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105 results on '"Leo Piilonen"'

1. Belle2VR: A Virtual-Reality Visualization of Subatomic Particle Physics in the Belle II Experiment.

Author: Zach Duer, Leo Piilonen, and George Glasson
Published: 2018
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2. Measurement of the B+/B0 production ratio in e+e− collisions at the ϒ(4S) resonance using B→J/ψ(ℓℓ)K decays at Belle

Author: Shubhangi Krishan Maurya, Thomas E Browder, Jyotirmoi Borah, Saurabh Sandilya, Christos Hadjivasiliou, Hiroaki Aihara, Andrzej Bożek, Dmitri Liventsev, Markus Tobias Prim, Ichiro Adachi, Christoph Schwanda, Jan Strube, MIN-ZU WANG, Shohei Nishida, Daniel Ferlewicz, Bruce Yabsley, Longke Li, Paolo Branchini, Leo Piilonen, Stephan Paul, Anselm Vossen, Mario Merola, Jake Bennett, Peter Kodyš, Marcello Campajola, Chunhui Chen, Masako Iwasaki, Isamu Nakamura, Karim Trabelsi, J B Singh, Vipin Gaur, Kevin Varvell, Sourav Patra, Chang-Zheng Yuan, Akimasa Ishikawa, Giacomo De Pietro, Seongbae Yang, Peter Mandeville Lewis, David Asner, Chia-Ling Hsu, PHILLIP URQUIJO, Kiyoshi Tanida, and Elena Solovieva
Published: 2023

3. Measurement of the Ωc0 lifetime at Belle II

Author: Shubhangi Krishan Maurya, Swagato Banerjee, Thomas E Browder, Rajesh Kumar MAITI, Jyotirmoi Borah, Saurabh Sandilya, Hiroaki Aihara, Andrzej Bożek, Shawn Dubey, Lu Cao, Alberto Martini, Dmitri Liventsev, Markus Tobias Prim, Ichiro Adachi, Eduard De La Cruz Burelo, Christoph Schwanda, Robin Leboucher, Jan Strube, Angelo Di Canto, Laura Zani, Armine Rostomyan, MIN-ZU WANG, Michel Enrique Hernández Villanueva, Daniel Ferlewicz, Carlos Marinas, Bruce Yabsley, Fernando Abudinén, Giuseppe Finocchiaro, Emilie Bertholet, Longke Li, Arthur Eugen Bolz, ZACHARY LIPTAK, Diego Tonelli, Norayr Akopov, Paolo Branchini, Leo Piilonen, Ewan Hill, Ezio Torassa, Stephan Paul, Sam Cunliffe, Thanh Dong, Latika Aggarwal, Mario Merola, Jake Bennett, Peter Kodyš, Justine Serrano, Ivan Heredia de la Cruz, Marcello Campajola, Livio Lanceri, Michel Bertemes, Masako Iwasaki, Nguyen Anh Ky, Manca Mrvar, Isamu Nakamura, Riccardo Manfredi, J B Singh, Vipin Gaur, Andreas Warburton, Robert Kowalewski, Hossain Ahmed, Kevin Varvell, Paul Jackson, Marco Giovanni Maria Destefanis, Mirco Dorigo, Torben Ferber, Gianluca Inguglia, Chang-Zheng Yuan, Giulio Dujany, Akimasa Ishikawa, Michael Roney, Giacomo De Pietro, Henrik Junkerkalefeld, Alberto Aloisio, Seongbae Yang, Chaoyi Lyu, David Asner, Ludovico Massaccesi, Chia-Ling Hsu, Priyanka Cheema, Sebastiano Raiz, Kiyoshi Tanida, and Elena Solovieva
Published: 2023

4. Measurement of branching fractions of Λc+→pKS0KS0 and Λc+→pKS0η at Belle

Author: Shubhangi Krishan Maurya, Swagato Banerjee, Thomas E Browder, Jyotirmoi Borah, Saurabh Sandilya, Gunar Schnell, Christos Hadjivasiliou, Hiroaki Aihara, Andrzej Bożek, Dmitri Liventsev, Markus Tobias Prim, Ichiro Adachi, Christoph Schwanda, Kay Kinoshita, Jan Strube, Armine Rostomyan, MIN-ZU WANG, Shohei Nishida, Daniel Ferlewicz, Bruce Yabsley, Bostjan Golob, Longke Li, Paolo Branchini, Leo Piilonen, Frank Simon, Stephan Paul, Anselm Vossen, Thanh Dong, Mario Merola, Jake Bennett, Peter Kodyš, Marcello Campajola, Masako Iwasaki, Isamu Nakamura, J B Singh, Vipin Gaur, Kevin Varvell, Torben Ferber, Sourav Patra, Chang-Zheng Yuan, Akimasa Ishikawa, Giacomo De Pietro, Seongbae Yang, David Asner, Chia-Ling Hsu, PHILLIP URQUIJO, Kiyoshi Tanida, and Elena Solovieva
Published: 2023

5. Measurement of the branching fractions for Cabibbo-suppressed decays D+→K+K−π+π0 and D(s)+→K+π−π+π0 at Belle

Author: Shubhangi Krishan Maurya, Thomas E Browder, Jyotirmoi Borah, Saurabh Sandilya, Gunar Schnell, Christos Hadjivasiliou, Hiroaki Aihara, Andrzej Bożek, Alberto Martini, Dmitri Liventsev, Markus Tobias Prim, Christoph Schwanda, Kay Kinoshita, Lopamudra Nayak, Armine Rostomyan, MIN-ZU WANG, Shohei Nishida, Bruce Yabsley, David Dossett, Longke Li, Paolo Branchini, Leo Piilonen, Frank Simon, Stephan Paul, Sam Cunliffe, Anselm Vossen, Mario Merola, Jake Bennett, Peter Kodyš, Marcello Campajola, Masako Iwasaki, J B Singh, Vipin Gaur, Debashis Sahoo, Kevin Varvell, Sourav Patra, Chang-Zheng Yuan, Akimasa Ishikawa, Giacomo De Pietro, Seongbae Yang, David Asner, Chia-Ling Hsu, Kiyoshi Tanida, Elena Solovieva, and PAO-TI CHANG
Published: 2023

6. Measurements of partial branching fractions of inclusive B→Xuℓ+νℓ decays with hadronic tagging

Author: M. Uchida, L. K. Li, G. De Nardo, M. T. Hedges, T. Matsuda, T. Pang, S. Uno, R. Itoh, S Choudhury, G. Bonvicini, A. Rostomyan, Zhukova, S. Cunliffe, B. G. Fulsom, D. Ferlewicz, A. Vinokurova, S. Dubey, S. Al Said, D. Matvienko, Y Choi, Pavel Krokovny, Florian Urs Bernlochner, C. Kiesling, M. Bračko, M Merola, K. H. Kang, B. H. Kim, C. Z. Yuan, K. Miyabayashi, Popov, Samo Korpar, Steve K. Choi, S Ogawa, Deepak Kumar Sahoo, J. MacNaughton, T. Kawasaki, R. Mussa, H. B. Jeon, A. Ishikawa, M. Nakao, W. S. Hou, Alexei Kuzmin, GB Mohanty, Yongsun Kim, K. Lalwani, S-H Park, M. Takizawa, S.-J. Cho, U. Tamponi, D Cinabro, K. Trabelsi, S. Jia, E. Prencipe, E. Wang, F. Tenchini, R. Mizuk, K. Chilikin, D. Epifanov, T. Podobnik, T. Sumiyoshi, Martin Ritter, T. Sanuki, Matthias Bauer, S. Paul, C. Schwanda, L. Li Gioi, S. Pardi, C. P. Shen, S. Nishida, J. Schueler, C. MacQueen, A. J. Schwartz, T. K. Pedlar, W. B. Yan, M. Campajola, C. W. Park, E. Won, K. Kumara, K. Tanida, P. Krizan, L. Nayak, A. K. Giri, BG Cheon, G. Schnell, P. Oskin, T. Ferber, Z. Natkaniec, Andrey Sokolov, S. Wehle, R. Ayad, A. Bozek, Z. S. Stottler, K. Cho, S. E. Vahsen, X. P. Xu, T. Iijima, M. Rozanska, G. Varner, H. Atmacan, T. Uglov, M. Masuda, D. Kotchetkov, D. Červenkov, K. Nishimura, C. W. Joo, H. Kichimi, Villanueva, MH[Villanueva, M. Hernandez], A. Sangal, Phillip Urquijo, J. H. Yin, Z. J. Liptak, J. F. Strube, Zhilich, H Aihara, Rahul Kumar, T. Bilka, L. Cao, Semen Eidelman, J. Wiechczynski, M. Watanabe, F. Di Capua, A. Garmash, J. C. Dingfelder, Vorobyev, Y. Sakai, N. K. Nisar, Bhardwaj, Y. Iwasaki, Babu, P. Wang, Sudhanwa Patra, Samo Stanič, K. Lieret, J. S. Lange, I. Adachi, Bruce Yabsley, R. Kroeger, C.-L. Hsu, Y-J Kwon, D. Liventsev, DY Kim, Chekelian, Y. Jin, M. E. Sevior, I. S. Lee, A. Frey, K Kinoshita, P. Goldenzweig, M. Nayak, W. Sutcliffe, C. Sharma, Peter Kodys, W. W. Jacobs, E. Solovieva, Tagir Aushev, Y. Onuki, H. Ono, Leo Piilonen, E.-J. Jang, Zdenek Dolezal, T. Kuhr, Seongbae Yang, A. Vossen, Frank Simon, Y. Unno, H. E. Cho, N. Rout, G. Karyan, TE Browder, K. Belous, M Iwasaki, S. C. Lee, N. Dash, Y. Guan, M. Mrvar, Zhiqing Zhang, Chunjie Wang, P. Chang, P Behera, M. Niiyama, M. C. Chang, E. Waheed, Martin Florian Bessner, J. Libby, D. M. Asner, K. Hayasaka, E. Kovalenko, H Ye, S. Sandilya, Y. Seino, Shoichi Watanuki, M. Starič, K. Senyo, S. Das, Kevin Varvell, J. V. Bennett, T. Mori, Y. Usov, G. Pakhlova, S. H. Kim, J. Li, Mukesh Kumar, T. J. Moon, M. T. Prim, C. H. Li, T. Konno, H. Hayashii, Hyunyong Kim, C. H. Kim, M. Z. Wang, Felix Metzner, A. Chen, K. K. Joo, M. Shapkin, Yang Li, T. V. Dong, M. Röhrken, T. Hara, L. Santelj, Gaur, O. Hartbrich, R. Pestotnik, A. Natochii, K. Inami, A. Korobov, Savinov, Y. Yusa, R. Van Tonder, R. B. Garg, J-G Shiu, K.-H. Kim, J. Biswal, Zhulanov, C. Hadjivasiliou, P. Pakhlov, Philip Lewis, G. Russo, and H. Park
Subjects: Physics, Research program, Higher education, 010308 nuclear & particles physics, business.industry, Atomic energy, media_common.quotation_subject, Library science, 01 natural sciences, Excellence, 0103 physical sciences, media_common.cataloged_instance, European union, 010306 general physics, China, business, National laboratory, Research center, media_common
Abstract: We thank Kerstin Tackmann, Frank Tackmann, Zoltan Ligeti, Ian Stewart, Thomas Mannel, and Keri Voss for useful discussions about the subject matter of this manuscript. L. C., W. S., R. V. T., and F. B. were supported by the DFG Emmy-Noether Grant No. BE 6075/1-1. W. S. was supported by the Alexander von Humboldt Foundation. We thank the KEKB group for the excellent operation of the accelerator, the KEK cryogenics group for the efficient operation of the solenoid, and the KEK computer group and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support, and the National Institute of Informatics and Science Information NETwork 5 (SINET5) for valuable network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, and No. FT130100303; Austrian Federal Ministry of Education, Science and Research (FWF) and FWF Austrian Science Fund No. P 31361-N36; the National Natural Science Foundation of China under Contracts No. 11435013, No. 11475187, No. 11521505, No. 11575017, No. 11675166, and No. 11705209; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSW-SLH011; the CAS Center for Excellence in Particle Physics (CCEPP); the Shanghai Pujiang Program under Grant No. 18PJ1401000; the Shanghai Science and Technology Committee (STCSM) under Grant No. 19ZR1403000; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020; Horizon 2020 ERC Advanced Grant No. 884719 and ERC Starting Grant No. 947006 "InterLeptons" (European Union); the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Atomic Energy (Project Identification No. RTI 4002) and the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2016R1D1A1B01010135, No. 2016R1D1A1B02012900, No. 2018R1A2B3003643, No. 2018R1A6A1A06024970, No. 2018R1D1A1B07047294, No. 2019K1A3A7A09033840, andNo. 2019R1I1A3A01058933; Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information and KREONET/GLORIAD; the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Science and Higher Education of the Russian Federation, Agreement 14.W03.31.0026, and the HSE University Basic Research Program, Moscow; University of Tabuk research Grants No. S-1440-0321, No. S-02561438, and No. S-0280-1439 (Saudi Arabia); the Slovenian Research Agency Grants No. J1-9124 and No. P1-0135; Ikerbasque, Basque Foundation for Science, Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the U.S. Department of Energy and the National Science Foundation
Published: 2021

7. Search for Bs0→η′Xss¯ at Belle using a semi-inclusive method

Author: D. M. Asner, K. Tanida, K. Hayasaka, Daniel Greenwald, S. Al Said, D. Epifanov, Soumya D. Mohanty, R. Mizuk, K. Chilikin, Y. Seino, S. E. Vahsen, J. V. Bennett, Y. Tao, F. Di Capua, M. Uchida, T. K. Pedlar, GB Mohanty, P. Wang, Shoichi Watanuki, Yongsun Kim, A. Sangal, P. Oskin, Y. Usov, L. K. Li, K. Lalwani, C. Schwanda, S. Nishida, Martin Florian Bessner, R. Kulasiri, J. Li, R. Dhamija, A. B. Kaliyar, W. B. Yan, H. Kichimi, A. Bobrov, Y. Iwasaki, L. Nayak, V. Babu, H Ye, T. J. Moon, M. T. Prim, K. Sumisawa, H. E. Cho, TE Browder, P Behera, A. K. Giri, T. Matsuda, M. T. Hedges, BG Cheon, G. Schnell, K. Nishimura, N. Rout, M. Bračko, T. Ferber, M. Masuda, S. Uno, K. Senyo, C. W. Joo, S Choudhury, G. Bonvicini, E. Prencipe, S. Das, G. Varner, R. Itoh, A. Bozek, A. Rostomyan, S. Pardi, G. Russo, S. Dubey, G. Pakhlova, S. Cunliffe, V.N. Zhilich, B. G. Fulsom, K. Gudkova, J. F. Strube, E.-J. Jang, M Merola, Y. Guan, C.-L. Hsu, Semen Eidelman, M. Nayak, J. Biswal, Y Choi, Rahul Kumar, K. Miyabayashi, Samo Korpar, S-H Park, C. Hadjivasiliou, C. Sharma, Bruce Yabsley, S. Sandilya, W. S. Hou, T. Kuhr, Pavel Krokovny, C. H. Li, A. Ishikawa, R. Van Tonder, M. Nakao, M. Takizawa, V. Gaur, R. B. Garg, B. Bhuyan, Y. Ushiroda, A. Natochii, J-G Shiu, C. MacQueen, P. Križan, M. Starič, K. Inami, Z. Doležal, D Cinabro, K. Trabelsi, J. Libby, F. Tenchini, V. Savinov, Doyen Sahoo, K. Kumara, S. H. Kim, E. Wang, J. H. Yin, S Ogawa, T. Podobnik, Tagir Aushev, Y. Onuki, Z. S. Stottler, T. Kawasaki, M. Campajola, B. Golob, N. Gabyshev, D. Červenkov, T. Sanuki, A. Garmash, N. K. Nisar, J. S. Lange, H. Hayashii, T. D. Kimmel, C. H. Kim, B. Shwartz, R. Kroeger, D. Liventsev, Y-J Kwon, Y. Jin, M. E. Sevior, P. Goldenzweig, Y. Sakai, E. Solovieva, X. P. Xu, K Kinoshita, S. Bilokin, Yang Li, Seema Bahinipati, L. Santelj, M Iwasaki, S. C. Lee, Zhiqing Zhang, Chunjie Wang, H. Ono, Leo Piilonen, Seongbae Yang, Felix Metzner, Y. Unno, DY Kim, K. K. Joo, R. Ayad, K. Cho, Victoria Zhukova, M. Shapkin, R. Pestotnik, L. Li Gioi, U. Tamponi, D. Dossett, H Aihara, and M. Watanabe
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, 01 natural sciences, Belle experiment, law.invention, Luminosity, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Collider, Bar (unit)
Abstract: We report the first search for the penguin-dominated process $B_{s}^{0} \rightarrow \eta^{\prime} X_{s\bar{s}}$ using a semi-inclusive method. A 121.4 $\mathrm{fb}^{-1}$ integrated luminosity $\Upsilon(5S)$ data set collected by the Belle experiment, at the KEKB asymmetric-energy $e^+e^-$ collider, is used. We observe no statistically significant signal and including all uncertainties, we set a 90\% confidence level upper limit on the partial branching fraction at 1.4 $\times$ 10$^{-3}$ for $M(X_{s\bar{s}})$ $\leq$ 2.4 GeV/$c^{2}$.
Published: 2021

8. First determination of the spin and parity of the charmed-strange baryon Ξc(2970)+

Author: R. Mizuk, K. Chilikin, K. T. Kim, Y Choi, C. Beleño, Y. Kato, D. M. Asner, Pavel Krokovny, D. Dossett, K. Hayasaka, W. Sutcliffe, Zhukova, Y. Seino, J. Libby, D. Epifanov, K. Miyabayashi, D Cinabro, K. Trabelsi, B. Golob, A. Garmash, S. Wehle, A. Sangal, G. Varner, M. Uchida, Y. I. Kim, Leo Piilonen, C. P. Shen, F. Di Capua, H. Miyata, Takeo Kawasaki, A. K. Giri, K. Sumisawa, BG Cheon, T. J. Moon, J. S. H. Lee, N. K. Nisar, Babu, Z. Liptak, M. Niiyama, P Behera, A. Vossen, T. D. Kimmel, M. Masuda, T. K. Pedlar, S. Al Said, J. Biswal, Zhulanov, M. Nayak, P. Wang, H Aihara, L. K. Li, G. Schnell, T. V. Dong, T. Bilka, R. Kroeger, J. Schueler, Seongbae Yang, H. Ono, Saraju P. Mohanty, GB Mohanty, Vorobyev, E. Prencipe, D. Liventsev, TE Browder, P. Chang, U. Tamponi, C.-L. Hsu, K. K. Joo, S-H Park, Yongsun Kim, K. Senyo, C. Schwanda, S. Cunliffe, B. G. Fulsom, S. Jia, D. Matvienko, R. Itoh, X. P. Xu, A. Bozek, Peter Kodys, W. W. Jacobs, T. Matsuda, Zdenek Dolezal, T. Kuhr, M Iwasaki, Yang Li, S. Paul, R. Mussa, T. Ferber, Tao Luo, K. Tanida, S. K. Kim, A. Kuzmin, D. Kotchetkov, S. Uno, S Choudhury, L. Cao, S. C. Lee, M. Takizawa, C. MacQueen, G. Karyan, J. K. Ahn, L. Santelj, G. Bonvicini, Aulchenko, A. Ishikawa, M. Nakao, L. Li Gioi, John Yelton, Gaur, Samo Korpar, A. Vinokurova, S. Dubey, Y. Sakai, H. Kichimi, Rocky Bala Garg, F. Tenchini, O. Hartbrich, Zhiqing Zhang, Chunjie Wang, S. Patra, T. Podobnik, S. Pardi, T. Sumiyoshi, P. Krizan, S Ogawa, E. Wang, M. Campajola, Rakesh Kumar, M Merola, K. H. Kang, J. Wiechczynski, B.A. Shwartz, Y. Unno, Martin Ritter, R. Ayad, K. Cho, Seema Bahinipati, C. Hadjivasiliou, Bruce Yabsley, S. Nishida, G. De Nardo, M. T. Hedges, Y-J Kwon, K. Kumara, Y. Jin, T. Uglov, W-S Hou, Phillip Urquijo, M. E. Sevior, I. S. Lee, Savinov, Zhilich, P. Goldenzweig, M. Sumihama, I. Adachi, N. Dash, T. Mori, E. Solovieva, DY Kim, Semen Eidelman, J. H. Yin, G. Inguglia, K Kinoshita, R. Seidl, C. Kiesling, B. H. Kim, C. Z. Yuan, M. Bračko, Tagir Aushev, M. C. Chang, G. Pakhlova, S. K. Choi, S. Sandilya, Z. Natkaniec, S. E. Vahsen, Y. Iwasaki, S. Uehara, N. Rout, N. Gabyshev, D. Červenkov, M. Z. Wang, Martin Florian Bessner, H Ye, J. Bennett, S. H. Kim, M. Shapkin, H. Hayashii, R. Pestotnik, Dipak Kumar Sahoo, Popov, Kohei Ogawa, A. Chen, A. Natochii, K. Inami, M. T. Prim, T. Nakano, P. Pakhlov, G. Russo, H. Park, R. Van Tonder, B. Bhuyan, and J-G Shiu
Subjects: Quark, Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Parity (physics), 01 natural sciences, Baryon, KEKB, Angular distribution, Condensed Matter::Superconductivity, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics
Abstract: We report results from a study of the spin and parity of $\Xi_{c}(2970)^+$ using a $980~\mathrm{fb^{-1}}$ data sample collected by the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. The decay angle distributions in the chain $\Xi_{c}(2970)^+ \to \Xi_c(2645)^{0}\pi^{+} \to \Xi_c^{+}\pi^{-}\pi^{+}$ are analyzed to determine the spin of this charmed-strange baryon. The angular distributions strongly favor the $\Xi_{c}(2970)^+$ spin $J =1/2$ over $3/2$ or $5/2$, under an assumption that the lowest partial wave dominates in the decay. We also measure the ratio of $\Xi_{c}(2970)^+$ decay branching fractions $R={\mathcal{B}[ \Xi_{c}(2970)^+ \to \Xi_c(2645)^{0}\pi^{+} ]} / { \mathcal{B}[ \Xi_{c}(2970)^+ \to \Xi_c^{\prime0}\pi^{+} ]} =1.67 \pm 0.29\mathrm{(stat.)}^{ +0.15}_{ -0.09}\mathrm{(syst.)} \pm 0.25\mathrm{(IS)}$, where the last uncertainty is due to possible isospin-symmetry-breaking effects. This $R$ value favors the spin-parity $J^P=1/2^+$ with the spin of the light-quark degrees of freedom $s_{l}=0$. This is the first determination of the spin and parity of a charmed-strange baryon.
Published: 2021

9. Measurement of the resonant and nonresonant branching ratios in Ξc0→Ξ0K+K−

Author: W. B. Yan, G. Schnell, M. Uchida, Z. Liptak, K Kinoshita, B. Golob, K. Tanida, A. Garmash, H. Kichimi, D. M. Asner, K. Hayasaka, G. Russo, N. K. Nisar, H. Park, K. Lieret, A. Sangal, Victoria Zhukova, M. Niiyama, F. Di Capua, H Aihara, Y. Seino, A. Rostomyan, S. Cunliffe, A. Chen, P. Wang, B. G. Fulsom, K. Adamczyk, Y-J Kwon, Y. Jin, S-H Park, M. E. Sevior, V.E. Shebalin, P. Goldenzweig, W. S. Hou, J-G Shiu, S. Uehara, N. Rout, T. Bilka, K. Senyo, N. Dash, E. Solovieva, S. Das, S. Al Said, M. Takizawa, A. Bobrov, V. Vorobyev, R. Itoh, Saraju P. Mohanty, M. T. Prim, X. P. Xu, D. Matvienko, V. Savinov, John Yelton, R. Kulasiri, M. Watanabe, M Iwasaki, Z. Doležal, Y Choi, GB Mohanty, L. Cao, Yongsun Kim, TE Browder, S. Sandilya, M. Sumihama, S. C. Lee, P. Chang, M. Kumar, A. B. Kaliyar, J. Biswal, Tomoyuki Konno, K. Lalwani, S Ogawa, C. Schwanda, J. Schueler, Samo Korpar, M. Shapkin, Zhiqing Zhang, Chunjie Wang, U. Tamponi, M. Röhrken, E. Won, S. K. Choi, M. Starič, Pavel Krokovny, A. Bozek, J. H. Yin, Tagir Aushev, V. Chekelian, Y. Onuki, B. H. Kim, E. Prencipe, S. Pardi, Y. Guan, Leo Piilonen, R. Ayad, K. Kumara, M. Nayak, R. Van Tonder, V. Gaur, K. Cho, R. Pestotnik, Seema Bahinipati, S.-J. Cho, Frank Simon, L. Li Gioi, Z. S. Stottler, V.M. Aulchenko, C. MacQueen, D Cinabro, J. K. Ahn, M. Bračko, Bruce Yabsley, Yang Li, G. Varner, M. Z. Wang, O. Grzymkowska, G. De Nardo, L. Nayak, V. Babu, V. Popov, L. Santelj, M. Campajola, S. Paul, V.N. Zhilich, T. Ferber, C. Hadjivasiliou, K. Miyabayashi, Y. Sakai, K. Gudkova, T. J. Moon, Felix Metzner, C. H. Kim, H. Atmacan, K. K. Joo, N. Gabyshev, D. Červenkov, K. Huang, Dipak Kumar Sahoo, I. Adachi, DY Kim, S. Jia, T. Matsuda, S. Uno, S Choudhury, G. Bonvicini, A. Vinokurova, M Merola, K. H. Kang, Kohei Ogawa, A. Natochii, H. Ono, K. Inami, T. K. Pedlar, L. K. Li, S. H. Kim, Y. Unno, F. Tenchini, T. Podobnik, T. Sumiyoshi, P. Oskin, H. Hayashii, Semen Eidelman, R. Kroeger, D. Liventsev, R. Mussa, H. B. Jeon, A. Ishikawa, S. Watanuki, M. Nakao, P. Križan, G. Pakhlova, J. T. McNeil, Y. Tao, J. F. Strube, E. Wang, J. Libby, A. K. Giri, BG Cheon, M. Masuda, Martin Florian Bessner, H Ye, J. Bennett, T. V. Dong, R. Mizuk, K. Chilikin, R. Dhamija, C.-L. Hsu, J. Li, C. Sharma, Peter Kodys, W. W. Jacobs, T. Kuhr, G. Karyan, P Behera, and S. Nishida
Subjects: Physics, Research program, Higher education, 010308 nuclear & particles physics, business.industry, media_common.quotation_subject, Library science, 01 natural sciences, 7. Clean energy, Chinese academy of sciences, Excellence, 0103 physical sciences, Agency (sociology), 010306 general physics, China, National laboratory, business, Research center, media_common
Abstract: We thank the KEKB group for the excellent operation of the accelerator, the KEK cryogenics group for the efficient operation of the solenoid, the KEK computer group and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support, and the National Institute of Informatics and Science Information NETwork 5 (SINET5) for valuable network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, and No. FT130100303; Austrian Science Fund (FWF); the National Natural Science Foundation of China under Contracts No. 11435013, No. 11475187, No. 11521505, No. 11575017, No. 11675166, and No. 11705209; the Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSW-SLH011; the CAS Center for Excellence in Particle Physics (CCEPP); the Shanghai Pujiang Program under Grant No. 18PJ1401000; the Ministry of Education, Youth, and Sports of the Czech Republic under Contract No. LTT17020; the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2016R1D1A1B01010135, No. 2016R1D1A1B02012900, No. 2018R1A2B3003643, No. 2018R1A6A1A06024970, No. 2018R1D1A1B070 47294, 2019K1A3A7A09033840, and No. 2019R1I1 A3A01058933; the Radiation Science Research Institute, Foreign Large-size Research Facility Application supporting project, the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information and KREONET/GLORIAD; the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Science and Higher Education of the Russian Federation, Agreement No. 14.W03.31.0026; University of Tabuk Research Grants No. S-1440-0321, No. S-0256-1438, and No. S-0280-1439 (Saudi Arabia); the Slovenian Research Agency; Ikerbasque, Basque Foundation for Science, Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the United States Department of Energy and the National Science Foundation.
Published: 2021

10. Test of Lepton-Flavor Universality in B→K*ℓ+ℓ− Decays at Belle

Author: H. Ono, G. Schnell, T. Iijima, H. Miyata, J. Biswal, Y. Sakai, A. K. Giri, BG Cheon, Massimo Berger, V.N. Zhilich, C. Z. Yuan, M. Masuda, A. Kuzmin, W. Sutcliffe, V. Babu, Y. Guan, Z Liptak, K. Kumara, Y. Unno, P Behera, S. Jia, T. Ferber, J-G Shiu, T. Matsuda, G. De Nardo, M. T. Hedges, M. C. Chang, S Ogawa, P. K. Resmi, S. Uno, C.-L. Hsu, S Choudhury, D. M. Asner, K. Hayasaka, V. Savinov, Daniel Greenwald, A. Garmash, Iki Adachi, G. Pakhlova, M. Z. Wang, N. K. Nisar, K. Trabelsi, S. Dubey, W. W. Jacobs, J. Libby, J. S. Lange, O. Hartbrich, T. Kuhr, DY Kim, K. Adamczyk, H. Kichimi, Tao Luo, K. Tanida, Y. Seino, Rakesh Kumar, M Merola, A. J. Schwartz, X. P. Xu, M. Uchida, V. Bhardwaj, Y Choi, G. Karyan, M. Niiyama, H Ye, J. F. Strube, S. H. Kim, D. Epifanov, Pavel Krokovny, X. L. Wang, H Aihara, GB Mohanty, S. Wehle, M. Campajola, R. Itoh, R. Van Tonder, H. Hayashii, A. Sangal, Jihwa Lee, Y. I. Kim, Leo Piilonen, L. Cao, C. Schwanda, A. B. Kaliyar, Takeo Higuchi, J. Kahn, T. K. Pedlar, R. Ayad, A. Rostomyan, Dipak Kumar Sahoo, S. Cunliffe, D Cinabro, R. Kulasiri, S. Nishida, J. MacNaughton, J. T. McNeil, B. G. Fulsom, K. Cho, Samo Korpar, J. Schueler, V. Gaur, E. Won, Seongbae Yang, U. Tamponi, G. Russo, H. Park, K. Senyo, A. Bozek, Kevin Varvell, Y. Ushiroda, Kohei Ogawa, W-S Hou, G. Varner, A. Natochii, F. Tenchini, K Kinoshita, K. Inami, B.A. Shwartz, S. E. Vahsen, TE Browder, T. Podobnik, T. Sumiyoshi, G. Inguglia, E. Prencipe, T. Uglov, Y. Tao, Martin Ritter, N. Dash, E. Solovieva, Y. Iwasaki, F. Di Capua, Y-J Kwon, Vladimir Zhulanov, Y. Jin, M Iwasaki, O. Schneider, N. Rout, S. C. Lee, D. Kotchetkov, M. E. Sevior, P. Goldenzweig, Zhiqing Zhang, Chunjie Wang, P. Wang, J. Haba, C. Niebuhr, Tagir Aushev, V. Zhukova, Y. Onuki, S. Sandilya, P. Pakhlov, M. Starič, Semen Eidelman, R. Mussa, V.M. Aulchenko, A. Ishikawa, M. Nakao, I. Komarov, R. Kroeger, D. Liventsev, R. Mizuk, K. Chilikin, J. H. Yin, M. Bračko, N. Gabyshev, Rocky Bala Garg, S-H Park, M. Takizawa, K. T. Kim, M. Nayak, T. J. Moon, Felix Metzner, H. Atmacan, D. Joffe, V. Vorobyev, Yang Li, V. Popov, L. Santelj, A. Chen, M. Shapkin, R. Pestotnik, and M. T. Prim
Subjects: Research program, Higher education, business.industry, media_common.quotation_subject, General Physics and Astronomy, Library science, 7. Clean energy, 01 natural sciences, Chinese academy of sciences, Excellence, 0103 physical sciences, Natural science, Christian ministry, 010306 general physics, business, China, Research center, media_common
Abstract: We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, No. FT130100303; Austrian Science Fund (FWF); the National Natural Science Foundation of China under Contracts No. 11435013, No. 11475187, No. 11521505, No. 11575017, No. 11675166, No. 11705209; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSWSLH011; the CAS Center for Excellence in Particle Physics (CCEPP); the Shanghai Pujiang Program under Grant No. 18PJ1401000; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020; the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2016R1D1A1B01010135, No. 2016R1D1A1B02012900, No. 2018R1A2B3003643, No. 2018R1A6A1A06024970, No. 2018R1D1A1B07047294, No. 2019K1A3A7A09033840, No. 2019R1I1A3A01058933; Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information, and KREONET/GLORIAD the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Science and Higher Education of the Russian Federation, Agreement No. 14.W03.31.0026; University of Tabuk research Grants No. S-1440-0321, No. S-0256-1438, and No. S-0280-1439 (Saudi Arabia); the Slovenian Research Agency; Ikerbasque, Basque Foundation for Science, Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the U.S. Department of Energy and the National Science Foundation.
Published: 2021

11. Erratum: Measurement of the CKM matrix element |Vcb| from B0→D*−ℓ+νℓ at Belle [Phys. Rev. D 100 , 052007 (2019)]

Author: R. B. Garg, B. Bhuyan, J-G Shiu, Andrey Sokolov, V. Savinov, H Ye, K. Nishimura, K. Inami, D. Epifanov, M. Z. Wang, L. Li Gioi, D. Červenkov, J. Haba, S. H. Kim, S. Sandilya, Tao Luo, K. Tanida, V. Gaur, H. Hayashii, S. Pardi, C. H. Kim, Semen Eidelman, G. Schnell, T. Iijima, Victoria Zhukova, Florian Urs Bernlochner, M. Starič, A. K. Giri, A. Chen, I. Adachi, BG Cheon, J. MacNaughton, Jihwa Lee, M Iwasaki, D. Matvienko, Y Choi, S. C. Lee, M. Bračko, V. Chekelian, Zhiqing Zhang, Chunjie Wang, F. Tenchini, S. Uno, DY Kim, M. Salehi, Pavel Krokovny, S. Al Said, J. Biswal, M. Campajola, GB Mohanty, M. T. Hedges, M. Masuda, V.N. Zhilich, D. Ferlewicz, D Cinabro, Samo Korpar, T. Sumiyoshi, S Choudhury, G. Bonvicini, B. K. Pal, K. Trabelsi, Kevin Varvell, Y. Iwasaki, J. Kahn, C. Schwanda, J. E. Fast, C. P. Shen, K. Senyo, J. F. Strube, K. T. Kim, P. Pakhlov, E. Waheed, D. Dossett, Vikas Bansal, V. Babu, P. Wang, O. Schneider, A. Vinokurova, S. K. Choi, T. Sanuki, Phillip Urquijo, T. Mori, K. Miyabayashi, I. Badhrees, M Merola, Y. Usov, V.E. Shebalin, M. Nayak, Y. Sakai, H Aihara, C. H. Li, G. Russo, H. Park, S-H Park, R. Pestotnik, Samo Stanič, T. Uglov, D. M. Asner, S. Nishida, T. Bilka, K. Hayasaka, M. Takizawa, K Kinoshita, K. Lieret, R. Mizuk, R. Ayad, K. Cho, Z. S. Stottler, G. Varner, Z. Doležal, Eunil Won, K. Chilikin, Z. Natkaniec, E. Prencipe, Y-J Kwon, Y. Jin, C. Beleño, R. Kulasiri, S. Jia, Y. Seino, M. T. Prim, M. E. Sevior, P. Goldenzweig, O. Grzymkowska, G. Pakhlova, TE Browder, G. Inguglia, S. Paul, P. Chang, C.-L. Hsu, H. Ono, Peter Kodys, W. W. Jacobs, E. Solovieva, T. Kuhr, S. Di Carlo, Y. Unno, G. Karyan, M. Uchida, L. K. Li, Leo Piilonen, D. Joffe, Tagir Aushev, Seongbae Yang, A. Vossen, A. Rostomyan, S. Cunliffe, B. G. Fulsom, O. Seon, Frank Simon, Vladimir Popov, R. Mussa, P. C. Lu, H. B. Jeon, A. Ishikawa, M. Nakao, P. Križan, D. Kotchetkov, S Ogawa, T. Kawasaki, R. Kroeger, D. Liventsev, B. Shwartz, K. Adamczyk, W. S. Hou, Alexei Kuzmin, A. B. Kaliyar, J. Schueler, A. Bozek, H. Atmacan, Felix Metzner, B. Golob, A. Garmash, N. K. Nisar, J. S. Lange, K. K. Joo, Yang Li, T. V. Dong, K. J. Nath, T. Hara, Y. Yusa, M. Niiyama, J. Libby, I. Nakamura, H. Miyata, A. Bobrov, H. E. Cho, and P Behera
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Cabibbo–Kobayashi–Maskawa matrix, 0103 physical sciences, Element (category theory), 010303 astronomy & astrophysics, 01 natural sciences, Vertical bar
Published: 2021

12. Evidence for X(3872)→J/ψπ+π− Produced in Single-Tag Two-Photon Interactions

Author: R. Mussa, G.V. Russo, A. Ishikawa, W. S. Hou, Y. Seino, S. Jia, G. Inguglia, T. Matsuda, M. Nakao, C. MacQueen, B. Bhuyan, P. Chang, P. Križan, Somnath Choudhury, G. Bonvicini, Iki Adachi, A. Vinokurova, J. G. Shiu, V. Savinov, M. Campajola, S. Pardi, Doo Young Kim, H. Aihara, A. B. Kaliyar, O. Hartbrich, J. Kahn, C.-L. Hsu, J. Schueler, Y. Teramoto, Bruce Yabsley, D. Liventsev, B. H. Kim, J. Libby, D. M. Asner, K. Hayasaka, Rakesh Kumar, Peter Kodys, M. T. Prim, Takeo Kawasaki, V. Gaur, W. W. Jacobs, K. H. Kang, V.N. Zhilich, Y. Kato, W. Sutcliffe, A. Sangal, X. L. Wang, T. Uglov, V. Chekelian, G. B. Mohanty, S. Sandilya, T. Mori, G. Karyan, S. Cunliffe, K. Miyabayashi, G. Varner, M. Shapkin, Y. Usov, R. Van Tonder, M. C. Chang, A. K. Giri, M. Takizawa, R. Ayad, K. Cho, Jyoti Prakash Biswal, G. De Nardo, M. T. Hedges, T. K. Pedlar, N. K. Nisar, M. Iwasaki, Pavel Krokovny, K. Senyo, A. Garmash, M. Masuda, G. Schnell, T. Iijima, J. S. Lange, M. Starič, T. Bilka, Semen Eidelman, E. Nakano, Vladimir Zhulanov, R. Kroeger, M. Watanabe, B. G. Cheon, T. E. Browder, T. V. Dong, E. Won, R. Pestotnik, M. E. Sevior, I. S. Lee, T. D. Kimmel, A. Kuzmin, E.-J. Jang, P. Goldenzweig, S. Ogawa, E. Prencipe, L. K. Li, C. W. Joo, U. Tamponi, Shih-Chang Lee, T. Kuhr, Tao Luo, S.-J. Cho, K. Chilikin, K. Sumisawa, Daniel Greenwald, F. Tenchini, Y. Iwasaki, Y. J. Kwon, J. H. Yin, C. Kiesling, Seongbae Yang, H. Ono, C. Beleño, E. Waheed, N. Rout, V. Vorobyev, H. Miyata, T. J. Moon, Prafulla Kumar Behera, H. Hayashii, B. G. Fulsom, E. Wang, T. Podobnik, T. Sumiyoshi, H. Park, A. Bozek, D. Matvienko, M. Hernandez Villanueva, M. Merola, Y. Jin, C. H. Wang, S. Paul, H. Kichimi, S. Al Said, Martin Ritter, Tagir Aushev, V. Zhukova, Y. Onuki, Y. Unno, J. Bennett, Z. P. Zhang, H. Ye, M. Bračko, M. Z. Wang, K. Kinoshita, M. Nayak, T. Sanuki, S. Korpar, Saraju P. Mohanty, Seok Kim, D. Kotchetkov, T. Hara, M. Mrvar, Yongsun Kim, H. Atmacan, K. K. Joo, A. Chen, V. Babu, K. Lalwani, Dipak Kumar Sahoo, S. Uno, C. Schwanda, D. Cinabro, H. Nakazawa, Rocky Bala Garg, T. Ferber, Sadaharu Uehara, R. Kulasiri, Phillip Urquijo, Kohei Ogawa, A. Natochii, M. Sumihama, K. Inami, Y. B. Li, Y. Choi, V. Popov, L. Santelj, C. Hadjivasiliou, Y. Sakai, N. Gabyshev, D. Červenkov, G. Pakhlova, L. Li Gioi, P. L. Wang, K. Kumara, M. Uchida, Z. S. Stottler, V. Bhardwaj, Z. Liptak, R. Itoh, A. Rostomyan, Seokhee Park, F. Di Capua, P. Pakhlov, S. Nishida, Z. Natkaniec, P. Lewis, Leo Piilonen, X. P. Xu, K. Lieret, E. Solovieva, John Yelton, Z. Doležal, J. B. Singh, S. K. Choi, V. Shebalin, and S. Patra
Subjects: Physics, Particle physics, Meson, General Physics and Astronomy, Virtual particle, Electron, State (functional analysis), 01 natural sciences, law.invention, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), 010306 general physics, Collider, X(3872)
Abstract: We report the first evidence for $X(3872)$ production in two-photon interactions by tagging either the electron or the position in the final state, exploring the highly virtual photon region. The search is performed in $e^+e^- \rightarrow e^+e^-J/\psi\pi^+\pi^-$, using 825 fb$^{-1}$ of data collected by the Belle detector operated at the KEKB $e^+e^-$ collider. We observe three $X(3872)$ candidates with an expected background of $0.11\pm 0.10$ events, with a significance of 3.2$\sigma$. We obtain an estimated value for $\tilde{\Gamma}_{\gamma\gamma}{\cal B}(X(3872)\rightarrow J/\psi\pi^+\pi^-$) assuming the $Q^2$ dependence predicted by a $c\bar{c}$ meson model, where $-Q^2$ is the invariant mass-squared of the virtual photon. No $X(3915)\rightarrow J/\psi\pi^+\pi^-$ candidates are found.
Published: 2021

13. Track finding at Belle II

Author: Thomas Hauth, Tobias Schlüter, Nils Braun, Nicolas Gosling, Laura Zani, Eugenio Paoloni, Giulio Dujany, Benjamin Schwenker, Cyrille Praz, Valerio Bertacchi, T. Kuhr, Navid Rad, Giulia Casarosa, Armine Rostomyan, Felix Metzner, C. Wessel, B. Scavino, Oliver Frost, Thomas Lueck, Alberto Martini, Michael Eliachevitch, Rudolf Frühwirth, Henrikas Svidras, Yuma Uematsu, Patrick Ecker, Aiqiang Guo, Petar Rados, C. Pulvermacher, M. T. Prim, Martin Ritter, S. Spataro, S. Cunliffe, Claus Kleinwort, Jakob Lettenbichler, M. Heck, Dmitrii Neverov, T. Bilka, Luigi Corona, Uwe Gebauer, F. Tenchini, Sebastian Racs, Sourav Kanti Patra, Filippo Dattola, Giacomo de Pietro, G. Rizzo, James Webb, S. Kurz, Thanh van Dong, Carsten Niebuhr, Michael de Nuccio, Sasha Glazov, Leo Piilonen, Gaetano de Marino, B. Spruck, Jakub Kandra, Mateusz Kaleta, Peter Kvasnicka, Tristan Fillinger, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), and Belle II Tracking Group
Subjects: data analysis method, Physics - Instrumentation and Detectors, Computer science, Real-time computing, FOS: Physical sciences, General Physics and Astronomy, BELLE, Track (rail transport), 01 natural sciences, programming, 010305 fluids & plasmas, High Energy Physics - Experiment, Tracking algorithms, High Energy Physics - Experiment (hep-ex), Tracking detectors, Software, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Belle II, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Spurious relationship, Selection (genetic algorithm), Event reconstruction, business.industry, track data analysis, Instrumentation and Detectors (physics.ins-det), Modular design, Resolution (logic), charged particle, Hardware and Architecture, business, performance
Abstract: Computer physics communications 259, 107610 (2021). doi:10.1016/j.cpc.2020.107610, 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 by North Holland Publ. Co., Amsterdam
Published: 2021

14. Search for Axionlike Particles Produced in e+e− Collisions at Belle II

Author: C. Rosenfeld, R. M. Seddon, S. H. Robertson, H. Ye, S. Kohani, Martin Florian Bessner, Shuji Tanaka, R. Mussa, H. M. Wakeling, J. Serrano, R. Rasheed, H. Svidras, A. Ishikawa, M. Nakao, R. Mizuk, J. Bennett, Kevin Varvell, F. Meggendorfer, M. Reif, L. Zani, D. M. Asner, K. Hayasaka, X. L. Wang, K. Kumara, Z. S. Stottler, V. Chekelian, D. Rodríguez Pérez, K. Chilikin, Richard Peschke, A. Pathak, S. E. Vahsen, D. Tonelli, C. H. Li, E. De La Cruz-Burelo, P. Križan, Ashlie Martini, I. M. Peruzzi, M. De Nuccio, R. Van Tonder, C. H. Kim, H. Aihara, D. Greenwald, F. Müller, C. MacQueen, M. Takizawa, Claudia Cecchi, G. De Nardo, M. T. Hedges, P. Pakhlov, D. Matvienko, B. Spruck, Seokhee Park, Samo Korpar, S. Nishida, A. Sibidanov, Yukinori Sato, Carlos Marinas, M. Hoek, E. J. Jang, F. Bianchi, L. Santelj, Tao Luo, K. Dort, Hitoshi Hirata, Yoshinobu Unno, F. Tenchini, N. Akopov, J. G. Shiu, S. H. Kim, Yongsun Kim, K. Tanida, A. Gaz, J. Baudot, Z. Doležal, A. J. Schwartz, T. Sumiyoshi, C. Kleinwort, C. Wessel, V. Babu, H. Park, H. Nakazawa, B. Gobbo, H. Ono, Florian Urs Bernlochner, C. Schwanda, L. J. Wu, C. Kiesling, Martin Ritter, Dmytro Levit, Elisa Manoni, S. Jia, D. E. Jaffe, A. K. Giri, Abner Soffer, S. Marcello, Soumen Paul, Makoto Tabata, Jakub Kandra, Phillip Urquijo, M. Uchida, K. Chirapatpimol, S. Reiter, S. Watanuki, W. B. Yan, G. De Pietro, E. C. Hill, Semen Eidelman, Felix Metzner, K. Lieret, H. Windel, N. Rout, M. Masuda, B. Scavino, V. Gaur, G. Rizzo, P. Oskin, V. Bhardwaj, M. Bračko, M. Destefanis, L. Li Gioi, Michael Ritzert, T. E. Browder, Marco Milesi, M. Piccolo, E. Ganiev, T. Ferber, A. Garmash, L. Corona, S. J. Cho, M. Campajola, Tagir Aushev, S. Kurz, S. Wehle, U. Gebauer, S. Halder, Y. Ushiroda, Rocky Bala Garg, C. W. Joo, A. Gellrich, S. Bussino, C. Z. Yuan, P. Leitl, F. Dattola, T. V. Dong, D. Liventsev, H. Hayashii, V. Savinov, Y. Maeda, H. Kichimi, M. Welsch, Concettina Sfienti, T. M. G. Kraetzschmar, E. Prencipe, M. Yonenaga, T. Bilka, G. Varner, W. Gradl, Ya-Qiu Jin, R. de Sangro, C. Niebuhr, R. Stroili, T. K. Pedlar, Y. Seino, S. Ogawa, B. G. Cheon, Z. J. Liptak, N. Rad, M. Watanabe, E. Torassa, H. Ozaki, Paul Jackson, Yang Li, M. Wakai, C. Hadjivasiliou, L. M. Cremaldi, L. K. Li, Q. D. Zhou, A. Sangal, A. Rostomyan, J. Wiechczynski, I. Ripp-Baudot, V. Popov, E. Waheed, M. V. Purohit, N. Dash, E. Solovieva, M. Hohmann, A. Selce, T. Kuhr, S. Sandilya, U. Tamponi, E. Paoloni, S. Cunliffe, C.-L. Hsu, Seongbae Yang, C. La Licata, R. Itoh, B. G. Fulsom, A. Hershenhorn, K. Cho, Seema Bahinipati, A. Fodor, S. Bilokin, M. C. Chang, Antonio Budano, D. A. Sanders, G. Dujany, S. Patra, Q. Y. Liu, C. Miller, Y. Sakai, H. G. Moser, M. Z. Wang, K. Kinoshita, A. Panta, Nils Braun, Y-J Kwon, M. Merola, T. Geßler, Pavel Krokovny, D. Dossett, O. Hartbrich, S. Lacaprara, Leo Piilonen, K. Trabelsi, A. Paladino, M. Starič, S. K. Choi, Enrico Bernieri, P. Lewis, S. C. Lee, P. Taras, S. Uno, A. Passeri, I. Komarov, Peter Kodys, W. W. Jacobs, H. Tanigawa, S. Pardi, T. Koga, Kodai Matsuoka, Sw. Banerjee, F. Forti, G. B. Mohanty, Alberto Aloisio, Y. Yusa, A. De Yta-Hernandez, M. Hernandez Villanueva, Y. Kato, D. Ferlewicz, Doo Young Kim, I. Adachi, G. Polat, G. Casarosa, M. Mrvar, M. Bertemes, T. Uglov, M. E. Sevior, I. S. Lee, P. Goldenzweig, S. Fiore, Victoria Zhukova, M. H. A. Nouxman, L. Lanceri, W. Sutcliffe, R. Cheaib, Frank Simon, Yi Fan Hu, A. Vinokurova, R. Manfredi, I. Heredia-De La Cruz, G. Inguglia, N. Anh Ky, P. Branchini, C. H. Wang, E. Graziani, C. Hearty, G. Karyan, P. Gomis, J. F. Strube, D. Červenkov, Sunil Bansal, K. Senyo, D. Biswas, Rakesh Kumar, K. Miyabayashi, D. J. Summers, A. B. Kaliyar, S. Spataro, R. J. Sobie, John Webb, X. P. Xu, L. Vitale, E. Won, Takuya Higuchi, V. Aushev, M. T. Prim, S. Baehr, H. J. Kim, Stefano Longo, Dipak Kumar Sahoo, P. Bambade, Andreas Warburton, F. Meier, Bruce Yabsley, M. Remnev, K. Azmi, F. Abudinén, B. Golob, N. K. Nisar, J. S. Lange, T. D. Kimmel, S. Stefkova, D. Cinabro, R. Giordano, Jürgen Becker, P. Chang, M. Kumar, B. Paschen, Kohei Ogawa, F. Di Capua, A. Natochii, K. Inami, K. Unger, S. Bettarini, J. Libby, I. Nakamura, J. M. Roney, F. Ameli, M. Sumihama, C. Praz, R. Godang, Prafulla Kumar Behera, J. Irakkathil Jabbar, H. E. Cho, and Pere Rados
Subjects: Physics, Range (particle radiation), Particle physics, Gauge boson, Luminosity (scattering theory), Photon, 010308 nuclear & particles physics, General Physics and Astronomy, 01 natural sciences, law.invention, Standard Model, Pseudoscalar, Direct production, law, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Collider
Abstract: We present a search for the direct production of a light pseudoscalar a decaying into two photons with the Belle II detector at the SuperKEKB collider. We search for the process e+e-→γa, a→γγ in the mass range 0.2
Published: 2020

15. Search for B0 decays to invisible final states ( +γ ) at Belle

Author: K. Arinstein, J. Libby, Y. Chao, S. Nishida, A.E. Bondar, Y. Teramoto, C. Ng, K. Senyo, K. Miyabayashi, V. Chekelian, Z. P. Zhang, V. Gaur, M. Shapkin, A.L. Sibidanov, Y. Choi, Z. Doležal, H. O. Kim, S. Uno, Sunmin Ryu, Norihito Muramatsu, E. Nakano, B.A. Shwartz, E. Solovieva, K. T. Kim, H. Miyata, M. Bischofberger, Toru Iijima, T. E. Browder, M. C. Chang, T. Iwashita, G. Varner, Y. Hoshi, R. Gillard, D. M. Asner, G. Tatishvili, Hitoshi Yamamoto, P. Vanhoefer, Peter Kodys, M. Röhrken, K. Chilikin, J. B. Singh, K. Hayasaka, S. E. Vahsen, Jochen Dingfelder, A. Ishikawa, M. Nakao, H. Farhat, C. W. Park, Vladimir Zhulanov, E. Won, H. K. Park, J. Dalseno, Leo Piilonen, M. Iwabuchi, M. E. Sevior, A. Kuzmin, Y. Iwasaki, V. Zhilich, W. S. Hou, O. Schneider, R. Louvot, Frank Simon, H. Park, A. Bozek, Phillip Urquijo, G. B. Mohanty, S. Okuno, Peter Kvasnicka, R. Pestotnik, T. Kawasaki, H. J. Kim, M. Ritter, Y. Usov, T. A. Shibata, V. Vorobyev, J. Li, G. Bonvicini, S. H. Lee, I. Adachi, Z. Drásal, T. Kuhr, S. Esen, B. Bhuyan, Y. S. Sohn, Yasuyuki Horii, C. L. Hsu, M. Uchida, G. Pakhlova, A. M. Bakich, S. Sandilya, D. Liventsev, A. J. Schwartz, Marko Petrič, Hiroaki Aihara, Yang Li, Y. Sakai, T. Julius, Po-Hsun Chen, Yongsun Kim, C. Schwanda, H. J. Hyun, P. Smerkol, H. Sahoo, T. Hara, K. Cho, T. Uglov, J. Haba, R. Itoh, P. Chang, P. Wang, Z. Q. Liu, J. H. Kang, D. Epifanov, Pavel Krokovny, B. G. Cheon, Jung-Hyun Kim, Y. Miyazaki, I. S. Cho, Y. M. Goh, T. Sumiyoshi, James E. Fast, T. K. Pedlar, A. Moll, S. L. Olsen, Samo Korpar, K. M. Williams, T. Sanuki, Semen Eidelman, H. Kichimi, A. Chen, Y. Unno, K. Trabelsi, K. Inami, C. P. Shen, M. Sumihama, B. R. Ko, O. Nitoh, H. Hayashii, Y. B. Hsiung, D. Dutta, M. Watanabe, M. Starič, Y. Watanabe, J. G. Shiu, Tagir Aushev, Y. Yamashita, V.M. Aulchenko, Yueh-Feng Liu, Z. Natkaniec, T. Ohshima, N. Gabyshev, C. Kiesling, M. Bračko, J. B. Kim, Samo Stanič, and Y. J. Kwon
Subjects: Physics, Particle physics, Photon, 010308 nuclear & particles physics, Electron–positron annihilation, Resonance, Photon energy, 01 natural sciences, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, 010306 general physics, Collider
Abstract: We report searches for B0→invisible and B0→invisible+γ decays, where the energy of the photon is required to be larger than 0.5 GeV. These results are obtained from a 711 fb-1 data sample that contains 772×106BB¯ pairs and was collected near the ϒ(4S) resonance with the Belle detector at the KEKB e+e- collider. We observe no significant signal for either decay and set upper limits on their branching fractions at 90% confidence level of B(B0→invisible)
Published: 2020

16. Measurement of R(D) and R(D*) with a Semileptonic Tagging Method

Author: A. K. Giri, M. Masuda, S. E. Vahsen, T. V. Dong, K. Chilikin, Tagir Aushev, P. K. Resmi, C.-L. Hsu, C. Beleño, V. Zhukova, K. Trabelsi, Peter Kodys, W. W. Jacobs, S. Di Carlo, G. Karyan, Y. Onuki, A. M. Bakich, N. Dash, Y. Iwasaki, Y. J. Kwon, M. Iwasaki, T. J. Moon, K. Nakamura, Soumen Paul, H. Ono, B. G. Cheon, R. Mussa, Felix Metzner, O. Schneider, H. B. Jeon, F. Di Capua, G. Schnell, M. Rozanska, N. Gabyshev, D. Červenkov, B. G. Fulsom, Jyoti Prakash Biswal, A. Ishikawa, J. Schueler, A. Rabusov, M. Z. Wang, K. Kinoshita, P. Pakhlov, B. Bhuyan, K. K. Joo, Y. Seino, M. Nakao, Toru Iijima, J. Bennett, S. Sandilya, Seokhee Park, J. F. Krohn, E. Won, R. Pestotnik, S. Nishida, Iki Adachi, J. K. Lee, S. Korpar, Y. Choi, K. J. Nath, T. Kuhr, S. C. Lee, D. Kotchetkov, T. Matsuda, Doo Young Kim, G. De Nardo, M. Bračko, V. Babu, T. Sumiyoshi, T. K. Pedlar, Y. Sakai, Rocky Bala Garg, M. Nayak, Martin Ritter, M. Uchida, P. L. Wang, H. Atmacan, Y. Guan, R. Cheaib, L. K. Li, Leo Piilonen, A. Vossen, T. Ferber, V. Savinov, B.A. Shwartz, W. Sutcliffe, H. J. Kim, K. Cho, A. Chen, Phillip Urquijo, Seema Bahinipati, T. Sanuki, A. Garmash, H. Aihara, Hitoshi Yamamoto, Z. S. Stottler, K. Nishimura, Z. Doležal, Y. B. Li, T. Pang, G. B. Mohanty, M. Starič, Frank Simon, D. Liventsev, C. H. Kim, Vladimir Popov, Vladimir Zhulanov, P. Križan, R. Itoh, R. Kroeger, M. E. Sevior, I. S. Lee, V. Shebalin, S. Patra, G.V. Russo, Kevin Varvell, F. Tenchini, D. Joffe, M. Takizawa, P. Goldenzweig, E. Waheed, C. Z. Yuan, Tao Luo, K. Tanida, M. T. Prim, J. G. Shiu, K. T. Kim, W. S. Hou, K. Lieret, P. Oskin, O. Hartbrich, M. Merola, Pavel Krokovny, T. Uglov, D. Matvienko, J. Wiechczynski, T. Mori, D. Greenwald, S. H. Kim, Y. Usov, H. Hayashii, G. Pakhlova, N. K. Nisar, Rakesh Kumar, H. Park, A. Bozek, Dipak Kumar Sahoo, Luka Santelj, K. Senyo, K. H. Kang, J. H. Yin, L. Li Gioi, Z. P. Zhang, Kohei Ogawa, X. L. Wang, E. Solovieva, V. Chekelian, R. Van Tonder, A. B. Kaliyar, K. Inami, D. Epifanov, J. S. Lange, S. Cunliffe, B. Pal, Seongbae Yang, C. MacQueen, H. Ye, A. J. Schwartz, H. Kichimi, Takeo Higuchi, M. Campajola, V.N. Zhilich, D. Ferlewicz, V. Gaur, K. Miyabayashi, I. Badhrees, E. Prencipe, G. Caria, G. Varner, U. Tamponi, S. Al Said, S. Jia, Y. Jin, O. Grzymkowska, C. H. Wang, T. Bilka, T. E. Browder, S. Uno, C. Schwanda, D. Cinabro, J. Libby, D. M. Asner, K. Hayasaka, Takeo Kawasaki, Shoichi Watanuki, Prafulla Kumar Behera, Bo Wang, H. E. Cho, Andrey Sokolov, G. Inguglia, P. Chang, James E. Fast, Somnath Choudhury, and Semen Eidelman
Subjects: Physics, Semileptonic decay, Particle physics, Muon, Meson, Electron–positron annihilation, High Energy Physics::Phenomenology, General Physics and Astronomy, 01 natural sciences, Standard Model, KEKB, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Bar (unit), Lepton
Abstract: The experimental results on the ratios of branching fractions $\mathcal{R}(D) = {\cal B}(\bar{B} \to D \tau^- \bar{\nu}_{\tau})/{\cal B}(\bar{B} \to D \ell^- \bar{\nu}_{\ell})$ and $\mathcal{R}(D^*) = {\cal B}(\bar{B} \to D^* \tau^- \bar{\nu}_{\tau})/{\cal B}(\bar{B} \to D^* \ell^- \bar{\nu}_{\ell})$, where $\ell$ denotes an electron or a muon, show a long-standing discrepancy with the Standard Model predictions, and might hint to a violation of lepton flavor universality. We report a new simultaneous measurement of $\mathcal{R}(D)$ and $\mathcal{R}(D^*)$, based on a data sample containing $772 \times 10^6$ $B\bar{B}$ events recorded at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB $e^+ e^-$ collider. In this analysis the tag-side $B$ meson is reconstructed in a semileptonic decay mode and the signal-side $\tau$ is reconstructed in a purely leptonic decay. The measured values are $\mathcal{R}(D)= 0.307 \pm 0.037 \pm 0.016$ and $\mathcal{R}(D^*) = 0.283 \pm 0.018 \pm 0.014$, where the first uncertainties are statistical and the second are systematic. These results are in agreement with the Standard Model predictions within $0.2$, $1.1$ and $0.8$ standard deviations for $\mathcal{R}(D)$, $\mathcal{R}(D^*)$ and their combination, respectively. This work constitutes the most precise measurements of $\mathcal{R}(D)$ and $\mathcal{R}(D^*)$ performed to date as well as the first result for $\mathcal{R}(D)$ based on a semileptonic tagging method.
Published: 2020

17. Search for an Invisibly Decaying Z′ Boson at Belle II in e+e−→μ+μ−(e±μ∓) Plus Missing Energy Final States

Author: I. Ripp-Baudot, F. Meggendorfer, V.N. Zhilich, D. Ferlewicz, E. Nakano, G.V. Russo, N. Akopov, S. Nishida, S. Longo, H. M. Wakeling, A. Pathak, M. De Nuccio, Rocky Bala Garg, L. Cao, Nataliia Kovalchuk, B. Spruck, T. J. Moon, T. Iijima, Soumen Paul, Dipak Kumar Sahoo, C. Kleinwort, K. Kumara, S. Fiore, W. B. Yan, Bumho Kim, C. W. Joo, K. Chilikin, Takeo Higuchi, Felix Metzner, Z. S. Stottler, P. Sartori, G. De Pietro, K. Miyabayashi, L. Zani, C. Wessel, N. K. Nisar, M. Bessner, C. Miller, C. Niebuhr, V. Babu, Abner Soffer, B. Scavino, E. Graziani, E. De La Cruz-Burelo, Elisa Manoni, Yang Chen, S. Reiter, R. Peschke, S. Sandilya, H. Windel, Carlos Marinas, M. Wakai, Marco Milesi, J. Baudot, C. Hadjivasiliou, Yoshinobu Unno, C. Hearty, T. Kuhr, H. G. Moser, I. Komarov, M. Bertemes, M. Nishimura, T. V. Dong, N. Taniguchi, J. H. Yin, U. Tamponi, Antonio Budano, Iki Adachi, Doo Young Kim, Agnese Martini, T. Ferber, A. K. Giri, Z. P. Zhang, V. Gaur, L. B. Rizzuto, T. Sumiyoshi, K. K. Joo, R. Godang, J. C. Mei, B. Paschen, S. Bussino, T. K. Pedlar, Soohyun Cho, S. Kurz, Tariq Aziz, Kohei Ogawa, K. Dort, S. Marcello, L. Corona, Prafulla Kumar Behera, Leo Piilonen, P. Taras, K. Azmi, Martin Ritter, Dmytro Levit, M. Masuda, B. Golob, L. Santelj, J. Gemmler, G. Casarosa, S. Wehle, M. Hernandez Villanueva, K. Inami, A. Vossen, G. Dujany, E. C. Hill, V. Aushev, J. S. Lange, A. Paladino, T. Czank, F. Dattola, T. D. Kimmel, S. Dey, D. Biswas, K. Nishimura, Frank Simon, S. E. Vahsen, A. B. Kaliyar, C. Rosenfeld, R. M. Seddon, A. Hershenhorn, A. Fodor, M. Remnev, A. Sangal, Vladimir Popov, J. Schueler, H. Park, A. Bozek, Kiyoshi Tanida, Sw. Banerjee, Felix Mueller, L. K. Li, M. Merola, S. Jia, Y. Iwasaki, Y. Sakai, E. Paoloni, L. Burmistrov, Pavel Krokovny, D. Dossett, P. K. Resmi, C.-L. Hsu, Y. J. Kwon, G. Finocchiaro, A. Panta, K. Lieret, S. Lacaprara, I. Domínguez Jiménez, R. Cheaib, Tagir Aushev, Seongbae Yang, J. Irakkathil Jabbar, Q. Y. Liu, S. Cunliffe, Makoto Tabata, Jakub Kandra, Andreas Warburton, Jürgen Becker, S. Yamada, E. Prencipe, Z. Doležal, N. Rout, V. Zhukova, Y. Onuki, Xiaopeng Zhou, A. De Yta-Hernandez, D. Červenkov, G. B. Mohanty, Alberto Aloisio, Y. Kato, G. Varner, J. F. Strube, M. C. Chang, M. Z. Wang, Peter Kodys, W. W. Jacobs, B. G. Fulsom, Y. Yusa, M. Nayak, B. Oberhof, T. Koga, A. Passeri, C. P. Shen, Y. Kim, P. Branchini, J. Bennett, M. Takizawa, T. Matsuda, K. Senyo, Enrico Bernieri, G. Karyan, L. Lanceri, S. K. Choi, S. Baehr, P. Gomis, Yi Fan Hu, Florian Urs Bernlochner, F. Di Capua, Shuji Tanaka, H. Aihara, E. Solovieva, G. Muroyama, S. Duell, I. M. Peruzzi, P. Oskin, M. Maggiora, Kevin Varvell, H. Atmacan, S. Y. Suzuki, K. Lautenbach, Pere Rados, G. Rizzo, M. Bračko, G. Pakhlova, Y.-T. Chen, M. Destefanis, M. Piccolo, W. Gradl, Y. Onishchuk, Y. Jin, C. H. Wang, D. Greenwald, A. Vinokurova, J. G. Shiu, S. Dubey, I. Heredia-De La Cruz, D. E. Jaffe, S. Bettarini, F. Müller, S. Spataro, O. Hartbrich, H. Ozaki, K. Cho, H. Miyake, K. Trabelsi, S. H. Kim, Y. Guan, K. Unger, P. Pakhlov, M. Eliachevitch, Rakesh Kumar, A. Kuzmin, V. Savinov, T. M. G. Kraetzschmar, F. Bianchi, C. Z. Yuan, M. Campajola, F. Tenchini, Th. Müller, A. Sibidanov, Yukinori Sato, E. Won, R. A. Briere, S. H. Robertson, R. Pestotnik, Kodai Matsuoka, M. Hoek, E. J. Jang, R. Rasheed, V. Chekelian, D. Rodríguez Pérez, K. Kim, H. Hayashii, H. Ono, R. Van Tonder, H. Ye, M. Barrett, R. Mizuk, L. Li Gioi, Y. B. Li, C. H. Kim, G. De Nardo, M. T. Hedges, Yongsun Kim, B. Gobbo, P. Leitl, Hidekazu Kakuno, Concettina Sfienti, S. Uno, R. Stroili, B. G. Cheon, C. Schwanda, L. M. Cremaldi, D. Cinabro, E. Torassa, Claudia Cecchi, M. V. Purohit, S. Korpar, S. C. Lee, T. Hara, F. Forti, T. Geßler, M. Garcia-Hernandez, E. Ganiev, S. Halder, J. M. Roney, M. Yonenaga, M. Sumihama, M. Watanabe, T. E. Browder, H. Kindo, C. Praz, P. Bambade, J. Libby, D. M. Asner, K. Hayasaka, M. T. Prim, Takeo Kawasaki, Andrey Sokolov, A. Gaz, James E. Fast, Semen Eidelman, J. Kahn, F. Meier, R. Mussa, H. B. Jeon, Bruce Yabsley, S. Stefkova, R. Giordano, G. Inguglia, A. Ishikawa, G. Nazaryan, Y. Seino, M. Kumar, M. Nakao, Somnath Choudhury, P. Križan, S. Kohani, Y. Ushiroda, M. Uchida, Tao Luo, A. Gellrich, Y. Maeda, T. Tsuboyama, D. Matvienko, Q. D. Zhou, J. Wiechczynski, C. La Licata, B.A. Shwartz, M. Starič, D. Liventsev, T. Morii, R. Kroeger, I. S. Lee, P. Goldenzweig, N. Anh Ky, R. de Sangro, Z. Liptak, P. Ahlburg, W. A. T. Wan Abdullah, D. J. Summers, R. Itoh, A. Rostomyan, R. J. Sobie, John Webb, L. Vitale, J. Kumar, D. Neverov, A. Selce, and Vikas Bansal
Subjects: Physics, Coupling constant, Particle physics, Missing energy, Physics beyond the Standard Model, General Physics and Astronomy, 01 natural sciences, law.invention, law, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Collider, Boson
Abstract: Theories beyond the standard model often predict the existence of an additional neutral boson, the Z′. Using data collected by the Belle II experiment during 2018 at the SuperKEKB collider, we perform the first searches for the invisible decay of a Z′ in the process e+e-→μ+μ-Z′ and of a lepton-flavor-violating Z′ in e+e-→e±μZ′. We do not find any excess of events and set 90% credibility level upper limits on the cross sections of these processes. We translate the former, in the framework of an Lμ-Lτ theory, into upper limits on the Z′ coupling constant at the level of 5×10-2-1 for MZ′≤6 GeV/c2.
Published: 2020

18. Belle2VR: An Interactive Virtual Reality Visualization of GEANT4 Event Histories

Author: George E. Glasson, Zachary Duer, and Leo Piilonen
Subjects: Event (computing), Human–computer interaction, Physics, QC1-999, Visibility (geometry), Timeline, Animation, Subatomic particle, Zoom, Virtual reality, Visualization
Abstract: Belle2VR is a novel interactive virtual reality visualization of the Belle II detector at KEK and the animation therein of GEANT4-simulated event histories. The user, wearing a VR headset, manipulates a gamepad or hand controller(s) to interact with and interrogate the detailed GEANT4 event history over time, to adjust the visibility and transparency of the particles and detector subsystems, to translate freely in 3D, to zoom in or out, and to control the event-history timeline. In this way, the user explores the world of subatomic physics via electron-positron collision events in the Belle II experiment at the SuperKEKB colliding-beam facility at KEK in Japan. Developed at Virginia Tech by an interdisciplinary team of researchers in physics, education, and virtual environments, the simulation is intended to be integrated into the undergraduate physics curriculum.
Published: 2020

19. First search for the ηc2(1D) in B decays at Belle

Author: F. Di Capua, P. Pakhlov, H. Aihara, J. Biswal, Tagir Aushev, S. Nishida, R. Mussa, M. Uchida, W. B. Yan, Z. Natkaniec, C. MacQueen, Leo Piilonen, V. Zhukova, Y. Onuki, L. K. Li, K. Sumisawa, V. Bhardwaj, M. Iwasaki, B. G. Cheon, K. Nishimura, C.-L. Hsu, J. H. Yin, G. Schnell, Pavel Krokovny, S. Cunliffe, M. C. Chang, H. Hayashii, P. L. Wang, A. Ishikawa, Y. Seino, M. Nakao, C. Kiesling, G. Pakhlova, T. K. Pedlar, A. Sangal, T. Kuhr, P. Križan, T. Mori, Y. Usov, Y. Choi, B. Golob, K. Trabelsi, K. Lieret, V.M. Aulchenko, Z. S. Stottler, R. Itoh, V. Savinov, Rok Pestotnik, A. Rostomyan, M. Campajola, N. K. Nisar, Prafulla Kumar Behera, V. Popov, V. Gaur, K. Belous, Andrey Sokolov, Peter Kodys, W. W. Jacobs, J. S. Lange, T. D. Kimmel, S. K. Choi, M. Mrvar, Z. P. Zhang, T. Sumiyoshi, M. Bračko, M. Z. Wang, T. Podobnik, E. Solovieva, Jia-ju Zhang, A. B. Kaliyar, M. Hernandez Villanueva, K. Kinoshita, Y. Iwasaki, Martin Ritter, N. Dash, V. Babu, Y. J. Kwon, T. Sanuki, J. Schueler, N. Gabyshev, D. Červenkov, Shih-Chang Lee, N. Rout, Y. Sakai, Phillip Urquijo, G. Varner, X. P. Xu, P. Oskin, E. Prencipe, L. Cao, T. Ferber, M. Nayak, G. Karyan, B. G. Fulsom, James E. Fast, K. Senyo, Seokhee Park, Rocky Bala Garg, Samo Korpar, C. H. Kim, Y. B. Li, S. Al Said, Luka Santelj, V.N. Zhilich, Semen Eidelman, Sadaharu Uehara, L. Li Gioi, A. Garmash, Y. Kato, D. Ferlewicz, W. Sutcliffe, K. Chilikin, G. De Nardo, T. J. Moon, A. Chen, Soumen Paul, C. Beleño, H. Park, A. Bozek, K. Miyabayashi, M. Shapkin, Kohei Ogawa, S. Patra, Kiyoshi Tanida, E. Wang, M. Röhrken, G.V. Russo, K. Inami, R. Kulasiri, Yongsun Kim, Yoshinobu Unno, W. S. Hou, Z. Doležal, K. Lalwani, S. Uno, C. Schwanda, D. Cinabro, A. K. Giri, K. K. Joo, E. Won, V. Chekelian, M. Merola, G. B. Mohanty, M. Masuda, D. Matvienko, B.A. Shwartz, T. V. Dong, C. Z. Yuan, M. Starič, D. Liventsev, M. Takizawa, Vladimir Zhulanov, K.-H. Kim, R. Kroeger, I. S. Lee, P. Goldenzweig, V. Vorobyev, S. Jia, Y. Jin, O. Grzymkowska, C. H. Wang, H. Ye, T. Bilka, M. Watanabe, T. E. Browder, T. Matsuda, G. Bonvicini, J. Libby, D. M. Asner, K. Hayasaka, A. Vinokurova, J. G. Shiu, O. Hartbrich, S. H. Kim, Rakesh Kumar, M. T. Prim, Takeo Kawasaki, Shoichi Watanuki, D. Epifanov, S. Pardi, Seongbae Yang, G. Inguglia, Somnath Choudhury, J. Bennett, T. Uglov, A. Kuzmin, E.-J. Jang, S. Ogawa, F. Tenchini, R. Ayad, K. Cho, Seema Bahinipati, Iki Adachi, Doo Young Kim, H. Ono, R. Mizuk, 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), Belle, Collaboration, Campajola, M., De Nardo, G., Di Capua, F., Merola, M., Pardi, S., Russo, G., and Et, Al.
Subjects: +charmed+meson+K%2B%22">B+ --> charmed meson K+, Analytical chemistry, +charmed+meson+pi%2B+K0%28S%29%22">B+ --> charmed meson pi+ K0(S), annihilation [electron positron], 01 natural sciences, High Energy Physics - Experiment, e +e − experiments, Experiment, 10.57 GeV-cms, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics, [PHYS]Physics [physics], B0: hadronic decay, e+-e- Experiments, e, B+: branching ratio: upper limit, e +-e − Experiments, electron positron: colliding beams, Quarkonium, 3. Good health, +charmed+meson+K0%28S%29%22">B0 --> charmed meson K0(S), electroproduction [Upsilon(10570)], colliding beams [electron positron], radiative decay [charmed meson], quarkonium, Nuclear and High Energy Physics, spectroscopy, Upsilon(10570): electroproduction, Meson, +photon+h%2Fc%283526%29%22">charmed meson --> photon h/c(3526), BELLE, electron positron: annihilation, +, KEKB, KEK-B, 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, ddc:530, +charmed+meson+K%2B+pi%22">B0 --> charmed meson K+ pi, 010306 general physics, hadronic decay [B0], mesons, 010308 nuclear & particles physics, h/c(3526), branching ratio: upper limit [B+], B0: branching ratio: upper limit, −, Resonance, e(+)-e(-) experiments, charmed meson: radiative decay, B+: hadronic decay, lcsh:QC770-798, hadronic decay [B+], branching ratio: upper limit [B0], experimental results
Abstract: Journal of high energy physics 2020(5), 34 (2020). doi:10.1007/JHEP05(2020)034, The first dedicated search for the η$_{c2}$(1D) is carried out using the decays B$^{+}$→ η$_{c2}$(1D)K$^{+}$, B$^{0}$ → η$_{c2}$(1D)$ {K}_S^0 $, B$^{0}$→ η$_{c2}$(1D)π$^{−}$K$^{+}$, and B$^{+}$→ η$_{c2}$(1D)π$^{+} {K}_S^0 $ with η$_{c2}$(1D) → h$_{c}$γ. No significant signal is found. For the η$_{c2}$(1D) mass range between 3795 and 3845 MeV/c$^{2}$, the branching-fraction upper limits are determined to be ℬ(B$^{+}$→ η$_{c2}$(1D)K$^{+}$) × ℬ(η$_{c2}$(1D) → h$_{c}$γ) < 3.7 × 10$^{−5}$, ℬ(B$^{0}$→ η$_{c2}$(1D)K$^{0}$) × ℬ(η$_{c2}$(1D) → h$_{c}$γ) < 3.5 × 10$^{−5}$, ℬ(B$^{0}$→ η$_{c2}$(1D)π$^{−}$K$^{+}$) × ℬ(η$_{c2}$(1D) → h$_{c}$γ) < 1.0 × 10$^{−4}$, and ℬ(B$^{+}$→ η$_{c2}$(1D)π$^{+} {K}_S^0 $) × ℬ(η$_{c2}$(1D) → h$_{c}$γ) < 1.1 × 10$^{−4}$ at 90% C.L. The analysis is based on the 711 fb$^{−1}$ data sample collected on the ϒ(4S) resonance by the Belle detector, which operated at the KEKB asymmetric-energy e$^{+}$e$^{−}$ collider.[graphic not available: see fulltext], Published by SISSA, [Trieste]
Published: 2020

20. Belle2VR: An Interactive Virtual Reality Visualization of GEANT4 Event Histories

Author: Leo Piilonen
Abstract: I describe a novel interactive virtual reality visualization of the Belle II detector at KEK and the animation therein of GEANT4-simulated event histories. Belle2VR runs on Oculus and Vive headsets (as well as in a web browser and on 2D computer screens, in the absence of a headset). A user with some particle-physics knowledge manipulates a gamepad or hand controller(s) to interact with and interrogate the detailed GEANT4 event history over time, to adjust the visibility and transparency of the detector subsystems, to translate freely in 3D, to zoom in or out, and to control the event-history timeline (scrub forward or backward, speed up or slow down). A non-expert uses the app - during public outreach events, for example - to explore the world of subatomic physics via electron-positron collision events in the Belle II experiment at the SuperKEKB colliding-beam facility at KEK in Japan. Multiple simultaneous users, wearing untethered locomotive VR backpacks and headsets, walk about a room containing the virtual model of the Belle II detector and each others' avatars as they observe and control the simulated event history. Developed at Virginia Tech by an interdisciplinary team of researchers in physics, education, and virtual environments, the simulation is intended to be integrated into the undergraduate physics curriculum. I describe the app, including visualization features and design decisions, and illustrate how a user interacts with its features to expose the underlying physics in each electron-positron collision event.
Published: 2019
Full Text: View/download PDF

21. Measurement of the CKM matrix element |Vcb| from B0→D*−ℓ+νℓ at Belle

Author: H. Ye, R. Mizuk, K. Chilikin, C. Beleño, S. Al Said, R. Mussa, P. C. Lu, H. B. Jeon, P. Goldenzweig, A. Ishikawa, S. Sandilya, Jihwa Lee, G. Pakhlova, M. Nakao, A. Kuzmin, R. Kulasiri, P. Križan, K. Inami, K. T. Kim, S. K. Choi, Jyoti Prakash Biswal, M. Merola, S. Ogawa, M. Starič, I. Adachi, J. G. Shiu, S. Jia, S. Uno, C. Schwanda, D. Y. Kim, A. K. Giri, M. Salehi, E. Waheed, O. Grzymkowska, C. H. Wang, Y-J Kwon, A. Garmash, Phillip Urquijo, V. Gaur, D. Epifanov, S. Paul, M. Masuda, V. Bansal, G. B. Mohanty, R. Kroeger, D. Cinabro, J. E. Fast, M. E. Sevior, D. Dossett, H. Miyata, G. Schnell, F. Tenchini, M. Nayak, J. MacNaughton, D. Matvienko, T. Bilka, G. Inguglia, Tao Luo, Andrey Sokolov, R. B. Garg, E. Prencipe, K. Tanida, B. Bhuyan, G. Varner, Ya-Qiu Jin, Seokhee Park, Y. Iwasaki, T. Sumiyoshi, Samo Korpar, R. Ayad, K. Cho, H. Hayashii, P. K. Behera, P. Chang, T. Sanuki, M. Campajola, T. Kuhr, B. Golob, C.-L. Hsu, C. H. Kim, K. Nishimura, B. Shwartz, B. G. Fulsom, T. E. Browder, A. Bobrov, Peter Kodys, V.N. Zhilich, D. Ferlewicz, N. K. Nisar, W. W. Jacobs, O. Schneider, G. Bonvicini, J. S. Lange, K. Senyo, Somnath Choudhury, M. Z. Wang, K. Kinoshita, S. Pardi, A. Vinokurova, C. H. Li, Z. S. Stottler, H. E. Cho, M. T. Hedges, V.E. Shebalin, T. Kawasaki, T. Uglov, S. Di Carlo, K. Miyabayashi, I. Badhrees, S. Cunliffe, Semen Eidelman, G. Karyan, A. B. Kaliyar, M. Niiyama, Tagir Aushev, M. Uchida, J. Schueler, J. Libby, L. K. Li, V. Savinov, E. Won, H. Ono, I. Nakamura, Kevin Varvell, D. Liventsev, H. Atmacan, T. Mori, H. Aihara, K. Adamczyk, G.V. Russo, Y. Usov, Toru Iijima, A. Rostomyan, P. Wang, D. M. Asner, K. Hayasaka, W. S. Hou, V. Chekelian, Y. Unno, Z. P. Zhang, Y. Seino, B. K. Pal, M. T. Prim, P. Pakhlov, S. Nishida, Z. Natkaniec, H. Park, A. Bozek, Motoki Iwasaki, D. Kotchetkov, Y. Sakai, K. Lieret, E. Solovieva, Leo Piilonen, D. Joffe, Seongbae Yang, A. Vossen, O. Seon, Frank Simon, Vladimir Popov, M. Takizawa, Z. Doležal, B. G. Cheon, J. Haba, V. Babu, S. C. Lee, Pavel Krokovny, K. Trabelsi, R. Pestotnik, J. Kahn, C. P. Shen, Seok Kim, Victoria Zhukova, A. Chen, Felix Metzner, K. K. Joo, Yang Li, T. V. Dong, Y. Choi, K. J. Nath, T. Hara, Y. Yusa, D. Červenkov, J. F. Strube, Samo Stanič, Florian Urs Bernlochner, M. Bračko, and L. Li Gioi
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Cabibbo–Kobayashi–Maskawa matrix, Branching fraction, Electron–positron annihilation, Electroweak interaction, 01 natural sciences, 0103 physical sciences, Heavy quark effective theory, Matrix element, 010306 general physics, Two-form, Lepton
Abstract: We present a new measurement of the Cabibbo-Kobayashi-Maskawa matrix element |Vcb| from B0→D*-l+νl decays, reconstructed with the full Belle data set of 711 fb−1 integrated luminosity. Two form factor parametrizations, originally conceived by the Caprini-Lellouch-Neubert (CLN) and the Boyd, Grinstein and Lebed (BGL) groups, are used to extract the product F(1)ηEW|Vcb| and the decay form factors, where F(1) is the normalization factor and ηEW is a small electroweak correction. In the CLN parametrization we find F(1)ηEW|Vcb|=(35.06±0.15±0.56)×10-3, ρ2=1.106±0.031±0.007, R1(1)=1.229±0.028±0.009, R2(1)=0.852±0.021±0.006. For the BGL parametrization we obtain F(1)ηEW|Vcb|=(34.93±0.23±0.59)×10-3, which is consistent with the world average when correcting for F(1)ηEW. The branching fraction of B0→D*-l+νl is measured to be B(B0→D*-l+νl)=(4.90±0.02±0.16)%. We also present a new test of lepton flavor universality violation in semileptonic B decays, B(B0→D*-e+ν)B(B0→D*-μ+ν)=1.01±0.01±0.03. The errors quoted correspond to the statistical and systematic uncertainties, respectively. This is the most precise measurement of F(1)ηEW|Vcb| and form factors to date and the first experimental study of the BGL form factor parametrization in an experimental measurement.
Published: 2019

22. Evidence for B+→hcK+ and observation of ηc(2S)→pp¯π+π−

Author: C. MacQueen, Y. Iwasaki, S. Nishida, O. Schneider, S. Cunliffe, P. C. Lu, R. Mizuk, K. Chilikin, C. Beleño, N. Gabyshev, D. Červenkov, A. Ishikawa, A. Chen, G. Schnell, D. M. Asner, K. Hayasaka, M. Nakao, D. Matvienko, M. Campajola, C.-L. Hsu, Peter Kodys, W. W. Jacobs, Zdenek Dolezal, S. Di Carlo, G. Karyan, U. Tamponi, A. K. Giri, J. S. H. Lee, M. Masuda, G. B. Mohanty, L. Cao, Y. Seino, Rahul Kumar, S. Jia, J. F. Strube, Y. Kato, P. Goldenzweig, S. Sandilya, F. Tenchini, Babu, M. Merola, Z. P. Zhang, Samo Korpar, T. Sumiyoshi, Jia-ju Zhang, Shoichi Watanuki, Martin Ritter, K. Inami, M. Starič, Sudhanwa Patra, K. Miyabayashi, I. Badhrees, Savinov, T. Sanuki, H. Ono, K. K. Joo, G. Pakhlova, Leo Piilonen, D. Cinabro, D. Joffe, R. Kulasiri, O. Grzymkowska, C. H. Wang, D. Y. Kim, Popov, M. Z. Wang, K. Kinoshita, S. Paul, Seongbae Yang, M. Nayak, T. Julius, Yang Li, T. V. Dong, Y. Choi, K. J. Nath, Aulchenko, R. Pestotnik, C. Kiesling, R. B. Garg, G. Varner, B. G. Fulsom, Frank Simon, T. E. Browder, T. Hara, Ya-Qiu Jin, B. G. Cheon, M. Bračko, Jyoti Prakash Biswal, Gaur, G.V. Russo, Andrey Sokolov, Y-J Kwon, H. Ye, J. K. Lee, S. Pardi, Bansal, K. Senyo, K. Lalwani, S. Uno, K. Nishimura, C. Schwanda, Li Gio, L[Li Gio, L.], H. Hayashii, W. S. Hou, D. Kotchetkov, J. Haba, R. Kroeger, J. MacNaughton, C. H. Kim, R. Ayad, K. Cho, M. E. Sevior, Massimo Berger, M. Uchida, Semen Eidelman, Z. S. Stottler, L. K. Li, D. Liventsev, J. E. Fast, Zhilich, Y. Sakai, Tao Luo, T. Mori, Y. Usov, R. Itoh, K. Tanida, C. Z. Yuan, A. Rostomyan, P. Wang, Zhukova, I. Adachi, M. Salehi, E. Solovieva, S. C. Lee, T. Bilka, R. Van Tonder, B. K. Pal, M. Watanabe, P. Pakhlov, T. Ferber, H. Park, A. Bozek, J. G. Shiu, Phillip Urquijo, J. H. Yin, Pavel Krokovny, N. K. Nisar, Bhardwaj, J. S. Lange, A. B. Kaliyar, K. Trabelsi, C. P. Shen, Seok Kim, E. Won, T. Matsuda, A. Vinokurova, D. Epifanov, A.E. Bondar, M. Takizawa, John Yelton, T. K. Pedlar, S. K. Choi, A. Garmash, Motoki Iwasaki, M. Gelb, Chekelian, P. K. Behera, W. Sutcliffe, Tagir Aushev, Y. Onuki, M. Niiyama, J. Libby, Bo Wang, A. Bobrov, and B. Shwartz
Subjects: Physics, KEKB, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, 0103 physical sciences, Pi, Analytical chemistry, Resonance, Invariant mass, 010306 general physics, 01 natural sciences, Bar (unit)
Abstract: A search for the decays B+→hcK+ and B0→hcKS0 is performed. Evidence for the decay B+→hcK+ is found; its significance is 4.8σ. No evidence is found for B0→hcKS0. The branching fraction for B+→hcK+ is measured to be (3.7-0.9+1.0 -0.8+0.8)×10-5; the upper limit for the B0→hcKS0 branching fraction is 1.4×10-5 at 90% C.L. In addition, a study of the pp¯π+π- invariant mass distribution in the channel B+→(pp¯π+π-)K+ results in the first observation of the decay ηc(2S)→pp¯π+π- with 12.1σ significance. The analysis is based on the 711 fb-1 data sample collected by the Belle detector at the asymmetric-energy e+e- collider KEKB at the ϒ(4S) resonance.
Published: 2019

23. Transverse momentum dependent production cross sections of charged pions, kaons and protons produced in inclusive e+e− annihilation at s=10.58 GeV

Author: X. L. Wang, R. Van Tonder, B. K. Pal, R. B. Garg, A. Bozek, D. Epifanov, Soumya D. Mohanty, M. Uchida, L. K. Li, P. Goldenzweig, M. Lubej, G. Pakhlova, D. Liventsev, V. Bhardwaj, S. Sandilya, U. Tamponi, M. Nayak, M. Sumihama, Motoki Iwasaki, H. Hayashii, Hyunyong Kim, C. H. Kim, S. Jia, C. Kiesling, Victoria Zhukova, A. Chen, M. Takizawa, Takuro Sanuki, B. G. Cheon, T. Uglov, Pavel Krokovny, Kiyoshi Tanida, G. Schnell, T. Iijima, Somnath Choudhury, D. Matvienko, M. Z. Wang, Shih-Chang Lee, T. K. Pedlar, S. Pardi, E. Solovieva, K. Chilikin, R. Itoh, Jihwa Lee, John Yelton, T. Matsuda, Z. Doležal, Y. Jin, M. Bračko, K. Lalwani, A. Rostomyan, O. Grzymkowska, C. H. Wang, T. V. Dong, Y. Choi, K. J. Nath, S. Uno, S. Paul, L. Li Gioi, P. Wang, L. Santelj, C. Schwanda, B. Shwartz, Seokhee Park, J. G. Shiu, T. Kuhr, J. B. Kim, T.-A. Shibata, M. Starič, C. P. Shen, D. Kotchetkov, D. Cinabro, Seok Kim, R. Mussa, R. Kroeger, M. E. Sevior, I. S. Lee, Y. Sakai, A. M. Bakich, H. Ye, W. Sutcliffe, Tagir Aushev, Y. Onuki, E. Won, S. Korpar, A. Ishikawa, Tao Luo, R. Pestotnik, Y. Iwasaki, J. Libby, D. M. Asner, Y. J. Kwon, A. Garmash, V. Gaur, Y. Seino, K. Hayasaka, Z. Drásal, V. Bansal, P. Križan, V. M. Aulchenko, V.N. Zhilich, K. Inami, O. Schneider, P. Pakhlov, T. Ferber, H. Kichimi, Z. S. Stottler, Leo Piilonen, D. Joffe, A. Kuzmin, M. V. Purohit, Massimo Berger, M. Merola, Andrey Sokolov, N. Gabyshev, D. Červenkov, K. Miyabayashi, P. K. Behera, Seongbae Yang, B. G. Fulsom, A. Vossen, S. Nishida, G. Varner, K. Nishimura, C. Z. Yuan, E. Nakano, T. Nakano, K. Senyo, K. K. Joo, E. Prencipe, J. K. Ahn, T. Kawasaki, Z. Natkaniec, Vladimir Popov, J. E. Fast, S. Ogawa, F. Tenchini, Semen Eidelman, Phillip Urquijo, M. Gelb, E. Waheed, Sudhanwa Patra, Y. B. Li, C. H. Li, T. Bilka, M. Watanabe, V.E. Shebalin, A. B. Kaliyar, J. Schueler, G.V. Russo, W. S. Hou, T. Sumiyoshi, J. H. Yin, Dmytro Levit, B. Golob, J. S. Lange, R. Kulasiri, T. Julius, R. Seidl, S. Cunliffe, Peter Kodys, W. W. Jacobs, S. Di Carlo, A. K. Giri, M. Masuda, R. Ayad, K. Cho, L. Cao, S. Uehara, C. Beleño, H. Ono, R. Mizuk, Y. Unno, Iki Adachi, Doo Young Kim, M. Salehi, Bo Wang, H. Aihara, A. Bobrov, Y. Tao, T. Mori, Y. Usov, H. E. Cho, Z. P. Zhang, Jyoti Prakash Biswal, J. K. Lee, M. Nakao, and J. MacNaughton
Subjects: Physics, Annihilation, 010308 nuclear & particles physics, Scattering, Electron–positron annihilation, Nuclear Theory, Hadron, Thrust, 01 natural sciences, 7. Clean energy, Nuclear physics, Transverse plane, Pion, KEKB, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We report measurements of the production cross sections of charged pions, kaons, and protons as a function of fractional energy, the event-shape variable called thrust, and the transverse momentum with respect to the thrust axis. These measurements access the transverse momenta created in the fragmentation process, which are of critical importance to the understanding of any transverse-momentum-dependent distribution and fragmentation functions. The low transverse-momentum part of the cross sections can be well described by Gaussians in transverse momentum as is generally assumed but the fractional-energy dependence is nontrivial and different hadron types have varying Gaussian widths. The width of these Gaussians decreases with thrust and shows an initially rising, then decreasing fractional-energy dependence. The widths for pions and kaons are comparable within uncertainties, while those for protons are significantly narrower. These single-hadron cross sections and Gaussian widths are obtained from a 558 fb-1 data sample collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.
Published: 2019

24. Search for the B→Y(4260)K , Y(4260)→J/ψπ+π− decays

Author: M. Takizawa, Takuro Sanuki, Pavel Krokovny, Y. Iwasaki, V.N. Zhilich, Y. J. Kwon, R. Mussa, S. Cunliffe, P. C. Lu, H. B. Jeon, Leo Piilonen, O. Schneider, D. Joffe, B. G. Fulsom, Seongbae Yang, S. Nishida, K. Trabelsi, A. Ishikawa, Vladimir Popov, G. Pakhlova, Y. Seino, P. K. Resmi, C. P. Shen, Seok Kim, P. Križan, C.-L. Hsu, N. Gabyshev, D. Červenkov, Y. B. Li, M. Nayak, M. Uchida, Victoria Zhukova, C. Z. Yuan, L. K. Li, C. H. Li, Z. P. Zhang, V. Babu, D. Liventsev, K. Miyabayashi, B. G. Cheon, G. Schnell, A. Chen, E. Prencipe, Andrey Sokolov, X. L. Wang, G.V. Russo, S. Sandilya, J. Haba, M. Sumihama, K. Nishimura, Motoki Iwasaki, Z. Drásal, V. V. Zhulanov, K. K. Joo, Peter Kodys, W. W. Jacobs, S. Korpar, Sudhanwa Patra, T. Matsuda, R. Itoh, R. Van Tonder, J. K. Ahn, W. S. Hou, N. Dash, Seema Bahinipati, T. V. Dong, Y. Choi, K. J. Nath, B. K. Pal, A. Rostomyan, T. Kuhr, P. Wang, S. Di Carlo, T. K. Pedlar, Semen Eidelman, R. B. Garg, Kiyoshi Tanida, J. G. Shiu, Y. Sakai, Tagir Aushev, Y. Onuki, T. Julius, A. Garmash, H. Miyata, John Yelton, Z. Doležal, Jyoti Prakash Biswal, V. Bansal, Bo Wang, J. B. Kim, V. M. Aulchenko, A. B. Kaliyar, M. Bračko, K. Chilikin, M. Merola, J. K. Lee, K. Senyo, A. Bobrov, V. Bhardwaj, T. Kawasaki, Rahul Kumar, J. Schueler, T. Sumiyoshi, H. E. Cho, M. Nakao, C. Beleño, J. B. Singh, Shih-Chang Lee, S. K. Choi, E. Won, J. MacNaughton, V.E. Shebalin, R. Pestotnik, S. Jia, A. Bozek, P. Pakhlov, H. Aihara, Kevin Varvell, J. H. Yin, A. K. Giri, Y. Jin, V. Gaur, O. Grzymkowska, C. H. Wang, M. Masuda, S. Paul, B. Golob, T. Mori, J. E. Fast, Y. Usov, G. B. Mohanty, J. S. Lange, L. Cao, G. Varner, T. Bilka, S. Al Said, M. Watanabe, L. Li Gioi, S. Uno, C. Schwanda, T.-A. Shibata, H. Ye, D. Cinabro, K. Prasanth, D. Kotchetkov, E. Solovieva, K. Inami, M. Z. Wang, K. Kinoshita, H. Hayashii, R. Ayad, K. Cho, Iki Adachi, Doo Young Kim, M. Salehi, H. Ono, R. Mizuk, S. Pardi, Y. Unno, M. Starič, R. Kroeger, J. Libby, D. M. Asner, M. E. Sevior, K. Hayasaka, G. Inguglia, Z. S. Stottler, Tao Luo, S. Ogawa, F. Tenchini, H. Kichimi, E. Waheed, T. Uglov, and D. Matvienko
Subjects: Physics, Particle physics, KEKB, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Invariant mass, 010306 general physics, 01 natural sciences
Abstract: We report the results of a search for the B→Y(4260)K, Y(4260)→J/ψπ+π- decays. This study is based on a data sample corresponding to an integrated luminosity of 711 fb-1, collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We investigate the J/ψπ+π- invariant mass distribution in the range 4.0 to 4.6 GeV/c2 using both B+→J/ψπ+π-K+ and B0→J/ψπ+π-KS0 decays. We find excesses of events above the background levels, with significances of 2.1 and 0.9 standard deviations for charged and neutral B→Y(4260)K decays, respectively, taking into account the systematic uncertainties. These correspond to upper limits on the product of branching fractions, B(B+→Y(4260)K+)×B(Y(4260)→J/ψπ+π-)
Published: 2019

25. Observation of Transverse Λ/Λ¯ Hyperon Polarization in e+e− Annihilation at Belle

Author: Vikas Bansal, I. Badhrees, H. Aihara, C. Van Hulse, S. Hirose, A. M. Bakich, Z. Natkaniec, A. Zupanc, T. Matsuda, S. Uno, N. Gabyshev, D. Červenkov, T. Sumiyoshi, S. E. Vahsen, G. Pakhlova, Rocky Bala Garg, Eberhard Widmann, R. Mussa, H. B. Jeon, J. K. Ahn, M. Niiyama, T. Mori, Y. Iwasaki, Y. J. Kwon, T. A. Shibata, H. Miyata, Y. Usov, G. Bonvicini, A. Ishikawa, Y. Seino, M. Nakao, Prafulla Kumar Behera, P. Križan, C. Beleño, M. Iwasaki, O. Schneider, Jyoti Prakash Biswal, M. Z. Wang, K. Kinoshita, G. Schnell, D. Matvienko, Byung Gu Cheon, I. Jaegle, R. Ayad, T. Iijima, L. Li Gioi, T. Julius, B. G. Fulsom, S. Al Said, A. Vinokurova, J. G. Shiu, H. Park, K. Cho, W. Sutcliffe, Yoshinobu Unno, A. Bozek, Vladimir Popov, Shih-Chang Lee, G. B. Mohanty, J. F. Strube, T. Kuhr, K. Senyo, S. H. Kim, Massimo Berger, R. Seidl, R. Itoh, B. Bhuyan, C. Kiesling, M. Nayak, Dipak Kumar Sahoo, Peter Kodys, C. Z. Yuan, W. W. Jacobs, T. E. Browder, K. H. Kang, S. Sandilya, Y. Yusa, S. Korpar, G.V. Russo, S. Cunliffe, H. J. Kim, D. Joffe, A. Bobrov, M. Bračko, E. Prencipe, M. Uchida, M. Gelb, L. K. Li, S. Di Carlo, T. K. Pedlar, V. Savinov, M. Salehi, N. K. Nisar, M. Takizawa, A. Garmash, Y. Guan, Andrey Sokolov, D. Epifanov, A. K. Giri, A. Chen, V. Bhardwaj, B. Pal, Z. P. Zhang, K. Inami, W. S. Hou, M. Masuda, M. Merola, C. Schwanda, Iki Adachi, James E. Fast, Doo Young Kim, D. Cinabro, K. Chilikin, V. Babu, T. V. Dong, L. Cao, Y. Choi, K. J. Nath, Semen Eidelman, X. L. Wang, Tagir Aushev, V. Chekelian, L. Santelj, J. B. Kim, V. Vorobyev, R. Van Tonder, Eleonora Guido, Phillip Urquijo, A. Rostomyan, P. Wang, T. Ferber, E. Won, V.E. Shebalin, Y. Sakai, R. Pestotnik, H. Hayashii, Z. Drásal, Y. B. Li, V. Gaur, J. H. Yin, V.M. Aulchenko, G. Varner, Ken Suzuki, Soumen Paul, H. Ono, R. Mizuk, H. Atmacan, B. Golob, H. K. Moon, J. S. Lange, Takuro Sanuki, Kiyoshi Tanida, R. Kulasiri, K. K. Joo, Pavel Krokovny, M. Sumihama, John Yelton, Z. Doležal, K. T. Kim, T. Bilka, S. K. Choi, C. P. Shen, Tara Nanut, T. Uglov, H. Ye, A. Kuzmin, S. Ogawa, F. Tenchini, U. Tamponi, E. Waheed, S. Jia, J. Libby, D. M. Asner, K. Hayasaka, Y. Jin, C. H. Wang, Takeo Kawasaki, Shoichi Watanuki, S. Pardi, S. Okuno, M. Lubej, G. Inguglia, V. Zhukova, P. Chang, J. Haba, P. Pakhlov, Tao Luo, S. Nishida, Bingran Wang, A. Rabusov, K. Adamczyk, Jochen Dingfelder, M. Starič, D. Liventsev, Vladimir Zhulanov, R. Kroeger, M. E. Sevior, I. S. Lee, P. Goldenzweig, N. Dash, D. Kotchetkov, Leo Piilonen, A. Vossen, O. Seon, Frank Simon, E. Solovieva, and V.N. Zhilich
Subjects: Physics, Particle physics, Annihilation, Electron–positron annihilation, Hyperon, General Physics and Astronomy, Polarization (waves), Lambda, 01 natural sciences, Belle experiment, Nuclear physics, Transverse plane, 0103 physical sciences, Fragmentation function, 010306 general physics
Abstract: We report the first observation of the spontaneous polarization of Λ and Λ[over ¯] hyperons transverse to the production plane in e^{+}e^{-} annihilation, which is attributed to the effect arising from a polarizing fragmentation function. For inclusive Λ/Λ[over ¯] production, we also report results with subtracted feed-down contributions from Σ^{0} and charm. This measurement uses a dataset of 800.4 fb^{-1} collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV. We observe a significant polarization that rises with the fractional energy carried by the Λ/Λ[over ¯] hyperon.
Published: 2019

26. First measurement of the CKM angle ϕ$_{3}$ withS B$^{\pm}$ → D($ {K}_{\mathrm{S}}^0 $π$^{+}$+π$^{-}$π$^{0}$) K$^{\pm}$ decays

Author: C. MacQueen, S. Sandilya, B.A. Shwartz, Y. Guan, T. Bilka, Bingran Wang, A. J. Schwartz, T. Uglov, H. Aihara, T. K. Pedlar, M. Starič, D. Liventsev, T. Matsuda, M. Campajola, G. Inguglia, Z. S. Stottler, R. Kroeger, M. E. Sevior, V.N. Zhilich, K. Miyabayashi, I. Badhrees, A. Vinokurova, J. G. Shiu, H. Ye, P. Goldenzweig, M. Bračko, S. H. Kim, Iki Adachi, Tao Luo, E. Prencipe, Shih-Chang Lee, Y. Usov, Rakesh Kumar, K. H. Kang, J. Bennett, N. K. Nisar, G. Schnell, T. Iijima, James E. Fast, S. Al Said, G. De Nardo, Y. Iwasaki, Y. J. Kwon, Rok Pestotnik, J. Biswal, Z. P. Zhang, V. Babu, Semen Eidelman, M. Iwasaki, Doo Young Kim, A. K. Giri, H. E. Cho, O. Schneider, T. Nakano, B. G. Fulsom, D. Epifanov, M. Niiyama, P. C. Lu, H. B. Jeon, A. Ishikawa, U. Tamponi, T. Kuhr, B. Pal, B. G. Cheon, T. Sumiyoshi, D. Matvienko, P. Krǐzan, M. Z. Wang, Y. Seino, Somnath Choudhury, M. Nakao, T. Ferber, G. Pakhlova, K. Kinoshita, Martin Ritter, Seongbae Yang, N. Dash, Y. Jin, C. H. Wang, Pavel Krokovny, V. Shebalin, G.V. Russo, C. P. Shen, W. S. Hou, T. Sanuki, S. Cunliffe, A. Kuzmin, S. Ogawa, F. Tenchini, J. F. Strube, F. Di Capua, D. Kotchetkov, S. Uno, C. Schwanda, D. Cinabro, V. Gaur, C. Kiesling, M. Masuda, T. V. Dong, P. K. Resmi, J. Libby, H. Hayashii, Dipak Kumar Sahoo, Luka Santelj, P. Pakhlov, K. Senyo, K. Cho, D. M. Asner, K. Hayasaka, G. Varner, M. T. Prim, Takeo Kawasaki, Shoichi Watanuki, S. Pardi, K. Inami, A. Garmash, K. Trabelsi, Peter Kodys, W. W. Jacobs, M. Uchida, Tagir Aushev, V. Zhukova, Y. Onuki, M. Merola, A. B. Kaliyar, Y. B. Li, Leo Piilonen, V.M. Aulchenko, S. Di Carlo, G. Karyan, V. Bhardwaj, H. K. Moon, A. M. Bakich, R. Itoh, C. Beleño, A. Vossen, K. Nishimura, N. Gabyshev, D. Červenkov, Rocky Bala Garg, B. Golob, Y. Choi, K. J. Nath, K. Lieret, M. Nayak, E. Solovieva, S. Nishida, Y. Sakai, A. Chen, G. B. Mohanty, D. Joffe, M. Takizawa, M. Röhrken, V. Vorobyev, E. Won, Kiyoshi Tanida, Z. Doležal, K. T. Kim, X. L. Wang, R. Van Tonder, H. Park, A. Bozek, B. Bhuyan, V. Savinov, K. Huang, H. Ono, and R. Mizuk
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Unitarity, Meson, 010308 nuclear & particles physics, Resonance, 01 natural sciences, Flavor, Amplitude ratio, Amplitude, angle, CP, 0103 physical sciences, e+-e, CP violation, CKM, ddc:530, gamma, violation, 010306 general physics, Experiments
Abstract: We present the first model-independent measurement of the CKM unitarity triangle angle ϕ 3 using B ± → D( $$ {K}_{\mathrm{S}}^0 $$ K S 0 π + π − π 0) K ± decays, where D indicates either a D 0 or $$ \overline{D} $$ D ¯ 0 meson. Measurements of the strong-phase difference of the D → $$ {K}_{\mathrm{S}}^0 $$ K S 0 π + π − π 0 amplitude obtained from CLEO-c data are used as input. This analysis is based on the full Belle data set of 772 × 106 B $$ \overline{B} $$ B ¯ events collected at the Υ(4S) resonance. We obtain ϕ 3 = ( $$ {5.7}_{-8.8}^{+10.2} $$ 5.7 − 8.8 + 10.2 ±3.5±5.7) ° and the suppressed amplitude ratio r B = 0.323±0.147±0.023±0.051. Here the first uncertainty is statistical, the second is the experimental systematic, and the third is due to the precision of the strong-phase parameters measured from CLEO-c data. The 95% confidence interval on ϕ 3 is (−29.7, 109.5) ° , which is consistent with the current world average.
Published: 2019

27. Belle II virtual reality projects

Author: Leo Piilonen, T. Kuhr, and Michael Bender
Subjects: geography, Cave automatic virtual environment, geography.geographical_feature_category, Physics, QC1-999, 020207 software engineering, 02 engineering and technology, Virtual reality, law.invention, Outreach, Cave, law, Computer graphics (images), 0202 electrical engineering, electronic engineering, information engineering, Collider, Implementation
Abstract: The Belle II experiment, based in Japan, is designed for the precise measurement of B- and charm-meson as well as τ-lepton decays and is intended to play an important role in the search for physics beyond the Standard Model. To visualize the collected data, amongst other things, virtual reality (VR) appli-cations are used within the collaboration. In addition to the already existing VR application which runs on a head-mounted display (HMD), an implementation for the cave automatic virtual environment (CAVE) has been created, where the CAVE is an immersive VR environment, in which projectors are directed to up to six walls of a room-sized cube. These VR applications allow for the inspection of the Belle II detector itself, as well as the illustration of GEANT4 simulated (and data) events of the electron-positron collisions occurring at the SuperKEKB collider. The VR implementations are not only limited to the use within the Belle II collaboration, but are a helpful tool in education and outreach activities.
Published: 2019

28. A Roadmap for HEP Software and Computing R&D for the 2020s

Author: Robert Currie, A.A. Alves, Armin Michael Nairz, A. Valassi, Hadrien Grasland, Nurcan Ozturk, Gianluca Cerminara, Davide Costanzo, Gabriel Perdue, G Lima, W. Pokorski, Renaud Vernet, Jürgen Reuter, Marian Babik, Glenn Patrick, Giacomo Govi, David Crooks, Sergio F Novaes, Mihaly Novak, Paul Laycock, Eric Lancon, J. R. G. Fernandez, Torben Ferber, Steven Farrell, Nicolo Magini, Josh Mcfayden, Sean Murray, Gordon Watts, B. K. Jashal, Isidro Gonzalez Caballero, Jacob Linacre, Frank Wuerthwein, Margaret Votava, Dirk Duellmann, Alessandra Forti, Peter van Gemmeren, Patricia Mendez Lorenzo, Jan Iven, Giovanni Franzoni, Charles Leggett, Sw. Banerjee, T. Kuhr, Markus Schulz, Alberto Ribon, Christopher Tunnell, Valentin Kuznetsov, Roger Jones, Frank Winklmeier, Claudio Grandi, Peter Elmer, Sünje Dallmeier-Tiessen, Gordon Stewart, Giordon Stark, Benedikt Hegner, Giuseppe Bagliesi, Catrin Bernius, Burt Holzman, Nguyen Anh-Ky, Alex Pearce, Gancho Dimitrov, Ian Bird, H. Schellman, Scott Snyder, Gloria Corti, Walter Lampl, Edward Moyse, E. Cogneras, Alexei Klimentov, Frederic Derue, Taylor Childers, K. Genser, J. Cranshaw, Manuel Giffels, Andrew Buckley, Shawn McKee, Marilena Bandieramonte, C. Bozzi, Adam L. Lyon, Heather Gray, Oliver Keeble, Todor Ivanov, Vakhtang Tsulaia, Daniel S. Katz, Gerhard Raven, Renato Santana, Agnieszka Dziurda, Marco Clemencic, Borut Paul Kerševan, Philip Chang, Johannes Elmsheuser, Carl Vuosalo, Gian Piero Siroli, Javier Cervantes Villanueva, Daniele Bonacorsi, Mark Hodgkinson, Vladimir Gligorov, Graeme A. Stewart, L. Grillo, Jakob Blomer, Markus Klute, Kevin Pedro, Michela Paganini, Sabine Crépé-Renaudin, Marko Bracko, G. Cosmo, Eduardo Rodrigues, Dmitri Konstantinov, Kaushik De, Jose Benito Gonzalez Lopez, Oliver Gutsche, Miron Livny, Farah Hariri, Teng Li, Laurent Duflot, U. Tamponi, Alaettin Serhan Mete, Jose M Hernandez, Frank Jm Geurts, Ulrik Egede, Jose Flix, Richard Mount, G. Andronico, Dario Menasce, David Lange, Steven Schramm, Vardan Gyurjyan, Lukas Heinrich, Maria Girone, Dorian Kcira, Giulio Eulisse, Alberto Sánchez-Hernández, Francesco Polci, Antonio Boveia, T. J. Smith, Peter Clarke, Ivan Glushkov, Stewart Martin-Haugh, Jeff Templon, H. Meinhard, James Robinson, David Colling, Jean-Roch Vlimant, Michael Kagan, Luca Atzori, Riccardo-Maria Bianchi, Douglas Benjamin, Kyle Cranmer, S. Fuess, Andre Sailer, Sofia Vallecorsa, Gianpaolo Carlino, Torre Wenaus, Gang Chen, Salvatore Di Guida, Soon Yung Jun, Tomas Lindén, Giacomo Tenaglia, Grigori Rybkine, Michael H. Seymour, Albert De Roeck, Simone Campana, Mario Lassnig, Andrea Sartirana, B. Viren, Andrea Formica, Leo Piilonen, John Harvey, Birgit Lewendel, Panagiotis Spentzouris, Sally Seidel, Andrea Sciabà, Stefano Belforte, Dave Dykstra, Leonardo Cristella, Douglas Gingrich, Lorenzo Moneta, Gerardo Ganis, Lorenzo Rinaldi, Meghan Kane, Zhang Xiao-Mei, John Apostolakis, Bodhitha Jayatilaka, M. D. Sokoloff, Thomas Hauth, Carlos Vázquez Sierra, Laurent Bernard Aphecetche, Xingtao Huang, Kajari Mazumdar, R. Mehdiyev, Antonio María Pérez-Calero Yzquierdo, Thomas McCauley, Mike Williams, M. S. Neubauer, Michael Hildreth, Stefan Roiser, Stefano Giagu, Peter Zahariev Hristov, Anyes Taffard, A. Petzold, Martin Barisits, Edward Karavakis, Jing-Ge Shiu, Alessandro Di Girolamo, Jim Kowalkowski, Andreas Heiss, Tai Sakuma, V. Daniel Elvira, Jeremy Coles, Davide Sgalaberna, Johannes Albrecht, James Chapman, Tomasz Bold, Antonio Delgado Peris, Robert Gardner, Andrew McNab, Christoph Wissing, Romain Wartel, Sandro Christian Wenzel, Ian Fisk, Vladimir Ivanchenko, Ian Collier, Peter Love, Andres Pacheco Pages, Jim Pivarski, Edoardo Martelli, Vincent R. Pascuzzi, Michel Jouvin, Hartmut Stadie, Makoto Asai, Albert Puig Navarro, Gunter Quast, Troels Petersen, Wahid Bhimji, Brian Bockelman, Andrej Filipcic, B. Pearson, Stefan Hoeche, Luca Perrozzi, Jaroslava Schovancova, Z. Marshall, Marco Cattaneo, Vincent Garonne, Hannah Short, Danilo Piparo, Liviu Valsan, Lothar A. T. Bauerdick, Gareth Roy, Horst Severini, A. Oyanguren, Francesco Giacomini, Kenneth Bloom, A. Gellrich, Marko Petrič, Efe Yazgan, Samuel Cadellin Skipsey, Andrea Dotti, W. Gohn, Wen Guan, Tommaso Boccali, C. Biscarat, Katarzyna Maria Dziedziniewicz-Wojcik, L. Kreczko, Simon George, Arturo Sánchez, Philippe Canal, Illya Shapoval, Caterina Doglioni, Ilya Komarov, Nuno Filipe Castro, Patrick Koppenburg, Jérôme Pansanel, Pere Mato, Wei Yang, Paolo Calafiura, Sezen Sekmen, C. Voss, David Britton, Thomas Hartmann, Guilherme Amadio, Andrew Norman, Michel De Cian, James Letts, Sebastian Lopienski, David Rousseau, Andrew Hanushevsky, Jamie Shiers, Andrei Gheata, Martin Ritter, Karolos Potamianos, Elizabeth Sexton-Kennedy, Michele Michelotto, Luca Canali, Cedric Serfon, Beate Heinemann, Giuseppe Lo Presti, J. Piedra, Fernanda Psihas, Ben Couturier, Robert K. Kutschke, Jovan Mitrevski, Charles William Kalderon, Benjamin Wynne, B. Morgan, Frank Gaede, Mihaela Gheata, Michael H Kirby, P. Buncic, Eric Wayne Vaandering, James Frost, Conor Fitzpatrick, Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - Faculté des Sciences et des Techniques, Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre de Calcul de l'IN2P3 (CC-IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), HEP Software Foundation, Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), 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), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Argonne National Laboratory, Brookhaven National Laboratory, Centro Brasileiro de Pesquisas Físicas, Centre de Calcul de l’IN2P3, University of Wisconsin-Madison, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Cinvestav, INFN, Center for High Performance Computing, California Institute of Technology, Cornell University, Deutsches Elektronen-Synchrotron, École Polytechnique Fédérale de Lausanne (EPFL), ETH Zürich-Institute for Particle Physics and Astrophysics (IPA), Fermi National Accelerator Laboratory, University of Hamburg, Helsinki Institute of Physics, International Center for Theoretical Physics, Institut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona and ICREA, CSIC-Universidad de Cantabria, Centro Mixto Universidad de Valencia-CSIC, Chinese Academy of Sciences, Indiana University, Università di Bologna, Politecnico di Bari, Università di Catania, Università e INFN Ferrara, INFN Sezione di Genova, INFN Sezione di Milano-Bicocca, Università di Napoli, Scuola Normale Superiore di Pisa, Università di Padova b, Università La Sapienza, Università di Trieste, INFN Sezione di Torino, IPHC UMR 7178, Imperial College London, CEA Saclay (Commissariat à l’Énergie Atomique), Newport News, Jožef Stefan Institute, Karlsruhe Institute of Technology, Faculty of Physics and Applied Computer Science, Kyungpook National University, Université Paris-Sud and CNRS/IN2P3, Lawrence Berkeley National Laboratory and University of California, Laboratório de Instrumentação e Física Experimental de Partículas (LIP), Université Paris-Saclay, Ludwig-Maximilians-Universität München, CNRS/IN2P3, Institut National Polytechnique de Grenoble, Massachusetts Institute of Technology, Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), University of Copenhagen, Nikhef National Institute for Subatomic Physics, New York University, University of Oregon, Universitat Autònoma de Barcelona (UAB), High Energy Physics (IHEP), STFC Rutherford Appleton Laboratory, Royal Holloway University of London, SLAC National Accelerator Laboratory, Simons Foundation, SoundCloud, CNRS-IN2P3, National Taiwan University, Tata Institute of Fundamental Research, Technische Universität Dortmund, University of Alberta, University of Arizona, University of Bristol, University of British Columbia, University of California Irvine, San Diego, University of Cambridge, University of Cape Town, Carleton University, University of Illinois Urbana-Champaign, University of Chicago, University of Cincinnati, Duke University, University of Edinburgh, Gangneung-Wonju National University, Université de Genève, University of Glasgow, Ruprecht-Karls-Universitat Heidelberg, University of Kentucky, Lancaster University, Jožef Stefan Institute and University of Ljubljana, Lunds Universitet, University of Manchester, University of Maribor, University of Massachusetts, The University of Michigan, Universidade do Minho, University of Nebraska-Lincoln, University of New Mexico, University of Notre Dame, University of Oklahoma, The Ohio State University, University of Oslo, Universidad de Oviedo, Oxford University, University of Pittsburgh, Princeton University, Rice University, Universidade Estadual Paulista (UNESP), University of Washington, Shandong University, University of Sheffield, University of Sofia, The University of Texas at Arlington, National Research Tomsk Polytechnic University, University of Toronto, Università di Udine, University of Warwick, Yale University, Universität Zürich, Vietnam Academy of Science and Technology (VAST), Virginia Tech, Vrije Universiteit Amsterdam, CERN, Albrecht, Johanne, Alves, Antonio Augusto, Amadio, Guilherme, Andronico, Giuseppe, Anh-Ky, Nguyen, Aphecetche, Laurent, Apostolakis, John, Asai, Makoto, Atzori, Luca, Babik, Marian, Bagliesi, Giuseppe, Bandieramonte, Marilena, Banerjee, Sunanda, Barisits, Martin, Bauerdick, Lothar A. T., Belforte, Stefano, Benjamin, Dougla, Bernius, Catrin, Bhimji, Wahid, Bianchi, Riccardo Maria, Bird, Ian, Biscarat, Catherine, Blomer, Jakob, Bloom, Kenneth, Boccali, Tommaso, Bockelman, Brian, Bold, Tomasz, Bonacorsi, Daniele, Boveia, Antonio, Bozzi, Concezio, Bracko, Marko, Britton, David, Buckley, Andy, Buncic, Predrag, Calafiura, Paolo, Campana, Simone, Canal, Philippe, Canali, Luca, Carlino, Gianpaolo, Castro, Nuno, Cattaneo, Marco, Cerminara, Gianluca, Cervantes Villanueva, Javier, Chang, Philip, Chapman, John, Chen, Gang, Childers, Taylor, Clarke, Peter, Clemencic, Marco, Cogneras, Eric, Coles, Jeremy, Collier, Ian, Colling, David, Corti, Gloria, Cosmo, Gabriele, Costanzo, Davide, Couturier, Ben, Cranmer, Kyle, Cranshaw, Jack, Cristella, Leonardo, Crooks, David, Crépé-Renaudin, Sabine, Currie, Robert, Dallmeier-Tiessen, Sünje, De, Kaushik, De Cian, Michel, De Roeck, Albert, Delgado Peris, Antonio, Derue, Frédéric, Di Girolamo, Alessandro, Di Guida, Salvatore, Dimitrov, Gancho, Doglioni, Caterina, Dotti, Andrea, Duellmann, Dirk, Duflot, Laurent, Dykstra, Dave, Dziedziniewicz-Wojcik, Katarzyna, Dziurda, Agnieszka, Egede, Ulrik, Elmer, Peter, Elmsheuser, Johanne, Elvira, V. Daniel, Eulisse, Giulio, Farrell, Steven, Ferber, Torben, Filipcic, Andrej, Fisk, Ian, Fitzpatrick, Conor, Flix, José, Formica, Andrea, Forti, Alessandra, Franzoni, Giovanni, Frost, Jame, Fuess, Stu, Gaede, Frank, Ganis, Gerardo, Gardner, Robert, Garonne, Vincent, Gellrich, Andrea, Genser, Krzysztof, George, Simon, Geurts, Frank, Gheata, Andrei, Gheata, Mihaela, Giacomini, Francesco, Giagu, Stefano, Giffels, Manuel, Gingrich, Dougla, Girone, Maria, Gligorov, Vladimir V., Glushkov, Ivan, Gohn, Wesley, Gonzalez Lopez, Jose Benito, González Caballero, Isidro, González Fernández, Juan R., Govi, Giacomo, Grandi, Claudio, Grasland, Hadrien, Gray, Heather, Grillo, Lucia, Guan, Wen, Gutsche, Oliver, Gyurjyan, Vardan, Hanushevsky, Andrew, Hariri, Farah, Hartmann, Thoma, Harvey, John, Hauth, Thoma, Hegner, Benedikt, Heinemann, Beate, Heinrich, Luka, Heiss, Andrea, Hernández, José M., Hildreth, Michael, Hodgkinson, Mark, Hoeche, Stefan, Holzman, Burt, Hristov, Peter, Huang, Xingtao, Ivanchenko, Vladimir N., Ivanov, Todor, Iven, Jan, Jashal, Brij, Jayatilaka, Bodhitha, Jones, Roger, Jouvin, Michel, Jun, Soon Yung, Kagan, Michael, Kalderon, Charles William, Kane, Meghan, Karavakis, Edward, Katz, Daniel S., Kcira, Dorian, Keeble, Oliver, Kersevan, Borut Paul, Kirby, Michael, Klimentov, Alexei, Klute, Marku, Komarov, Ilya, Konstantinov, Dmitri, Koppenburg, Patrick, Kowalkowski, Jim, Kreczko, Luke, Kuhr, Thoma, Kutschke, Robert, Kuznetsov, Valentin, Lampl, Walter, Lancon, Eric, Lange, David, Lassnig, Mario, Laycock, Paul, Leggett, Charle, Letts, Jame, Lewendel, Birgit, Li, Teng, Lima, Guilherme, Linacre, Jacob, Linden, Toma, Livny, Miron, Lo Presti, Giuseppe, Lopienski, Sebastian, Love, Peter, Lyon, Adam, Magini, Nicolò, Marshall, Zachary L., Martelli, Edoardo, Martin-Haugh, Stewart, Mato, Pere, Mazumdar, Kajari, McCauley, Thoma, McFayden, Josh, McKee, Shawn, McNab, Andrew, Mehdiyev, Rashid, Meinhard, Helge, Menasce, Dario, Mendez Lorenzo, Patricia, Mete, Alaettin Serhan, Michelotto, Michele, Mitrevski, Jovan, Moneta, Lorenzo, Morgan, Ben, Mount, Richard, Moyse, Edward, Murray, Sean, Nairz, Armin, Neubauer, Mark S., Norman, Andrew, Novaes, Sérgio, Novak, Mihaly, Oyanguren, Arantza, Ozturk, Nurcan, Pacheco Pages, Andre, Paganini, Michela, Pansanel, Jerome, Pascuzzi, Vincent R., Patrick, Glenn, Pearce, Alex, Pearson, Ben, Pedro, Kevin, Perdue, Gabriel, Perez-Calero Yzquierdo, Antonio, Perrozzi, Luca, Petersen, Troel, Petric, Marko, Petzold, Andrea, Piedra, Jónatan, Piilonen, Leo, Piparo, Danilo, Pivarski, Jim, Pokorski, Witold, Polci, Francesco, Potamianos, Karolo, Psihas, Fernanda, Puig Navarro, Albert, Quast, Günter, Raven, Gerhard, Reuter, Jürgen, Ribon, Alberto, Rinaldi, Lorenzo, Ritter, Martin, Robinson, Jame, Rodrigues, Eduardo, Roiser, Stefan, Rousseau, David, Roy, Gareth, Rybkine, Grigori, Sailer, Andre, Sakuma, Tai, Santana, Renato, Sartirana, Andrea, Schellman, Heidi, Schovancová, Jaroslava, Schramm, Steven, Schulz, Marku, Sciabà, Andrea, Seidel, Sally, Sekmen, Sezen, Serfon, Cedric, Severini, Horst, Sexton-Kennedy, Elizabeth, Seymour, Michael, Sgalaberna, Davide, Shapoval, Illya, Shiers, Jamie, Shiu, Jing-Ge, Short, Hannah, Siroli, Gian Piero, Skipsey, Sam, Smith, Tim, Snyder, Scott, Sokoloff, Michael D., Spentzouris, Panagioti, Stadie, Hartmut, Stark, Giordon, Stewart, Gordon, Stewart, Graeme A., Sánchez, Arturo, Sánchez-Hernández, Alberto, Taffard, Anye, Tamponi, Umberto, Templon, Jeff, Tenaglia, Giacomo, Tsulaia, Vakhtang, Tunnell, Christopher, Vaandering, Eric, Valassi, Andrea, Vallecorsa, Sofia, Valsan, Liviu, Van Gemmeren, Peter, Vernet, Renaud, Viren, Brett, Vlimant, Jean-Roch, Voss, Christian, Votava, Margaret, Vuosalo, Carl, Vázquez Sierra, Carlo, Wartel, Romain, Watts, Gordon T., Wenaus, Torre, Wenzel, Sandro, Williams, Mike, Winklmeier, Frank, Wissing, Christoph, Wuerthwein, Frank, Wynne, Benjamin, Xiaomei, Zhang, Yang, Wei, Yazgan, Efe, and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])
Subjects: Nuclear and High Energy Physics, HEP, software, computing, big science, HL-LHC, Ciências Naturais::Ciências Físicas, Process (engineering), Computer science, Data management, Ciências Físicas [Ciências Naturais], Other Fields of Physics, FOS: Physical sciences, Software performance testing, Computing & software upgrade, Software performance, 01 natural sciences, programming, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), White paper, Software, 0103 physical sciences, Machine learning, Computer Science (miscellaneous), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [INFO]Computer Science [cs], 010306 general physics, activity report, Complement (set theory), Particle physics, HL-LHC, computing & software upgrade, software performance, machine learning, hep-ex, 010308 nuclear & particles physics, business.industry, Computational Physics (physics.comp-ph), 113 Computer and information sciences, Investment (macroeconomics), Upgrade, physics.comp-ph, data management, ddc:004, business, Software engineering, Physics - Computational Physics, Particle Physics - Experiment
Abstract: Computing and software for big science 3(1), 7 (2019). doi:10.1007/s41781-018-0018-8, Particle physics has an ambitious and broad experimental programme for the coming decades. This programme requires large investments in detector hardware, either to build new facilities and experiments, or to upgrade existing ones. Similarly, it requires commensurate investment in the R&D of software to acquire, manage, process, and analyse the shear amounts of data to be recorded. In planning for the HL-LHC in particular, it is critical that all of the collaborating stakeholders agree on the software goals and priorities, and that the efforts complement each other. In this spirit, this white paper describes the R&D activities required to prepare for this software upgrade., Published by Springer International Publishing, Cham, Switzerland
Published: 2019

29. Search for the rare decay of B+→ℓ+νℓγ with improved hadronic tagging

Author: Victoria Zhukova, Y. Yusa, J. Gemmler, Eberhard Widmann, J. F. Strube, A. Chen, M. Nayak, M. Gelb, A. Rostomyan, X. L. Wang, G. Varner, B. G. Cheon, V. Chekelian, Ya-Qiu Jin, Jihwa Lee, R. Mizuk, R. Van Tonder, B. K. Pal, M. Takizawa, G. Schnell, S. Al Said, M. Merola, J. Haba, Z. Doležal, R. B. Garg, B. Bhuyan, B. G. Fulsom, W. Sutcliffe, T. Kuhr, V. Babu, K. Chilikin, C. Beleño, D. Y. Kim, J. H. Yin, A. Garmash, Daniel Greenwald, S. C. Lee, T. Ferber, Tagir Aushev, S. K. Choi, S. Uno, V. Savinov, C. Schwanda, Felix Metzner, D. Epifanov, N. K. Nisar, Samo Stanič, V. Bansal, J. G. Shiu, R. Pestotnik, J. S. Lange, K. K. Joo, P. Pakhlov, Phillip Urquijo, Pavel Krokovny, A. Frey, T. Uglov, P. K. Behera, V. V. Zhulanov, Yang Li, K. Senyo, T. Kawasaki, T. K. Pedlar, P. Goldenzweig, T. V. Dong, Y. Choi, Peter Kodys, W. W. Jacobs, K. J. Nath, T. Hara, L. Santelj, Jyoti Prakash Biswal, M. Uchida, F. Tenchini, C. Z. Yuan, W. S. Hou, J. Kahn, C. P. Shen, Semen Eidelman, Seok Kim, S. Sandilya, D. Liventsev, H. Miyata, E. Prencipe, R. Mussa, T. Sumiyoshi, P. C. Lu, G. Russo, V.N. Zhilich, S. Di Carlo, A. Ishikawa, M. Nakao, Martin Ritter, R. Itoh, P. Križan, A. B. Kaliyar, Florian Urs Bernlochner, P. Wang, C. Kiesling, K. Miyabayashi, I. Badhrees, Bo Wang, T. Sanuki, A. K. Giri, M. Starič, G. Pakhlova, S. Nishida, M. Masuda, R. Kulasiri, G. B. Mohanty, Z. Natkaniec, J. Schueler, E. Won, B. Shwartz, L. Cao, A. Bobrov, M. Bračko, H. Atmacan, N. Gabyshev, D. Červenkov, M. Sumihama, Motoki Iwasaki, S. Cunliffe, Y. Iwasaki, O. Schneider, J. K. Lee, V. Gaur, Deepak Kumar Sahoo, M. Niiyama, J. Libby, J. MacNaughton, Kevin Varvell, L. Li Gioi, H. Ye, Y. Tao, T. Mori, H. Aihara, J. E. Fast, Z. P. Zhang, M. Watanabe, S. Jia, T.-A. Shibata, C. H. Wang, S. Paul, K. Inami, M. Mrvar, Leo Piilonen, D. Joffe, H. Hayashii, Hyunyong Kim, S. Zakharov, Seongbae Yang, M. Z. Wang, Nils Braun, O. Seon, Frank Simon, Vladimir Popov, Y. Sakai, N. Dash, E. Solovieva, D. Kotchetkov, Y-J Kwon, R. Kroeger, M. E. Sevior, I. S. Lee, Tao Luo, K. Tanida, H. Kichimi, R. Ayad, K. Cho, S. Pardi, D. Cinabro, Y. Unno, I. Adachi, G. Inguglia, M. Salehi, Somnath Choudhury, D. M. Asner, M. Lubej, K. Hayasaka, Y. Seino, M. T. Prim, Shoichi Watanuki, A. Kuzmin, S. Ogawa, Samo Korpar, and H. Yamamoto
Subjects: Physics, Particle physics, Muon, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Photon energy, 01 natural sciences, Belle experiment, 0103 physical sciences, High Energy Physics::Experiment, B meson, 010306 general physics, Lepton
Abstract: We present the result of the search for the rare B meson decay of B+ -> l(+)nu e gamma with l = e, mu. For the search the full data set recorded by the Belle experiment of 711 fb(-1) integrated luminosity near the Upsilon(4S) resonance is used. Signal candidates are reconstructed for photon energies E-gamma larger than 1 GeV using a novel multivariate tagging algorithm. The novel algorithm fully reconstructs the second B meson produced in the collision using hadronic modes and was specifically trained to recognize the signal signature in combination with hadronic tag-side B meson decays. This approach greatly enhances the performance. Background processes that can mimic this signature, mainly charmless semileptonic decays and continuum processes, are suppressed using multivariate methods. The number of signal candidates is determined by analyzing the missing mass squared distribution as inferred from the signal side particles and the kinematic properties of the tag-side B meson. No significant excess over the background-only hypothesis is observed and upper limits on the partial branching fraction Delta B with E-gamma > 1 GeV individually for electron and muon final states as well as for the average branching fraction of both lepton final states are reported. We find a Bayesian upper limit of Delta B(B+ -> l(+)nu el) 0.24 GeV at 90% CL.
Published: 2018

30. First Evidence for cos2β>0 and Resolution of the Cabibbo-Kobayashi-Maskawa Quark-Mixing Unitarity Triangle Ambiguity

Author: V. B. Golubev, K. Chilikin, L. Zani, J. R. Wilson, Iki Adachi, T. S. Miyashita, Doo Young Kim, A. Palano, S. Emery, M. Feindt, J. B. Kim, K. Griessinger, D. Epifanov, A. Hafner, W. R. Innes, David Hutchcroft, O. Long, R. Cenci, Brian Meadows, J. M. Izen, M. Bellis, Eleonora Guido, H. Neal, K. Inami, H. Ye, R. Kass, S. Martellotti, D. W G S Leith, G. Schnell, E. Won, R. Pestotnik, S. Nishida, A. Calcaterra, J. P. Coleman, J. A. McKenna, T. E. Browder, J. Ocariz, M. T. Graham, F. Ferroni, R. J. Sobie, A. Roodman, S. Pardi, J. L. Ritchie, Noritaka Shimizu, Vikas Bansal, Eleonora Luppi, A. Beaulieu, Tara Nanut, T. Uglov, A. V. Gritsan, G. Wormser, A. G. Denig, Vitaly Vorobyev, B. N. Ratcliff, R. Y. So, T. Kuhr, S. R. Wagner, G. De Nardo, H. M. Lacker, M. Starič, D. Liventsev, E. Nakano, Z. Drásal, V. Savinov, D. J. Summers, C. H. Cheng, H. Ono, D. A. Roberts, S. Al Said, T. Matsuda, A. J S Smith, D. S. Chao, Vladimir Zhulanov, R. Kroeger, E. Ben-Haim, M. E. Sevior, I. S. Lee, S. J. Sekula, C. Bozzi, R. Mizuk, M. Piccolo, F. Di Lodovico, S. Uno, R. Kulasiri, T. Schroeder, A. J. Lankford, S. Sandilya, R. Godang, P. Goldenzweig, P. Pakhlov, N. Tasneem, J. Albert, G.V. Russo, J. Cochran, Yu. G. Kolomensky, H. Hayashii, J. Libby, C. Van Hulse, T. A. Shibata, Z. C. Huard, U. Tamponi, S. Passaggio, H. Miyata, B. Pal, Y. B. Li, Marcin Chrzaszcz, F. Le Diberder, Michael Sokoloff, Ray Franklin Cowan, P. C. Kim, F. U. Bernlochner, P. Patteri, Prafulla Kumar Behera, W. S. Hou, I. M. Peruzzi, B. Oberhof, F. Simonetto, J. G. Shiu, G. J. King, V. Babu, K. T. Kim, J. K. Ahn, A. Soffer, M. Z. Wang, K. Kinoshita, B. Bhuyan, N. Guttman, H. Park, A. Bozek, S. H. Kim, J. Dorfan, M. Gelb, H. Koch, Vladimir Popov, A. Zallo, S. Jia, D. N. Brown, R. Stroili, R. Ayad, K. Cho, C. Hearty, M. Iwasaki, P. K. Resmi, Marcello Rotondo, B. G. Cheon, James E. Fast, A. Kuzmin, M. Ebert, T. K. Pedlar, T. Kumita, K. Yu. Todyshevx, F. Forti, Y. Choi, K. J. Nath, E. A. Kravchenko, L. Santelj, K. H. Kang, T. Leddig, Shih-Chang Lee, D. Matvienko, C. Voß, M. Bomben, J. Haba, Dominik Müller, X. C. Lou, C. Chen, G. Finocchiaro, C. Z. Yuan, Y. Jin, A. J. Schwartz, C. H. Wang, Alberto Lusiani, Semen Eidelman, E. Grauges, L. Vitale, S. Ogawa, A. Rossi, Y. Watanabe, J. P. Lees, A. Filippi, S. E. Vahsen, G. A. Cowan, C. Bünger, C. Sciacca, R. C. Field, Gabriele Simi, G. Eigen, R. Gorodeisky, F. Martinez-Vidal, J. J. Walsh, C. Schwanda, R. Itoh, H. Ahmed, D. Cinabro, Tao Luo, F. Tenchini, Th. Müller, G. Rizzo, Y. Sakai, D. Bernard, J. Chauveau, S. I. Serednyakov, F. Palombo, S. Korpar, E. Gabathuler, T. Ferber, Tagir Aushev, C. Cartaro, Y. Onuki, A. Jawahery, M. Nayak, G. Cibinetto, M. K. Sullivan, M. Margoni, Y. Guan, A. Oyanguren, E. Waheed, R. M. Seddon, Nicola Neri, J. W. Gary, V. Gaur, W. Panduro Vazquez, Y. Iwasaki, C. Touramanis, S. Luitz, K. R. Schubert, P. Taras, S. Hirose, D. J. Payne, E. Fioravanti, Y. Li, Y. J. Kwon, V.N. Zhilich, F. Ferrarotto, E. M. T. Puccio, G. B. Mohanty, P. L. Wang, B. Golob, T. Lueck, Roland Waldi, Biplab Dey, Peter Kodys, Fergus Wilson, M. A. Giorgi, E. Paoloni, A. Zupanc, F. De Mori, A. B. Kaliyar, P. F. Harrison, H. Kichimi, D. G. Hitlin, H. K. Moon, M. R. Convery, A. Chen, F. Bianchi, G. Piredda, O. Schneider, U. Mallik, R. Cheaib, Y. Yusa, Bingran Wang, M. Röhrken, K. Senyo, J. S. Lange, V. Santoro, W. J. Wisniewski, C. Hast, W. W. Jacobs, A. M. Eisner, I. M. Nugent, M. T. Hedges, M. Carpinelli, K. Miyabayashi, I. Badhrees, M. Posocco, B. G. Fulsom, R. F. Schwitters, G. Varner, R. Mussa, A. M. Lutz, K. T. Flood, G. Casarosa, Simon Akar, M. Takizawa, Pavel Krokovny, R. Calabrese, V. E. Blinov, A. R. Buzykaev, A. Ishikawa, G. Vasseur, Roger Barlow, Ju-Young Kim, Miriam Heß, Y. Seino, S. Bettarini, R. de Sangro, M. Nakao, M. Biasini, P. Križan, G. Raven, Alexander Bondar, D. Gamba, R. Sacco, L. Cremaldi, Yu. I. Skovpen, C. P. Shen, K. Honscheid, G. Calderini, Elisa Manoni, R. Kowalewski, N. Arnaud, V.E. Shebalin, M. Heck, L. K. Li, M. V. Purohit, S. Di Carlo, D. M. Asner, K. Hayasaka, Sw. Banerjee, Soumen Paul, M. Uchida, G. Pakhlova, P. R. Burchat, G. Karyan, V. Bhardwaj, C. L. Hsu, J. A. Ernst, S. L. Wu, P. Ongmongkolkul, H. Atmacan, D. B. Macfarlane, Alessandro Pilloni, K. K. Joo, S. Dittrich, D. R. Peimer, Kiyoshi Tanida, Timothy Gershon, D. Aston, L. Li Gioi, A. Garmash, F. Anulli, Z. Doležal, J. M. Roney, Yoshinobu Unno, S. Zakharov, M. Lubej, G. Inguglia, V. Zhukova, M. Merola, A. K. Giri, K. Sumisawa, S. M. Spanier, G. Batignani, M. Masuda, C. L. Davis, M. Fritsch, A. P. Onuchin, L. Sun, Adrian John Bevan, Somnath Choudhury, Leo Piilonen, O. Seon, Frank Simon, D. J. Lange, Matteo Rama, James G. Smith, V. P. Druzhinin, D. M. Wright, M. S. Alam, E. Solovieva, R. Prepost, N. Dash, M. Rozanska, D. Kotchetkov, T. Adye, A. Randle-Conde, T. Julius, M. Verderi, R. Faccini, V. Poireau, T. Sumiyoshi, J. M. Losecco, G. Marchiori, F. C. Porter, Martin Ritter, T. Sanuki, S. Cunliffe, J. Va'Vra, W. S. Lockman, M. Salehi, H. Aihara, George Lafferty, C. P. Jessop, T. Hara, T. Mori, Oliver Grünberg, G. R. Bonneaud, N. K. Nisar, I. Pavelkin, D. Bettoni, Z. P. Zhang, S. Prell, B. G. Pushpawela, A. Gaz, S. H. Robertson, L. Lanceri, Jyoti Prakash Biswal, B. Echenard, M. Davier, J. MacNaughton, A. M. Bakich, W. Dunwoodie, D. Červenkov, Rocky Bala Garg, T. S. Mattison, W. Gradl, E. P. Solodov, I. Garzia, Thomas Latham, C. Patrignani, V. Tisserand, and M. Bračko
Subjects: Quark, Physics, Particle physics, Unitarity, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, General Physics and Astronomy, Dalitz plot, 01 natural sciences, B-factory, KEKB, 0103 physical sciences, CP violation, 010306 general physics
Abstract: We present first evidence that the cosine of the CP-violating weak phase 2β is positive, and hence exclude trigonometric multifold solutions of the Cabibbo-Kobayashi-Maskawa (CKM) Unitarity Triangle using a time-dependent Dalitz plot analysis of B^{0}→D^{(*)}h^{0} with D→K_{S}^{0}π^{+}π^{-} decays, where h^{0}∈{π^{0},η,ω} denotes a light unflavored and neutral hadron. The measurement is performed combining the final data sets of the BABAR and Belle experiments collected at the ϒ(4S) resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain (471±3)×10^{6}BB[over ¯] pairs recorded by the BABAR detector and (772±11)×10^{6}BB[over ¯] pairs recorded by the Belle detector. The results of the measurement are sin2β=0.80±0.14(stat)±0.06(syst)±0.03(model) and cos2β=0.91±0.22(stat)±0.09(syst)±0.07(model). The result for the direct measurement of the angle β of the CKM Unitarity Triangle is β=[22.5±4.4(stat)±1.2(syst)±0.6(model)]°. The measurement assumes no direct CP violation in B^{0}→D^{(*)}h^{0} decays. The quoted model uncertainties are due to the composition of the D^{0}→K_{S}^{0}π^{+}π^{-} decay amplitude model, which is newly established by performing a Dalitz plot amplitude analysis using a high-statistics e^{+}e^{-}→cc[over ¯] data sample. CP violation is observed in B^{0}→D^{(*)}h^{0} decays at the level of 5.1 standard deviations. The significance for cos2β>0 is 3.7 standard deviations. The trigonometric multifold solution π/2-β=(68.1±0.7)° is excluded at the level of 7.3 standard deviations. The measurement resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle.
Published: 2018

31. Measurement of the branching fraction and time-dependent CP asymmetry for B0→J/ψπ0 decays

Author: Pavel Krokovny, S. Cunliffe, Y. Guan, D. Epifanov, J. Libby, K. Trabelsi, M. Merola, Seok Kim, T. K. Pedlar, J. E. Fast, E. Nakano, D. Matvienko, F. Tenchini, Samo Korpar, M. Sumihama, Motoki Iwasaki, H. Hayashii, R. B. Garg, B. Bhuyan, T. Sumiyoshi, Y-J Kwon, B. G. Fulsom, Martin Ritter, R. Mizuk, G. Schnell, K. Chilikin, R. Kroeger, M. E. Sevior, T. Bilka, T. Matsuda, T. Sanuki, T.-A. Shibata, D. M. Asner, G. Pakhlova, H. Miyata, K. Hayasaka, C. Beleño, Y. Sakai, R. Kulasiri, Yang Li, Seema Bahinipati, Bo Wang, Y. Choi, K. J. Nath, V. Savinov, T. Hara, L. Santelj, L. Li Gioi, T. Julius, T. Uglov, M. V. Purohit, H. Ono, K. Inami, M. Nayak, M. Gelb, Z. P. Zhang, B. G. Cheon, C.-L. Hsu, K. Senyo, G. Varner, Y. Seino, M. Z. Wang, K. Kinoshita, Peter Kodys, W. W. Jacobs, A. Kuzmin, M. Uchida, L. K. Li, S. Nishida, S. Ogawa, U. Tamponi, Tagir Aushev, N. Dash, E. Solovieva, E. Prencipe, S. Jia, D. Cinabro, S. Di Carlo, S. C. Lee, G. Russo, H. Park, A. Bozek, K. T. Kim, G. Karyan, Rahul Kumar, A. Garmash, V. Bansal, Z. Natkaniec, Kevin Varvell, C. H. Wang, S. Al Said, D. Kotchetkov, R. Itoh, A. K. Giri, Y. Unno, P. Wang, S. Paul, V. M. Aulchenko, M. Masuda, P. K. Behera, Y. Tao, T. Mori, H. Aihara, X. L. Wang, G. B. Mohanty, R. Ayad, K. Cho, V. Chekelian, Jyoti Prakash Biswal, K. Lalwani, S. Uno, C. Schwanda, S. Uehara, R. Van Tonder, B. K. Pal, V. Gaur, Deepak Kumar Sahoo, L. Cao, Leo Piilonen, D. Joffe, O. Seon, Frank Simon, Vladimir Popov, Somnath Choudhury, S. Pardi, M. Takizawa, John Yelton, Z. Doležal, R. Pestotnik, Victoria Zhukova, A. Chen, Eberhard Widmann, T. Higuchi, D. Červenkov, P. Goldenzweig, S. Sandilya, M. Starič, S. E. Vahsen, V.N. Zhilich, Y. Iwasaki, O. Schneider, M. Bračko, K. Miyabayashi, I. Badhrees, A. J. Schwartz, D. Y. Kim, W. S. Hou, Andrey Sokolov, V. Vorobyev, J. H. Yin, Semen Eidelman, P. C. Lu, A. Ishikawa, B. Golob, M. Nakao, P. Križan, J. Schueler, E. Won, H. Atmacan, and K. Tanida
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, media_common.quotation_subject, Resonance, 01 natural sciences, Asymmetry, Belle experiment, law.invention, KEKB, law, 0103 physical sciences, CP violation, 010306 general physics, Collider, media_common
Abstract: We measure the branching fraction and time-dependent CP-violating asymmetry for B0→J/ψπ0 decays using a data sample of 711 fb-1 collected on the ϒ(4S) resonance by the Belle experiment running at the KEKB e+e- collider. The branching fraction is measured to be B(B0→J/ψπ0)=[1.62±0.11(stat)±0.06(syst)]×10-5, which is the most precise measurement to date. The measured CP asymmetry parameters are S=-0.59±0.19(stat)±0.03(syst) and A=-0.15±0.14(stat)+0.04-0.03(syst). The mixing-induced CP asymmetry (S) differs from the case of no CP violation by 3.0 standard deviations, and the direct CP asymmetry (A) is consistent with zero.
Published: 2018

32. Measurement of the decays Λc→Σππ at Belle

Author: Tagir Aushev, Y. Onuki, Iki Adachi, H. Miyata, M. Watanabe, Bo Wang, U. Tamponi, V. Gaur, S. Jia, Doo Young Kim, Y. Jin, O. Grzymkowska, C. H. Wang, K. Suzuki, S. Paul, V. M. Aulchenko, L. Li Gioi, J. Libby, D. M. Asner, M. Lubej, K. Hayasaka, A. Kuzmin, H. Ye, M. Nayak, G. Varner, Victoria Zhukova, F. Tenchini, A. B. Kaliyar, M. Niiyama, A. Chen, R. Mussa, A. Garmash, Elisa Guido, Shih-Chang Lee, S. Nishida, Takuro Sanuki, G. Schnell, B. G. Cheon, T. Uglov, D. Kotchetkov, V.N. Zhilich, R. Kulasiri, Z. Natkaniec, V.E. Shebalin, S. Al Said, M. T. Hedges, B. Shwartz, Pavel Krokovny, M. Salehi, T. Iijima, A. Ishikawa, J. Haba, Y. Seino, P. Križan, V. Bansal, Peter Kodys, W. W. Jacobs, Tao Luo, T. Nakano, K. K. Joo, S. Korpar, T. Kuhr, K. Senyo, A. Zupanc, T. Julius, G. Russo, H. Park, A. Bozek, S. Uno, C. Schwanda, K. Chilikin, H. Hayashii, Hyunyong Kim, S. Zakharov, T. Kawasaki, M. Sumihama, Motoki Iwasaki, D. Cinabro, I. Jaegle, Y. Watanabe, H. Kichimi, K. Miyabayashi, I. Badhrees, S. Di Carlo, M. Uchida, Andrey Sokolov, M. Merola, H. Atmacan, T.-A. Shibata, Y. Yusa, G. Karyan, L. K. Li, P. K. Behera, Massimo Berger, M. Takizawa, C. Z. Yuan, H. Ono, R. Mizuk, D. Liventsev, C. P. Shen, Noritaka Shimizu, Phillip Urquijo, M. Starič, Y. B. Li, T. Nanut, V. V. Zhulanov, Seok Kim, A. K. Giri, Y. Choi, K. J. Nath, R. Kroeger, M. E. Sevior, I. S. Lee, E. Won, R. Pestotnik, K. Inami, T. Hara, L. Santelj, A. Rostomyan, Semen Eidelman, X. L. Wang, Y. Sakai, R. Itoh, W. S. Hou, T. Sumiyoshi, Martin Ritter, V. Babu, M. Z. Wang, K. Kinoshita, J. B. Kim, M. Masuda, C. Kiesling, P. Wang, T. Czank, N. Dash, E. Solovieva, G. B. Mohanty, Y. Unno, B. K. Pal, V. Vorobyev, T. Ferber, I. Pavelkin, R. Ayad, K. Cho, C. B. Van Hulse, G. Pakhlova, R. B. Garg, M. Bračko, B. Bhuyan, Leo Piilonen, T. E. Browder, J. K. Ahn, A. J. Schwartz, P. Pakhlov, A. Vossen, A. M. Bakich, V. Savinov, N. K. Nisar, H. K. Moon, O. Seon, Frank Simon, J. S. Lange, Vladimir Popov, N. Gabyshev, D. Červenkov, Eberhard Widmann, J. F. Strube, Dipanwita Dutta, D. Matvienko, Z. P. Zhang, Jyoti Prakash Biswal, M. Nakao, P. Goldenzweig, S. Sandilya, H. Aihara, T. K. Pedlar, Y. Iwasaki, Y. J. Kwon, O. Schneider, B. G. Fulsom, Kevin Varvell, T. Mori, Y. Usov, T. Matsuda, G. Bonvicini, A. Vinokurova, J. G. Shiu, K. H. Kang, D. Epifanov, V. Bhardwaj, M. Gelb, G. Inguglia, S. Okuno, K. T. Kim, Y. Guan, Kiyoshi Tanida, John Yelton, Z. Doležal, and J. E. Fast
Subjects: Physics, KEKB, 010308 nuclear & particles physics, Full data, Electron–positron annihilation, 0103 physical sciences, Pi, Analytical chemistry, 010306 general physics, Lambda, 01 natural sciences
Abstract: We report measurements of the branching fractions of the decays Lambda(+)(c) -> Sigma(+)pi(-)pi(+), Lambda(+)(c) -> Sigma(0)pi(+)pi(0) and Lambda(+)(c) -> Sigma(+)pi(0)pi(0) relative to the reference channel Lambda(+)(c) -> pK(-)p(+). The analysis is based on the full data sample collected at and near the gamma(4S) resonance by the Belle detector at the KEKB asymmetric-energy ethorne-collider, corresponding to an integrated luminosity of 711 fb(-1). We measure B(Lambda(+)(c) -> Sigma(+)pi(-)pi(+))/B(Lambda(+)(c) -> pK(-)pi(+)) = 0.719 +/- 0.003 +/- 0.024, B(Lambda(+)(c) -> Sigma(0) pi(+)pi(0))/B(Lambda(+)(c) -> pK(-)pi(+)) = 0.575 +/- 0.005 +/- 0.036 and B(Lambda(+)(c) -> Sigma(+)pi(0)pi(0))/B(Lambda(+)(c) -> pK(-)pi(+)) = 0.247 +/- 0.006 +/- 0.019. The listed uncertainties are statistical and systematic, respectively.
Published: 2018

33. Inclusive decays of B-meson to J/ψ and χ c1 using 386 × 1 0 6 B B ̄ $\boldsymbol {386\times 10^{6} B\bar {B}}$ events

Author: RAJEEV KUMAR and Leo Piilonen
Subjects: Physics, KEKB, 010308 nuclear & particles physics, Branching fraction, 0103 physical sciences, Analytical chemistry, General Physics and Astronomy, CP violation, B meson, Atomic physics, 010306 general physics, 01 natural sciences, B-factory
Abstract: The inclusive decays of B-mesons to charmonium have been studied in a data sample of 386 million $B\bar {B}$ events. The data sample has been collected by the Belle detector at the KEKB asymmetric energy e + e − collider operating at the Υ(4S) resonance. The branching fractions have been measured for the inclusive decays to J/ψ + X and χ c1 + X. The measured branching fraction for J/ψ + X is $\mathcal {B}(B \to J/\psi (\to e^{+}e^{-})+X) = (1.10\pm 0.005\pm 0.057)\%$ and $\mathcal {B}(B\to J/\psi (\to \mu ^{+}\mu ^{-})+X) = (1.08\pm 0.004\pm 0.056)\%$ , while the inclusive χ c1 + X branching fraction is found to be $\mathcal {B}(B\to \chi _{c1}+X) = (0.44\pm 0.01\pm 0.06)\%$ . The feed-down contribution from higher charmonium states is subtracted from the measured branching fractions and the direct branching fractions are obtained to be $\mathcal {B}(B\to J/\psi +X) = (0.77\pm 0.04\pm 0.06)\%$ and $\mathcal {B}(B \to \chi _{c1}+X) = (0.41\pm 0.01\pm 0.06)\%.$
Published: 2016

34. Inclusive study of bottomonium production in association with an $$\eta $$ η meson in $$e^+e^-$$ e + e - annihilations near $$\varUpsilon (5S)$$ Υ ( 5 S )

Author: G. Schnell, Y. Iwasaki, Y. J. Kwon, S. Uehara, O. Schneider, J. Libby, D. M. Asner, K. Hayasaka, H. Ye, B. G. Fulsom, S. Al Said, Yang Li, Y. Choi, K. J. Nath, E. Won, S. Sandilya, B. Bhuyan, R. Pestotnik, M. Gelb, M. Nayak, Y. Sakai, N. Dash, A. Chen, H. Hayashii, T. Sumiyoshi, T. E. Browder, H. Aihara, G. Inguglia, V. Zhukova, T. K. Pedlar, D. Matvienko, Z. Drásal, Martin Ritter, S. Zakharov, D. Kotchetkov, T. Sanuki, Soumen Paul, V. Savinov, M. Uchida, L. K. Li, Andrey Sokolov, C. Schwanda, D. Cinabro, M. Salehi, H. Ono, M. Watanabe, B. Pal, X. L. Wang, S. Okuno, V. Bhardwaj, U. Tamponi, R. Mizuk, Phillip Urquijo, James E. Fast, V. Babu, Massimo Berger, K. K. Joo, M. Z. Wang, K. Kinoshita, T. Czank, E. Solovieva, Semen Eidelman, T. Julius, R. Mussa, T. Luo, I. Jaegle, H. B. Jeon, M. Iwasaki, J. Haba, A. Ishikawa, B. G. Cheon, V. Gaur, Y. Yusa, Leo Piilonen, Y. Seino, P. Križan, Y. Jin, C. H. Wang, Iki Adachi, Doo Young Kim, M. Takizawa, A. Vossen, C. Z. Yuan, P. Wang, K. Senyo, S. Cunliffe, T. Ferber, F. Tenchini, R. Itoh, O. Seon, J. B. Kim, Vikas Bansal, S. Korpar, M. Bračko, Yoshinobu Unno, C. Van Hulse, H. K. Moon, G. Varner, A. M. Bakich, N. Shimizu, R. Ayad, K. Cho, Pavel Krokovny, A. Bozek, E. Widmann, Z. Natkaniec, Peter Kodys, K. Trabelsi, G.V. Russo, C. P. Shen, K. Chilikin, S. Di Carlo, T. Hara, N. Gabyshev, D. Červenkov, T. Kawasaki, W. S. Hou, M. T. Hedges, P. Pakhlov, Tara Nanut, T. Uglov, T. Mori, V. Vorobyev, K. Inami, H. Kichimi, V.E. Shebalin, Bingran Wang, M. Masuda, A. Rostomyan, S. Nishida, B.A. Shwartz, Jyoti Prakash Biswal, H. Park, M. Starič, D. Liventsev, Vladimir Zhulanov, D. Epifanov, V.N. Zhilich, R. Kroeger, M. E. Sevior, I. S. Lee, P. Goldenzweig, A. Garmash, Tagir Aushev, J. F. Strube, Y. Onuki, M. Merola, H. J. Kim, V.M. Aulchenko, I. Badhrees, E. L. Barberio, N. K. Nisar, Z. P. Zhang, K. T. Kim, R. Kulasiri, G. Pakhlova, Shih-Chang Lee, Y. Watanabe, T. Matsuda, S. Uno, L. Li Gioi, A. Vinokurova, J. G. Shiu, S. H. Kim, K. H. Kang, H. Atmacan, A.E. Bondar, Kiyoshi Tanida, Z. Doležal, A. Zupanc, T. A. Shibata, H. Miyata, Prafulla Kumar Behera, Rocky Bala Garg, Gagan Bihari Mohanty, and Elisa Guido
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Quarkonium, 01 natural sciences, Belle experiment, Particle decay, KEKB, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Engineering (miscellaneous)
Abstract: We study bottomonium production in association with an $$\eta $$ meson in $$e^+e^-$$ annihilations near the $$\varUpsilon (5S)$$ , at a centre-of-mass energy of $$\sqrt{s}=10.866$$ GeV. The results are based on the 121.4 fb $$^{-1}$$ data sample collected by the Belle experiment at the asymmetric-energy KEKB collider. Only the $$\eta $$ meson is reconstructed and the missing-mass spectrum of $$\eta $$ candidates is investigated. We observe the $$e^+e^-\rightarrow \eta \varUpsilon _J(1D)$$ process and find evidence for the $$e^+e^-\rightarrow \eta \varUpsilon (2S)$$ process, while no significant signals of $$\varUpsilon (1S)$$ , $$h_b(1P)$$ , nor $$h_b(2P)$$ are found. Cross sections for the studied processes are reported.
Published: 2018

35. Search for ϒ(1S,2S)→Zc+Zc(′)− and e+e−→Zc+Zc(′)− at s=10.52 , 10.58, and 10.867 GeV

Author: Pavel Krokovny, Shih-Chang Lee, Suyong Choi, A. K. Giri, U. Tamponi, M. Starič, M. Sumihama, Motoki Iwasaki, B. Shwartz, S. Uno, K. Trabelsi, E. Nakano, Y. J. Kwon, J. Libby, D. M. Asner, C. Schwanda, D. Cinabro, C. P. Shen, M. Lubej, K. Hayasaka, R. Kroeger, M. E. Sevior, I. S. Lee, A. Garmash, S. Jia, Seok Kim, M. Masuda, Tagir Aushev, O. Schneider, G.V. Russo, A. Zupanc, V. M. Aulchenko, V. Bansal, K. Kinoshita, V. Babu, B. G. Fulsom, Meng Wang, Vladimir Popov, Y. Jin, R. Mussa, H. B. Jeon, J. B. Kim, S. Nishida, A. Ishikawa, M. Merola, S. Paul, T. Ferber, W. S. Hou, Y. Seino, B. G. Cheon, R. Kulasiri, Jyoti Prakash Biswal, Elisa Guido, G. Schnell, T. Iijima, J. E. Fast, Iki Adachi, P. Križan, V.E. Shebalin, M. Uchida, Z. Natkaniec, C. Z. Yuan, Doo Young Kim, K. Chilikin, Tara Nanut, S. Pardi, S. Okuno, Zhicai Zhang, T. Kuhr, V. Vorobyev, C. B. Van Hulse, L. K. Li, P. Goldenzweig, S. Sandilya, K. T. Kim, T.-A. Shibata, C. Beleño, Andrey Sokolov, G. Pakhlova, T. Uglov, J. Haba, D. Liventsev, T. Bilka, V. V. Zhulanov, M. Salehi, Tao Luo, V. Gaur, T. K. Pedlar, T. Kumita, T. Julius, M. Nakao, M. Watanabe, K. Inami, Semen Eidelman, M. T. Hedges, S. Korpar, Peter Kodys, W. W. Jacobs, J. MacNaughton, Chunjie Wang, S. Di Carlo, G. Karyan, Shigeki Hirose, T. Matsuda, L. Li Gioi, G. Inguglia, H. Aihara, T. Sumiyoshi, Young-Il Choi, Martin Ritter, R. Itoh, Phillip Urquijo, Kiyoshi Tanida, P. Wang, T. Sanuki, S. Ogawa, H. Miyata, Prafulla Kumar Behera, Y. B. Li, F. Tenchini, Somnath Choudhury, G. Varner, H. Hayashii, Hyunyong Kim, S. Zakharov, Z. Doležal, H. Ye, A. Vinokurova, J. G. Shiu, S. Cunliffe, P. Pakhlov, V.N. Zhilich, Y. Usov, M. Gelb, Bo Wang, H. Ono, I. Jaegle, K. Miyabayashi, I. Badhrees, K. Senyo, E. Won, T. Kawasaki, R. Mizuk, R. Pestotnik, H. K. Moon, J. S. Lange, M. Niiyama, Yang Li, M. Nayak, K. J. Nath, T. Hara, L. Santelj, Victoria Zhukova, R. Ayad, K. Cho, Y. Sakai, A. Chen, M. Takizawa, N. Dash, E. Solovieva, Leo Piilonen, A. Vossen, Frank Simon, D. Kotchetkov, Rocky Bala Garg, Eberhard Widmann, J. F. Strube, B. Bhuyan, V. Savinov, Samo Stanič, A. Rostomyan, X. L. Wang, V. Chekelian, B. K. Pal, C. Kiesling, M. Bračko, H. Park, A. Bozek, N. Gabyshev, D. Červenkov, and S. Al Said
Subjects: Physics, KEKB, Annihilation, 010308 nuclear & particles physics, Branching fraction, 0103 physical sciences, Analytical chemistry, High Energy Physics::Experiment, 010306 general physics, 01 natural sciences
Abstract: The first search for double charged charmoniumlike state production in gamma (IS) and gamma (2S) decays and in e(+) e(-) annihilation at root s = 10.52, 10.58, and 10.867 GcV is conducted using data collected with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant signals are observed in any of the studied modes, and the 90% credibility level upper limits on their product branching fractions in gamma(1S) and gamma(2S) decays [B(gamma(1S, 2S) -> Z(c)(+)Z(c)((')-)) x B(Z(c)(+) -> pi(+) + c (c) over bar ) (c (c) over bar = J / psi, chi(c1) (1P), psi(2S))] and the product of Born cross section and branching fraction for e(+)e(-) -> Z(c)(+)Z(c)((')-)) (sigma(e(+)e(-) -> Z(c)(+)Z(c)((')-)) x B(Z(c)(+) -> pi(+) + c (c) over bar )) at root s = 10.52, 10.58, and 10.867 GeV are determined. Here, Z(c) refers to the Z(c) (3900) and Z(c) (4200) observed in the pi J/psi final state, the Z(c1)(4050) and Z(c2)(4250) in the pi chi(c1)(1P) final state, and the Z(c)(4050) and Z(c)(4430) in the pi psi(2S) final state.
Published: 2018

36. Measurement of time-dependent CP asymmetries in B0→KS0ηγ decays

Author: U. Tamponi, S. Jia, Soumen Paul, H. Aihara, Tagir Aushev, Y. Jin, C. H. Wang, Elisa Guido, M. Iwasaki, R. Ayad, K. Cho, T. Hara, G. Schnell, T. Iijima, H. Ye, Y. Usov, Byung Gu Cheon, I. Jaegle, T. Matsuda, S. Uno, T. Bilka, V.M. Aulchenko, Jyoti Prakash Biswal, Leo Piilonen, M. Watanabe, T. Kuhr, R. Itoh, A. Vossen, A. B. Kaliyar, S. Pardi, Yang Li, H. K. Moon, J. G. Shiu, J. S. Lange, S. Korpar, Peter Kodys, W. W. Jacobs, Pavel Krokovny, Frank Simon, J. MacNaughton, V.E. Shebalin, Andrey Sokolov, H. J. Kim, S. H. Kim, Y. Choi, K. J. Nath, M. Uchida, L. Santelj, L. K. Li, T. Nanut, R. Kulasiri, A. J. Schwartz, Dipak Kumar Sahoo, B. Pal, K. Trabelsi, Z. P. Zhang, W. S. Hou, S. Okuno, S. Di Carlo, A. Rostomyan, C. P. Shen, M. Sumihama, V. Gaur, H. Ono, R. Mizuk, G. Karyan, C. Z. Yuan, Y. Sakai, V. Chekelian, V. Vorobyev, V. Babu, S. Sandilya, S. Cunliffe, Phillip Urquijo, K. Senyo, K. Chilikin, E. Solovieva, N. Dash, Vikas Bansal, T. Ferber, S. Ogawa, Z. Natkaniec, M. Gelb, T. K. Pedlar, T. Kumita, Y. B. Li, G. Varner, E. Widmann, James E. Fast, G. B. Mohanty, E. Nakano, F. Tenchini, V.N. Zhilich, C. Beleño, D. Kotchetkov, C. Van Hulse, Shih-Chang Lee, Iki Adachi, P. Pakhlov, M. T. Hedges, Doo Young Kim, Y. Yusa, S. Al Said, Hitoshi Yamamoto, G. Inguglia, P. Wang, V. Zhukova, J. Haba, N. Gabyshev, D. Červenkov, Semen Eidelman, M. Takizawa, M. Salehi, K. Inami, Y. Iwasaki, Y. J. Kwon, R. Mussa, H. B. Jeon, K. Miyabayashi, J. B. Kim, E. Won, N. Shimizu, S. Nishida, R. Pestotnik, T. Uglov, O. Schneider, H. Nakano, I. Badhrees, G. Russo, H. Park, A. Ishikawa, Tao Luo, B. G. Fulsom, A. Bozek, C. Schwanda, Y. Seino, M. Nakao, A. K. Giri, K. Sumisawa, P. Križan, D. Cinabro, M. Nayak, C. Kiesling, Somnath Choudhury, B. Bhuyan, M. Masuda, S. Hirose, T. Kawasaki, Bingran Wang, T. Sumiyoshi, V. Savinov, J. Libby, D. M. Asner, M. Lubej, K. Hayasaka, J. F. Strube, M. Bračko, Xuejun Wang, Martin Ritter, B.A. Shwartz, Rocky Bala Garg, T. Sanuki, H. Hayashii, M. Starič, D. Liventsev, M. Z. Wang, K. Kinoshita, Vladimir Zhulanov, R. Kroeger, M. E. Sevior, I. S. Lee, P. Goldenzweig, Vladimir Popov, T. Julius, Samo Stanič, Kiyoshi Tanida, Z. Doležal, K. T. Kim, S. K. Choi, T. A. Shibata, H. Miyata, Prafulla Kumar Behera, A. Garmash, S. Zakharov, A. Zupanc, M. Merola, Y. Guan, M. Niiyama, G. Pakhlova, and L. Li Gioi
Subjects: Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Detector, Resonance, 01 natural sciences, Symmetry (physics), law.invention, KEKB, law, 0103 physical sciences, CP violation, High Energy Physics::Experiment, Invariant mass, Astrophysics::Earth and Planetary Astrophysics, Nuclear Experiment, 010306 general physics, Collider, Astrophysics::Galaxy Astrophysics
Abstract: We report a measurement of time-dependent CP violation parameters in B0→KS0ηγ decays. The study is based on a data sample, containing 772×106BB¯ pairs, that was collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the CP violation parameters of S=-1.32±0.77(stat)±0.36(syst) and A=-0.48±0.41(stat)±0.07(syst) for the invariant mass of the KS0η system up to 2.1 GeV/c2.
Published: 2018

37. Production cross sections of hyperons and charmed baryons from e+e− annihilation near s=10.52 GeV

Author: D. Matvienko, K. Chilikin, Kiyoshi Tanida, T. Luo, Y. Watanabe, D. M. Asner, K. Hayasaka, Z. Doležal, J. Libby, H. J. Kim, D. Dutta, P. Kodyš, Hitoshi Miyata, R. Mussa, E. Nakano, S. Uno, Y. Yusa, V. Chekelian, Minu Kim, Y. Choi, Jyoti Prakash Biswal, W. W. Jacobs, G. Bonvicini, C. H. Wang, B. G. Cheon, T. Uglov, Y. Unno, A. Sokolov, R. Itoh, S. Sandilya, D. Joffe, C. H. Li, R. Gillard, S. Pardi, K. T. Kim, Meng Wang, L. Santelj, Leo Piilonen, V. Bansal, Semen Eidelman, R. Mizuk, H. K. Moon, C. Van Hulse, K. J. Nath, A. Vossen, M. Sumihama, V. Shebalin, J. Haba, H. Sahoo, E. Barberio, R. Seidl, Li-Xin Li, Frank Simon, T. K. Pedlar, B. Bhuyan, P. Pakhlov, V. Zhilich, Zhengkang Zhang, T. Nanut, S. Uehara, Toru Iijima, V. Babu, S. Di Carlo, G. Karyan, H. Hayashii, S. Nishida, H. Farhat, T. Julius, Iki Adachi, Doo Young Kim, K. Miyabayashi, V. Bhardwaj, Pavel Krokovny, P. Wang, M. Masuda, V. Zhulanov, T. Matsuda, G. Schnell, T. Ferber, M. Uchida, S. H. Kim, Z. Natkaniec, B. Pal, S. Al Said, A. Ishikawa, H. Park, K. Senyo, I. Jaegle, Y. Kato, B. Shwartz, I. Badhrees, V. Savinov, Y. Seino, M. Nakao, A. M. Bakich, K. K. Joo, Tagir Aushev, A. Zupanc, J. S. Lange, K. Cho, C. Pulvermacher, M. C. Chang, D. Liventsev, T. A. Shibata, M. Ritter, N. Gabyshev, B. G. Fulsom, R. Kulasiri, H. Aihara, O. Schneider, N. K. Nisar, Y. J. Kim, A. Bobrov, J. E. Fast, I. S. Lee, K. Kinoshita, A. Bozek, V. Aulchenko, Takao Mori, A. Garmash, Y-J Kwon, M. Starič, R. Ayad, M. Niiyama, N. Dash, C. Z. Yuan, K. M. Williams, E. Solovieva, T. Sumiyoshi, M. Berger, K. Inami, C. Schwanda, M. E. Sevior, Y. Yamashita, E. Widmann, F. Tenchini, S. Ogawa, D. Cinabro, Y. Sato, T. Hara, V. Gaur, A. Kuzmin, Y. Jin, P. Križan, H. Ye, J. B. Kim, Y. Iwasaki, A. Chen, G. Varner, D. Kotchetkov, D. Červenkov, G. Pakhlova, L. Li Gioi, M. Merola, Z. Drásal, P. Katrenko, C. P. Shen, J. G. Shiu, T. Nakano, M. Nayak, T. E. Browder, R. Chistov, P. Goldenzweig, E. Won, H. Ono, M. Bračko, M. Takizawa, Yang Li, and Y. Sakai
Subjects: Physics, Particle physics, Annihilation, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Nuclear Theory, High Energy Physics::Phenomenology, Hyperon, 01 natural sciences, Baryon, Nuclear physics, Diquark, Charmed baryons, KEKB, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We measure the inclusive production cross sections of hyperons and charmed baryons from e(+)e(-) annihilation using a 800 fb(-1) data sample taken near the gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The feed-down contributions from heavy particles are subtracted using our data, and the direct production cross sections are presented for the first time. The production cross sections divided by the number of spin states for S = -1 hyperons follow an exponential function with a single slope parameter except for the Sigma(1385)(+) resonance. Suppression for Sigma(1385)(+) and Xi(1530)(0) hyperons is observed. Among the production cross sections of charmed baryons, a factor of 3 difference for Lambda(+)(c) states over Sigma(c) states is observed. This observation suggests a diquark structure for these baryons.
Published: 2018

38. Observation of excited Ωc charmed baryons in e+e− collisions

Author: Y. Watanabe, P. Kodyš, Hitoshi Miyata, R. Mussa, Leo Piilonen, Frank Simon, H. J. Kim, N. Gabyshev, M. Merola, Pavel Krokovny, Y. Unno, B. G. Fulsom, R. Kroeger, I. S. Lee, T. E. Browder, A. Zupanc, M. Masuda, K. E. Varvell, M. Gelb, J. S. Lange, A. Kuzmin, Wei-Shu Hou, K. Chilikin, M. Uchida, V. Zhilich, K. Kinoshita, Y. Yusa, A. Vinokurova, G. Pakhlova, Jyoti Prakash Biswal, D. Červenkov, S. Nishida, A. Bozek, V. Aulchenko, V. Bansal, T. Luo, V. Bhardwaj, S. Sandilya, D. Matvienko, Zhengkang Zhang, P. Wang, X. L. Wang, N. Dash, E. Solovieva, T. K. Pedlar, L. Li Gioi, Samo Korpar, P. Goldenzweig, T. Nanut, V. Popov, Cong Wang, J. Yelton, S. Paul, R. Pestotnik, Takao Mori, K. Suzuki, P. Križan, Kiyoshi Tanida, O. Schneider, C. P. Shen, J. G. Shiu, R. Ayad, H. Kichimi, Prafulla Kumar Behera, Y. Choi, Z. Doležal, B. Bhuyan, Tagir Aushev, E. Won, H. Ono, V. Gaur, T. Sumiyoshi, G. B. Mohanty, Meng Wang, T. Julius, C. H. Li, J. B. Singh, K. H. Kang, R. Itoh, D. Greenwald, N. Shimizu, T. Uglov, M. Nayak, F. Tenchini, J. E. Fast, D. Liventsev, V. Babu, S. Di Carlo, Semen Eidelman, A. Garmash, G. Karyan, H. B. Jeon, K. Inami, B. Pal, Y. Kato, M. Niiyama, G. Varner, I. Pavelkin, A. Ishikawa, H. Park, V. Savinov, Y. Seino, M. Nakao, V. Zhulanov, S. H. Kim, J. F. Strube, S. Watanuki, B. Shwartz, V. Vorobyev, S. K. Choi, S. Al Said, E. Nakano, D. Dutta, T. Kuhr, V. Shebalin, Anjan K. Giri, E. Guido, P. Pakhlov, H. Ye, Y. Iwasaki, K. J. Nath, M. Takizawa, W. W. Jacobs, B. G. Cheon, M. Ritter, T. Ferber, M. Berger, A. M. Bakich, T. A. Shibata, S. Okuno, A. Bobrov, Y. Jin, H. Aihara, H. Hayashii, S. Zakharov, T. Aziz, G. Inguglia, U. Tamponi, J. B. Kim, A. Chen, E. Widmann, Y. Usov, S. Ogawa, C. Schwanda, D. Kotchetkov, D. Cinabro, M. Iwasaki, M. Bračko, L. K. Li, Yang Li, E. Barberio, Y. Sakai, Sayantan Choudhury, D. M. Asner, M. Lubej, K. Hayasaka, P. Chang, S. Uno, T. Kumita, R. Garg, R. Kulasiri, S. C. Lee, M. Sumihama, G. Russo, M. T. Hedges, J. Haba, N. K. Nisar, B. Golob, T. Kawasaki, Y-J Kwon, M. Starič, M. E. Sevior, R. Mizuk, H. K. Moon, Iki Adachi, Doo Young Kim, G. Schnell, T. Czank, and K. Cho
Subjects: Charmed baryons, Nuclear physics, Physics, 010308 nuclear & particles physics, Excited state, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, 01 natural sciences, Omega
Abstract: Using the entire Belle data sample of 980 fb(-1) of e(+)e(-) collisions, we present the results of a study of excited Omega(c) charmed baryons in the decay mode (sic)(c)(+) K-. We show confirmation of four of the five narrow states reported by the LHCb Collaboration: the Omega(c)(3000), Omega(c)(3050), Omega(c)(3066), and Omega(c)(3090).
Published: 2018

39. Measurement of branching fractions of hadronic decays of the <math><msubsup><mi>Ω</mi><mi>c</mi><mn>0</mn></msubsup></math> baryon

Author: K. Suzuki, V. Babu, N. Dash, D. Kotchetkov, T. Ferber, Meng Wang, J. Yelton, Y. Guan, Vikas Bansal, E. Nakano, Elisa Guido, T. Matsuda, D. Matvienko, Y. Yusa, G. Schnell, T. Iijima, A. J. Schwartz, Leo Piilonen, D. Joffe, M. Takizawa, J. Haba, S. Uno, P. Krian, R. Mussa, R. Ayad, K. Cho, A. Vossen, H. B. Jeon, Shih-Chang Lee, H. K. Moon, Jasvinder A. Singh, J. S. Lange, A. Ishikawa, H. Atmacan, Y. Seino, M. Nakao, C. W. Park, Y. Watanabe, J. G. Shiu, T. Kuhr, N. Shimizu, Tariq Aziz, A.E. Bondar, B.A. Shwartz, Pavel Krokovny, V.N. Zhilich, S. Sandilya, S. H. Kim, Yang Li, Kiyoshi Tanida, T. E. Browder, T. Kawasaki, K. J. Nath, Andrey Sokolov, Young-Il Choi, Tagir Aushev, M. Uchida, M. Starič, D. Liventsev, L. K. Li, A. Bobrov, K. Miyabayashi, Y. Sakai, T. A. Shibata, Iki Adachi, V. Bhardwaj, Doo Young Kim, V. Savinov, Vladimir Zhulanov, James E. Fast, X. L. Wang, H. Miyata, Prafulla Kumar Behera, M. Gelb, R. Kroeger, M. E. Sevior, I. S. Lee, V.M. Aulchenko, T. Luo, C. P. Shen, Soumen Paul, Semen Eidelman, H. Ye, T. K. Pedlar, T. Kumita, J. B. Kim, S. Nishida, P. Goldenzweig, E. Solovieva, P. Wang, R. Kulasiri, M. Sumihama, G. Russo, H. Park, A. Bozek, V. Vorobyev, M. Iwasaki, B. G. Cheon, Y. Iwasaki, Y. J. Kwon, J. Libby, D. M. Asner, M. Lubej, K. Hayasaka, V. Chekelian, R. Itoh, J. F. Strube, O. Schneider, T. Nanut, S. Korpar, R. Mizuk, B. G. Fulsom, Chunjie Wang, S. Pardi, S. Okuno, A. Garmash, D. Servenkov, Y. Jin, M. Niiyama, H. Kichimi, H. Hayashii, S. Zakharov, G. Inguglia, V. Zhukova, P. Chang, A. Kuzmin, Somnath Choudhury, S. Ogawa, W. S. Hou, F. Tenchini, E. Waheed, T. Uglov, K. Kinoshita, U. Tamponi, T. Czank, M. Merola, A. Zupanc, Peter Kodys, W. W. Jacobs, E. Won, R. Pestotnik, G. Pakhlova, S. Di Carlo, M. Nayak, G. Karyan, A. Chen, V. Gaur, P. Pakhlov, C. Kiesling, G. Varner, M. Bračko, Yoshinobu Unno, Suyong Choi, Rocky Bala Garg, S. Al Said, A. K. Giri, M. Masuda, Gagan Bihari Mohanty, L. Li Gioi, A. M. Bakich, Yongsun Kim, K. Lalwani, C. Schwanda, D. Cinabro, N. Gabyshev, V.E. Shebalin, Vladimir Popov, K. Chilikin, K. Inami, M. C. Chang, Zhicai Zhang, N. K. Nisar, I. Pavelkin, T. Julius, T. Sumiyoshi, Martin Ritter, T. Sanuki, Jyoti Prakash Biswal, H. J. Kim, H. Aihara, T. Hara, T. Mori, D. Greenwald, Y. Usov, E. Widmann, B. Pal, Massimo Berger, Z. Doleal, and C. Z. Yuan
Subjects: Physics, Annihilation, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Analytical chemistry, 01 natural sciences, Omega, ddc, Baryon, KEKB, 0103 physical sciences, Pi, High Energy Physics::Experiment, 010306 general physics
Abstract: Using a data sample of 980 fb−1 of e+e− annihilation data taken with the Belle detector operating at the KEKB asymmetric-energy e+e− collider, we report the results of a study of the decays of the Ωc0 charmed baryon into hadronic final states. We report the most precise measurements to date of the relative branching fractions of the Ωc0 into Ω−π+π0, Ω−π+π−π+, Ξ−K−π+π+, and Ξ0K−π+, as well as the first measurements of the branching fractions of the Ωc0 into Ξ−K¯0π+, Ξ0K¯0, and ΛK¯0K¯0, all with respect to the Ω−π+ decay. In addition, we investigate the resonant substructure of these modes. Finally, we present a limit on the branching fraction for the decay Ωc0→Σ+K−K−π+.
Published: 2018

40. Measurements of the absolute branching fractions of B+→Xcc¯K+ and B+→D¯(*)0π+ at Belle

Author: V. Zhukova, V. Shebalin, V. Gaur, S. Hirose, C. S. Park, G. Varner, C. P. Shen, J. G. Shiu, T. Ferber, K. Sumisawa, W. W. Jacobs, D. Liventsev, H. B. Jeon, Leo Piilonen, B. G. Cheon, Frank Simon, B. Pal, A. Ishikawa, Pavel Krokovny, A. Zupanc, P. Goldenzweig, H. Park, V. Savinov, Meng Wang, K. H. Kang, A. J. Schwartz, J. B. Kim, S. Al Said, T. Kuhr, A. M. Bakich, K. K. Joo, Y. Seino, M. Nakao, S. Okuno, A. B. Kaliyar, A. Chen, Jyoti Prakash Biswal, V. Chekelian, Y. Unno, A. Kuzmin, P. Kodyš, Hitoshi Miyata, R. Mussa, T. A. Shibata, E. Won, H. Ono, H. Hayashii, Y. J. Kim, D. Kotchetkov, K. Trabelsi, V. Babu, M. Takizawa, S. Di Carlo, C. Schwanda, R. Kroeger, D. Cinabro, G. Karyan, A. Sokolov, V. Zhulanov, R. Pestotnik, M. Ritter, V. Bansal, H. Ye, Z. Drásal, V. Vorobyev, M. Nayak, S. H. Kim, J. F. Strube, A. Rostomyan, K. Chilikin, Y. Iwasaki, C. H. Wang, T. Luo, M. Merola, V. Zhilich, K. Kinoshita, Zhengkang Zhang, G. Inguglia, P. Wang, T. Nanut, C. H. Li, R. Itoh, Takao Mori, M. Watanabe, Wei-Shu Hou, M. Iwasaki, R. Ayad, Semen Eidelman, D. Greenwald, M. Masuda, T. Sumiyoshi, B. Bhuyan, O. Schneider, Y. Kato, Tagir Aushev, T. E. Browder, G. Pakhlova, E. Barberio, D. Y. Kim, S. Watanuki, D. Dutta, E. Guido, Samo Korpar, P. Urquijo, M. Bračko, M. Gelb, J. S. Lange, T. Julius, C. Z. Yuan, K. Inami, J. Libby, K. E. Varvell, Y. Yamashita, L. Li Gioi, Y. Sakai, F. Tenchini, H. Kichimi, Prafulla Kumar Behera, Y. Choi, T. Uglov, R. Mizuk, H. K. Moon, Li-Xin Li, S. Uehara, Toru Iijima, Y. Jin, E. Nakano, R. Cheaib, Iki Adachi, H. Aihara, M. Salehi, G. Schnell, T. Czank, K. Senyo, U. Tamponi, Y. Usov, S. Ogawa, K. Cho, Kiyoshi Tanida, Z. Doležal, E. Widmann, S. K. Choi, C. W. Park, A. Garmash, P. Pakhlov, M. Niiyama, D. Epifanov, C. Van Hulse, M. T. Hedges, J. Haba, S. Nishida, I. Badhrees, V. Bhardwaj, N. Gabyshev, Z. Natkaniec, B. G. Fulsom, I. S. Lee, Y. Yusa, S. Sandilya, T. K. Pedlar, D. M. Asner, M. Lubej, K. Hayasaka, P. Chang, S. Uno, A. Bozek, V. Aulchenko, N. Dash, E. Solovieva, R. Kulasiri, K. Miyabayashi, T. Matsuda, J. Yelton, S. Paul, I. Jaegle, N. K. Nisar, M. Sumihama, Y-J Kwon, M. Starič, M. E. Sevior, T. Kawasaki, Y. Sato, M. Uchida, J. E. Fast, K. J. Nath, G. B. Mohanty, C. Kiesling, D. Červenkov, and P. Križan
Subjects: Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Analytical chemistry, Resonance, Branching (polymer chemistry), 01 natural sciences, KEKB, Nuclear magnetic resonance, 0103 physical sciences, 010306 general physics, X(3872), Bar (unit)
Abstract: We present the measurement of the absolute branching fractions of B+ -> Xc (c) over barK+ and B+ -> (D) over bar ((*)0)pi(+) decays, using a data sample of 772 x 10(6) B (B) over bar pairs collected at the gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Here, X-c (c) over bar denotes eta(c), J/psi, chi(c0), chi(c1), eta(c) (2S), psi(2S), psi(3770), X(3872), and X(3915). We do not observe significant signals for X(3872) or X(3915) and set the 90% confidence level upper limits at B(B+ -> X(3872)K+) X(3915)K+) X(3872)K+) to date and the first limit for B(B+ -> X(3915)K+). The measured branching fractions for eta(c) and eta(c)(2S) are the most precise to date, B(B+ -> eta K-c(+)) = (12.0 +/- 0.8 +/- 0.7) x 10(-4) and B(B+ -> eta(c)(2S)K+) = (4.8 +/- 1.1 +/- 0.3) x 10(-4), where the first and second uncertainties are statistical and systematic, respectively.
Published: 2018

41. Search for CP violation in the D+→π+π0 decay at Belle

Author: H. J. Kim, M. Nayak, C. H. Wang, C. Van Hulse, K. T. Kim, A. Rostomyan, D. Joffe, B. K. Pal, Kiyoshi Tanida, Jyoti Prakash Biswal, K. Prasanth, Z. Doležal, T. Uglov, P. K. Resmi, A. Zupanc, M. Gelb, J. S. Lange, D. Dutta, E. Guido, H. B. Jeon, Pavel Krokovny, V. Zhukova, P. Goldenzweig, A. Ishikawa, V. Savinov, J. H. Kang, S. Sandilya, Y. Yamashita, M. Iwasaki, Prafulla Kumar Behera, Y. Choi, M. Nakao, V. Shebalin, A. B. Kaliyar, R. Pestotnik, Junho Kim, T. Julius, K. Cho, M. Masuda, A. Kuzmin, T. Kawasaki, D. Greenwald, H. Ye, V. Bansal, E. Won, Wei-Shu Hou, L. K. Li, R. Kroeger, T. Ferber, D. Liventsev, S. Jia, H. Park, Zhengkang Zhang, D. Matvienko, V. Popov, G. Pakhlova, D. Y. Kim, B. Shwartz, T. Nanut, M. Berger, O. Schneider, W. Ostrowicz, C. Z. Yuan, E. Nakano, M. Niiyama, G. Russo, Iki Adachi, S. E. Vahsen, L. Santelj, P. Pakhlov, Samo Korpar, D. Epifanov, J. Libby, S. Pardi, T. Horiguchi, I. Badhrees, N. K. Nisar, A. Sokolov, A. Garmash, Y. Guan, K. Trabelsi, Eberhard Widmann, J. F. Strube, N. Gabyshev, Phillip Urquijo, M. Ritter, V. Zhilich, Y. Jin, M. Sumihama, S. Nishida, S. Ogawa, M. Salehi, G. Schnell, T. E. Browder, B. G. Fulsom, Y. Sakai, V. Bhardwaj, L. Li Gioi, F. Tenchini, M. T. Hedges, J. Haba, Chawon Park, Sayantan Choudhury, P. Križan, E. Waheed, V. Babu, S. Di Carlo, Z. Natkaniec, A. Chen, V. V. Zhulanov, K. Senyo, Y. Ono, D. M. Asner, M. Lubej, K. Hayasaka, K. Kinoshita, G. Karyan, K. Inami, J. Rauch, P. Wang, D. Kotchetkov, R. Itoh, Takao Mori, W. W. Jacobs, B. G. Cheon, Y. Yusa, H. Ono, O. Seon, R. Mizuk, Y. Seino, S. Uno, R. Ayad, M. Mrvar, Semen Eidelman, M. Takizawa, T. Sumiyoshi, C. Pulvermacher, S. Okuno, D. Červenkov, H. Hayashii, P. Kodyš, Hitoshi Miyata, S. Zakharov, A. Bobrov, H. Aihara, M. Merola, S. H. Kim, C. Kiesling, P. Katrenko, T. Sanuki, Y. Unno, B. Golob, K. Chilikin, Kevin Varvell, T. Luo, V. Gaur, U. Tamponi, M. Bračko, G. B. Mohanty, Y-J Kwon, S. Bahinipati, C. P. Shen, J. G. Shiu, M. Starič, Y. Usov, M. E. Sevior, G. Varner, Y. Watanabe, S. Al Said, T. Kuhr, R. Kumar, R. Kulasiri, K. H. Kang, A. M. Bakich, K. K. Joo, T. A. Shibata, Y. J. Kim, C. Schwanda, D. Cinabro, S. Stanič, Z. Drásal, T. Aziz, K. J. Nath, Ihn Sik Seong, M. Uchida, H. Atmacan, J. E. Fast, Meng Wang, Bingran Wang, A. J. Schwartz, A. Bozek, N. Dash, E. Solovieva, K. Miyabayashi, T. Matsuda, S. Paul, Leo Piilonen, Frank Simon, and H. Yamamoto
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, 01 natural sciences, Belle experiment, law.invention, KEKB, law, 0103 physical sciences, CP violation, High Energy Physics::Experiment, Charm (quantum number), 010306 general physics, Collider
Abstract: We search for CP violation in the charged charm meson decay D+ -> pi(+)pi(0), based on a data sample corresponding to an integrated luminosity of 921 fb(-1) collected by the Belle experiment at the KEKB e(+)e(-) asymmetric-energy collider. The measured CP-violating asymmetry is [+2.31 +/- 1.24(stat) +/- 0.23(syst)] %, which is consistent with the standard model prediction and has a significantly improved precision compared to previous results.
Published: 2018

42. Measurement of the τ lepton polarization and R(D) in the decay B¯→Dτ−ν¯τ with one-prong hadronic τ decays at Belle

Author: H. Aihara, A. Rostomyan, K. Chilikin, R. Garg, T. Aziz, Takuya Higuchi, U. Tamponi, M. Sumihama, I. Badhrees, N. Gabyshev, B. G. Fulsom, S. Ogawa, I. S. Lee, C. Z. Yuan, Iki Adachi, T. Kawasaki, M. T. Hedges, J. Haba, Doo Young Kim, V. Zhulanov, E. Widmann, D. M. Asner, M. Lubej, K. Hayasaka, M. Uchida, T. E. Browder, P. Chang, A. Bozek, S. Uno, V. Babu, S. Di Carlo, J. Libby, K. E. Varvell, Kiyoshi Tanida, S. H. Kim, S. Hirose, J. F. Strube, A. Zupanc, G. Karyan, Tagir Aushev, Y. Guan, Meng Wang, M. Iwasaki, Y. Yusa, M. Salehi, G. Schnell, T. Czank, V. Gaur, S. Sandilya, Pavel Krokovny, P. Kodyš, R. Mussa, A. J. Schwartz, C. Van Hulse, S. K. Choi, P. Goldenzweig, Z. Doležal, J. G. Shiu, N. Dash, E. Solovieva, H. Yamamoto, Y. Jin, E. Won, H. Ono, S. Nishida, Y. Choi, G. Varner, Anjan K. Giri, H. Ye, K. Hara, V. Popov, K. Adamczyk, C. H. Wang, V. Bhardwaj, H. Atmacan, J. E. Fast, Leo Piilonen, Kouji Nakamura, N. K. Nisar, B. Golob, G. B. Mohanty, Y-J Kwon, M. Starič, M. E. Sevior, M. Berger, Z. Natkaniec, V. Zhukova, Y. Sato, K. H. Kang, A. Vossen, N. Shimizu, X. L. Wang, V. Shebalin, T. Uglov, M. Rozanska, A. Bondar, A. Sokolov, R. Kroeger, Jyoti Prakash Biswal, S. Wehle, F. Tenchini, Soumya D. Mohanty, Frank Simon, V. Zhilich, P. Križan, T. Ferber, K. Senyo, P. Wang, K. Kinoshita, S. Al Said, T. Kuhr, R. Pestotnik, R. Kulasiri, K. Miyabayashi, R. Kumar, A. M. Bakich, T. Matsuda, T. A. Shibata, Takao Mori, Samo Korpar, J. Stypula, D. Dutta, R. Ayad, Y. J. Kim, E. Guido, K. Cho, S. Paul, C. W. Park, T. Sumiyoshi, B. Bhuyan, K. J. Nath, I. Jaegle, Wei-Shu Hou, C. Schwanda, Junho Kim, T. Julius, D. Cinabro, D. Červenkov, A. Garmash, A. Kuzmin, M. Niiyama, M. Gelb, J. S. Lange, K. Trabelsi, V. Bansal, V. Vorobyev, L. Li Gioi, H. K. Moon, Zhengkang Zhang, A. Chen, T. Nanut, D. Kotchetkov, Toru Iijima, R. Itoh, D. Liventsev, Semen Eidelman, P. Urquijo, K. Sumisawa, H. B. Jeon, B. Pal, A. Ishikawa, H. Park, Y. Seino, M. Nakao, M. C. Chang, C. L. Hsu, O. Schneider, H. Miyata, K. Inami, Y. Yamashita, B. G. Cheon, V. Chekelian, S. Okuno, H. Hayashii, S. Zakharov, L. K. Li, Yang Li, Y. Sakai, Sayantan Choudhury, M. Takizawa, G. Inguglia, M. Bračko, M. Ritter, and S. Pardi
Subjects: Physics, Particle physics, Muon, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Polarization (waves), 01 natural sciences, KEKB, Full data, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Lepton
Abstract: With the full data sample of $772\ifmmode\times\else\texttimes\fi{}{10}^{6}\text{ }\text{ }B\overline{B}$ pairs recorded by the Belle detector at the KEKB electron-positron collider, the decay $\overline{B}\ensuremath{\rightarrow}{D}^{*}{\ensuremath{\tau}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\tau}}$ is studied with the hadronic $\ensuremath{\tau}$ decays ${\ensuremath{\tau}}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\nu}}_{\ensuremath{\tau}}$ and ${\ensuremath{\tau}}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{\ensuremath{-}}{\ensuremath{\nu}}_{\ensuremath{\tau}}$. The $\ensuremath{\tau}$ polarization ${P}_{\ensuremath{\tau}}({D}^{*})$ in two-body hadronic $\ensuremath{\tau}$ decays is measured, as well as the ratio of the branching fractions $R({D}^{*})=\mathcal{B}(\overline{B}\ensuremath{\rightarrow}{D}^{*}{\ensuremath{\tau}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\tau}})/\mathcal{B}(\overline{B}\ensuremath{\rightarrow}{D}^{*}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}})$, where ${\ensuremath{\ell}}^{\ensuremath{-}}$ denotes an electron or a muon. Our results, ${P}_{\ensuremath{\tau}}({D}^{*})=\ensuremath{-}0.38\ifmmode\pm\else\textpm\fi{}0.51{(\text{stat})}_{\ensuremath{-}0.16}^{+0.21}(\text{syst})$ and $R({D}^{*})=0.270\ifmmode\pm\else\textpm\fi{}0.035{(\text{stat})}_{\ensuremath{-}0.025}^{+0.028}(\text{syst})$, are consistent with the theoretical predictions of the standard model. The polarization values of ${P}_{\ensuremath{\tau}}({D}^{*})g+0.5$ are excluded at the 90% confidence level.
Published: 2018

43. Angular analysis of the e+e−→D()±D∓ process near the open charm threshold using initial-state radiation

Author: S. Al Said, S. Nishida, T. A. Shibata, Y. Watanabe, Meng Wang, Samo Korpar, C. Schwanda, D. Cinabro, Hitoshi Miyata, I. Badhrees, R. Gillard, G. Inguglia, A. Sokolov, A. Bobrov, K. Trabelsi, C. Pulvermacher, M. Nayak, V. Zhilich, P. Wang, B. G. Fulsom, K. Senyo, S. L. Olsen, V. Gaur, M. Merola, C. H. Wang, R. Kulasiri, M. Uchida, K. Cho, Tagir Aushev, V. Vorobyev, T. Sanuki, N. K. Nisar, K. Miyabayashi, V. Zhulanov, S. H. Kim, M. Bračko, K. T. Kim, G. B. Mohanty, C. S. Park, A. Rostomyan, K. Chilikin, C. Kiesling, S. K. Choi, S. Watanuki, G. Varner, Y-J Kwon, P. Pakhlov, E. Guido, B. Shwartz, Wei-Shu Hou, T. Matsuda, T. Luo, Zhengkang Zhang, M. Starič, T. E. Browder, I. Pavelkin, E. Waheed, S. Jia, M. E. Sevior, D. M. Asner, M. Iwasaki, O. Schneider, G. Pakhlova, C. W. Park, T. Nanut, K. Hayasaka, S. Paul, Y. Sakai, V. Shebalin, Prafulla Kumar Behera, Y. Choi, M. T. Hedges, J. Haba, R. Mizuk, H. Farhat, A. Garmash, J. E. Fast, I. Jaegle, H. K. Moon, G. Bonvicini, M. Takizawa, Y. Iwasaki, M. Niiyama, T. Uglov, R. Itoh, T. Ferber, L. Li Gioi, P. Goldenzweig, S. Uno, K. Inami, Y. Yamashita, V. Zhukova, C. Van Hulse, Li-Xin Li, W. W. Jacobs, B. G. Cheon, Semen Eidelman, O. Grzymkowska, Takao Mori, D. Červenkov, S. Uehara, E. Won, H. Ono, A. Zupanc, J. S. Lange, R. Ayad, T. Sumiyoshi, X. L. Wang, H. Hayashii, S. Zakharov, Iki Adachi, Doo Young Kim, V. Chekelian, Pavel Krokovny, Y. Unno, M. Salehi, G. Schnell, P. Križan, T. Czank, K. J. Nath, F. Tenchini, V. Babu, S. Di Carlo, G. Karyan, H. B. Jeon, B. Pal, A. Ishikawa, Y. Seino, A. Bozek, M. Nakao, D. Liventsev, V. Aulchenko, Y. Yusa, A. Vinokurova, S. Sandilya, M. Masuda, T. K. Pedlar, A. Chen, V. Popov, N. Dash, E. Solovieva, D. Kotchetkov, Jyoti Prakash Biswal, Leo Piilonen, R. Pestotnik, Frank Simon, B. Bhuyan, T. Julius, H. Aihara, Y. Usov, S. Ogawa, Z. Drásal, J. G. Shiu, Kiyoshi Tanida, Y. Jin, K. H. Kang, and Z. Doležal
Subjects: Physics, Particle physics, Angular distribution, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Open charm, Radiation, 010306 general physics, 01 natural sciences
Abstract: We report a new measurement of the exclusive ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{D}^{(*)\ifmmode\pm\else\textpm\fi{}}{D}^{*\ensuremath{\mp}}$ cross sections as a function of the center-of-mass energy from the ${D}^{(*)\ifmmode\pm\else\textpm\fi{}}{D}^{*\ensuremath{\mp}}$ threshold through $\sqrt{s}=6.0\text{ }\text{ }\mathrm{GeV}$, using the initial-state radiation technique. The analysis is based on a data sample collected with the Belle detector with an integrated luminosity of $951\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. The accuracy of the cross section measurement is increased by a factor of 2 over the first Belle study. We perform the first angular analysis of the ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{D}^{*\ifmmode\pm\else\textpm\fi{}}{D}^{*\ensuremath{\mp}}$ process and decompose this exclusive cross section into three components corresponding to the ${D}^{*}$ helicities.
Published: 2018

44. First measurement of T -odd moments in D0→KS0π+π−π0 decays

Author: G. Schnell, S. Ogawa, M. Starič, I. Jaegle, K. Miyabayashi, I. Badhrees, M. Z. Wang, K. Kinoshita, B. Shwartz, T. Kuhr, R. Mizuk, H. Ono, Y. Yusa, A. Garmash, H. Yamamoto, K. Senyo, D. Liventsev, Y. Unno, V. Babu, T. Kawasaki, T.-A. Shibata, A. Rostomyan, V. Chekelian, V. M. Aulchenko, Victoria Zhukova, I. Adachi, T. Aushev, Hua Ye, K. Sumisawa, D. M. Asner, A. Chen, M. Niiyama, L. Pesántez, B. K. Pal, P. Goldenzweig, T. Ferber, M. Salehi, T. Nanut, K. Inami, S. Sandilya, A. Zupanc, M. J. Kim, T. Matsuda, B. Bhuyan, A. M. Bakich, Seema Bahinipati, K. J. Nath, M. Uchida, Z. Drásal, T. Hara, L. Santelj, M. Masuda, B. G. Fulsom, L. K. Li, G. B. Mohanty, T. Kumita, G. Bonvicini, T. E. Browder, Z. P. Zhang, S. Nishida, H. Miyata, R. Ayad, R. Mussa, P. Wang, Massimo Berger, Hiroaki Aihara, A. J. Schwartz, A. Bozek, H. B. Jeon, A. Vinokurova, S. Uehara, D. Kotchetkov, Y. Iwasaki, Y. J. Kwon, P. Krokovny, Z. Natkaniec, A. Bobrov, P. Pakhlov, S. H. Kim, B. G. Cheon, D. Matvienko, C. Z. Yuan, E. Waheed, O. Schneider, K. Chilikin, Y. J. Kim, A. Ishikawa, Peter Kodys, K. H. Kang, K. Cho, W. W. Jacobs, Y. Sakai, E. Barberio, N. K. Nisar, H. K. Moon, K. Trabelsi, K. K. Joo, H. Park, C. P. Shen, A. Kuzmin, J. S. Lange, S. Di Carlo, M. Nayak, G. Karyan, Yukinori Sato, G. Varner, T. Uglov, A. B. Kaliyar, K. Hayasaka, S. Uno, J. G. Shiu, D. Epifanov, Samo Korpar, R. Pestotnik, M. T. Hedges, Ya-Qiu Jin, E. Won, H. Farhat, J. B. Kim, Phillip Urquijo, V. Bhardwaj, P. Križan, W. S. Hou, N. Dash, E. Solovieva, Rahul Kumar, V. Vorobyev, V.E. Shebalin, S. Al Said, Leo Piilonen, D. Joffe, A. Vossen, Frank Simon, C. Schwanda, Jyoti Prakash Biswal, T. Sumiyoshi, V. Gaur, Andrey Sokolov, M. Nakao, Chawon Park, V. V. Zhulanov, Y. Yook, Semen Eidelman, Y. Watanabe, T. Mori, D. Y. Kim, G. Pakhlova, R. Kulasiri, T. Julius, R. Chistov, R. Itoh, R. Sinha, F. Tenchini, C. Pulvermacher, Martin Ritter, T. Sanuki, L. Li Gioi, Y. Yamashita, K. T. Kim, Tao Luo, K. Tanida, D. Cinabro, Dipanwita Dutta, R. Gillard, C. Kiesling, C. H. Li, C. B. Van Hulse, M. Bračko, S. K. Choi, Eberhard Widmann, J. F. Strube, J. Libby, M. Lubej, K. Prasanth, Y. Seino, S. Okuno, N. Gabyshev, M. E. Sevior, I. S. Lee, J. E. Fast, A.E. Bondar, J. Haba, M. Takizawa, D. Červenkov, K. M. Williams, John Yelton, Y. Choi, Z. Doležal, Daniel Greenwald, V. Bansal, M. Watanabe, U. Tamponi, C. H. Wang, S. Paul, and V.N. Zhilich
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, media_common.quotation_subject, 01 natural sciences, Asymmetry, Belle experiment, Charm quark, Luminosity, Nuclear physics, KEKB, 0103 physical sciences, Pi, CP violation, 010306 general physics, media_common
Abstract: We report the first measurement of the T-odd moments in the decay D-0 -> K-S(0) pi + pi(-)pi(0) from a data sample corresponding to an integrated luminosity of 966 fb(-1) collected by the Belle experiment at the KEKB asymmetric-energy e(+)e(-) collider. From these moments we determine the CP-violation-sensitive asymmetry a(CP)(T-odd) = [-0.28 +/- 1.38 (stat.)(-0.76)(+0.23) (syst.)] x 10(-3) , which is consistent with no CP violation. In addition, we perform a(CP)(T-odd) measurements in different regions of the D-0 -> K-S(0) pi + pi(-)pi(0) phase space;these are also consistent with no CP violation.
Published: 2017

45. Lepton-Flavor-Dependent Angular Analysis of B→K*ℓ+ℓ−

Author: G. B. Mohanty, Vikas Bansal, E. Nakano, Y. Yusa, C. Van Hulse, T. Sumiyoshi, D. Joffe, M. Uchida, T. Schlüter, Tariq Aziz, Dipanwita Dutta, Yang Li, K. J. Nath, A. Zupanc, A. Bozek, Soumen Paul, S. E. Vahsen, J. Libby, M. Lubej, C. H. Li, James E. Fast, Luka Santelj, Eberhard Widmann, T. Luo, Y. Yook, C. L. Hsu, Semen Eidelman, B. Pal, R. Mussa, W. Bartel, H. B. Jeon, R. Kulasiri, B. G. Fulsom, A. Ishikawa, L. Pesántez, S. Wehle, B. Bhuyan, Yuki Sato, M. Nakao, L. Koch, Y. Seino, C. W. Park, Hiroaki Aihara, N. Gabyshev, P. Križan, Elisa Guido, Y. Ushiroda, C. Niebuhr, M. T. Hedges, Y. Yamashita, A. Bobrov, R. Chistov, J. Rauch, G. Schnell, C. Z. Yuan, V. Savinov, H. Ye, G. Varner, J. G. Shiu, S. Sandilya, K. Senyo, I. Jaegle, K. Inami, T. A. Shibata, K. Trabelsi, M. J. Kim, D. Liventsev, Prafulla Kumar Behera, C. P. Shen, H. Miyake, T. Kuhr, V. Babu, M. Starič, Z. Drásal, T. Aushev, Ihn Sik Seong, Phillip Urquijo, Peter Kodys, W. W. Jacobs, Liangbin Li, A. Rostomyan, T. Kumita, K. Sumisawa, T. Kawasaki, V. Chekelian, H. Ono, D. Červenkov, T. Ferber, T. Matsuda, J. F. Strube, T. E. Browder, P. Wang, G. Bonvicini, H. Hayashii, G. Karyan, Y. Onuki, D. Cinabro, E. Solovieva, H. Kichimi, S. Al Said, K. T. Kim, G. Inguglia, Meng Wang, Y. Iwasaki, R. Gillard, S. H. Kim, P. Chang, Y. J. Kwon, N. Dash, K. Hayasaka, P. Krokovny, V.M. Aulchenko, C. Pulvermacher, M. Watanabe, K. Kinoshita, U. Tamponi, H. Park, A. Kuzmin, F. Tenchini, T. Tsuboyama, O. Schneider, C. Kiesling, K. H. Kang, K. Cho, M. Masuda, C. H. Wang, R. Sinha, D. Epifanov, Toru Iijima, L. Li Gioi, A.E. Bondar, S. Yashchenko, M. Bračko, C. S. Park, O. Grzymkowska, M. Takizawa, Y. Sakai, T. Julius, Y. Choi, Z. Doležal, D. Kotchetkov, T. Hara, S. Ogawa, R. Mizuk, K. Chilikin, M. Nayak, R. Ayad, R. Itoh, Victoria Zhukova, C. Schwanda, K. M. Williams, A. Chen, Leo Piilonen, J. Haba, A. Vossen, O. Seon, Frank Simon, B.A. Shwartz, D. Y. Kim, Z. P. Zhang, S. Nishida, Vladimir Zhulanov, Y. Jin, M. E. Sevior, Jochen Dingfelder, P. Goldenzweig, Iki Adachi, Martin Ritter, Z. Natkaniec, J. B. Kim, A. M. Bakich, B. G. Cheon, T. Sanuki, D. M. Asner, Samo Korpar, B. Golob, E. Barberio, A. B. Kaliyar, J. S. Lange, M. Ziegler, W. S. Hou, V. Vorobyev, S. Uno, A. Garmash, K. K. Joo, E. Won, Kevin Varvell, T. Nanut, Hitoshi Yamamoto, Y. Watanabe, T. Mori, Y. Usov, N. K. Nisar, G. Pakhlova, V.N. Zhilich, Jyoti Prakash Biswal, K. Miyabayashi, V. Gaur, E. Waheed, H. Farhat, T. Uglov, P. Katrenko, A. J. Schwartz, H. J. Kim, and Yoshinobu Unno
Subjects: Physics, Particle physics, Muon, 010308 nuclear & particles physics, Electron–positron annihilation, General Physics and Astronomy, Sigma, Observable, Elementary particle, 01 natural sciences, Nuclear physics, KEKB, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Flavor, Lepton
Abstract: We present a measurement of angular observables and a test of lepton flavor universality in the B -> K(+)l(+)l(-) decay, where l is either e or mu. The analysis is performed on a data sample corresponding to an integrated luminosity of 711 fb(-1) containing 772 x 10(6) B (B) over bar pairs, collected at the Upsilon(4S) resonance with the Belle detector at the asymmetric-energy e(+)e(-) collider KEKB. The result is consistent with standard model (SM) expectations, where the largest discrepancy from a SM prediction is observed in the muon modes with a local significance of 2.6 sigma.
Published: 2017

46. Search for the 0−− glueball in ϒ(1S) and ϒ(2S) decays

Author: M. Niiyama, H. Miyata, S. Ogawa, Tao Luo, A. Zupanc, K. Tanida, R. Mizuk, M. Uchida, L. K. Li, S. Okuno, G. Pakhlova, R. Kulasiri, J. G. Shiu, K. Suzuki, T. Matsuda, H. Farhat, J. B. Kim, H. Kichimi, L. Li Gioi, Y. Yamashita, G. Schnell, Phillip Urquijo, M. Nayak, T. Julius, D. Y. Kim, R. Ayad, B. Golob, E. Barberio, G. Varner, Hiroaki Aihara, P. Goldenzweig, K. Chilikin, Y. J. Kim, G. Bonvicini, N. K. Nisar, C. Z. Yuan, Eberhard Widmann, B. G. Cheon, T. Kuhr, H. K. Moon, J. F. Strube, S. Sandilya, J. Libby, M. Lubej, D. Matvienko, Leo Piilonen, Y. B. Li, M. Takizawa, J. S. Lange, M. Masuda, D. Joffe, A. Bozek, M. J. Kim, A. Garmash, Dipanwita Dutta, C. H. Li, M. Sumihama, R. Itoh, C. P. Shen, Y. Seino, John Yelton, Y. Choi, Z. Doležal, K. Hayasaka, H. Ye, S. H. Kim, M. T. Hedges, M. E. Sevior, V. Babu, K. T. Kim, D. Cinabro, Samo Korpar, T. Aushev, Jyoti Prakash Biswal, R. Gillard, K. H. Kang, K. Cho, G. Inguglia, S. Uno, Frank Simon, N. Gabyshev, T. Ferber, K. Senyo, V.N. Zhilich, S. K. Choi, D. Liventsev, P. Chang, D. M. Asner, T. Sumiyoshi, C. Pulvermacher, Martin Ritter, F. Tenchini, Andrey Sokolov, Peter Kodys, E. Won, M. Starič, I. Jaegle, K. Miyabayashi, T. Kawasaki, T. Nanut, P. Katrenko, I. Badhrees, R. Pestotnik, I. Adachi, T. E. Browder, P. Wang, T. Sanuki, Meng Wang, V.E. Shebalin, V. Gaur, Chawon Park, K. K. Joo, S. Di Carlo, M. Nakao, V. V. Zhulanov, S. Al Said, Z. Drásal, Y. J. Kwon, J. Haba, B. Shwartz, J. E. Fast, K. J. Nath, O. Schneider, T. Uglov, A. M. Bakich, T. Hara, L. Santelj, Semen Eidelman, Y. Onuki, N. Dash, A. Ishikawa, W. S. Hou, E. Solovieva, P. Križan, H. Ono, V. Vorobyev, Y. Watanabe, T. Mori, Y. Usov, D. Kotchetkov, Y. Sakai, H. Hayashii, Toru Iijima, W. Ostrowicz, U. Tamponi, P. Krokovny, Hyunyong Kim, Z. P. Zhang, S. Nishida, C. H. Wang, S. Jia, C. Schwanda, T.-A. Shibata, Victoria Zhukova, A. Chen, D. Červenkov, K. Inami, Z. Natkaniec, C. Kiesling, M. Bračko, V. Bansal, P. K. Behera, C. B. Van Hulse, H. Park, A. Kuzmin, B. Bhuyan, B. G. Fulsom, V. Savinov, A. Rostomyan, V. Chekelian, B. K. Pal, and Y. Unno
Subjects: Nuclear physics, Physics, Particle physics, 010308 nuclear & particles physics, Glueball, Branching fraction, Electron–positron annihilation, 0103 physical sciences, 010306 general physics, 01 natural sciences
Abstract: We report the first search for the J(PC) = 0(--) glueball in Upsilon(1S) and Upsilon(2S) decays with data samples of (102 +/- 2) x 10(6) and (158 +/- 4) x 10(6) events, respectively, collected with the Belle detector. No significant signals are observed in any of the proposed production modes, and the 90% credibility level upper limits on their branching fractions in Upsilon(1S) and Upsilon(2S) decays are obtained. The inclusive branching fractions of the Upsilon(1S) and Upsilon(2S) decays into final states with chi(c1) are measured to be B(Upsilon(1S) -> chi(c1) + anything) = (1.90 +/- 0.43(stat) +/- 0.14(syst) x 10(-4) with an improved precision over prior measurements and B Upsilon(2S) -> chi(c1) + anything) = (2.24 +/- 0.44(stat) +/- 0.20(syst) x 10(-4) for the first time.
Published: 2017

47. The simulation library of the Belle II software system

Author: Y. Soloviev, M. Starič, T. Kuhr, A. Bobrov, C. Pulvermacher, T. Bilka, R. Godang, P. Kodys, Peter Kvasnicka, T. Uglov, J. Kandra, K. Chilikin, D. Y. Kim, H. Nakayama, G. Casarosa, T. Ferber, Martin Ritter, L. Santelj, Leo Piilonen, A.L. Sibidanov, I. Jaegle, and Benjamin Schwenker
Subjects: History, Physics and Astronomy (all), 010308 nuclear & particles physics, Computer science, 0103 physical sciences, Monte Carlo method, Software system, 010306 general physics, 01 natural sciences, Calculation methods, Computer Science Applications, Education, Computational science
Published: 2017

48. Study of excitedΞcstates decaying intoΞc0andΞc+baryons

Author: M. Starič, J. E. Fast, T. Matsuda, B. Bhuyan, K. Miyabayashi, I. Badhrees, B. G. Fulsom, M. Takizawa, G. Bonvicini, P. Goldenzweig, S. Sandilya, K. M. Williams, V.E. Shebalin, John Yelton, Y. Choi, A. Vinokurova, K. T. Kim, R. Gillard, F. Tenchini, E. Barberio, G. Pakhlova, M. E. Sevior, S. H. Kim, U. Tamponi, D. Cinabro, H. B. Jeon, G. Inguglia, V. Savinov, H. K. Moon, J. S. Lange, T. Kumita, M. Danilov, M. Niiyama, G. Schnell, A. Ishikawa, C. H. Wang, T. Aushev, K. H. Kang, K. Cho, T. E. Browder, Jyoti Prakash Biswal, T. Julius, K. Hayasaka, M. Sumihama, M. Uchida, M. Nayak, H. Farhat, Z. P. Zhang, P. Wang, J. B. Kim, S. Nishida, T. Ferber, G. Varner, V. Gaur, S. Uno, L. K. Li, Eberhard Widmann, J. F. Strube, E. Won, T. Sumiyoshi, Andrey Sokolov, Y. Iwasaki, B. Pal, S. Paul, B. G. Cheon, Y. J. Kwon, D. Matvienko, A. Zupanc, T. K. Pedlar, O. Schneider, Samo Korpar, N. Dash, Chawon Park, S. Okuno, C. Schwanda, A. Moll, E. Solovieva, R. Itoh, V. V. Zhulanov, A. Rostomyan, J. G. Shiu, Phillip Urquijo, Y. B. Li, Hiroaki Aihara, Peter Kodys, N. Gabyshev, Y. Watanabe, V. M. Aulchenko, Y. Usov, C. Z. Yuan, A. Garmash, W. W. Jacobs, T. Schlueter, Tao Luo, C. Pulvermacher, Samo Stanič, K. Tanida, Zdenek Dolezal, Martin Ritter, D. Kotchetkov, T. Sanuki, D. M. Asner, S. Di Carlo, Semen Eidelman, T. Nanut, W. S. Hou, C. P. Shen, Y. Sakai, Hui Li, K. Negishi, I. Adachi, D. Y. Kim, J. Libby, M. Lubej, S. Ogawa, P. Pakhlov, P. Krizan, R. Mizuk, H. Miyata, T. Uglov, K. Senyo, Leo Piilonen, D. Joffe, D. Liventsev, H. Park, A. Kuzmin, Y. Seino, A. M. Bakich, O. Seon, Dipanwita Dutta, C. H. Li, R. Ayad, M. Bračko, M. Masuda, G. B. Mohanty, D. Červenkov, Victoria Zhukova, T.-A. Shibata, A. Chen, Seema Bahinipati, K. J. Nath, T. Hara, L. Santelj, Z. Drásal, P. Krokovny, A. Bozek, K. Chilikin, P. K. Behera, E. Kato, H. Hayashii, R. Pestotnik, K. K. Joo, C. B. Van Hulse, M. Z. Wang, K. Kinoshita, V.N. Zhilich, and Y. Kato
Subjects: Physics, Annihilation, 010308 nuclear & particles physics, Electron–positron annihilation, 01 natural sciences, 7. Clean energy, Nuclear physics, Baryon, KEKB, Pion, Photon emission, Excited state, 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, 010306 general physics, Ground state
Abstract: Using a data sample of 980 fb(-1) of e(+)e(-) annihilation data taken with the Belle detector operating at the KEKB asymmetric-energy e(+)e(-) collider, we report the results of a study of excited Xi(c) states that decay, via the emission of photons and/or charged pions, into Xi(0)(c) or Xi(+)(c) ground state charmed-strange baryons. We present new measurements of the masses of all members of the Xi(0)(c), Xi(c)(2645), Xi(c)(2790), Xi(c)(2815), and Xi(c)(2980) isodoublets, measurements of the intrinsic widths of those that decay strongly, and evidence of previously unknown transitions.
Published: 2016

49. Search forXYZstates inϒ(1S)inclusive decays

Author: J. B. Kim, A. M. Bakich, R. Mussa, A. Moll, H. B. Jeon, S. Okuno, P. Wang, T. Matsuda, A. Ishikawa, T. Uglov, J. Haba, P. Križan, J. Libby, C. H. Li, Y. Seino, D. Cinabro, Marko Petrič, G. Inguglia, V. Zhukova, A. Garmash, Peter Kodys, W. W. Jacobs, K. Kinoshita, G. Varner, G. Bonvicini, B. G. Cheon, D. Matvienko, W. S. Hou, T. Nanut, S. Di Carlo, T. Iijima, K. Hayasaka, V. Vorobyev, Y. J. Kwon, D. M. Asner, D. Y. Kim, H. Farhat, A. Vinokurova, Samo Korpar, Leo Piilonen, K. Negishi, S. L. Olsen, Dipanwita Dutta, S. Uno, T. Kuhr, J. G. Shiu, Meng Wang, K. Senyo, K. K. Joo, E. Won, J. Yamaoka, A. Zupanc, Z. P. Zhang, S. Nishida, O. Seon, M. Masuda, Frank Simon, O. Schneider, D. Liventsev, K. T. Kim, R. Itoh, S. H. Kim, N. Dash, T. Ferber, Ruslan Chistov, Ihn Sik Seong, B. Pal, S. D. Yang, G. Pakhlova, Y. Watanabe, M. Uchida, K. H. Kang, K. Cho, Hiroaki Aihara, T. Sumiyoshi, V. Chobanova, Andrey Sokolov, T. A. Shibata, V. Bhardwaj, S. Ogawa, D. Kotchetkov, C. Z. Yuan, S. K. Choi, Prafulla Kumar Behera, F. Tenchini, Jyoti Prakash Biswal, Y. Sakai, E. Barberio, Vladimir Zhulanov, H. K. Moon, M. Starič, Martin Ritter, M. E. Sevior, P. Goldenzweig, T. Sanuki, Yongsun Kim, C. Schwanda, T. Luo, J. S. Lange, James E. Fast, C. Pulvermacher, S. Sandilya, V. Gaur, Yoshinobu Unno, Y. Yook, T. Schlüter, K. Trabelsi, Semen Eidelman, M. Watanabe, B. G. Fulsom, M. Nakao, C. P. Shen, V.N. Zhilich, S. Yashchenko, H. Hayashii, E. Solovieva, C. H. Wang, T. E. Browder, T. Julius, K. Chilikin, M. Nayak, H. Li, A.E. Bondar, L. Li Gioi, K. M. Williams, A. Chen, M. Takizawa, Kiyoshi Tanida, Mikhail Danilov, Y. Choi, Z. Doležal, X. L. Wang, R. Pestotnik, Z. Drásal, P. Krokovny, J. Dalseno, A. Bozek, Y. Ban, Y. Yusa, I. Badhrees, Yang Li, K. J. Nath, L. Santelj, M. Bračko, G. Schnell, N. Gabyshev, Z. Natkaniec, Liangbin Li, A. Rostomyan, V. Chekelian, D. Červenkov, B. Bhuyan, V. Savinov, P. Pakhlov, and A. Kuzmin
Subjects: Nuclear physics, Physics, Particle physics, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, High Energy Physics::Experiment, Tetraquark, 010306 general physics, 01 natural sciences
Abstract: The branching fractions of the Upsilon(1S) inclusive decays into final states with a J/psi or psi(2S) are measured with improved precision to be B Upsilon(1S) -> J/psi + anything = (5.25 +/- 0.13(stat) +/- 0.25(syst) x 10(-4) and B Upsilon(1S) -> psi(2S) + anything = (1.23 +/- 0.17(stat) +/- 0.11(syst)) x 10(-4). The first search for Upsilon(1S) decays into XYZ states that decay into a J/psi or a psi(2S) plus one or two charged tracks yields no significant signals for XYZ states in any of the examined decay modes, and upper limits on their production rates in Upsilon(1S) inclusive decays are determined.
Published: 2016

50. Study of the decay

Author: Thomas E Browder, Hiroaki Aihara, Andrzej Bożek, Olivier Schneider, Shohei Nishida, Bruce Yabsley, Leo Piilonen, Anton Poluektov, Masako Iwasaki, J B Singh, Kevin Varvell, KAI-FENG CHEN, Chang-Zheng Yuan, Junji Haba, Akimasa Ishikawa, Elisabetta Barberio, Sevda Esen, PHILLIP URQUIJO, YEE HSIUNG, and PAO-TI CHANG
Subjects: Physics, Nuclear and High Energy Physics, KEKB, law, Branching fraction, Electron–positron annihilation, Atomic physics, Collider, Atomic and Molecular Physics, and Optics, law.invention
Abstract: We present a study of τ − → K − π + π − ν τ decay using ∼669 fb−1 data, collected with the Belle detector at the KEKB asymmetric–energy e + e − collider. The data is recorded at a center–of–mass energy 10.58 GeV. The result for the branching ratio is: B = ( 3.25 ± 0.02 ( s t a t . ) − 0.15 + 0.16 ( s y s . ) ) × 10 − 3 . We also present results of the precise measurement of the branching ratio of other 3–prong decay modes, τ − → π − π + π − ν τ , τ − → K − K + π − ν τ , and τ − → K − K + K − ν τ .
Published: 2009

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