kospalage Janaka, Kwon, Young-Joon, Lam, Tommy, Lange, Jens Soeren, Laurenza, Martina, Lee, Seungcheol, Lewis, Peter, Li, Jin, Li, Longke, Li, Yubo, Li Gioi, Luigi, Libby, James Frederick, Lieret, Kilian Adriano, Liventsev, Dmitri, Luo, Tao, Masuda, Masataka, Matsuda, Tatsuro, Matvienko, Dmitry, Maurya, Shubhangi Krishan, Meier, Frank, Merola, Mario, Metzner, Felix, Miyabayashi, Kenkichi, Mizuk, Roman, Mohanty, Gagan Bihari, Nakamura, Isamu, Nakao, Mikihiko, Natkaniec, Zbigniew, Natochii, Andrii, Nayak, Lopamudra, Nayak, Minakshi, Nellikunnummel, Nisar, Nishida, Shohei, Ogawa, Satoru, Ono, Hiroaki, Oskin, Pavel, Pakhlov, Pavel, Pakhlova, Galina, Pardi, Silvio, Park, Seokhee, Passeri, Antonio, Patra, Sourav, Paul, Stephan Martin, Pedlar, Todd Kristofer, Pestotnik, Rok, Piilonen, Leo, Podobnik, Tomaz, Prell, Soeren, Prencipe, Elisabetta, Prim, Markus, Rout, Niharika, Russo, Guido, Sakai, Yoshihide, Sandilya, Saurabh, Sangal, Aman, Santelj, Luka, Savinov, Vladimir, Schueler, Jeff, Schwanda, Christoph, Schwartz, Alan Jay, Seino, Yoshiaki, Senyo, Katsumi, Sevior, Martin Edmund, Shapkin, Mikhail, Sharma, Chanchal, Shen, Chengping, Shiu, Jing-Ge, Singh, Jasbir, Sokolov, Anatoly, Solovieva, Elena, Staric, Marko, Stottler, Zachary S., Strube, Jan, Sumihama, Mizuki, Sumiyoshi, Takayuki, Takizawa, Makoto, Tanida, Kiyoshi, Tenchini, Francesco, Trabelsi, Karim, Uchida, Makoto, Uglov, Timofey, Unno, Yuuji, Uno, Shoji, Urquijo, Phillip, Ushiroda, Yutaka, Usov, Yuri, van Tonder, Raynette, Varner, Gary, Varvell, Kevin Ernest, Vinokurova, Anna, Vossen, Anselm Georg, Waheed, Eiasha, Wang, Erfei, Wang, Min-Zu, Wang, Xiaolong, Watanabe, Minori, Watanuki, Shun, Won, Eunil, Xu, Xinping, Yabsley, Bruce, Yang, Seongbae, Yelton, John, Yin, Junhao, Yuan, Changzheng, Yusa, Yosuke, Zhai, Yunxiao, Zhang, Ziping, Zhilich, Victor, Zhukova, Valentina, and HEP, INSPIRE

Subjects
+electron+positron%22">J/psi(3100) --> electron positron, B0: hadronic decay, Upsilon(10570): electroproduction, +J%2Fpsi%283100%29+K%2B%22">B+ --> J/psi(3100) K+, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], +B0+anti-B0%22">Upsilon(10570) --> B0 anti-B0, measure: ratio, BELLE, electron positron: colliding beams, branching ratio: ratio, electron positron: annihilation, +B%2B+B%22">Upsilon(10570) --> B+ B, decay rate: ratio, electron: pair production, muon: pair production, J/psi(3100): leptonic decay, Upsilon(10570): branching ratio, error: statistical, KEK-B, +muon%2B+muon%22">J/psi(3100) --> muon+ muon, +J%2Fpsi%283100%29+K0%22">B0 --> J/psi(3100) K0, isospin: symmetry, B+: hadronic decay, experimental results
Abstract

We measure the ratio of branching fractions for the $\Upsilon (4S)$ decays to $B^+B^-$ and $B^0\bar{B}{}^0$ using $B^+ \rightarrow J/\psi(\ell\ell) K^+$ and $B^0 \rightarrow J/\psi(\ell\ell) K^0$ samples, where $J/\psi(\ell\ell)$ stands for $J/\psi \to \ell^+\ell^-$ ($\ell = e$ or $\mu$), with $711$ fb$^{-1}$ of data collected at the $\Upsilon(4S)$ resonance with the Belle detector. We find the decay rate ratio of $\Upsilon(4S) \rightarrow B^+B^-$ over $\Upsilon(4S) \rightarrow B^0\bar{B}{}^0$ to be $1.065\pm0.012\pm 0.019 \pm 0.047$, which is the most precise measurement to date. The first and second uncertainties are statistical and systematic, respectively, and the third uncertainty is systematic due to the assumption of isospin symmetry in $B \to J/\psi(\ell\ell) K$.

Published
2022

21. The track finding algorithm of the Belle II vertex detectors

Author

Bilka Tadeas, Braun Nils, Casarosa Giulia, Frost Oliver, Frühwirth Rudolf, Hauth Thomas, Heck Martin, Kandra Jakub, Kodys Peter, Kvasnicka Peter, Lettenbichler Jakob, Lück Thomas, Madlener Thomas, Metzner Felix, Nadler Moritz, Oberhof Benjamin, Paoloni Eugenio, Prim Markus, Ritter Martin, Schlüter Tobias, Schnell Michael, Spruck Bjoern, Trusov Viktor, Wagner Jonas, Wessel Christian, and Ziegler Michael

Subjects
Physics, QC1-999
Abstract

The Belle II experiment is a high energy multi purpose particle detector operated at the asymmetric e+e− - collider SuperKEKB in Tsukuba (Japan). In this work we describe the algorithm performing the pattern recognition for inner tracking detector which consists of two layers of pixel detectors and four layers of double sided silicon strip detectors arranged around the interaction region. The track finding algorithm will be used both during the High Level Trigger on-line track reconstruction and during the off-line full reconstruction. It must provide good efficiency down to momenta as low as 50 MeV/c where material effects are sizeable even in an extremely thin detector as the VXD. In addition it has to be able to cope with the high occupancy of the Belle II detectors due to the background. The underlying concept of the track finding algorithm, as well as details of the implementation are outlined. The algorithm is proven to run with good performance on simulated ϒ(4S) → BB̄ events with an efficiency for reconstructing tracks of above 90% over a wide range of momentum.

Published
2017
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22. Track finding at Belle II

Author

Bertacchi, Valerio, primary, Bilka, Tadeas, additional, Braun, Nils, additional, Casarosa, Giulia, additional, Corona, Luigi, additional, Cunliffe, Sam, additional, Dattola, Filippo, additional, De Marino, Gaetano, additional, De Nuccio, Michael, additional, De Pietro, Giacomo, additional, Van Dong, Thanh, additional, Dujany, Giulio, additional, Ecker, Patrick, additional, Eliachevitch, Michael, additional, Fillinger, Tristan, additional, Frost, Oliver, additional, Frühwirth, Rudolf, additional, Gebauer, Uwe, additional, Glazov, Sasha, additional, Gosling, Nicolas, additional, Guo, Aiqiang, additional, Hauth, Thomas, additional, Heck, Martin, additional, Kaleta, Mateusz, additional, Kandra, Jakub, additional, Kleinwort, Claus, additional, Kuhr, Thomas, additional, Kurz, Simon, additional, Kvasnicka, Peter, additional, Lettenbichler, Jakob, additional, Lueck, Thomas, additional, Martini, Alberto, additional, Metzner, Felix, additional, Neverov, Dmitrii, additional, Niebuhr, Carsten, additional, Paoloni, Eugenio, additional, Patra, Sourav, additional, Piilonen, Leo, additional, Praz, Cyrille, additional, Prim, Markus Tobias, additional, Pulvermacher, Christian, additional, Racs, Sebastian, additional, Rad, Navid, additional, Rados, Petar, additional, Ritter, Martin, additional, Rizzo, Giuliana, additional, Rostomyan, Armine, additional, Scavino, Bianca, additional, Schlüter, Tobias, additional, Schwenker, Benjamin, additional, Spataro, Stefano, additional, Spruck, Björn, additional, Svidras, Henrikas, additional, Tenchini, Francesco, additional, Uematsu, Yuma, additional, Webb, James, additional, Wessel, Christian, additional, and Zani, Laura, additional

Published
2021
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23. B2BII: Data Conversion from Belle to Belle II

Author

Gelb, Moritz, primary, Keck, Thomas, additional, Prim, Markus, additional, Atmacan, Hulya, additional, Gemmler, Jochen, additional, Itoh, Ryosuke, additional, Kronenbitter, Bastian, additional, Kuhr, Thomas, additional, Lubej, Matic, additional, Metzner, Felix, additional, Park, Chanseok, additional, Park, Seokhee, additional, Pulvermacher, Christian, additional, Ritter, Martin, additional, and Zupanc, Anze, additional

Published
2018
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24. Die Kamera als Erzähler

Author

Metzner, Felix Wolfgang

Abstract

Diese Arbeit befasst sich mit den Möglichkeiten der Kamera als eigenständiges narratives Medium im Spielfilm am Beispiel zweier Filme des Kameramanns Michael Ballhaus. Nach einer Begriffsbestimmung der in Bezug auf diese Arbeit wichtigen Begriffe folgt ein Exkurs in die Kunstgeschichte, der die Genese des vom Künstler gelenkten Blickes in Bezug auf den Betrachter und die Verwandtschaft des Kinos mit älteren Kunstgattungen veranschaulichen soll. Im nächsten Abschnitt werden Gedanken aus der Filmtheorie hinsichtlich des Blickes im Kino und Bezugspunkte zu anderen Kunstgattungen umrissen. Abgerundet wird das erste Kapitel durch eine historische Auseinandersetzung mit der Entwicklung der Kamera als narratives Element im Spielfilm. Kapitel zwei bildet eine Vorstellung der wichtigsten Grundlagen der filmischen Bildgestaltung. Das dritte Kapitel befasst sich mit dem Kameramann Michael Ballhaus, den Auswahlkriterien seiner Person diese Arbeit betreffend, sowie einer Beschreibung des Berufsbildes des Kameramanns. Im vierten Kapitel soll versucht werden, anhand der Filme Martha und The Age of Innocence exemplarisch aufzuzeigen, wie die Kamera als eigenständiges narratives Element die Wirkung eines Films auf den Zuschauer unterstützen und bereichern kann. In Kapitel fünf soll durch die Auswertung von circa 50 Filmen, bei denen Ballhaus für die Bildgestaltung zuständig war, eruiert werden, ob sich - unabhängig von der Art der Produktion, dem Genre oder dem Regisseur - so etwas wie eine immanente Handschrift eines Kameramanns erkennen lässt. Das letzte Kapitel stellt ein abschließendes Fazit dar, welches resümiert, ob beziehungsweise wie die beiden in der Arbeit aufgestellten Thesen sich bewahrheiten und was sich daraus für allgemeine Rückschlüsse auf die Bedeutung der Kamera als narratives filmisches Element und die Stellung des Kameramanns als Künstler innerhalb des Kreativteams einer Filmproduktion ziehen lassen.

Published
2015
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