Author: "T Ferber" / Topic: physics - Searchworks@Jio Institute Digital Library Search Results

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167 results on '"T Ferber"'

1. Measurement of D0–D‾0 mixing and search for CP violation in D0→K+K−,π+π− decays with the full Belle data set

Author: M. Starič, A. Abdesselam, I. Adachi, H. Aihara, K. Arinstein, D.M. Asner, T. Aushev, R. Ayad, T. Aziz, V. Babu, I. Badhrees, S. Bahinipati, A.M. Bakich, V. Bansal, J. Biswal, A. Bondar, G. Bonvicini, A. Bozek, M. Bračko, T.E. Browder, D. Červenkov, V. Chekelian, A. Chen, B.G. Cheon, K. Chilikin, R. Chistov, K. Cho, V. Chobanova, Y. Choi, D. Cinabro, J. Dalseno, M. Danilov, Z. Doležal, D. Dutta, S. Eidelman, D. Epifanov, H. Farhat, J.E. Fast, T. Ferber, B.G. Fulsom, V. Gaur, N. Gabyshev, S. Ganguly, A. Garmash, R. Gillard, R. Glattauer, Y.M. Goh, P. Goldenzweig, B. Golob, J. Grygier, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, X.H. He, W.-S. Hou, C.-L. Hsu, T. Iijima, K. Inami, G. Inguglia, A. Ishikawa, R. Itoh, I. Jaegle, D. Joffe, T. Julius, K.H. Kang, T. Kawasaki, T. Keck, C. Kiesling, D.Y. Kim, J.B. Kim, J.H. Kim, M.J. Kim, S.H. Kim, Y.J. Kim, K. Kinoshita, B.R. Ko, P. Kodyš, S. Korpar, P. Križan, P. Krokovny, T. Kumita, A. Kuzmin, Y.-J. Kwon, J.S. Lange, I.S. Lee, P. Lewis, Y. Li, L. Li Gioi, J. Libby, D. Liventsev, P. Lukin, M. Masuda, D. Matvienko, K. Miyabayashi, H. Miyata, R. Mizuk, G.B. Mohanty, A. Moll, H.K. Moon, R. Mussa, M. Nakao, T. Nanut, Z. Natkaniec, N.K. Nisar, S. Nishida, S. Ogawa, S. Okuno, P. Pakhlov, G. Pakhlova, B. Pal, C.W. Park, H. Park, T.K. Pedlar, L. Pesántez, R. Pestotnik, M. Petrič, L.E. Piilonen, E. Ribežl, M. Ritter, A. Rostomyan, Y. Sakai, S. Sandilya, T. Sanuki, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, A.J. Schwartz, K. Senyo, V. Shebalin, C.P. Shen, T.-A. Shibata, J.-G. Shiu, B. Shwartz, F. Simon, Y.-S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Steder, M. Sumihama, U. Tamponi, Y. Teramoto, K. Trabelsi, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, C. Van Hulse, P. Vanhoefer, G. Varner, A. Vinokurova, V. Vorobyev, M.N. Wagner, C.H. Wang, M.-Z. Wang, P. Wang, X.L. Wang, M. Watanabe, Y. Watanabe, K.M. Williams, E. Won, S. Yashchenko, Y. Yook, C.Z. Yuan, Z.P. Zhang, V. Zhilich, V. Zhulanov, M. Ziegler, and A. Zupanc
Subjects: Charm mesons, Mixing, CP violation, Physics, QC1-999
Abstract: We report an improved measurement of D0–D‾0 mixing and a search for CP violation in D0 decays to CP-even final states K+K− and π+π−. The measurement is based on the final Belle data sample of 976 fb−1. The results are yCP=(1.11±0.22±0.09)% and AΓ=(−0.03±0.20±0.07)%, where the first uncertainty is statistical and the second is systematic.
Published: 2016
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2. Displaced or invisible? ALPs from B decays at Belle II

Author: T. Ferber, A. Filimonova, R. Schäfer, and S. Westhoff
Subjects: New Light Particles, Nuclear and High Energy Physics, Rare Decays, Physics, FOS: Physical sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), ddc:530, High Energy Physics::Experiment, Dark Matter at Colliders, High Energy Physics, Axions and ALPs
Abstract: At colliders, neutral long-lived particles can be detected through displaced decay products or as missing energy. Which search strategy is better depends on the particle's decay length just as on the detector properties. We investigate the complementarity of displaced and invisible signatures for the Belle II experiment. Focusing on axion-like particles $a$ produced from meson decays, we present a new search strategy for two-body decays $B^+ \to K^+ a, a\to E\!\!\!/$ with missing energy $E\!\!\!/$. With $50\,$ab$^{-1}$ of data, Belle II can probe light invisible resonances with branching ratio $\mathcal{B}(B^+\to K^+ a) \gtrsim 10^{-7}$ and decay length $c\tau_a \gtrsim 1\,$m. For axion-like particles, we expect the sensitivity of $B^+ \to K^+ E\!\!\!/$ to small couplings to improve by up to two orders of magnitude compared to previous searches at collider and fixed-target experiments. For sub-GeV particles, $B^+ \to K^+ E\!\!\!/$ at Belle II and searches at beam-dump experiments are most sensitive; for heavier particles, searches for displaced vertices at Belle II, long-lived particle experiments at the LHC, and future fixed-target experiments can probe the smallest couplings., Comment: 30 pages, 12 figures, 1 table
Published: 2023
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3. Measurement of branching fractions and search for CP violation in D 0 → π + π − η, D 0 → K + K − η, and D 0 → ϕη at Belle

Author: S. Sandilya, S. Jia, G.V. Russo, A. Kuzmin, A. Korobov, S. Al Said, A. Sangal, E.-J. Jang, W. S. Hou, M. Starič, M. Merola, G. Bonvicini, A. Vinokurova, S. E. Vahsen, K. Senyo, E. Graziani, P. Krokovny, Y. Choi, V. Popov, Yongsun Kim, K. Lalwani, V.N. Zhilich, M. Takizawa, K. H. Kang, K. Cho, S. Uno, C. Schwanda, Y. Iwasaki, John Yelton, G. Schnell, Z. Doležal, G. De Nardo, Y. J. Kwon, W. B. Yan, D. Epifanov, Z. Natkaniec, M. Iwasaki, S. Das, G. De Pietro, L. Nayak, V. Babu, M. Z. Wang, K. Kinoshita, K. Miyabayashi, N. Rout, T. Kuhr, E. Won, V. Gaur, T. K. Pedlar, Antonio Budano, B. G. Cheon, G. B. Mohanty, B. Golob, C. H. Li, T. Gu, L. K. Li, M. Nayak, Y. Yusa, Dipak Kumar Sahoo, F. Tenchini, F. Di Capua, Luka Santelj, S. K. Choi, Seongbae Yang, R. Ayad, T. Ferber, T. Uglov, A. K. Giri, Seema Bahinipati, Prafulla Kumar Behera, Y. Sakai, Shih-Chang Lee, P. Pakhlov, A. Natochii, T. Sumiyoshi, K. Inami, K. Lieret, A. Passeri, K.-H. Kim, J. Biswal, M. Bračko, H. E. Cho, N. K. Nisar, M. Masuda, K. Uno, Felix Metzner, M. Uchida, C. H. Kim, T. Sanuki, Tomoyuki Konno, D. Y. Kim, S.-H. Park, A. Bozek, J. Bennett, E. Prencipe, H. Atmacan, K. K. Joo, L. E. Piilonen, G. S. Varner, P. Oskin, J. G. Shiu, T. V. Dong, S.-J. Cho, A. Chen, N. Dash, C. P. Shen, E. Solovieva, L. Li Gioi, Iki Adachi, Seok Kim, B. G. Fulsom, M. Shapkin, A. J. Schwartz, K. Chilikin, K. Nishimura, M. Laurenza, A. Bobrov, R. Mizuk, M. Campajola, V. Savinov, S. Nishida, S. Cunliffe, M. Sumihama, X. L. Wang, M. C. Chang, V. Chekelian, H. Ono, R. Dhamija, R. Van Tonder, Tagir Aushev, E. Waheed, Samo Korpar, V. Zhukova, C. Sharma, Peter Kodys, W. W. Jacobs, P. L. Wang, V.M. Aulchenko, Y. Unno, Y. Guan, P. Branchini, K. Kumara, G. Karyan, T. Mori, H. Aihara, Z. S. Stottler, S. Watanuki, Z. P. Zhang, G. Pakhlova, H. Ye, M. Niiyama, S. Halder, T. Bilka, T. E. Browder, M. Bessner, C. H. Wang, S. Paul, S. Pardi, B.A. Shwartz, Y. Q. Chen, Bruce Yabsley, Y. Jin, R. Kroeger, P. Goldenzweig, R. Pestotnik, K. Tanida, D. Cinabro, P. Chang, M. Kumar, D. Červenkov, Somnath Choudhury, D. Matvienko, J. Libby, D. M. Asner, J. H. Yin, K. Hayasaka, C. Kiesling, E. Kovalenko, Rocky Bala Garg, Y. Seino, C. Hadjivasiliou, M. T. Prim, D. Liventsev, A. Ishikawa, M. Nakao, P. Križan, Andrey Sokolov, T. Podobnik, Semen Eidelman, Belle, Collaboration, Campajola, M., De Nardo, G., Di Capua, F., Merola, M., Pardi, S., Russo, G., and Et, Al.
Subjects: Physics, Nuclear and High Energy Physics, Charm physic, 010308 nuclear & particles physics, Branching fraction, e, −, e +-e − Experiments, QC770-798, +, 01 natural sciences, Combinatorics, KEKB, CP violation, Nuclear and particle physics. Atomic energy. Radioactivity, 0103 physical sciences, 010306 general physics, Experiments, Charm physics
Abstract: We measure the branching fractions and CP asymmetries for the singly Cabibbo-suppressed decays D0 → π+π−η, D0 → K+K−η, and D0 → ϕη, using 980 fb−1 of data from the Belle experiment at the KEKB e+e− collider. We obtain$$ {\displaystyle \begin{array}{c}\mathcal{B}\left({D}^0\to {\pi}^{+}{\pi}^{-}\eta \right)=\left[1.22\pm 0.02\left(\mathrm{stat}\right)\pm 0.02\left(\mathrm{syst}\right)\pm 0.03\left({\mathcal{B}}_{\mathrm{ref}}\right)\right]\times {10}^{-3},\\ {}\mathcal{B}\left({D}^0\to {K}^{+}{K}^{-}\eta \right)=\left[{1.80}_{-0.06}^{+0.07}\left(\mathrm{stat}\right)\pm 0.04\left(\mathrm{syst}\right)\pm 0.05\left({\mathcal{B}}_{\mathrm{ref}}\right)\right]\times {10}^{-4},\\ {}\mathcal{B}\left({D}^0\to \phi \eta \right)=\left[1.84\pm 0.09\left(\mathrm{stat}\right)\pm 0.06\left(\mathrm{syst}\right)\pm 0.05\left({\mathcal{B}}_{\mathrm{ref}}\right)\right]\times {10}^{-4},\end{array}} $$ B D 0 → π + π − η = 1.22 ± 0.02 stat ± 0.02 syst ± 0.03 B ref × 10 − 3 , B D 0 → K + K − η = 1.80 − 0.06 + 0.07 stat ± 0.04 syst ± 0.05 B ref × 10 − 4 , B D 0 → ϕη = 1.84 ± 0.09 stat ± 0.06 syst ± 0.05 B ref × 10 − 4 , where the third uncertainty ($$ \mathcal{B} $$ B ref) is from the uncertainty in the branching fraction of the reference mode D0 → K−π+η. The color-suppressed decay D0 → ϕη is observed for the first time, with very high significance. The results for the CP asymmetries are$$ {\displaystyle \begin{array}{c}{A}_{CP}\left({D}^0\ {\pi}^{+}{\pi}^{-}\eta \right)=\left[0.9\pm 1.2\left(\mathrm{stat}\right)\pm 0.5\left(\mathrm{syst}\right)\right]\%,\\ {}{A}_{CP}\left({D}^0\to {K}^{+}{K}^{-}\eta \right)=\left[-1.4\pm 3.3\left(\mathrm{stat}\right)\pm 1.1\left(\mathrm{syst}\right)\right]\%,\\ {} ACP\ \left({D}^0\to \phi \eta \right)=\left[-1.9\pm 4.4\left(\mathrm{stat}\right)\pm 0.6\left(\mathrm{syst}\right)\right]\%.\end{array}} $$ A CP D 0 π + π − η = 0.9 ± 1.2 stat ± 0.5 syst % , A CP D 0 → K + K − η = − 1.4 ± 3.3 stat ± 1.1 syst % , ACP D 0 → ϕη = − 1.9 ± 4.4 stat ± 0.6 syst % . The results for D0 → π+π−η are a significant improvement over previous results. The branching fraction and ACP results for D0 → K+K−η, and the ACP result for D0 → ϕη, are the first such measurements. No evidence for CP violation is found in any of these decays.
Published: 2021

4. Measurement of the energy dependence of the e + e − → B B ¯ $$ B\overline{B} $$ , B B ¯ ∗ $$ B{\overline{B}}^{\ast } $$ and B ∗ B ¯ ∗ $$ {B}^{\ast }{\overline{B}}^{\ast } $$ exclusive cross sections

Author: J. G. Shiu, Jochen Dingfelder, W. B. Yan, S. Cunliffe, M. C. Chang, F. Tenchini, T. Sumiyoshi, Iki Adachi, T. Sanuki, S. Jia, Y. B. Li, T. Matsuda, L. E. Piilonen, H. Park, A. Bozek, P. Oskin, B. Golob, P. Lewis, V. Gaur, L. Nayak, V. Babu, Tagir Aushev, Y. Sakai, V. Zhukova, K. Lieret, Y. Iwasaki, M. Nayak, G. Schnell, T. Iijima, J. Biswal, M. Uchida, Y. J. Kwon, Prafulla Kumar Behera, P. Krokovny, Y. Onuki, T. Uglov, A. Sangal, G. B. Mohanty, A.E. Bondar, R. Mussa, A. Ishikawa, T. Ferber, N. Rout, S. Al Said, K. Cho, H. E. Cho, M. Nakao, J. Schueler, E. Won, R. Mizuk, P. Križan, M. Takizawa, M. Röhrken, K. Chilikin, M. Merola, N. Dash, F. Di Capua, T. Kuhr, M. Campajola, V.N. Zhilich, E. Solovieva, D. Epifanov, V.M. Aulchenko, Z. Doležal, T. Pang, S. Patra, A. Kuzmin, E.-J. Jang, G.V. Russo, Tomoyuki Konno, K. Senyo, Yongsun Kim, S. Ogawa, K. Miyabayashi, R. Dhamija, S. Sandilya, T. K. Pedlar, Shih-Chang Lee, S. Das, S. Uno, C. Schwanda, C. Z. Yuan, W. S. Hou, C.-L. Hsu, S.-J. Cho, P. Pakhlov, C. H. Kim, Seongbae Yang, R. Ayad, Seema Bahinipati, S. K. Choi, M. Starič, H. Hayashii, M. Bračko, D. Liventsev, C. P. Shen, G. S. Varner, K. Trabelsi, J. Li, Dipak Kumar Sahoo, Seok Kim, C. Sharma, Peter Kodys, W. W. Jacobs, S.-H. Park, J. Bennett, Luka Santelj, Andrey Sokolov, T. Podobnik, D. Y. Kim, E. Prencipe, R. Itoh, H. Kichimi, K. Nishimura, Felix Metzner, A. Rostomyan, K. Huang, E. Waheed, G. De Nardo, M. T. Hedges, B. G. Fulsom, L. Li Gioi, G. Karyan, A. Korobov, Semen Eidelman, A. Natochii, H. Ono, N. K. Nisar, H. Atmacan, K. Uno, X. P. Xu, M. Z. Wang, K. Kinoshita, Y. Choi, V. Popov, S. Watanuki, M. Masuda, S. Nishida, M. Iwasaki, Z. P. Zhang, B. G. Cheon, A. Garmash, Y. Unno, V. Chekelian, A. Chen, K. Belous, R. Van Tonder, M. Mrvar, P. L. Wang, J. H. Yin, G. Pakhlova, C. Kiesling, A. Bobrov, K. Kumara, V. Savinov, H. Aihara, Y. Usov, Z. S. Stottler, Rocky Bala Garg, Sadaharu Uehara, C. Hadjivasiliou, Samo Korpar, H. Ye, Samo Stanič, U. Tamponi, M. Bessner, C. H. Wang, S. Paul, M. Niiyama, T. Bilka, M. Watanabe, T. E. Browder, D. Červenkov, K. Tanida, D. Matvienko, B.A. Shwartz, Y. Jin, R. Kroeger, P. Goldenzweig, S. Pardi, Bruce Yabsley, R. Pestotnik, D. Cinabro, Somnath Choudhury, J. Libby, D. M. Asner, K. Hayasaka, E. Kovalenko, M. T. Prim, Takeo Kawasaki, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Belle
Subjects: Nuclear and High Energy Physics, Particle physics, Upsilon(10570): electroproduction, Overline, final state: ((n)jet), B: hadronic decay, measured [channel cross section], Hadron, e+-e− Experiments, Quarkonium, BELLE, annihilation [electron positron], QC770-798, electron positron: annihilation, Particle and resonance production, 01 natural sciences, energy dependence, e+-e�� Experiments, KEK-B, KEKB, ((n)jet) [final state], Nuclear and particle physics. Atomic energy. Radioactivity, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, B meson, 010306 general physics, Spectroscopy, hadronic decay [B], Physics, B: pair production, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, e +-e − Experiments, electron positron: colliding beams, Belle experiment, pair production [B], Upsilon(10870): electroproduction, electroproduction [Upsilon(10870)], 10.63-11.02 GeV-cms, electroproduction [Upsilon(10570)], colliding beams [electron positron], High Energy Physics::Experiment, channel cross section: measured, Energy (signal processing), experimental results
Abstract: Journal of high energy physics 06(6), 137 (2021). doi:10.1007/JHEP06(2021)137, We report the first measurement of the exclusive cross sections e$^{+}$e$^{��}$ �� $ B\overline{B} $, e$^{+}$e$^{��}$ �� $ B{\overline{B}}^{\ast } $, and e$^{+}$e$^{��}$ �� $ {B}^{\ast }{\overline{B}}^{\ast } $ in the energy range from 10.63 GeV to 11.02 GeV. The B mesons are fully reconstructed in a large number of hadronic final states and the three channels are identified using a beam-constrained-mass variable. The shapes of the exclusive cross sections show oscillatory behavior with several maxima and minima. The results are obtained using data collected by the Belle experiment at the KEKB asymmetric-energy e$^{+}$e$^{��}$ collider.[graphic not available: see fulltext], Published by SISSA, [Trieste]
Published: 2021
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5. Precise Measurement of the D0 and D+ Lifetimes at Belle II

Author: R. Mussa, F. Pham, H. Svidras, T. Lam, A. Ishikawa, L. E. Piilonen, M. Nakao, P. Križan, K. Yoshihara, Concettina Sfienti, P. Oskin, U. Tamponi, M. Iwasaki, T. Iijima, A. Kuzmin, M. Welsch, T. M. G. Kraetzschmar, E.-J. Jang, B. G. Cheon, S. Ogawa, G. Giakoustidis, H. Ono, L. M. Cremaldi, K. Matsuoka, T. Kuhr, G. L. Pinna Angioni, S. E. Vahsen, I. Ueda, S. Pardi, N. Rad, M. Bračko, A. Gabrielli, Antonio Budano, Y. Iwasaki, Y. J. Kwon, J. F. Strube, S. Kohani, L. Lanceri, S. Uehara, Makoto Tabata, Jakub Kandra, N. Rout, P. Leitl, T. V. Dong, W. Gradl, K. Flood, C. Niebuhr, X. Y. Zhou, S. Sandilya, M. Starič, M. Hernandez Villanueva, Hidekazu Kakuno, S. Y. Suzuki, L. Corona, R. Stroili, M. Remnev, S. Baehr, E. Wang, F. Meier, I. Ripp-Baudot, Shih-Chang Lee, S. Pokharel, R. Itoh, S. Jia, Dipak Kumar Sahoo, D. Bodrov, P. Bambade, Luka Santelj, Bruce Yabsley, T. Matsuda, Enrico Bernieri, S. Uno, H. Junkerkalefeld, L. Aggarwal, Sunil Bansal, Y. Unno, C. Murphy, C. Wessel, M. Niiyama, Rok Pestotnik, D. Biswas, T. Tsuboyama, F. Abudinén, M. Piccolo, Takeo Higuchi, Carlos Marinas, J. M. Roney, J. Libby, D. M. Asner, S. Halder, K. Hayasaka, R. Tiwary, C. Miller, C. H. Kim, F. Di Capua, T. Koga, A. B. Kaliyar, A. Pathak, K. Tanida, G. Dujany, H. G. Moser, T. Bilka, Daniel Greenwald, F. Tenchini, S. Prell, Seema Bahinipati, Andrey Sokolov, T. Uglov, B. Paschen, G. De Pietro, B. Shwartz, Y. Uematsu, M. Takizawa, Yu. Onishchuk, A. Vinokurova, S. Dubey, I. Heredia-De La Cruz, K. Hara, Y. Seino, H. Tanigawa, B. Golob, M. Bertemes, C.-L. Hsu, M. Watanabe, H. Ozaki, T. E. Browder, A. Glazov, O. Hartbrich, J. Schueler, M. T. Prim, Takeo Kawasaki, D. Y. Kim, Dmytro Levit, A. Natochii, J. Baudot, C. H. Li, K. Lieret, K. Inami, V. Zhukova, Y. Onuki, A. Fodor, Kouji Nakamura, S. Bilokin, R. Žlebčík, A. Baur, P. Krokovny, Sw. Banerjee, John Yelton, S. Stefkova, Q. D. Zhou, D. Cinabro, R. Giordano, Shuji Tanaka, E. C. Hill, Hamad Ahmed, Q. Y. Liu, M. Dorigo, E. Kovalenko, K. Unger, P. Pakhlov, Rakesh Kumar, T. Podobnik, A. J. Schwartz, Z. Doležal, G. Inguglia, G. Nazaryan, P. Chang, M. Kumar, I. Domínguez Jiménez, V. Bhardwaj, Z. Liptak, E. Bertholet, I. Adachi, F. Forti, M. Mrvar, J. Serrano, H. Ye, M. Barrett, E. Won, K. H. Kang, K. Cho, N. Molina-Gonzalez, A. Passeri, L. Zani, G. Polat, R. Kowalewski, K. Trabelsi, J. Guilliams, G. Finocchiaro, J. Bennett, A. Sangal, G. Casarosa, C. Praz, T. Gu, M. Z. Wang, K. Kinoshita, Peter Kodys, W. W. Jacobs, M. Bessner, G. S. Varner, A. Gellrich, S. Raiz, Abner Soffer, Elisa Manoni, K. Chirapatpimol, S. Reiter, N. Gabyshev, D. Červenkov, Nils Braun, T. Czank, S. Cunliffe, P. L. M. Podesta-Lerma, B. Spruck, I. M. Peruzzi, R. de Sangro, D. Epifanov, M. Campajola, H. Purwar, A. Selce, E. Solovieva, T. Lueck, A. Bolz, Somnath Choudhury, T. Hara, H. Aihara, K. Lautenbach, A. Panta, M. Merola, J. G. Shiu, Y.-T. Chen, Samo Korpar, Claudia Cecchi, G. de Marino, A. Rostomyan, A. Paladino, M. C. Chang, S. Bussino, V.N. Zhilich, L. B. Rizzuto, Agnese Martini, F. Bianchi, Y. Ushiroda, N. Toutounji, Jürgen Becker, S. Yamada, R. Manfredi, Hitoshi Hirata, Y. Kato, D. Ferlewicz, H. Nakazawa, P. Branchini, S. Bettarini, Yu. V. Usov, W. Sutcliffe, J. H. Yin, B. G. Fulsom, Florian Urs Bernlochner, S. Nishida, G. Karyan, A. Di Canto, Jochen Dingfelder, K. Senyo, H. M. Wakeling, J. Wiechczynski, T. K. Pedlar, K. Uno, Andreas Warburton, C. Kiesling, W. B. Yan, D. A. Sanders, Phillip Urquijo, R. Godang, Ya-Qiu Jin, G. De Nardo, D. Tonelli, R. Mizuk, M. Sumihama, C. H. Chen, Z. Natkaniec, A. Vossen, S. K. Choi, L. K. Li, E. R. Oxford, K. Miyabayashi, S. Duell, R. Peschke, E. Paoloni, K. Nishimura, Frank Simon, Seongbae Yang, N. Taniguchi, C. Hearty, Y. Guan, Prafulla Kumar Behera, M. Destefanis, M. Hoek, Matthias Bauer, R. Cheaib, K. Kumara, S. Spataro, X. P. Xu, E. Prencipe, M. Rozanska, H. Hayashii, Z. S. Stottler, A. K. Giri, R. J. Sobie, D. Matvienko, L. Vitale, N. K. Nisar, H. K. Moon, J. Kumar, S.-H. Park, J. S. Lange, C. Hadjivasiliou, R. Karl, T. D. Kimmel, Stefano Longo, T. Pang, S. Patra, A. Sibidanov, K. Adamczyk, F. Dattola, L. Cao, A. Bobrov, D. Liventsev, F. R. Le Diberder, Yongsun Kim, B. Gobbo, K. Lalwani, P. Goldenzweig, N. Anh Ky, E. Graziani, E. De La Cruz-Burelo, H. E. Cho, C. Schwanda, F. Krinner, E. Torassa, Pere Rados, M. V. Purohit, R. A. Briere, I. Nakamura, K. Chilikin, D. E. Jaffe, T. Humair, P. Ecker, M. Hohmann, E. Waheed, V. Aushev, Tomoyuki Konno, D. Dossett, C. Lyu, S.-J. Cho, A. De Yta-Hernandez, J. A. McKenna, Y. Kim, V. Babu, T. Ferber, S. Kurz, V. Popov, S. Dey, A. Hershenhorn, G. Rizzo, S. Lacaprara, N. Akopov, Soumen Paul, Felix Metzner, B. Scavino, H. Atmacan, G. B. Mohanty, Alberto Aloisio, Y. Yusa, Yuki Sato, M. Laurenza, V. Savinov, S. Bacher, K. Dort, H. Park, A. Bozek, K. Gudkova, Alessandro Gaz, S. H. Robertson, X. L. Wang, V. Chekelian, S. Hazra, R. Van Tonder, and H. Bae
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, law, 0103 physical sciences, General Physics and Astronomy, Resonance, 010306 general physics, Collider, 01 natural sciences, law.invention, Luminosity
Abstract: We report a measurement of the D^{0} and D^{+} lifetimes using D^{0}→K^{-}π^{+} and D^{+}→K^{-}π^{+}π^{+} decays reconstructed in e^{+}e^{-}→cc[over ¯] data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy e^{+}e^{-} collider. The data, collected at center-of-mass energies at or near the ϒ(4S) resonance, correspond to an integrated luminosity of 72 fb^{-1}. The results, τ(D^{0})=410.5±1.1(stat)±0.8(syst) fs and τ(D^{+})=1030.4±4.7(stat)±3.1(syst) fs, are the most precise to date and are consistent with previous determinations.
Published: 2021

6. Search for B+→K+νν¯ Decays Using an Inclusive Tagging Method at Belle II

Author: T. Pang, S. Patra, A. Pathak, K. Adamczyk, G.V. Russo, J. Libby, D. M. Asner, T. Matsuda, Enrico Bernieri, K. Hayasaka, T. V. Dong, Tomoyuki Konno, E. Kovalenko, L. Zani, S. Fiore, F. R. Le Diberder, C. Lyu, A. Vinokurova, S. Dubey, I. Heredia-De La Cruz, P. Grace, J. Baudot, C. H. Li, I. M. Peruzzi, S.-J. Cho, Y. Seino, A. De Yta-Hernandez, O. Hartbrich, Y. Ushiroda, C. Niebuhr, X. Y. Zhou, B. Wach, H. Windel, E. Graziani, E. De La Cruz-Burelo, M. T. Prim, D. Liventsev, P. Krokovny, Rakesh Kumar, C. La Licata, B.A. Shwartz, Takeo Kawasaki, F. Bianchi, H. M. Wakeling, L. E. Piilonen, I. Domínguez Jiménez, Hitoshi Hirata, K. H. Kang, K. Cho, P. Oskin, Agnese Martini, S. Sandilya, A. Kuzmin, M. Welsch, R. Mizuk, E. Ganiev, P. Taras, D. Biswas, A. B. Kaliyar, T. Iijima, C. W. Joo, A. Sangal, T. M. G. Kraetzschmar, S. Stefkova, M. Starič, M. Z. Wang, Andrey Sokolov, Nils Braun, K. Matsuoka, T. Kuhr, Y.-T. Lai, S. Ogawa, D. Cinabro, R. Giordano, A. Baur, H. Ye, J. Schueler, M. E. Sevior, Claudia Cecchi, A. Panta, M. Merola, W. Gradl, P. L. M. Podesta-Lerma, Antonio Budano, K. Chilikin, N. Akopov, G. Inguglia, G. Nazaryan, T. Kunigo, C. Ketter, P. Goldenzweig, A. Gaz, A. Korobov, P. Chang, M. Kumar, M. De Nuccio, K. Nishimura, Frank Simon, R. M. Seddon, D. E. Jaffe, Abner Soffer, N. Anh Ky, H. Ozaki, V. Babu, K. Senyo, S. H. Robertson, S. Nishida, C. H. Chen, S. E. Vahsen, A. J. Schwartz, Kazuhiko Hara, A. Frey, D. Epifanov, Marco Milesi, M. Hernandez Villanueva, G. Finocchiaro, Dipak Kumar Sahoo, P. Bambade, K. Tanida, Y. M. Yook, J. Serrano, T. Ferber, S. Cunliffe, X. L. Wang, Yizeng Li, A. Di Canto, S. Bussino, Sunil Bansal, J. Bennett, Andreas Warburton, Y. Iwasaki, F. Abudinén, Y. J. Kwon, Somnath Choudhury, Tagir Aushev, S. Kurz, Semen Eidelman, S. Pardi, S. Spataro, T. Humair, K. Nakamura, V. Zhukova, Y. Onuki, Makoto Tabata, V. Chekelian, D. Rodríguez Pérez, G. De Nardo, S. Y. Suzuki, S. Hazra, T. K. Pedlar, N. Taniguchi, M. Takizawa, J. G. Shiu, R. Mussa, Jakub Kandra, M. Campajola, N. Rout, X. P. Xu, B. Paschen, Paul Jackson, Y.-T. Chen, Soumen Paul, M. Uchida, Felix Metzner, A. Gellrich, S. Raiz, H. Svidras, A. Garmash, C. Hadjivasiliou, Daniel Greenwald, John Yelton, L. K. Li, R. Van Tonder, M. Hohmann, A. Lozar, Z. Doležal, A. Natochii, A. Ishikawa, K. Inami, N. Toutounji, N. Rad, R. Pestotnik, E. Paoloni, M. Nakao, Stefano Longo, F. Tenchini, I. Ripp-Baudot, F. Meier, P. Križan, M. Remnev, H. Miyake, C.-L. Hsu, L. Cao, B. Scavino, D. A. Sanders, D. Matvienko, J. Wiechczynski, Seongbae Yang, H. Tanigawa, T. Podobnik, B. Spruck, K. Dort, B. Golob, Melissa K. Takahashi, S. Prell, S. Bettarini, Bruce Yabsley, Shih-Chang Lee, S. Duell, C. Miller, C. Hearty, E. Prencipe, Q. Y. Liu, P. Ahlburg, Martin Ritter, Dmytro Levit, M. Maggiora, Phillip Urquijo, N. K. Nisar, K. Lieret, K. Trabelsi, C. H. Kim, Z. Liptak, E. C. Hill, H. Park, S. X. Li, A. Bozek, W. A. T. Wan Abdullah, H. G. Moser, H. Atmacan, D. J. Summers, J. S. Lange, K. Uno, T. Koga, A. Selce, A. Passeri, M. Piccolo, Peter Kodys, R. Karl, T. D. Kimmel, E. Waheed, V.N. Zhilich, V. Aushev, Carlos Marinas, W. W. Jacobs, M. Bertemes, D. Ferlewicz, H. Hayashii, W. Sutcliffe, Elisa Manoni, R. J. Sobie, John Webb, L. Vitale, K. Chirapatpimol, M. Eliachevitch, J. Kumar, S.-H. Park, Yuki Sato, V. Popov, C. Z. Yuan, L. Santelj, S. Dey, K. Miyabayashi, Y. Guan, A. Paladino, R. Manfredi, E. Solovieva, T. Lueck, A. Sibidanov, A. Glazov, M. Laurenza, L. B. Rizzuto, G. de Marino, G. S. Varner, A. Hershenhorn, J. H. Yin, R. Cheaib, P. Branchini, G. Karyan, K. Kumara, Florian Urs Bernlochner, K. Gudkova, S. Lacaprara, V. Savinov, C. Kiesling, R. de Sangro, Z. S. Stottler, G. B. Mohanty, Alberto Aloisio, F. Krinner, A. K. Giri, Y. Yusa, S. Marcello, S. Baehr, G. Rizzo, M. Bračko, M. Destefanis, R. Itoh, K. Yoshihara, Concettina Sfienti, M. Masuda, G. Dujany, M. Iwasaki, F. Dattola, Sw. Banerjee, Satoshi Tanaka, E. Torassa, B. G. Cheon, L. M. Cremaldi, C. Murphy, C. Wessel, N. Gabyshev, D. Červenkov, A. Rostomyan, S. Korpar, F. Forti, M. Mrvar, B. G. Fulsom, R. Godang, S. Watanuki, Prafulla Kumar Behera, K. Sumisawa, S. Kohani, L. Corona, J. Irakkathil Jabbar, M. Garcia-Hernandez, G. Pakhlova, A. Fodor, H. Kichimi, Kevin Varvell, E. Bertholet, Takeo Higuchi, H. Aihara, F. Müller, Y. Usov, K. Lautenbach, Pere Rados, G. De Pietro, J. M. Roney, V. Gaur, M. Sumihama, C. Praz, M. Nayak, Ya-Qiu Jin, D. Tonelli, M. Hoek, Yongsun Kim, B. Gobbo, S. Uno, C. Schwanda, H. Ono, P. Leitl, R. Stroili, Y. Unno, D. Y. Kim, Q. D. Zhou, Iki Adachi, G. Polat, T. Fillinger, S. Pokharel, F. Di Capua, Y. Onishchuk, P. Pakhlov, P. Lewis, G. Casarosa, T. Czank, Jürgen Becker, S. Yamada, Jochen Dingfelder, W. B. Yan, Z. Natkaniec, U. Tamponi, M. Bessner, Surajit Maity, L. Lanceri, H. Junkerkalefeld, S. Halder, T. Bilka, and T. E. Browder
Subjects: Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, General Physics and Astronomy, Resonance, 01 natural sciences, law.invention, Pair production, law, 0103 physical sciences, High Energy Physics::Experiment, B meson, 010306 general physics, Collider, Energy (signal processing)
Abstract: A search for the flavor-changing neutral-current decay B^{+}→K^{+}νν[over ¯] is performed at the Belle II experiment at the SuperKEKB asymmetric energy electron-positron collider. The data sample corresponds to an integrated luminosity of 63 fb^{-1} collected at the ϒ(4S) resonance and a sample of 9 fb^{-1} collected at an energy 60 MeV below the resonance. Because the measurable decay signature involves only a single charged kaon, a novel measurement approach is used that exploits not only the properties of the B^{+}→K^{+}νν[over ¯] decay, but also the inclusive properties of the other B meson in the ϒ(4S)→BB[over ¯] event, to suppress the background from other B meson decays and light-quark pair production. This inclusive tagging approach offers a higher signal efficiency compared to previous searches. No significant signal is observed. An upper limit on the branching fraction of B^{+}→K^{+}νν[over ¯] of 4.1×10^{-5} is set at the 90% confidence level.
Published: 2021

7. Measurement of the branching fraction of Λc+→pω decay at Belle

Author: T. Matsuda, A. Vinokurova, P. Pakhlov, D. Y. Kim, P. Krokovny, K. H. Kang, K. Cho, H. Park, A. Bozek, C.-L. Hsu, K. T. Kim, D. Epifanov, P. Goldenzweig, C. Sharma, J. Libby, Peter Kodys, W. W. Jacobs, M. Uchida, S. X. Li, K. K. Joo, L. K. Li, R. Mizuk, S. Sandilya, R. Dhamija, D. Liventsev, S. K. Choi, K. Tanida, Y. Yusa, E. Kovalenko, P. K. Behera, Y. Seino, S.-J. Cho, V.N. Zhilich, Y. Kato, V. Bhardwaj, T. K. Pedlar, G. De Pietro, P. Branchini, G. S. Varner, K.-H. Kim, Y.-T. Lai, Z. P. Zhang, Andrey Sokolov, M. T. Prim, M. Niiyama, J. H. Yin, M. Starič, C. Hadjivasiliou, M. Merola, C. P. Shen, K. Miyabayashi, T. Gu, M. Nayak, A. K. Giri, R. Itoh, H. Kichimi, F. Tenchini, Victoria Zhukova, A. Chen, S. Nishida, T. V. Dong, Y. Choi, M. Masuda, L. Nayak, T. Aushev, L. Santelj, A. Rostomyan, P. Wang, T. Podobnik, M. Takizawa, T. Sumiyoshi, H. Hayashii, Ya-Qiu Jin, J. G. Shiu, S. Al Said, S. E. Vahsen, T. Ferber, O. Hartbrich, T. Uglov, K. Gudkova, C. H. Kim, B. Golob, G. Schnell, Phillip Urquijo, T. Sanuki, T. Iijima, John Yelton, Z. Doležal, S. Das, M. Z. Wang, K. Kinoshita, N. K. Nisar, J. Li, A. Korobov, K. Kumara, N. Gabyshev, D. Červenkov, J. V. Bennett, H. Aihara, J. S. Lange, K. Uno, Y. Usov, S. Cunliffe, Jyoti Prakash Biswal, T. Pang, Y. B. Li, Yongsun Kim, T. Konno, Y. Guan, Y. Iwasaki, M. C. Chang, S. Uno, Y. J. Kwon, C. Schwanda, Seongbae Yang, G.V. Russo, K. Senyo, Z. S. Stottler, M. Shapkin, Antonio Budano, V. Gaur, Shih-Chang Lee, W. S. Hou, L. E. Piilonen, M. Nakao, B. G. Cheon, M. Röhrken, K. Chilikin, J. F. Strube, G. Pakhlova, P. Oskin, R. Mussa, S. Ogawa, N. Rout, R. Van Tonder, C. MacQueen, A. Ishikawa, Frank Simon, D. Bodrov, E. Wang, Vladimir Popov, Rahul Kumar, E. Waheed, R. B. Garg, B. Bhuyan, K. Hayasaka, A. Bobrov, K. Belous, S. Korpar, R. Kroeger, M. E. Sevior, Sudhanwa Patra, B. G. Fulsom, E. Graziani, T. E. Browder, P. Križan, Seokhee Park, H. E. Cho, R. Pestotnik, M. Campajola, A. B. Kaliyar, K. Lieret, M. Sumihama, M. Laurenza, Motoki Iwasaki, E. Won, Doyen Sahoo, W. Sutcliffe, V. Savinov, J. Borah, E. Solovieva, G. De Nardo, A. Natochii, K. Inami, M. Bračko, E. Prencipe, Bruce Yabsley, D. Cinabro, P. Chang, Somnath Choudhury, I. Adachi, F. Di Capua, W. B. Yan, H. Ono, Y. Unno, L. Li Gioi, H. Ye, S. Halder, Martin Florian Bessner, T. Bilka, U. Tamponi, S. Jia, C. H. Wang, S. Paul, and D. M. Asner
Subjects: Nuclear physics, Physics, 010308 nuclear & particles physics, Branching fraction, 0103 physical sciences, 010306 general physics, 01 natural sciences
Published: 2021

8. Measurements of the Branching Fractions of the Semileptonic Decays Ξc0→Ξ−ℓ+νℓ and the Asymmetry Parameter of Ξc0→Ξ−π+

Author: S. Jia, U. Tamponi, Dipak Kumar Sahoo, S. Pardi, A. Garmash, M. Bessner, G. Bonvicini, A. Natochii, N. K. Nisar, A. Vinokurova, M. Iwasaki, O. Hartbrich, B. Bhuyan, J. S. Lange, K. Uno, Andrey Sokolov, P. Krokovny, O. Grzymkowska, C. H. Wang, K.-H. Kim, L. E. Piilonen, Rakesh Kumar, J. Bennett, Jyoti Prakash Biswal, B. G. Cheon, D. Liventsev, K. H. Kang, K. Cho, S. Paul, S. Al Said, D. Cinabro, M. Z. Wang, K. Kinoshita, Yizeng Li, Semen Eidelman, Y. Jin, R. Kroeger, I. S. Lee, V. Savinov, M. Uchida, R. Mussa, T. Pang, A. Ishikawa, S. Patra, M. Kumar, P. Križan, P. Goldenzweig, H. Ye, R. Mizuk, S. Nishida, H. Ono, V. Bhardwaj, K. Adamczyk, S. Korpar, D. Epifanov, G.V. Russo, S. Das, Y. Iwasaki, A. Kuzmin, L. Nayak, V. Babu, G. Schnell, Y. J. Kwon, X. P. Xu, X. L. Wang, Prafulla Kumar Behera, S. Ogawa, G. S. Varner, J. T. McNeil, L. Li Gioi, A. Korobov, C. W. Joo, E. Prencipe, Somnath Choudhury, R. Van Tonder, N. Rout, M. Sumihama, P. L. Wang, T. Ferber, T. K. Pedlar, T. Kuhr, S. Cunliffe, H. Hayashii, R. Ayad, K. Kumara, M. Niiyama, R. Itoh, R. Dhamija, A. Rostomyan, J. G. Shiu, J. Libby, D. M. Asner, L. K. Li, M. C. Chang, K. Hayasaka, A. K. Giri, T. Mori, H. Aihara, B. G. Fulsom, K. Tanida, D. Y. Kim, Y. Usov, Seongbae Yang, T. Bilka, Tagir Aushev, Z. S. Stottler, E. Kovalenko, V. Zhukova, Y. Onuki, K. Lalwani, C. H. Li, S. Uno, A. Vossen, M. Masuda, Iki Adachi, M. Watanabe, T. E. Browder, H. Park, A. Bozek, Tomoyuki Konno, K. Nishimura, Y. Seino, C. Schwanda, M. Hernandez Villanueva, M. Campajola, E. Won, S. Watanuki, T. Uglov, M. T. Prim, Z. P. Zhang, T. V. Dong, Y. Sakai, V.N. Zhilich, Y. Kato, S. Sandilya, K. Lieret, F. Tenchini, V. Gaur, S.-J. Cho, T. Podobnik, G. Pakhlova, C.-L. Hsu, M. Starič, N. Dash, E. Solovieva, C. Sharma, M. Nayak, K. Senyo, Peter Kodys, W. W. Jacobs, T. Sanuki, C. P. Shen, Seok Kim, Shih-Chang Lee, D. Matvienko, F. Di Capua, C. H. Kim, G. Karyan, H. Kichimi, P. Pakhlov, N. Gabyshev, D. Červenkov, Rocky Bala Garg, W. B. Yan, Sadaharu Uehara, C. Hadjivasiliou, J. H. Yin, M. Bračko, A. Chen, G. De Nardo, G. B. Mohanty, M. Shapkin, M. Röhrken, K. Chilikin, C. Z. Yuan, Y. Choi, V. Popov, L. Santelj, R. Pestotnik, S. K. Choi, K. Gudkova, Felix Metzner, K. K. Joo, and T. J. Moon
Subjects: Physics, 010308 nuclear & particles physics, Branching fraction, media_common.quotation_subject, Zero (complex analysis), General Physics and Astronomy, Branching (polymer chemistry), 01 natural sciences, Asymmetry, Crystallography, KEKB, 0103 physical sciences, 010306 general physics, media_common, Lepton
Abstract: Using data samples of 89.5 and 711fb$^{-1}$ recorded at energies of $\sqrt{s}$=10.52 and 10.58 GeV, respectively, with the Belle detector at the KEKB e$^{+}$e$^{-}$ collider, we report measurements of branching fractions of semileptonic decays Ξ$_{c}$$^{0}$ → Ξ$^{-}$l$^{+}$ν$_{l}$(l=e or μ) and the CP-asymmetry parameter of Ξ$_{c}$$^{0}$ → Ξ$^{-}$π$^{+}$ decay. The branching fractions are measured to be B(Ξ$_{c}$$^{0}$ → Ξ$^{-}$e$^{+}$ν$_{e}$)= 1.31±0.04±0.07±0.38)% and B(Ξ$_{c}$$^{0}$ → Ξ$^{-}$μ$^{+}$ν$_{μ}$ = (1.27±0.06±0.10±0.37)% , and the decay parameter α$_{Ξπ}$ is measured to be 0.63±0.03±0.01 with much improved precision compared with the current world average. The corresponding ratio B(Ξ$_{c}$$^{0}$ → Ξ$^{-}$e$^{+}$ν$_{e}$) /B(Ξ$_{c}$$^{0}$ → Ξ$^{-}$μ$^{+}$ν$_{μ}$) is 1.03±0.05±0.07, which is consistent with the expectation of lepton flavor universality. The first measured asymmetry parameter A$_{CP}$=(α$_{Ξ^{-}π^{+}}$+α$_{Ξ^{+}π^{-}}$)/(α$_{Ξ^{-}π^{+}}$+α$_{Ξ^{+}π^{-}}$) = 0.024±0.052±0.014 is found to be consistent with zero. The first and the second uncertainties above are statistical and systematic, respectively, while the third ones arise due to the uncertainty of the Ξ$_{c}$$^{0}$ → Ξ$^{-}$π$^{+}$ branching fraction.
Published: 2021

9. Evidence for the decay Ωc0→π+Ω(2012)−→π+(K¯Ξ)−

Author: G. Schnell, F. Tenchini, S. Das, T. Kuhr, Y. Sakai, T. Podobnik, T. Sumiyoshi, S.-J. Cho, Antonio Budano, L. Li Gioi, K. Senyo, K. Lieret, J. Libby, K. Trabelsi, Y. Yusa, K. Kumara, P. Pakhlov, Shih-Chang Lee, C. Hadjivasiliou, G. De Pietro, F. Di Capua, E. Kovalenko, T. Sanuki, Z. S. Stottler, L. E. Piilonen, G. Pakhlova, T. Gu, P. Oskin, H. Ye, J. T. McNeil, Andrey Sokolov, A. Bozek, Y. Seino, E. Solovieva, D. Epifanov, C. H. Li, R. Ayad, M. Nayak, M. T. Prim, B. G. Cheon, K. Nishimura, M. Z. Wang, K. Kinoshita, D. Červenkov, Ya-Qiu Jin, Seema Bahinipati, T. V. Dong, Y. Choi, Shoichi Watanuki, Victoria Zhukova, R. Kroeger, L. Santelj, S. Nishida, T. K. Pedlar, D. Cinabro, A. Chen, H. Ono, S. Cunliffe, V. Chekelian, T. Mori, H. Aihara, Y. Usov, P. Chang, K. Tanida, C. Z. Yuan, K. Hayasaka, E. Prencipe, D. Matvienko, W. Sutcliffe, Jyoti Prakash Biswal, Y. Onuki, R. Van Tonder, V.E. Shebalin, A. Sangal, M. C. Chang, S. Al Said, S. Korpar, W. B. Yan, T. Matsuda, R. Mussa, R. B. Garg, B. G. Fulsom, Y. Unno, Somnath Choudhury, M. Takizawa, I. Adachi, S. Pardi, H. E. Cho, T. E. Browder, Z. Natkaniec, A. Ishikawa, Seokhee Park, S. Halder, N. Dash, M. Laurenza, John Yelton, E. Won, Z. Doležal, Seongbae Yang, Yongsun Kim, A. Vinokurova, T. Uglov, T. Bilka, M. Merola, K. Lalwani, V. M. Aulchenko, V. Gaur, G. De Nardo, S. Uno, C. Schwanda, V. Savinov, Bruce Yabsley, P. Križan, P. Krokovny, K. K. Joo, Vladimir Popov, M. Nakao, K. H. Kang, K. Cho, Doyen Sahoo, J. G. Shiu, A. Natochii, K. Inami, C. Kiesling, P. K. Behera, M. Bračko, E.-J. Jang, D. Y. Kim, T. Konno, E. Waheed, M. Sumihama, Martin Florian Bessner, Motoki Iwasaki, D. M. Asner, A. Passeri, K.-H. Kim, A. Korobov, M. Shapkin, O. Werbycka, H. Atmacan, K. Chilikin, Mukesh Kumar, Y. B. Li, H. Hayashii, M. Niiyama, E. Wang, C. H. Kim, Z. P. Zhang, R. Pestotnik, J. H. Yin, M. Uchida, L. K. Li, D. Liventsev, G. S. Varner, S. S. Tang, P. Wang, K. Gudkova, B. Golob, N. K. Nisar, C. P. Shen, Seok Kim, K. Uno, L. Nayak, V. Babu, T. Aushev, T. Ferber, G.V. Russo, V.N. Zhilich, K. Miyabayashi, W. S. Hou, Alexei Kuzmin, R. Mizuk, E. Graziani, M. Campajola, C. Sharma, Peter Kodys, W. W. Jacobs, S. E. Vahsen, P. Branchini, G. Karyan, Y. Iwasaki, Y. J. Kwon, A. K. Giri, N. Rout, M. Masuda, G. B. Mohanty, P. Goldenzweig, S. Sandilya, M. Starič, S. Jia, C. H. Wang, and S. Paul
Subjects: Physics, KEKB, 010308 nuclear & particles physics, Branching fraction, Isospin, 0103 physical sciences, Atomic physics, 010306 general physics, 01 natural sciences
Abstract: Using a data sample of 980 fb$^{-1}$ collected with the Belle detector operating at the KEKB asymmetric-energy e$^{+}$e$^{-}$ collider, we present evidence for the Ω(2012)$^{-}$ in the resonant substructure of Ω$_{c}$$^{0}$ → π$^{+}$ ($\overline{K}$ Ξ)$^{-}$ (($\overline{K}$ Ξ)$^{-}$ = K$^{-}$Ξ$^{0}$ + K$^{0}$Ξ$^{-}$ ecays. The significance of the decays. The significance of the Ω(2012)$^{-}$ signal is 4.2σ after considering the systematic uncertainties. The ratio of the branching fraction of Ω$_{c}$$^{0}$ → π$^{+}$ Ω(2012)$^{-}$ π$^{+}$ ($\overline{K}$ Ξ)$^{-}$ relative to that of Ω$_{c}$$^{0}$ → π$^{+}$ Ω$^{-}$ is calculated to be 0.220±0.059(stat.)±0.035(syst.). The individual ratios of the branching fractions of the two isospin modes are also determined and found to be B (Ω$_{c}$$^{0}$ → π$^{+}$ Ω(2012)$^{-}$) x B(Ω(2012)$^{-}$ → $\overline{K}$ Ξ$^{0}$) / B(Ω$_{c}$$^{0}$ → π$^{+}$ K$^{-}$Ξ$^{0}$ = (9.6±3.2(stat.) ±1.8(syst.))% and B (Ω$_{c}$$^{0}$ → π$^{+}$ Ω(2012)$^{-}$) x B(Ω(2012)$^{-}$ → $\overline{K}$$^{0}$ Ξ$^{-}$) / B(Ω$_{c}$$^{0}$ → π$^{+}$ $\overline{K}$$^{0}$Ξ$^{-}$) =(5.5±2.8(stat.) ±0.7(syst.))%
Published: 2021

10. Measurement of the masses and widths of the Σc(2455)+ and Σc(2520)+ baryons

Author: S-H Park, B. G. Cheon, Seema Bahinipati, T. V. Dong, M. Takizawa, Y. Choi, S. Das, T. Hara, J. V. Bennett, Y. Tao, S. Al Said, L. Santelj, H. Aihara, S. E. Vahsen, M. Uchida, L. K. Li, D. Liventsev, G. S. Varner, Y. Usov, R. Itoh, A. Rostomyan, P. Wang, Zhukova, K. Gudkova, K. Belous, L. Nayak, John Yelton, S. Korpar, D. Matvienko, Gaur, O. Hartbrich, Y. Iwasaki, U. Tamponi, N. Dash, T. Aushev, K. Senyo, S. Pardi, R. B. Garg, A. Chen, B. Bhuyan, G. De Nardo, A. Korobov, M. Sumihama, M. Niiyama, N. Rout, Motoki Iwasaki, T. Ferber, Chekelian, B. G. Fulsom, J-G Shiu, G. Schnell, S. Jia, S. Uno, C. Schwanda, T. E. Browder, Z. P. Zhang, R. Mizuk, S. Cunliffe, M. Shapkin, Andrey Sokolov, G. De Pietro, M. Laurenza, K. Chilikin, P. Goldenzweig, T. Matsuda, A. Sangal, T. Kuhr, S. Sandilya, Shih-Chang Lee, I. Adachi, M. C. Chang, Jyoti Prakash Biswal, Babu, M. Merola, Antonio Budano, Phillip Urquijo, T. Gu, Y-J Kwon, R. Kroeger, M. E. Sevior, P. Krizan, K. Kumara, M. Nakao, R. Pestotnik, M. Nayak, Ya-Qiu Jin, M. Starič, Y. B. Li, R. Dhamija, Seongbae Yang, D Wang, C.-L. Hsu, A. Vinokurova, C. Hadjivasiliou, C. H. Wang, Z. S. Stottler, L. E. Piilonen, Bruce Yabsley, K. Tanida, T. Uglov, P. Pakhlov, E. Wang, Y. Onuki, G. Pakhlova, P. Oskin, R. Kulasiri, W-S Hou, S. Paul, L. Li Gioi, C. Z. Yuan, E. Prencipe, P. Krokovny, C. Sharma, Peter Kodys, S-J Cho, J. Li, W. W. Jacobs, K. Trabelsi, H. Ye, Y. Sakai, K. H. Kang, K. Cho, S. K. Choi, T. J. Moon, K. T. Kim, D. Cinabro, C. P. Shen, Zdenek Dolezal, Seok Kim, H. Park, T. Konno, A. Bozek, K. Lieret, Martin Florian Bessner, R. Ayad, N. Gabyshev, D. Červenkov, D. Epifanov, A. Garmash, P. Branchini, D. Y. Kim, K. Sumisawa, S. Nishida, D. M. Asner, T. K. Pedlar, Zhilich, P. K. Behera, F. Tenchini, A. K. Giri, E. Solovieva, P. Chang, T. Podobnik, T. Sumiyoshi, Yk Kim, K. Hayasaka, R. Mussa, T. Sanuki, M. Masuda, R. Van Tonder, G. B. Mohanty, A. Ishikawa, H. E. Cho, Doyen Sahoo, S. Ogawa, Somnath Choudhury, W. B. Yan, E. Waheed, Z. Natkaniec, J. Libby, E. Kovalenko, Y. Seino, M. T. Prim, Shoichi Watanuki, T. Bilka, M. Watanabe, J. C. Dingfelder, F. Di Capua, K. K. Joo, A. B. Kaliyar, J. Schueler, E. Won, C. MacQueen, J. K. Ahn, H. Atmacan, G.V. Russo, E. Graziani, J. H. Yin, M. Campajola, Y. Kato, D. Ferlewicz, N. K. Nisar, Bhardwaj, J. S. Lange, K. Miyabayashi, C. Kiesling, M. Bračko, H. Ono, Y. Unno, H. Hayashii, C. H. Kim, M. Z. Wang, K. Kinoshita, Aulchenko, A. Natochii, K. Inami, Savinov, and J. T. McNeil
Subjects: Physics, Quark, Particle physics, 010308 nuclear & particles physics, Sigma, Lambda, 01 natural sciences, law.invention, Baryon, Charmed baryons, KEKB, law, 0103 physical sciences, 010306 general physics, Collider
Abstract: Using 980 ${\rm fb}^{-1}$ of data {collected} with the Belle detector operating at the KEKB asymmetric-energy $e^+e^-$ collider, we report the measurements of the masses, and the first measurements of the instrinsic widths, of the $\Sigma_c(2455)^+$ and $\Sigma_c(2520)^+$ charmed baryons. We find $M(\Sigma_c(2455)^+)-M(\Lambda_c^+) = 166.17\pm 0.05^{+0.16}_{-0.07}\ {\rm MeV}/c^2$, $\Gamma(\Sigma_c(2455)^+) = 2.3 \pm 0.3 \pm 0.3\ {\rm MeV/c^2}$, $M(\Sigma_c(2520)^+)-M(\Lambda_c^+) = 230.9 \pm 0.5 ^{+0.5}_{-0.1}\ {\rm MeV}/c^2$, and $\Gamma(\Sigma_c(2520)^+) = 17.2^{+2.3\ +3.1}_{-2.1\ -0.7}\ {\rm MeV}/c^2$, where the uncertainties are statistical and systematic, respectively. These measurements can be used to test models of the underlying quark structure of the $\Sigma_c$ states.
Published: 2021

11. 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

12. 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

13. 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

14. 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

15. Measurements of the branching fractions ofΛc+→pηandΛc+→pπ0decays at Belle

Author: Jyoti Prakash Biswal, S. Eidelman, P. Pakhlov, P. Goldenzweig, S. Cunliffe, S. Sandilya, M. Sumihama, Martin Florian Bessner, Motoki Iwasaki, M. C. Chang, M. Nakao, H. Park, A. Bozek, D. Epifanov, Soumya D. Mohanty, S-H Park, A. Ishikawa, B. H. Kim, Doyen Sahoo, E. Wang, T. Pang, M. Takizawa, D. Y. Kim, C. Z. Yuan, R. Mizuk, D. M. Asner, F. Di Capua, T. K. Pedlar, Y. Sakai, A. Chen, I. Adachi, K. Hayasaka, A. Bobrov, H. E. Cho, R. B. Garg, B. Bhuyan, B. G. Fulsom, J-G Shiu, G.V. Russo, K. Lieret, T. E. Browder, Y-J Kwon, Florian Urs Bernlochner, Z. P. Zhang, J. K. Ahn, A. Korobov, L. Nayak, W-S Hou, E. Prencipe, Zhulanov, R. Dhamija, L. E. Piilonen, G. Pakhlova, Shebalin, Alexei Kuzmin, T. Aushev, John Yelton, C.-L. Hsu, R. Kroeger, M. E. Sevior, I. S. Lee, R. Ayad, P. Krizan, M. Uchida, L. K. Li, Phillip Urquijo, Y. Yusa, C. Sharma, Peter Kodys, W. W. Jacobs, M. Campajola, S. Uehara, Shih-Chang Lee, T. Ferber, G. Schnell, T. Iijima, T. Uglov, C. W. Joo, K. Tanida, Y. Kato, D. Ferlewicz, Zhilich, D. Liventsev, E. Solovieva, S. Nishida, Zdenek Dolezal, G. De Nardo, M. Niiyama, Y. Iwasaki, H. Ono, T. Matsuda, Y. B. Li, A. B. Kaliyar, M. T. Hedges, S. Das, G. Karyan, T. Konno, K. Lalwani, T. Kuhr, G. S. Varner, B. Shwartz, Seongbae Yang, J. V. Bennett, Y. Tao, S. Uno, C. Schwanda, H. Kichimi, T. Mori, H. Aihara, A. Vossen, J. Schueler, R. Van Tonder, N. Rout, A. K. Giri, Yk Kim, F. Tenchini, T. Podobnik, T. Sumiyoshi, M. Shapkin, K. Kumara, A. Natochii, M. Masuda, K. Inami, Savinov, E. Won, R. Itoh, B. G. Cheon, E.-J. Jang, M. Röhrken, K. Chilikin, W. Sutcliffe, Y. Onuki, Z. S. Stottler, A. Garmash, A. Rostomyan, P. Wang, Zhukova, Seema Bahinipati, T. V. Dong, T. Sanuki, T. Bilka, SX Li, P. Krokovny, L. Cao, Y. Choi, M. Z. Wang, K. Kinoshita, K. Gudkova, X. P. Xu, K. H. Kang, K. Cho, Popov, L. Santelj, Sudhanwa Patra, K. Trabelsi, C. H. Li, Ya-Qiu Jin, S. Korpar, R. Pestotnik, C. P. Shen, Seok Kim, N. Dash, A. Sangal, P. K. Behera, D. Matvienko, Mukesh Kumar, H. Hayashii, Gaur, O. Hartbrich, Babu, M. Merola, K. Senyo, J. H. Yin, C. H. Kim, T. Kawasaki, S. Jia, K. T. Kim, W. B. Yan, C. Hadjivasiliou, Z. Natkaniec, B. Golob, O. Grzymkowska, C. H. Wang, S. Paul, L. Li Gioi, Felix Metzner, N. K. Nisar, H. Ye, Bhardwaj, J. S. Lange, K. Uno, K. K. Joo, S. Pardi, Bruce Yabsley, D. Cinabro, G. Inguglia, Somnath Choudhury, J. Libby, E. Kovalenko, Y. Seino, M. T. Prim, and Shoichi Watanuki
Subjects: Quark, Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Branching fraction, Branching (polymer chemistry), 01 natural sciences, law.invention, KEKB, law, 0103 physical sciences, Invariant mass, 010306 general physics, Collider
Abstract: We report measurements of the branching fractions of singly Cabibbo-suppressed decays Λc+→pη and Λc+→pπ0 using the full Belle data sample corresponding to an integrated luminosity of 980.6 fb-1. The data were collected by the Belle detector at the KEKB e+e- asymmetric energy collider. A clear Λc+ signal is seen in the invariant mass distribution of pη. The fitted number of signal events of the Λc+→pη process is 7734±263; from this, we measure the ratio of branching fractions B(Λc+→pη)/B(Λc+→pK-π+)=[2.258±0.077(stat)±0.122(syst)]×10-2, from which we infer the branching fraction B(Λc+→pη)=[1.42±0.05(stat)±0.11(syst)]×10-3. In addition, no significant signal for Λc+→pπ0 is found, so an upper limit on the branching fraction of B(Λc+→pπ0)
Published: 2021

16. Measurement of branching fraction and search for CP violation in B→ϕϕK

Author: G. Schnell, S. Das, K. Tanida, W. B. Yan, Jyoti Prakash Biswal, Z. J. Liptak, J. Wiechczynski, K. Hayasaka, A. Bobrov, M. Uchida, P. Goldenzweig, V. Gaur, A. B. Kaliyar, S. Cunliffe, S. Sandilya, L. K. Li, Y. Guan, M. Nakao, J. Schueler, Motoki Iwasaki, C. W. Park, E. Won, J. G. Shiu, D. Liventsev, E. Wang, M. Starič, M. Takizawa, L. E. Piilonen, M. E. Sevior, G. Pakhlova, P. Oskin, F. Di Capua, G. S. Varner, R. Kulasiri, C.-L. Hsu, M. Bračko, H. Atmacan, A. Sangal, S. Mohanty, R. Itoh, S. Jia, S.-J. Cho, M. Merola, A. Rostomyan, Victoria Zhukova, P. Wang, T. Matsuda, Z. Doležal, Y. Onuki, Z. P. Zhang, C. Sharma, Peter Kodys, W. W. Jacobs, K. Gudkova, J. H. Yin, O. Grzymkowska, C. H. Wang, A. Chen, J. Libby, G. De Nardo, L. Li Gioi, J. F. Strube, Kohei Ogawa, Seok Kim, V. M. Aulchenko, A. Vinokurova, Y. B. Li, L. Nayak, V. Babu, T. Aushev, Rahul Kumar, G. Karyan, Frank Simon, H. Ye, A. Natochii, B. Golob, I. Adachi, F. Tenchini, K. Inami, P. Krokovny, Vladimir Popov, Kevin Varvell, N. K. Nisar, T. Podobnik, Shih-Chang Lee, T. Ferber, T. Sumiyoshi, S. Al Said, K. H. Kang, K. Cho, Y. Seino, J. Li, M. T. Prim, T. J. Moon, Sudhanwa Patra, A. K. Giri, Shoichi Watanuki, D. Cinabro, T. Konno, Y. Tao, H. Aihara, Y. Usov, T. Sanuki, K. Senyo, B. Shwartz, Y. Sakai, S. Halder, T. Bilka, M. Masuda, G. B. Mohanty, B. H. Kim, Yongsun Kim, M. Shapkin, K. Lalwani, S. Uno, C. Schwanda, M. Röhrken, Mukesh Kumar, S. K. Choi, K. Chilikin, Somnath Choudhury, E. Prencipe, H. Hayashii, S. Pardi, C. H. Kim, S. Ogawa, N. Gabyshev, D. Červenkov, E. Solovieva, Y. Unno, M. Z. Wang, K. Kinoshita, M. Nayak, X. P. Xu, Martin Florian Bessner, R. Pestotnik, D. Kotchetkov, Bruce Yabsley, R. Mizuk, Ya-Qiu Jin, D. M. Asner, R. Dhamija, C. MacQueen, A. J. Schwartz, M. Campajola, V.N. Zhilich, K. Miyabayashi, Tariq Aziz, S. Eidelman, Seema Bahinipati, T. V. Dong, Y. Choi, V. Bhardwaj, T. K. Pedlar, R. Mussa, H. B. Jeon, B. G. Cheon, A. Ishikawa, H. Park, A. Bozek, S. Korpar, N. Dash, P. Križan, S. Nishida, Doyen Sahoo, K. Kumara, X. L. Wang, V. Chekelian, Z. S. Stottler, K. K. Joo, R. Van Tonder, Seokhee Park, B. G. Fulsom, T. E. Browder, D. Y. Kim, V. Savinov, C. Hadjivasiliou, S. E. Vahsen, Y. J. Kwon, N. Rout, A. Garmash, K. Adamczyk, G.V. Russo, W. S. Hou, V. Vorobyev, and P. K. Behera
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, media_common.quotation_subject, Resonance, 01 natural sciences, Asymmetry, law.invention, KEKB, law, 0103 physical sciences, CP violation, 010306 general physics, Collider, media_common
Abstract: We report the measurement of branching fractions and CP-violation asymmetries in B→φφK decays based on a 711 fb-1 data sample containing 772×106 BB¯ events. The data were recorded at the I(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. For B+→φφK+, the branching fraction and CP-violation asymmetry measured below the ηc threshold (mφφ
Published: 2021

17. 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

18. Measurement of time-dependent CP violation parameters in B0→KS0KS0KS0 decays at Belle

Author: R. Mizuk, C. Beleño, A. B. Kaliyar, L. Li Gioi, H. Miyata, Yongsun Kim, J. Li, J. Schueler, S. Uno, C. Schwanda, H. Ye, T. J. Moon, E. Won, A. K. Giri, K. Trabelsi, M. Masuda, G. B. Mohanty, K. Hayasaka, S. Pardi, L. Cao, M. Z. Wang, K. Kinoshita, S. Cunliffe, Seok Kim, Y. Guan, M. Shapkin, M. C. Chang, C.-L. Hsu, M. Takizawa, Y. Yusa, Z. P. Zhang, Peter Kodys, W. W. Jacobs, M. Röhrken, V. Babu, P. Goldenzweig, H. Ono, K. Chilikin, A. Garmash, Daniel Greenwald, G. Karyan, A. Sangal, G.V. Russo, T. Aushev, G. Schnell, C. MacQueen, H. Nakazawa, A. M. Bakich, J. E. Fast, B. G. Cheon, J. K. Ahn, S. Sandilya, L. E. Piilonen, G. Pakhlova, P. Oskin, R. Kulasiri, W. S. Hou, T. Ferber, M. Nayak, D. Matvienko, R. B. Garg, A. J. Schwartz, Z. Doležal, K. Sumisawa, M. Merola, Motoki Iwasaki, D. M. Asner, Alexei Kuzmin, D. Y. Kim, Ya-Qiu Jin, M. Starič, Y. Ushiroda, N. Gabyshev, D. Červenkov, B. G. Fulsom, Bruce Yabsley, P. K. Behera, V. Vorobyev, Jyoti Prakash Biswal, Seema Bahinipati, T. E. Browder, T. V. Dong, Y. Choi, Seokhee Park, L. Santelj, K. H. Kang, Y. Unno, R. Pestotnik, M. Campajola, T. Bilka, J. H. Yin, S. Korpar, Seongbae Yang, I. Adachi, K.-H. Kim, W. Sutcliffe, Y. Onuki, V. Gaur, W. B. Yan, H. Hayashii, O. Hartbrich, N. Dash, G. De Nardo, M. Mrvar, C. H. Kim, F. Tenchini, V. Savinov, E.-J. Jang, Z. Natkaniec, T. Podobnik, T. Sumiyoshi, M. Nakao, Rahul Kumar, U. Tamponi, B. Golob, C. Kiesling, S. Ogawa, N. K. Nisar, M. Hernandez Villanueva, R. Mussa, T. Morii, Victoria Zhukova, T. Higuchi, Vladimir Popov, J. G. Shiu, Martin Ritter, H. B. Jeon, J. S. Lange, T. Sanuki, J. MacNaughton, J. Libby, A. Ishikawa, V.E. Shebalin, Y. Iwasaki, Y. J. Kwon, A. Chen, S. Jia, S. Nishida, V.N. Zhilich, E. Wang, V. M. Aulchenko, Z. S. Stottler, P. Križan, K. K. Joo, R. Ayad, N. Rout, Phillip Urquijo, M. Bračko, Doyen Sahoo, Y. Sakai, S. K. Choi, K. Lieret, X. L. Wang, Y. B. Li, T. Uglov, K. Miyabayashi, Kohei Ogawa, C. H. Wang, Y. Seino, M. T. Prim, S. Paul, J. V. Bennett, T. Mori, H. Aihara, Shoichi Watanuki, K. Inami, K. Nishimura, V. Chekelian, D. Cinabro, C. Z. Yuan, V. V. Zhulanov, E. Solovieva, G. Inguglia, E. Prencipe, S. Eidelman, X. P. Xu, M. Rozanska, D. Kotchetkov, P. Pakhlov, Shih-Chang Lee, Sudhanwa Patra, Samo Stanič, H. Park, A. Bozek, V. Bhardwaj, K. Tanida, T. K. Pedlar, H. Kichimi, R. Kroeger, M. E. Sevior, I. S. Lee, T. Matsuda, G. Bonvicini, A. Vinokurova, P. Krokovny, K. Cho, M. Uchida, L. K. Li, D. Liventsev, G. S. Varner, A. Rostomyan, P. Wang, M. V. Purohit, K. Senyo, T. Kawasaki, and S. Al Said
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Zero (complex analysis), Resonance, 01 natural sciences, law.invention, Standard Model, KEKB, law, 0103 physical sciences, CP violation, 010306 general physics, Collider
Abstract: We measure the time-dependent $C\!P$ violation parameters in $B^{0} \to K^{0}_{S}K^{0}_{S}K^{0}_{S}$ decays using $772 \times 10^6$ $B {\mkern 1.5mu\overline{\mkern-1.5mu B \mkern-0.1mu}\mkern 0.1mu}$ pairs collected at the $\Upsilon (4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. The obtained mixing-induced and direct $C\!P$ asymmetries are $-0.71 \pm 0.23~{\rm(stat)} \pm 0.05~{\rm(syst)}$ and $0.12 \pm 0.16~{\rm(stat)} \pm 0.05~{\rm(syst)}$, respectively. These values are consistent with the Standard Model predictions. The significance of $C\!P$ violation differs from zero by 2.5 standard deviations.
Published: 2021

19. Search for lepton-flavor-violating tau-lepton decays to ℓγ at Belle

Author: J. Libby, D. M. Asner, K. Hayasaka, M. Bračko, B.A. Shwartz, E. Kovalenko, J. G. Shiu, M. Uchida, J. Biswal, M. Takizawa, Y. Seino, M. Starič, E. Prencipe, V. Bhardwaj, H. Nakazawa, M. T. Prim, Y. Jin, Phillip Urquijo, R. Kroeger, G. S. Varner, C.-L. Hsu, S. E. Vahsen, M. E. Sevior, Z. Doležal, P. Goldenzweig, V.N. Zhilich, Y. Kato, M. Sumihama, Y. B. Li, L. E. Piilonen, K. Trabelsi, C. MacQueen, R. Itoh, Y. Ushiroda, D. Epifanov, H. Hayashii, W. Sutcliffe, M. Campajola, K. Miyabayashi, A. Rostomyan, P. Oskin, E. Waheed, C. Sharma, Peter Kodys, W. W. Jacobs, B. G. Fulsom, D. Cinabro, L. Li Gioi, Tomoyuki Konno, Andrey Sokolov, Y. J. Kwon, Tagir Aushev, V. Zhukova, Y. Choi, G. Inguglia, M. Iwasaki, T. Podobnik, A. Korobov, M. Kumar, S. Uno, C. Schwanda, Y. Tao, H. Park, N. Rout, Y. Usov, R. Mizuk, Rocky Bala Garg, A. Bozek, M. Z. Wang, F. Di Capua, A. Frey, M. Röhrken, M. Niiyama, S.-J. Cho, V. Gaur, S. Nishida, Z. P. Zhang, X. L. Wang, S.-H. Park, J. Bennett, K. Tanida, Semen Eidelman, C. P. Shen, Seok Kim, Somnath Choudhury, S. Pardi, Dipak Kumar Sahoo, Sadaharu Uehara, T. Hara, Y. Unno, A. Sangal, G. B. Mohanty, Hiroaki Aihara, L. Nayak, V. Babu, A. Garmash, R. Van Tonder, Shih-Chang Lee, Y. Sakai, Samo Korpar, Steve K. Choi, Luka Santelj, R. Ayad, G. Schnell, S. Sandilya, T. Iijima, G. Pakhlova, P. Pakhlov, M. Merola, Y. Yusa, T. Ferber, C. H. Kim, F. Tenchini, A. K. Giri, A. Bobrov, D. Y. Kim, Bruce Yabsley, K. Senyo, D. Matvienko, D. Liventsev, C. Hadjivasiliou, V. Savinov, H. E. Cho, R. Pestotnik, Kohei Ogawa, M. Masuda, A. Natochii, T. Sumiyoshi, K. Inami, Iki Adachi, H. Ye, T. V. Dong, K. Matsuoka, K. Kumara, T. Kuhr, H. Kichimi, T. Uglov, E. Won, Z. S. Stottler, A. Ishikawa, K. Lieret, T. Sanuki, Felix Metzner, M. Nakao, G. Bonvicini, P. Križan, E. Wang, Jochen Dingfelder, W. B. Yan, K.-H. Kim, A. Vinokurova, O. Hartbrich, S. Cunliffe, O. Werbycka, M. Bessner, A. Kuzmin, M. Hernandez Villanueva, M. C. Chang, H. Atmacan, K. K. Joo, Y.-T. Lai, S. Ogawa, C. H. Wang, P. Krokovny, Rakesh Kumar, K. H. Kang, K. Cho, N. Gabyshev, D. Červenkov, N. K. Nisar, J. S. Lange, K. Uno, G.V. Russo, W. S. Hou, J. H. Yin, Florian Urs Bernlochner, C. Kiesling, N. Dash, E. Solovieva, S. Paul, A. Vossen, K. Nishimura, Frank Simon, Belle, Collaboration, Campajola, M., De Nardo, G., Di Capua, F., Merola, M., Pardi, S., Russo, G., and Et, Al.
Subjects: Nuclear and High Energy Physics, Particle physics, Physics beyond the Standard Model, QC770-798, +, 01 natural sciences, Nuclear and particle physics. Atomic energy. Radioactivity, 0103 physical sciences, Radiative transfer, ddc:530, 010306 general physics, Flavor, Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, e, High Energy Physics::Phenomenology, −, e +-e − Experiments, Belle experiment, Standard Model (mathematical formulation), Full data, High Energy Physics::Experiment, Experiments, Lepton
Abstract: Charged lepton flavor violation is forbidden in the Standard Model but possible in several new physics scenarios. In many of these models, the radiative decays τ± → ℓ±γ (ℓ = e, μ) are predicted to have a sizeable probability, making them particularly interesting channels to search at various experiments. An updated search via τ± → ℓ±γ using full data of the Belle experiment, corresponding to an integrated luminosity of 988 fb−1, is reported for charged lepton flavor violation. No significant excess over background predictions from the Standard Model is observed, and the upper limits on the branching fractions, $$ \mathcal{B} $$ B (τ± → μ±γ) ≤ 4.2 × 10−8 and $$ \mathcal{B} $$ B (τ± → e±γ) ≤ 5.6 × 10−8, are set at 90% confidence level.
Published: 2021

20. Measurements of branching fractions and asymmetry parameters of $ {\Xi}_c^0\to \Lambda {\overline{K}}^{\ast 0} $, $ {\Xi}_c^0\to {\Sigma}^0{\overline{K}}^{\ast 0} $, and $ {\Xi}_c^0\to {\Sigma}^{+}{K}^{\ast -} $ decays at Belle

Author: Tagir Aushev, M. Bračko, V. Zhukova, Y. Onuki, G. De Nardo, E. Prencipe, G. Schnell, T. Iijima, Felix Metzner, F. Tenchini, H. Park, A. Bozek, V.M. Aulchenko, T. Sumiyoshi, T. Kuhr, V.N. Zhilich, Y. Kato, K. K. Joo, H. Miyata, Prafulla Kumar Behera, K. Miyabayashi, R. Mizuk, Andrey Sokolov, Iki Adachi, T. Podobnik, H. E. Cho, G. B. Mohanty, Y. Yusa, L. Nayak, V. Babu, Semen Eidelman, R. Mussa, C. MacQueen, S. Cunliffe, A. Bobrov, A. Ishikawa, M. Nakao, M. Niiyama, P. Križan, A. Garmash, V. Savinov, R. Dhamija, D. Liventsev, D. Epifanov, M. C. Chang, T. Ferber, T. Bilka, N. K. Nisar, M. Iwasaki, B. G. Cheon, Shih-Chang Lee, S. Pardi, M. Watanabe, C.-L. Hsu, Y. Iwasaki, J. S. Lange, K. Uno, L. E. Piilonen, M. Campajola, T. E. Browder, T. Uglov, P. Oskin, Y. J. Kwon, C. H. Kim, R. Ayad, K. Chilikin, K. Trabelsi, J. Li, C. Sharma, Peter Kodys, Seema Bahinipati, S. Nishida, Y. Choi, W. W. Jacobs, V. Popov, Z. P. Zhang, V. Gaur, S. K. Choi, H. Hayashii, N. Rout, M. Bessner, K.-H. Kim, J. Biswal, L. K. Li, D. Y. Kim, Tomoyuki Konno, M. Nayak, K. Flood, E. Won, J. H. Yin, V. Chekelian, Bruce Yabsley, G. Karyan, Seongbae Yang, M. Z. Wang, K. Kinoshita, S. Das, S.-J. Cho, C. H. Wang, S.-H. Park, O. Werbycka, R. Pestotnik, A. K. Giri, S. Paul, J. Bennett, S. Jia, R. Van Tonder, G. Pakhlova, S. Al Said, T. Matsuda, H. Ono, M. Masuda, J. Libby, D. M. Asner, K. Hayasaka, S. Sandilya, H. Ye, S. Patra, C. Z. Yuan, Dipak Kumar Sahoo, J. T. McNeil, G. Bonvicini, C. P. Shen, G.V. Russo, Seok Kim, E. Kovalenko, T. V. Dong, M. Starič, W. S. Hou, J. G. Shiu, Yongsun Kim, K. Lalwani, Y. Seino, Y. Unno, O. Hartbrich, S. Uno, C. Schwanda, M. Sumihama, P. Krokovny, Y. Jin, Rocky Bala Garg, M. T. Prim, Phillip Urquijo, Kohei Ogawa, M. Takizawa, L. Li Gioi, A. Korobov, A. Kuzmin, Sadaharu Uehara, A. Natochii, K. Cho, R. Kroeger, D. Cinabro, Y. B. Li, K. Inami, John Yelton, Z. Doležal, S. Ogawa, H. Aihara, Y. Usov, M. E. Sevior, H. Kichimi, P. Goldenzweig, Somnath Choudhury, N. Gabyshev, D. Červenkov, A. Chen, A. Sangal, M. Merola, E. Waheed, K. Senyo, K. Tanida, D. Matvienko, G. S. Varner, R. Itoh, S. S. Tang, A. Rostomyan, P. L. Wang, B. G. Fulsom, K. Kumara, Z. S. Stottler, Samo Korpar, F. Di Capua, P. Pakhlov, W. B. Yan, K. Nishimura, K. Lieret, and E. Solovieva
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, media_common.quotation_subject, Sigma, Lambda, 01 natural sciences, Asymmetry, Combinatorics, 0103 physical sciences, ddc:530, 010306 general physics, media_common
Abstract: Using a data sample of 980 fb−1 collected with the Belle detector at the KEKB asymmetric-energy e+e− collider, we study the processes of $$ {\Xi}_c^0\to \Lambda {\overline{K}}^{\ast 0} $$ Ξ c 0 → Λ K ¯ ∗ 0 , $$ {\Xi}_c^0\to {\Sigma}^0{\overline{K}}^{\ast 0} $$ Ξ c 0 → Σ 0 K ¯ ∗ 0 , and $$ {\Xi}_c^0\to {\Sigma}^{+}{K}^{\ast -} $$ Ξ c 0 → Σ + K ∗ − for the first time. The relative branching ratios to the normalization mode of $$ {\Xi}_c^0\to {\Xi}^{-}{\pi}^{+} $$ Ξ c 0 → Ξ − π + are measured to be$$ {\displaystyle \begin{array}{c}\mathcal{B}\left({\Xi}_c^0\to \Lambda {\overline{K}}^{\ast 0}\right)/\mathcal{B}\left({\Xi}_c^0\to {\Xi}^{-}{\pi}^{+}\right)=0.18\pm 0.02\left(\mathrm{stat}.\right)\pm 0.01\left(\mathrm{syst}.\right),\\ {}\mathcal{B}\left({\Xi}_c^0\to {\Sigma}^0{\overline{K}}^{\ast 0}\right)/\mathcal{B}\left({\Xi}_c^0\to {\Xi}^{-}{\pi}^{+}\right)=0.69\pm 0.03\left(\mathrm{stat}.\right)\pm 0.03\left(\mathrm{syst}.\right),\\ {}\mathcal{B}\left({\Xi}_c^0\to {\Sigma}^{+}{K}^{\ast -}\right)/\mathcal{B}\left({\Xi}_c^0\to {\Xi}^{-}{\pi}^{+}\right)=0.34\pm 0.06\left(\mathrm{stat}.\right)\pm 0.02\left(\mathrm{syst}.\right),\end{array}} $$ B Ξ c 0 → Λ K ¯ ∗ 0 / B Ξ c 0 → Ξ − π + = 0.18 ± 0.02 stat . ± 0.01 syst . , B Ξ c 0 → Σ 0 K ¯ ∗ 0 / B Ξ c 0 → Ξ − π + = 0.69 ± 0.03 stat . ± 0.03 syst . , B Ξ c 0 → Σ + K ∗ − / B Ξ c 0 → Ξ − π + = 0.34 ± 0.06 stat . ± 0.02 syst . , where the uncertainties are statistical and systematic, respectively. We obtain$$ {\displaystyle \begin{array}{c}\mathcal{B}\left({\Xi}_c^0\to \Lambda {\overline{K}}^{\ast 0}\right)=\left(3.3\pm 0.3\left(\mathrm{stat}.\right)\pm 0.2\left(\mathrm{syst}.\right)\pm 1.0\left(\mathrm{ref}.\right)\right)\times {10}^{-3},\\ {}\mathcal{B}\left({\Xi}_c^0\to {\Sigma}^0{\overline{K}}^{\ast 0}\right)=\left(12.4\pm 0.5\left(\mathrm{stat}.\right)\pm 0.5\left(\mathrm{syst}.\right)\pm 3.6\left(\mathrm{ref}.\right)\right)\times {10}^{-3},\\ {}\mathcal{B}\left({\Xi}_c^0\to {\Sigma}^{+}{K}^{\ast 0}\right)=\left(6.1\pm 1.0\left(\mathrm{stat}.\right)\pm 0.4\left(\mathrm{syst}.\right)\pm 1.8\left(\mathrm{ref}.\right)\right)\times {10}^{-3},\end{array}} $$ B Ξ c 0 → Λ K ¯ ∗ 0 = 3.3 ± 0.3 stat . ± 0.2 syst . ± 1.0 ref . × 10 − 3 , B Ξ c 0 → Σ 0 K ¯ ∗ 0 = 12.4 ± 0.5 stat . ± 0.5 syst . ± 3.6 ref . × 10 − 3 , B Ξ c 0 → Σ + K ∗ 0 = 6.1 ± 1.0 stat . ± 0.4 syst . ± 1.8 ref . × 10 − 3 , where the uncertainties are statistical, systematic, and from $$ \mathcal{B}\left({\Xi}_c^0\to {\Xi}^{-}{\pi}^{+}\right) $$ B Ξ c 0 → Ξ − π + , respectively. The asymmetry parameters $$ \alpha \left({\Xi}_c^0\to \Lambda {\overline{K}}^{\ast 0}\right) $$ α Ξ c 0 → Λ K ¯ ∗ 0 and $$ \alpha \left({\Xi}_c^0\to {\Sigma}^{+}{K}^{\ast -}\right) $$ α Ξ c 0 → Σ + K ∗ − are 0.15 ± 0.22(stat.) ± 0.04(syst.) and −0.52 ± 0.30(stat.) ± 0.02(syst.), respectively, where the uncertainties are statistical followed by systematic.
Published: 2021

21. Erratum to: Revised constraints and Belle II sensitivity for visible and invisible axion-like particles

Author: T. Ferber, Matthew J. Dolan, Felix Kahlhoefer, Kai Schmidt-Hoberg, and C. Hearty
Subjects: Nuclear and High Energy Physics, Particle physics, Proton, Mistake, BELLE, 01 natural sciences, law.invention, law, long-lived [particle], 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, ddc:530, freeze-out, Beam dump, Sensitivity (control systems), 010306 general physics, numerical calculations, Axion, Physics, 010308 nuclear & particles physics, new physics, dark matter: relic density, pseudoscalar [interaction], electron positron: colliding beams, sensitivity, Cosmology of Theories beyond the SM, interaction: pseudoscalar, Beyond Standard Model, beam dump, lcsh:QC770-798, axion-like particles, colliding beams [electron positron], relic density [dark matter], S029IAG, particle: long-lived
Abstract: Journal of high energy physics 2021(3), 190 (2021). doi:10.1007/JHEP03(2021)190, A mistake has been found in the numerical code used to reproduce the bounds from protonbeam dump experiments from ref. [1] in figures 2 and 7 of ref. [2]. Correcting this mistake leads to slightly stronger bounds as shown below. We note that this correction doesnot include recent improvements in the analysis of proton beam dump experiments [3].Additional recent bounds on GeV-scale ALPs can be found in refs. [4��8]., Published by SISSA, [Trieste]
Published: 2021

22. Search for a doubly charged DDK bound state in ϒ(1S, 2S) inclusive decays and via direct production in e+e− collisions at s=10.520 , 10.580, and 10.867 GeV

Author: R. Mussa, H. Miyata, Prafulla Kumar Behera, H. B. Jeon, A. Ishikawa, S. Al Said, H. Ye, M. Nakao, P. Križan, M. Uchida, Saraju P. Mohanty, Yongsun Kim, K. Lalwani, C. Schwanda, V. Bhardwaj, L. Santelj, S. Watanuki, Z. P. Zhang, M. Z. Wang, K. Kinoshita, C. Z. Yuan, E. Prencipe, G. S. Varner, R. Kulasiri, U. Tamponi, M. Shapkin, M. Röhrken, K. Chilikin, S. E. Vahsen, V.N. Zhilich, A. B. Kaliyar, W. Sutcliffe, M. Sumihama, D. Epifanov, S. Nishida, Martin Florian Bessner, J. Bennett, A. Rostomyan, P. Wang, B. G. Fulsom, Y. Iwasaki, J. G. Shiu, T. K. Pedlar, J. Schueler, G. Schnell, L. K. Li, K. Miyabayashi, R. Ayad, Seema Bahinipati, Jochen Dingfelder, W. B. Yan, Y. J. Kwon, V. Gaur, C. H. Wang, G. Pakhlova, R. Pestotnik, Dipak Kumar Sahoo, Seongbae Yang, C. W. Joo, Y. B. Li, K. Tanida, E. Won, L. Li Gioi, G. De Nardo, M. T. Hedges, N. Rout, S. Jia, T. Matsuda, S. Uno, Tagir Aushev, Y. Onuki, T. Kuhr, C. MacQueen, C. H. Li, M. Iwasaki, B. G. Cheon, M. Niiyama, Jyoti Prakash Biswal, A. Garmash, Andrey Sokolov, G. Bonvicini, A. Vinokurova, A. Natochii, T. Bilka, D. Y. Kim, K. Inami, Z. J. Liptak, R. Itoh, P. Krokovny, F. Tenchini, M. Campajola, K. Belous, S. Korpar, M. Watanabe, S. Sandilya, T. Podobnik, T. Sumiyoshi, Rakesh Kumar, K. H. Kang, K. Cho, S. C. Lee, F. Di Capua, Martin Ritter, Victoria Zhukova, B.A. Shwartz, I. Adachi, Semen Eidelman, A. Chen, T. Sanuki, S. Pardi, M. Starič, L. E. Piilonen, P. Oskin, H. Hayashii, E. Wang, L. Nayak, V. Babu, Vladimir Zhulanov, Y. Jin, T. Uglov, T. Ferber, R. Kroeger, Bruce Yabsley, M. E. Sevior, I. S. Lee, S. Cunliffe, P. Goldenzweig, J. Libby, D. M. Asner, K. Hayasaka, T. Mori, H. Aihara, M. C. Chang, G. Inguglia, Y. Guan, Tomoyuki Konno, K. Kumara, Y. Seino, M. T. Prim, Takeo Kawasaki, S.-J. Cho, Z. S. Stottler, D. Cinabro, P. Chang, M. Kumar, C. P. Shen, Seok Kim, M. Takizawa, Somnath Choudhury, D. Matvienko, Seokhee Park, John Yelton, Z. Doležal, K. Kim, H. Ono, S. K. Choi, M. Nayak, N. K. Nisar, J. S. Lange, R. Mizuk, T. Pang, S. Patra, Yoshinobu Unno, A. K. Giri, K. Sumisawa, M. Masuda, T. V. Dong, C.-L. Hsu, W. S. Hou, J. Li, C. Sharma, Peter Kodys, W. W. Jacobs, G. Karyan, V. Vorobyev, Y. Choi, V. Popov, Y. Sakai, O. Hartbrich, G. B. Mohanty, K. Lieret, K. K. Joo, N. Dash, E. Solovieva, X. P. Xu, S. Paul, D. Kotchetkov, B. Bhuyan, T. E. Browder, V. Savinov, R. Van Tonder, P. Pakhlov, G. Russo, H. Park, A. Bozek, Z. Natkaniec, D. Červenkov, J. H. Yin, S. Das, C. Kiesling, M. Bračko, A. Sangal, Rocky Bala Garg, M. Merola, K. Senyo, and C. Hadjivasiliou
Subjects: Physics, Direct production, Particle physics, KEKB, 010308 nuclear & particles physics, Branching fraction, 0103 physical sciences, Bound state, 010306 general physics, 01 natural sciences, Spectral line
Abstract: We report the results of a first search for a doubly charged DDK bound state, denoted the R++, in ϒ(1S) and ϒ(2S) inclusive decays and via direct production in e+e- collisions at s=10.520, 10.580, and 10.867 GeV. The search uses data accumulated with the Belle detector at the KEKB asymmetric-energy e+e- collider. No significant signals are observed in the D+Ds∗+ invariant-mass spectra of all studied modes. The 90% credibility level upper limits on their product branching fractions in ϒ(1S) and ϒ(2S) inclusive decays (B(ϒ(1S, 2S)→R+++anything)×B(R++→D+Ds∗+)), the product values of Born cross section and branching fraction in e+e- collisions (σ(e+e-→R+++anything)×B(R++→D+Ds∗+)) at s=10.520, 10.580, and 10.867 GeV under different assumptions of R++ masses varying from 4.13 to 4.17 GeV/c2 and widths varying from 0 to 5 MeV are obtained.
Published: 2020

23. Search for transitions from ϒ(4S) and ϒ(5S) to ηb(1S) and ηb(2S) with emission of an ω meson

Author: K. Miyabayashi, W. B. Yan, Jyoti Prakash Biswal, A. Garmash, P. Goldenzweig, C.-L. Hsu, L. Nayak, Seongbae Yang, S. Pardi, T. Aushev, S. Sandilya, U. Tamponi, H. Nakazawa, Peter Kodys, Vladimir Popov, M. Campajola, W. W. Jacobs, T. Ferber, V. Gaur, R. Mussa, G. Schnell, M. Niiyama, S. Jia, T. Matsuda, Deepak Kumar Sahoo, M. Starič, D. M. Asner, A. B. Kaliyar, P. K. Behera, H. Ono, X. P. Xu, H. Aihara, A. Ishikawa, M. Nakao, T. Iijima, G. Karyan, C. W. Joo, D. Kotchetkov, G. Bonvicini, Motoki Iwasaki, F. Tenchini, C. Hadjivasiliou, J. Schueler, A. Vinokurova, S. Dubey, V. Aulchenko, P. Krokovny, Kohei Ogawa, Bruce Yabsley, S. E. Vahsen, T. J. Moon, A. Natochii, P. Oskin, S. K. Choi, Y. Onuki, P. Križan, R. Mizuk, T. Podobnik, Y. Sakai, K. Inami, S. Ogawa, Y. Iwasaki, F. Di Capua, K. H. Kang, K. Cho, D. Epifanov, Soumya D. Mohanty, E. Won, C. H. Wang, S. Paul, L. Li Gioi, M. Nayak, Y. J. Kwon, K. Kumara, E. Wang, E. Waheed, M. Hernandez Villanueva, V. Bhardwaj, T. K. Pedlar, H. Ye, C. Z. Yuan, E. Prencipe, K. Lieret, C. H. Li, T. Sanuki, S. Wehle, R. Dhamija, N. Rout, Z. S. Stottler, J. Libby, Ya-Qiu Jin, Victoria Zhukova, L. K. Li, D. Liventsev, A. K. Giri, M. Z. Wang, K. Kinoshita, D. Y. Kim, Y. Unno, T. Uglov, A. Chen, E. Solovieva, K. Trabelsi, A. Sangal, J. H. Yin, G. S. Varner, M. Shapkin, C. P. Shen, Z. P. Zhang, S. Cunliffe, Martin Florian Bessner, Y. Seino, M. Masuda, R. Kroeger, K. Chilikin, M. Takizawa, G. B. Mohanty, R. Ayad, M. E. Sevior, M. T. Prim, M. Merola, R. Itoh, H. Miyata, K. Sumisawa, G. De Nardo, M. T. Hedges, A. Rostomyan, K. Tanida, P. Wang, Shoichi Watanuki, K. Gudkova, L. Cao, H. Atmacan, Rahul Kumar, D. Cinabro, R. Pestotnik, John Yelton, Z. Doležal, Andrey Sokolov, B. Golob, T. V. Dong, H. Kichimi, Y. Choi, Z. J. Liptak, T. Hara, L. Santelj, L. E. Piilonen, J. Wiechczynski, N. K. Nisar, T. Bilka, Seokhee Park, H. Hayashii, G. Pakhlova, Yongsun Kim, S. Uno, C. Schwanda, R. Kulasiri, P. Chang, O. Hartbrich, C. H. Kim, H. E. Cho, M. Watanabe, J. C. Dingfelder, J. S. Lange, K. Senyo, T. Pang, J. V. Bennett, T. Mori, Y. Usov, Semen Eidelman, Y. Yusa, G.V. Russo, Somnath Choudhury, W. S. Hou, Felix Metzner, V. Vorobyev, K. K. Joo, B. G. Cheon, K. Belous, S. Korpar, S. C. Lee, J. G. Shiu, S. Nishida, V. Chekelian, R. Van Tonder, R. B. Garg, B. Bhuyan, B. G. Fulsom, T. E. Browder, V. Savinov, P. Pakhlov, Philip Lewis, H. Park, A. Bozek, C. Kiesling, M. Bračko, N. Gabyshev, D. Červenkov, V.N. Zhilich, and D. Ferlewicz
Subjects: Physics, Particle physics, KEKB, Meson, 010308 nuclear & particles physics, law, 0103 physical sciences, 010306 general physics, Collider, 01 natural sciences, Belle experiment, law.invention
Abstract: Using data collected in the Belle experiment at the KEKB asymmetric-energy e+e− collider we search for transitions Υ(4S)→ η$_{b}$(1S)ω, Υ(5S)→η$_{b}$(1S)ω and Υ(5S)→η$_{b}$(2S)ω. No significant signals are observed and we set 90% confidence level upper limits on the corresponding visible cross sections: 0.2 pb, 0.4 pb and 1.9 pb, respectively.
Published: 2020

24. Study of electromagnetic decays of orbitally excited Ξc baryons

Author: X. L. Wang, V. Chekelian, R. Van Tonder, M. Shapkin, J. K. Ahn, P. Pakhlov, K. Chilikin, G. Russo, H. Park, A. Bozek, P. Lewis, M. Uchida, J. Libby, D. M. Asner, C. MacQueen, C.-L. Hsu, B. Bhuyan, T. E. Browder, V. Savinov, K. Hayasaka, V. Bhardwaj, R. Ayad, Seema Bahinipati, Tagir Aushev, Y. Onuki, D. Epifanov, N. K. Nisar, G. S. Varner, J. S. Lange, S. Sandilya, J. B. Singh, E. Won, R. Pestotnik, Peter Kodys, T. J. Moon, W. W. Jacobs, S. K. Choi, T. K. Pedlar, X. P. Xu, D. Kotchetkov, Y. Seino, M. T. Prim, S. Al Said, M. Starič, A. Rostomyan, G. Schnell, T. Iijima, D. Y. Kim, C. W. Joo, S.-J. Cho, K. Kumara, M. Campajola, L. K. Li, P. Wang, B. G. Fulsom, Saraju P. Mohanty, Takeo Kawasaki, V.N. Zhilich, Y. Kato, S. Pardi, C. P. Shen, G. Karyan, G. De Nardo, Seok Kim, M. T. Hedges, A. B. Kaliyar, Seongbae Yang, M. Takizawa, F. Di Capua, W. Sutcliffe, A. Kuzmin, S. E. Vahsen, I. Adachi, Victoria Zhukova, Yongsun Kim, Z. S. Stottler, K. K. Joo, M. Merola, V. Babu, J. Schueler, R. Kulasiri, K. Lalwani, A. Chen, M. Sumihama, John Yelton, Z. Doležal, S. Jia, K. Lieret, Y. Choi, R. Mizuk, C. Schwanda, K. Miyabayashi, Y. Iwasaki, G. Inguglia, Y. J. Kwon, T. Ferber, V. Popov, T. Matsuda, S. Uno, L. Santelj, S. Ogawa, C. Beleño, K. Senyo, G. Bonvicini, M. Hernandez Villanueva, Shih-Chang Lee, E. Nakano, V. Gaur, Y. Sakai, S. Patra, A. Vinokurova, O. Hartbrich, H. Hayashii, E. Waheed, D. Matvienko, N. Rout, Bruce Yabsley, E. Solovieva, H. Ono, W. S. Hou, S. Nishida, G. B. Mohanty, B. H. Kim, P. Krokovny, Rakesh Kumar, Seokhee Park, M. Nayak, A. K. Giri, K. Sumisawa, K. H. Kang, K. Cho, H. Miyata, Prafulla Kumar Behera, W. B. Yan, V. Vorobyev, S.I. Eidelman, M. Z. Wang, K. Kinoshita, M. Masuda, E. Prencipe, T. V. Dong, Y. Unno, J. Bennett, Dipak Kumar Sahoo, Kohei Ogawa, A. Natochii, K. Inami, V.E. Shebalin, M. Iwasaki, B. G. Cheon, R. Itoh, S. Korpar, J. G. Shiu, Phillip Urquijo, Y. B. Li, Jyoti Prakash Biswal, J. F. Strube, E. Wang, Z. P. Zhang, G. Pakhlova, J. T. McNeil, T. Mori, H. Aihara, Y. Usov, M. Mrvar, A. Garmash, T. Sanuki, D. Liventsev, S. Cunliffe, M. C. Chang, F. Tenchini, T. Podobnik, T. Sumiyoshi, Martin Ritter, L. E. Piilonen, P. Oskin, L. Li Gioi, R. Mussa, A. Ishikawa, M. Nakao, P. Križan, Andrey Sokolov, Rocky Bala Garg, C. Hadjivasiliou, Z. Natkaniec, N. Gabyshev, D. Červenkov, J. H. Yin, C. Kiesling, M. Bračko, T. Bilka, M. Watanabe, U. Tamponi, C. H. Wang, S. Paul, H. Ye, Tao Luo, K. Tanida, D. Cinabro, H. Kichimi, P. Chang, Z. J. Liptak, B.A. Shwartz, Vladimir Zhulanov, Y. Jin, T. Uglov, R. Kroeger, M. E. Sevior, P. Goldenzweig, and Somnath Choudhury
Subjects: Physics, Quark, Particle physics, 010308 nuclear & particles physics, 01 natural sciences, Measure (mathematics), law.invention, Charmed baryons, Baryon, KEKB, law, Excited state, 0103 physical sciences, 010306 general physics, Collider
Abstract: Using 980 fb−1 of data collected with the Belle detector operating at the KEKB asymmetric-energy eþe− collider, we report a study of the electromagnetic decays of excited charmed baryons Ξcð2790Þ and Ξcð2815Þ. A clear signal (8.6 standard deviations) is observed for Ξcð2815Þ0 → Ξ0 cγ, and we measure: B½Ξcð2815Þ0 → Ξ0 cγ B½Ξcð2815Þ0 → Ξcð2645Þþπ− → Ξ0 cπþπ− ¼ 0.41 0.05 0.03. We also present evidence (3.8 standard deviations) for the similar decay of the Ξcð2790Þ0 and measure: B½Ξcð2790Þ0 → Ξ0 cγ B½Ξcð2790Þ0 → Ξ0þ c π− → Ξþ c γπ− ¼ 0.13 0.03 0.02. The first quoted uncertainties are statistical and the second systematic. We find no hint of the analogous decays of the Ξcð2815Þþ and Ξcð2790Þþ baryons and set upper limits at the 90% confidence level of: B½Ξcð2815Þþ → Ξþ c γ B½Ξcð2815Þþ → Ξcð2645Þ0πþ → Ξþ c π−πþ < 0.09, and B½Ξcð2790Þþ → Ξþ c γ B½Ξcð2790Þþ → Ξ00 c πþ → Ξ0 cγπþ < 0.06. Approximate values of the partial widths of the decays are extracted, which can be used to discriminate between models of the underlying quark structure of these excited states.
Published: 2020

25. Measurement of the charm-mixing parameter yCP in D0→KS0ω decays at Belle

Author: Kang K.H, Kiyoshi Tanida, Sevior M.E, Shebalin, ervenkov D, Popov, K. Lieret, M. Ritter, Zhilich, Wang M.-Z., L. Cao, Y. Ushiroda, F. Tenchini, J. Bennett, R. Itoh, Semen Eidelman, M. Campajola, Ogawa K, N. Rout, N. Gabyshev, Stottler Z.S, Jyoti Prakash Biswal, Resmi P.K, M. Iwasaki, M. Watanabe, E. Prencipe, Kaliyar A.B, M. Uchida, Li L. K., G. Karyan, Stari M, Y. Unno, Kim S.H, Kim D.Y, Tagir Aushev, A. Vinokurova, Hou W.-S., G. Inguglia, A. Rostomyan, K. Chilikin, Park S.-H., D. Liventsev, Mohanty G.B, Prim M.T, G. Russo, S. Sandilya, R. Pestotnik, M. Nayak, D. Matvienko, H. Atmacan, Dole al Z, Bra ko M, R. Mussa, B. Bhuyan, Nisar N.K, Di Capua F, De Nardo G, M. Merola, Zhukova, D. Ferlewicz, A. Chen, Wang C.H, Browder T.E, Jeon H.B, T. Sanuki, Joo K.K, Samo Korpar, P. Goldenzweig, Jacobs W.W, P. Urquijo, Choi S.-K., D. Kotchetkov, Babu, P. Wang, Zhulanov, Asner D.M, S. Jia, Moon T.J, E. Won, H. Ono, Shiu J.-G, G. Pakhlova, Li Y. B., A. Ishikawa, P. Pakhlov, Kwon Y.-J., D. Epifanov, H. Park, Y. Seino, M. Nakao, C. Kiesling, S. Cunliffe, A. Garmash, Wang X.L, H. Aihara, Cheon B.G, S. Nishida, M. Niiyama, Pavel Krokovny, Di Carlo S, K. Nishimura, U. Tamponi, Yang S.B, T. Ferber, M. Masuda, Z. Natkaniec, Kim C.H, Dong T.V, Al Said S, Bhardwaj, Varvell K.E, K. Trabelsi, Li Gioi L, Y. Usov, A. Sokolov, M. Takizawa, S. Ogawa, O. Grzymkowska, G. Varner, Pedlar T.K, J. Libby, R. Kroeger, R. Ayad, T. Sumiyoshi, Schwartz A.J, T. Kuhr, Fulsom B.G, Y. Sakai, Gaur, Sayantan Choudhury, Prafulla Kumar Behera, Y. Choi, C. Schwanda, G. Bonvicini, D. Cinabro, T. Uglov, Lee S.C, Sudhanwa Patra, K. Senyo, Anjan K. Giri, H. Ye, Y. Iwasaki, Van Tonder R, Kri an P, T. Hara, Zhang Z.P, Y. Jin, A. Vossen, K. Miyabayashi, T. Matsuda, S. Paul, T. Kawasaki, Hsu C.-L., J. Schueler, A. Bozek, Piilonen L.E, N. Dash, E. Solovieva, Cho H.E, K. Hayasaka, S. Uno, S. Pardi, R. Garg, Xun-Jie Xu, B. Golob, Dipak Kumar Sahoo, O. Schneider, Strube J.F, R. Mizuk, Rajesh Kumar, K. Inami, T. Podobnik, S. Bahinipati, Savinov, Iki Adachi, Stani S, G. Schnell, Kim B.H, K. Cho, Fast J.E, and H. Hayashii
Subjects: Physics, Event selection, Particle physics, Annihilation, 010308 nuclear & particles physics, 0103 physical sciences, Charm (quantum number), State (functional analysis), 010306 general physics, 01 natural sciences, Mixing (physics), Energy (signal processing)
Abstract: We report the first measurement of the charm-mixing parameter y$_{CP}$ in D$^{0}$ decays to the CP-odd final state K0¦Sω. The study uses the full Belle e$^{+}$e$^{-}$ annihilation data sample of 976 fb$^{-1}$ taken at or near the Υ(4S) centre-of-mass energy. We find y$_{CP}$=(0.96±0.91±0.62(+0.17)¦(-0.00))%, where the first uncertainty is statistical, the second is systematic due to event selection and background, and the last is due to possible presence of CP-even decays in the data sample.
Published: 2020

26. 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

27. Dalitz analysis of D0→K−π+η decays at Belle

Author: J. E. Fast, A. Garmash, Y. Iwasaki, Y. J. Kwon, T. Bilka, M. Watanabe, X. P. Xu, S. Eidelman, O. Schneider, N. Rout, A. Rabusov, Shih-Chang Lee, P. K. Behera, W. Sutcliffe, S. Jia, H. Aihara, K. Senyo, P. Pakhlov, T. Uglov, V. M. Aulchenko, C. H. Wang, T. Kawasaki, S. Paul, Seongbae Yang, M. Sumihama, Mikihiko Nakao, P. Goldenzweig, Motoki Iwasaki, L. Li Gioi, Y. Q. Chen, H. Park, A. Bozek, M. Shapkin, Vladimir Popov, Sudhanwa Patra, Andrey Sokolov, G. Schnell, J. Libby, J. H. Yin, H. Ye, E.-J. Jang, S. Ogawa, P. Krokovny, B. G. Cheon, M. Uchida, D. Liventsev, V. Babu, V.N. Zhilich, D. Ferlewicz, T. Aushev, K. H. Kang, K. Cho, Y. Sakai, M. Röhrken, K. Chilikin, H. Ono, G. S. Varner, M. Starič, V. V. Zhulanov, E. Waheed, T. Kuhr, K. Lieret, Z. Natkaniec, L. K. Li, D. Epifanov, M. Z. Wang, K. Kinoshita, Soumya D. Mohanty, R. Itoh, T. Ferber, P. Wang, Seema Bahinipati, B. Golob, T. V. Dong, S. Korpar, Y. Choi, K. Miyabayashi, Y. Seino, I. Badhrees, E. Solovieva, G. De Nardo, F. Di Capua, D. Y. Kim, N. Dash, M. Mrvar, V. Bhardwaj, T. K. Pedlar, J. S. Lange, J. G. Shiu, M. T. Prim, C. MacQueen, T. D. Kimmel, Phillip Urquijo, D. M. Asner, R. Mussa, H. B. Jeon, A. Ishikawa, A. J. Schwartz, P. Križan, Y. B. Li, G.V. Russo, D. Cinabro, R. Pestotnik, R. Kroeger, K. Trabelsi, M. E. Sevior, I. S. Lee, Seok Kim, G. Inguglia, M. Campajola, W. S. Hou, O. Hartbrich, C. Z. Yuan, E. Prencipe, Alexei Kuzmin, V. Vorobyev, Somnath Choudhury, Victoria Zhukova, M. Merola, K. Inami, S. Pardi, A. Chen, J. Schueler, E. Won, Y. Yusa, H. Hayashii, H. Atmacan, F. Tenchini, R. Ayad, Z. S. Stottler, T. Podobnik, T. Sumiyoshi, Martin Ritter, K. Tanida, I. Adachi, T. Sanuki, L. E. Piilonen, G. Pakhlova, P. Oskin, R. Kulasiri, D. Matvienko, K. K. Joo, S. Cunliffe, Y. Guan, M. C. Chang, K. Hayasaka, H. E. Cho, R. B. Garg, B. G. Fulsom, T. E. Browder, V. Savinov, S. Nishida, V. Chekelian, J. V. Bennett, Z. P. Zhang, Jyoti Prakash Biswal, R. Mizuk, V. Gaur, Deepak Kumar Sahoo, J. MacNaughton, E. Wang, S. Al Said, A. K. Giri, K. Lalwani, S. Uno, C. Schwanda, M. Masuda, M. Nayak, L. Cao, Ya-Qiu Jin, C.-L. Hsu, Peter Kodys, W. W. Jacobs, Rahul Kumar, V.E. Shebalin, G. Karyan, W. Yan, S. K. Choi, M. Takizawa, Z. Doležal, N. Gabyshev, D. Červenkov, and M. Bračko
Subjects: Physics, Particle physics, KEKB, 010308 nuclear & particles physics, Branching fraction, 0103 physical sciences, Dalitz plot, 010306 general physics, 01 natural sciences
Abstract: We present the results of the first Dalitz plot analysis of the decay D0→K-π+η. The analysis is performed on a data set corresponding to an integrated luminosity of 953 fb-1 collected by the Belle detector at the asymmetric-energy e+e- KEKB collider. The Dalitz plot is well described by a combination of the six resonant decay channels K∗(892)0η, K-a0(980)+, K-a2(1320)+, K∗(1410)0η, K∗(1680)-π+ and K2∗(1980)-π+, together with Kπ and Kη S-wave components. The decays K∗(1680)-→K-η and K2∗(1980)-→K-η are observed for the first time. We measure ratio of the branching fractions, B(D0→K-π+η)B(D0→K-π+)=0.500±0.002(stat)±0.020(syst)±0.003(BPDG). Using the Dalitz fit result, the ratio B(K∗(1680)→Kη)B(K∗(1680)→Kπ) is measured to be 0.11±0.02(stat)-0.04+0.06(syst)±0.04(BPDG); this is much lower than the theoretical expectations (≈1) made under the assumption that K∗(1680) is a pure 13D1 state. The product branching fraction B(D0→[K2∗(1980)-→K-η]π+)=(2.2-1.9+1.7)×10-4 is determined. In addition, the πη′ contribution to the a0(980)± resonance shape is confirmed with 10.1σ statistical significance using the three-channel Flatte model. We also measure B(D0→K∗(892)0η)=(1.41-0.12+0.13)%. This is consistent with, and more precise than, the current world average (1.02±0.30)%, deviates with a significance of more than 3σ from the theoretical predictions of (0.51-0.92)%.
Published: 2020

28. 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

29. 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

30. Study of B→pp¯ππ

Author: F. Di Capua, C. P. Shen, R. Kroeger, U. Tamponi, Seok Kim, M. E. Sevior, I. S. Lee, G. Bonvicini, H. Aihara, E. Nakano, A. Vinokurova, A. M. Bakich, K. Chu, R. Mizuk, C. H. Wang, S. Paul, P. Krokovny, V. Babu, D. M. Asner, T. Aushev, Seema Bahinipati, T. V. Dong, K. Cho, T. Ferber, J. E. Fast, Y. Choi, K. J. Nath, L. Li Gioi, H. Ye, C. Beleño, Tao Luo, L. Santelj, K. Chilikin, K. Kinoshita, J. Libby, K. Tanida, D. Epifanov, B. G. Cheon, Y.-T. Lai, V. Bhardwaj, T. K. Pedlar, N. Gabyshev, D. Červenkov, D. Y. Kim, G. Schnell, M. Nayak, M. Merola, J. V. Bennett, T. Mori, Y. Usov, O. Hartbrich, Y. Seino, T. Iijima, W. Sutcliffe, Ya-Qiu Jin, Y. Sakai, K. Lieret, S. Eidelman, D. Matvienko, J. Wiechczynski, P. Pakhlov, S. K. Choi, T. Uglov, S. Korpar, N. Dash, Y. Onuki, Seokhee Park, R. Pestotnik, M. T. Prim, J. G. Shiu, P. K. Resmi, C.-L. Hsu, Z. P. Zhang, H. Hayashii, K. Senyo, S. Uno, C. Schwanda, Meng Wang, Bo Wang, E. Solovieva, D. Cinabro, R. Mussa, H. B. Jeon, Jyoti Prakash Biswal, T. Kawasaki, H. Park, Phillip Urquijo, V. M. Aulchenko, K. Hayasaka, A. Bozek, L. K. Li, Y. Yusa, A. Bobrov, D. Liventsev, A. Ishikawa, V. Gaur, Z. S. Stottler, A. Frey, Peter Kodys, W. W. Jacobs, E. Prencipe, M. Nakao, Victoria Zhukova, M. Takizawa, P. Chang, D. Joffe, H. E. Cho, G. S. Varner, A. Chen, Seongbae Yang, S. Di Carlo, G. Karyan, R. Itoh, P. Križan, A. Vossen, John Yelton, Z. Doležal, Motoki Iwasaki, A. Rostomyan, P. Wang, S. Nishida, Somnath Choudhury, K. Inami, Vladimir Popov, S. Pardi, Doyen Sahoo, A. K. Giri, Shih-Chang Lee, M. Masuda, G. B. Mohanty, K. K. Joo, X. L. Wang, V. Chekelian, T. Nakano, L. Cao, K. Nishimura, V. V. Zhulanov, B. K. Pal, M. Bračko, R. B. Garg, B. Bhuyan, B. G. Fulsom, J. H. Yin, V. Savinov, B. Golob, N. K. Nisar, J. Schueler, C. W. Park, E. Won, T. Pang, G.V. Russo, W. S. Hou, A. Garmash, P. K. Behera, H. Ono, L. E. Piilonen, G. Pakhlova, P. Oskin, Y. Unno, R. Kulasiri, R. Ayad, Iki Adachi, S. Cunliffe, M. Campajola, V.N. Zhilich, S. Al Said, K. Miyabayashi, I. Badhrees, F. Tenchini, T. Sumiyoshi, Martin Ritter, Y. Iwasaki, Y. J. Kwon, O. Schneider, N. Rout, P. Goldenzweig, S. Sandilya, and M. Starič
Subjects: Physics, Research program, Higher education, 010308 nuclear & particles physics, business.industry, media_common.quotation_subject, Library science, 7. Clean energy, 01 natural sciences, Science research, Excellence, 0103 physical sciences, Christian ministry, Russian federation, 010306 general physics, China, 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; the 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; the National Research Foundation (NRF) of Korea under Grants No. 2015H1A2A1033649, No. 2016R1D1A1B01010135, No. 2016K1A3A7A09005 603, No. 2016R1D1A1B02012900, No. 2018R1A2B3003 643, No. 2018R1A6A1A06024970, and No. 2018R1D1 A1B07047294; the Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of theKorea Institute of Science and Technology Information and KREONET/GLORIAD; the Polish Ministry of Science and Higher Education and the National Science Center; the Grant of the Russian Federation Government, Agreement No. 14.W03.31.0026; 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: 2020

31. Search for B+→μ+νμ and B+→μ+N with inclusive tagging

Author: G. Schnell, T. Iijima, A. K. Giri, S. Eidelman, T. Kuhr, M. Masuda, P. Pakhlov, G. B. Mohanty, J. G. Shiu, H. Ono, Philip Lewis, L. Cao, H. Park, A. Bozek, Peter Kodys, G. De Nardo, G. Karyan, R. Mizuk, R. B. Garg, B. Bhuyan, B. G. Fulsom, T. E. Browder, Bo Wang, Rahul Kumar, C. Beleño, A. Garmash, D. Matvienko, K. Hayasaka, A. Bobrov, B. G. Cheon, V.E. Shebalin, H. E. Cho, Y. Choi, K. J. Nath, T. Hara, L. Santelj, V. Bansal, D. M. Asner, Florian Urs Bernlochner, C. Kiesling, V. Savinov, Jyoti Prakash Biswal, Andrey Sokolov, S. Al Said, J. Haba, M. Niiyama, F. Tenchini, P. Goldenzweig, Seokhee Park, A. B. Kaliyar, Shih-Chang Lee, S. Korpar, M. Bračko, P. K. Behera, S. Nishida, K. Senyo, J. K. Lee, V. Gaur, M. Heck, K. Nishimura, J. Schueler, E. Won, M. Nakao, Y. Unno, V. Babu, T. Aushev, M. Starič, Victoria Zhukova, V. V. Zhulanov, T. Kawasaki, J. MacNaughton, T. Sumiyoshi, L. Li Gioi, Martin Ritter, Jihwa Lee, E. Prencipe, M. Campajola, K. Lalwani, J. F. Strube, M. Uchida, T. Kumita, T. Matsuda, A. Chen, S. Uno, C. Schwanda, H. Atmacan, T. Ferber, S. Ogawa, V. Chekelian, R. Ayad, Felix Metzner, D. Liventsev, M. Merola, H. Hayashii, Z. P. Zhang, S. E. Vahsen, R. Van Tonder, B. K. Pal, Z. Natkaniec, G. S. Varner, L. E. Piilonen, C. H. Kim, B. Shwartz, K. K. Joo, K. Adamczyk, G. Pakhlova, R. Kulasiri, A. Rostomyan, P. Wang, D. Y. Kim, G.V. Russo, H. Ye, Y. Iwasaki, Y. J. Kwon, M. Z. Wang, M. Nayak, K. Kinoshita, Nils Braun, T. Uglov, K. Chilikin, V.N. Zhilich, Kevin Varvell, Sudhanwa Patra, Y. Yusa, Ya-Qiu Jin, A. Vinokurova, O. Schneider, Y. Tao, H. Aihara, Y. Usov, K. Miyabayashi, R. Mussa, P. C. Lu, W. S. Hou, A. Ishikawa, M. Sumihama, Alexei Kuzmin, A. M. Bakich, Motoki Iwasaki, Y. Ushiroda, K. Trabelsi, P. Križan, C. H. Li, I. Adachi, P. Krokovny, Seok Kim, J. E. Fast, M. Rozanska, Doyen Sahoo, D. Kotchetkov, W. Sutcliffe, Y. Onuki, D. Červenkov, K. Cho, S. Cunliffe, Y. Guan, V. M. Aulchenko, R. Pestotnik, D. Epifanov, T. Bilka, J. H. Yin, V. Bhardwaj, T. K. Pedlar, U. Tamponi, S. Jia, O. Grzymkowska, C. H. Wang, K. Inami, S. Paul, N. K. Nisar, Y. Sakai, J. S. Lange, K. Lieret, E. Solovieva, D. Joffe, Seongbae Yang, Frank Simon, Vladimir Popov, D. Cinabro, G. Inguglia, P. Chang, Somnath Choudhury, J. Libby, Y. Seino, M. T. Prim, Shoichi Watanuki, S. Pardi, M. Takizawa, Z. Doležal, K. T. Kim, R. Kroeger, M. E. Sevior, I. S. Lee, Tao Luo, and H. Kichimi
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Rest frame, Type (model theory), Coupling (probability), 01 natural sciences, Helicity, Standard Model, 0103 physical sciences, High Energy Physics::Experiment, B meson, Sensitivity (control systems), 010306 general physics
Abstract: We report the result for a search for the leptonic decay of B$^{+}$ → μ$^{+}$ν$_{μ}$ using the full Belle dataset of 711 fb$^{-1}$ of integrated luminosity at the ϒ(4S) resonance. In the Standard Model leptonic B-meson decays are helicity and Cabibbo-Kobayashi-Maskawa suppressed. To maximize sensitivity an inclusive tagging approach is used to reconstruct the second B meson produced in the collision. The directional information from this second B meson is used to boost the observed μ into the signal B-meson rest frame, in which the μ has a monochromatic momentum spectrum. Though its momentum is smeared by the experimental resolution, this technique improves the analysis sensitivity considerably. Analyzing the μ momentum spectrum in this frame we find B(B$^{+}$ → μ$^{+}$ν$_{μ}$) = 5.3 ± 2.0 ± 0.9) × 10$^{-7}$ with a one-sided significance of 2.8 standard deviations over the background-only hypothesis. This translates to a frequentist upper limit of B(B$^{+}$ → μ$^{+}$ν$_{μ}$) < 8.6 × 10$^{-7}$ at 90% confidence level. The experimental spectrum is then used to search for a massive sterile neutrino, B$^{+}$ → μ$^{+}$N, but no evidence is observed for a sterile neutrino with a mass in a range of 0–1.5 GeV. The determined B$^{+}$ → μ$^{+}$ν$_{μ}$ branching fraction limit is further used to constrain the mass and coupling space of the type II and type III two-Higgs-doublet models.
Published: 2020

32. 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

33. CsI(Tl) Pulse Shape Discrimination with the Belle II Electromagnetic Calorimeter as a Novel Method to Improve Particle Identification at Electron-Positron Colliders

Author: A. Hershenhorn, I. Nakamura, T. Ferber, Elisa Manoni, J. M. Roney, F. Meier, A.L. Sibidanov, Y. Usov, M. Remnev, S. Cunliffe, H. Hayashii, S. Longo, Y. Unno, K. Miyabayashi, Claudia Cecchi, A. Kuzmin, C. Hearty, and Vladimir Zhulanov
Subjects: Nuclear and High Energy Physics, data analysis method, Physics - Instrumentation and Detectors, Photon, crystal [scintillation counter], iodine [cesium], Physics::Instrumentation and Detectors, electromagnetic [calorimeter], Hadron, shape analysis, FOS: Physical sciences, BELLE, Electron, 01 natural sciences, Particle identification, High Energy Physics - Experiment, law.invention, Nuclear physics, High Energy Physics - Experiment (hep-ex), Positron, law, 0103 physical sciences, 010306 general physics, Collider, Instrumentation, Physics, Scintillation, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), Calorimeter, efficiency, GEANT, High Energy Physics::Experiment, particle identification, performance
Abstract: This paper describes the implementation and performance of CsI(Tl) pulse shape discrimination for the Belle II electromagnetic calorimeter, representing the first application of CsI(Tl) pulse shape discrimination for particle identification at an electron–positron collider. The pulse shape characterization algorithms applied by the Belle II calorimeter are described. Control samples of γ , μ + , π ± , K ± and p ∕ p are used to demonstrate the significant insight into the secondary particle composition of calorimeter clusters that is provided by CsI(Tl) pulse shape discrimination. Comparisons with simulation are presented and provide further validation for newly developed CsI(Tl) scintillation response simulation techniques, which when incorporated with GEANT4 simulations allow the particle dependent scintillation response of CsI(Tl) to be modelled. Comparisons between data and simulation also demonstrate that pulse shape discrimination can be a new tool to identify sources of improvement in the simulation of hadronic interactions in materials. The K L 0 efficiency and photon-as-hadron fake-rate of a multivariate classifier that is trained to use pulse shape discrimination is presented and comparisons are made to a shower-shape based approach. CsI(Tl) pulse shape discrimination is shown to reduce the photon-as-hadron fake-rate by over a factor of 3 at photon energies of 0.2 GeV and over a factor 10 at photon energies of 1 GeV.
Published: 2020
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34. Observation of a vector charmoniumlike state in e+e−→Ds+Ds1(2536)−+c.c

Author: D. Cinabro, G. Schnell, T. Iijima, Bumho Kim, Y. Choi, K. J. Nath, P. Chang, L. Santelj, T. Pang, S. Patra, P. Pakhlov, S. K. Choi, H. Hayashii, K. Tanida, A. M. Bakich, Y. Sakai, Rocky Bala Garg, N. Gabyshev, D. Červenkov, Samo Stanič, S. Nishida, Philip Lewis, Dipak Kumar Sahoo, T. Matsuda, S. Uno, A. Garmash, M. Nayak, H. Atmacan, K. Lieret, S. Pardi, W. S. Hou, H. Kichimi, G. Russo, H. Park, M. Takizawa, Victoria Zhukova, C. P. Shen, M. Bračko, A. Bozek, Y. Onuki, R. Mussa, A. Chen, G. Bonvicini, M. Uchida, Z. Doležal, V. Gaur, J. G. Shiu, Y. Iwasaki, A. Ishikawa, L. K. Li, Y. J. Kwon, V. Babu, K. Inami, E. Solovieva, V. Vorobyev, A. Vinokurova, O. Schneider, N. Rout, T. Bilka, Y. B. Li, V.M. Aulchenko, T. Ferber, R. Ayad, M. Watanabe, S. H. Kim, P. Krokovny, M. Z. Wang, K. Kinoshita, Soumen Paul, M. Röhrken, K. Chilikin, J. H. Yin, Vladimir Popov, B.A. Shwartz, G. S. Varner, J. Libby, D. M. Asner, K. Hayasaka, M. Iwasaki, Shih-Chang Lee, K. H. Kang, K. Cho, B. G. Cheon, Z. S. Stottler, B. Bhuyan, T. E. Browder, H. Ye, G. Pakhlova, S. Sandilya, D. Liventsev, Vladimir Zhulanov, C. H. Kim, Y. Jin, R. Itoh, B. Golob, K. Lalwani, R. Pestotnik, R. Kroeger, D. Epifanov, M. E. Sevior, I. S. Lee, P. Goldenzweig, C. Schwanda, A. Bobrov, M. Starič, A. Rostomyan, S. Korpar, Y. Seino, J. S. Lange, Andrey Sokolov, B. G. Fulsom, K. K. Joo, M. T. Prim, L. Li Gioi, F. Di Capua, D. Y. Kim, V. Savinov, T. K. Pedlar, W. Sutcliffe, K. Nishimura, D. Matvienko, S. Jia, R. Kulasiri, Seongbae Yang, James E. Fast, Seokhee Park, E. Won, V.N. Zhilich, C. H. Wang, I. Adachi, K. Miyabayashi, I. Badhrees, X. L. Wang, C. MacQueen, C. H. Li, R. Van Tonder, M. Campajola, G. Inguglia, H. Ono, R. Mizuk, H. Aihara, M. Niiyama, Y. Usov, Jyoti Prakash Biswal, C. Z. Yuan, E. Prencipe, F. Tenchini, T. Sumiyoshi, G. De Nardo, N. K. Nisar, Z. P. Zhang, S. Cunliffe, Yoshinobu Unno, L. E. Piilonen, P. Oskin, A. K. Giri, M. Masuda, T. V. Dong, L. Cao, C.-L. Hsu, K. Trabelsi, Peter Kodys, W. W. Jacobs, S. Di Carlo, G. Karyan, H. Miyata, Prafulla Kumar Behera, S.I. Eidelman, H. E. Cho, M. Merola, K. Senyo, T. Uglov, A. Kuzmin, and S. Ogawa
Subjects: Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, State (functional analysis), 010306 general physics, 01 natural sciences
Abstract: Using a data sample of 921.9 fb-1 collected with the Belle detector, we study the process of e+e-→Ds+Ds1(2536)-+c.c. via initial-state radiation. We report the first observation of a vector charmoniumlike state decaying to Ds+Ds1(2536)-+c.c. with a significance of 5.9σ, including systematic uncertainties. The measured mass and width are (4625.9-6.0+6.2(stat)±0.4(syst)) MeV/c2 and (49.8-11.5+13.9(stat)±4.0(syst)) MeV, respectively. The product of the e+e-→Ds+Ds1(2536)-+c.c. cross section and the branching fraction of Ds1(2536)-→D¯*0K- is measured from the DsD¯s1(2536) threshold to 5.59 GeV.
Published: 2019

35. Measurements of the branching fractions B(B−→Λ¯c−Ξc′0) , B(B−→Λ¯c−Ξc(2645)0) and B(B−→Λ¯c−Ξc(2790)0)

Author: R. Mizuk, C. MacQueen, S. Pardi, S. Cunliffe, Andrey Sokolov, V. Babu, G. Schnell, T. Iijima, K. Nishimura, M. Z. Wang, K. Kinoshita, J. G. Shiu, Y. B. Li, M. Sumihama, T. Kuhr, F. Di Capua, H. Ono, M. Iwasaki, V. V. Zhulanov, J. E. Fast, T. Ferber, M. Campajola, Y. Sakai, B. G. Cheon, K. Lieret, S. Korpar, A. Garmash, S. Nishida, T. K. Pedlar, A. K. Giri, T. Bilka, S. K. Choi, Sudhanwa Patra, Shih-Chang Lee, Samo Stanič, X. L. Wang, L. E. Piilonen, M. Watanabe, M. Masuda, D. M. Asner, G. Pakhlova, P. Oskin, R. Kulasiri, M. Uchida, L. K. Li, Y. Iwasaki, E. Won, R. Mussa, Y. J. Kwon, E. Solovieva, H. Hayashii, M. Röhrken, K. Chilikin, C. H. Kim, H. Atmacan, R. Van Tonder, D. Liventsev, K. Tanida, K. Trabelsi, Z. S. Stottler, J. Libby, O. Schneider, N. Rout, P. K. Behera, A. Ishikawa, T. Matsuda, Y. Unno, B. Shwartz, R. B. Garg, L. Cao, A. Kuzmin, B. G. Fulsom, T. E. Browder, C. P. Shen, K. Lalwani, G. S. Varner, Seok Kim, S. Uno, Seongbae Yang, M. Niiyama, J. H. Yin, C. Schwanda, S. Ogawa, S. Jia, W. Sutcliffe, Y. Onuki, C.-L. Hsu, I. Adachi, R. Pestotnik, H. Kichimi, G. Bonvicini, M. Bračko, Vladimir Popov, A. Vinokurova, R. Itoh, A. Rostomyan, Y. Seino, V.N. Zhilich, B. Golob, C. Z. Yuan, V. M. Aulchenko, C. H. Wang, K. Inami, V. Savinov, Peter Kodys, W. W. Jacobs, N. K. Nisar, F. Tenchini, J. S. Lange, D. Ferlewicz, S. Eidelman, T. Podobnik, T. Sumiyoshi, C. H. Li, P. Goldenzweig, P. Krokovny, D. Matvienko, S. Sandilya, K. K. Joo, M. T. Prim, D. Y. Kim, S. Paul, L. Li Gioi, T. Pang, A. M. Bakich, Yang Li, E. Prencipe, H. Ye, P. Pakhlov, T. V. Dong, Victoria Zhukova, S. Di Carlo, Y. Choi, G.V. Russo, Philip Lewis, T. Uglov, K. H. Kang, K. Cho, M. Starič, Seokhee Park, G. Karyan, M. Nayak, K. J. Nath, I. Badhrees, W. S. Hou, D. Cinabro, R. Kroeger, M. E. Sevior, I. S. Lee, T. Hara, L. Santelj, G. Inguglia, N. Gabyshev, D. Červenkov, M. Takizawa, A. Chen, H. Park, A. Bozek, H. Miyata, M. Merola, Ya-Qiu Jin, John Yelton, P. Chang, Z. Doležal, R. Ayad, G. De Nardo, K. Senyo, K. Hayasaka, A. Bobrov, H. E. Cho, B. Grube, H. Aihara, Jyoti Prakash Biswal, V. Gaur, Deepak Kumar Sahoo, M. Nakao, and Z. P. Zhang
Subjects: Physics, 010308 nuclear & particles physics, Branching fraction, Analytical chemistry, Lambda, Branching (polymer chemistry), 01 natural sciences, Baryon, KEKB, Recoil, 0103 physical sciences, Mass spectrum, 010306 general physics, Bar (unit)
Abstract: Using the data sample of 711 fb-1 of ϒ(4S) on-resonance data taken by the Belle detector at the KEKB asymmetric-energy electron-positron collider, we present the first measurements of branching fractions of the decays B-→Λ¯c-Ξc′0, B-→Λ¯c-Ξc(2645)0, and B-→Λ¯c-Ξc(2790)0. The signal yields for these decays are extracted from the recoil mass spectrum of the system recoiling against Λ¯c- baryons in selected B- candidates. The branching fraction of B-→Λ¯c-Ξc(2790)0 is measured to be (1.1±0.4±0.2)×10-3, where the first uncertainty is statistical and the second is systematic. The 90% credibility level upper limits on B(B-→Λ¯c-Ξc′0) and B(B-→Λ¯c-Ξc(2645)0) are determined to be 6.5×10-4 and 7.9×10-4, respectively.
Published: 2019

36. Measurement of the Michel parameters (η‾, ξκ ) in the radiative leptonic decay of τ

Author: J. E. Fast, D. Dossett, M. Niiyama, L. Pesántez, V. Trusov, Andrey Sokolov, S. Shinomiya, Byeong Rok Ko, M. Feindt, I. Nakamura, V. Babu, Hui Li, Jingxu Wang, T. Aushev, O. Frost, Z. Suzuki, J. Grygier, J. H. Kang, Y. Miyachi, Hikaru Kawai, M. Belhorn, Benjamin Schwenker, T. Zivko, Y. B. Hsiung, K. Neichi, A. Zupanc, C. C. Zhang, E. Nakano, Antonio Limosani, T. Ferber, D. H. Lee, H. Kakuno, H. Shibuya, M. Watanabe, L. S. Peak, C. Niebuhr, O. Nitoh, K. Nishimura, Chawon Park, A. Loos, J. C. Dingfelder, M. V. Purohit, P. Goldenzweig, Rupert Leitner, V. V. Zhulanov, J. Yamaoka, Xiuwan Li, K. Senyo, S. Eidelman, L. Shang, Ihn Sik Seong, S. Sandilya, K. Ueno, M. Heck, M. J. Kim, T. Kawasaki, P. Pakhlov, W. Ostrowicz, U. Tamponi, Anton Poluektov, T. Schlüter, S. Sugihara, M. Starič, Y. Igarashi, M. Masuda, Dipanwita Dutta, A. Sugiyama, T. Kumita, M. Uchida, X. H. He, D. Cinabro, Philip Lewis, G. B. Mohanty, C. H. Li, Massimo Berger, B. H. Kim, Y. Yook, H. Yamamoto, L. K. Li, V.N. Zhilich, Y. Kato, V. Chobanova, Y. Kuroki, Satoshi Tanaka, D. Liventsev, Y. Arita, I. Jaegle, K. Miyabayashi, M. Lubej, G. Inguglia, I. Badhrees, Y. Koga, E. Nedelkovska, F. Breibeck, H. Park, J. Stypula, C. Kiesling, E. J. White, A. Bozek, P. Chang, G. S. Varner, Y.-T. Lai, K. Suzuki, P. Schonmeier, M. Iwabuchi, R. Mussa, H. B. Jeon, O. Grzymkowska, C. H. Wang, M. Grosse Perdekamp, R. Itoh, Jung-Hyun Kim, S. Wehle, T. Keck, S. Paul, L. Li Gioi, Y. Yamashita, C. Z. Yuan, Yukinori Sato, J. G. Shiu, M. Nayak, T. Bloomfield, A. Ishikawa, A. Drutskoy, S. E. Vahsen, A. Bay, C.-L. Hsu, T. Saito, S. Rummel, T. Matsuda, Yu Nakahama, M. Tanaka, T. Peng, G. Schnell, A. Rostomyan, Tsukasa Aso, P. Wang, H. Miyata, Y. Hoshi, M. Barrett, B. Bhuyan, Y.L. Han, A. Frey, H. Ye, P. Križan, T. Iijima, Jun Sasaki, H. G. Moser, M. Bračko, Y. Iwasaki, B. G. Fulsom, Peter Kodys, W. W. Jacobs, T. E. Browder, Y. J. Kwon, K. Nakamura, Ya-Qiu Jin, P. Hamer, K. Hayasaka, A. Bobrov, H. Hayashii, Hyunyong Kim, O. Schneider, K. Prasanth, M. Imamura, T. Nagamine, K. Trabelsi, P. Katrenko, T. Müller, J. Klucar, K. T. Kim, C. P. Shen, S. Di Carlo, Seok Kim, S. Okuno, B. Shwartz, Jamal Rorie, D. Getzkow, C. B. Van Hulse, I. Adachi, A. Ogawa, K. Negishi, T. Kuhr, D. Z. Besson, E. Ribežl, D. Santel, Phillip Urquijo, N. Sasao, Victoria Zhukova, V. Savinov, M. Danilov, H. Nakayama, D. Y. Kim, R. Gillard, R. Mizuk, Eberhard Widmann, J. F. Strube, Matthew Jones, M. Z. Wang, K. Kinoshita, M. Yamauchi, G. Bonvicini, Y. B. Li, Y. Teramoto, I. Tikhomirov, D. Mohapatra, J. B. Singh, A. Chen, K. Hara, S. K. Choi, Sanmay Ganguly, T. Uchida, Y. Ban, N. Zwahlen, Bruce Yabsley, L. Zhao, M. Heider, M. Rozanska, D. Kotchetkov, Y. Yusa, A. Vinokurova, S. Dubey, Rahul Kumar, J. Libby, R. Louvot, Y. Chao, G. N. Taylor, R. Glattauer, V.E. Shebalin, J. Haba, W. Bartel, S. Nishida, S. Al Said, K. Hoshina, Y. Seino, Y. Onuki, K. Vervink, Z. Drásal, Marko Petrič, M. T. Prim, K. Itagaki, Z. Q. Liu, C. Bookwalter, B. G. Cheon, H. J. Hyun, S. Uozumi, P. Smerkol, Tariq Aziz, X. L. Wang, D. Heffernan, T. Morii, C. Boulahouache, J. Hasenbusch, V. Chekelian, J. Li, V. M. Aulchenko, H. Guo, T.-A. Shibata, T. Horiguchi, Y. Ono, S. Koblitz, Seema Bahinipati, Y. Choi, H. Takeichi, K. J. Nath, S. Uno, C. Schwanda, P. Krokovny, M. T. Hedges, Samo Stanič, L.M. Zhang, E. Kurihara, A.E. Bondar, P.A. Lukin, T. Nakano, K. Dutta, A. Garmash, Daniel Greenwald, M. Takizawa, B. Reisert, Y. Sakai, J. Rauch, B. K. Pal, E. L. Barberio, M. Shapkin, Noritaka Shimizu, T. Hara, L. Santelj, J. Dalseno, Robin Wedd, K. M. Williams, V. Bansal, K. Belous, A. M. Bakich, S. Korpar, Jolanta Brodzicka, John Yelton, T. Ohshima, Z. Doležal, K. Chilikin, Y. J. Kim, N. Dash, S. Iwata, H. Ozaki, H. Nakano, C. Ng, K. H. Kang, K. Cho, K. Inami, M. Sumihama, A. Heller, M. D. Peters, Motoki Iwasaki, Y. Ushiroda, N. Taniguchi, Y. M. Goh, S. H. Lee, K. Prothmann, R. Pestotnik, N. Gabyshev, D. Červenkov, A. Abdesselam, M. Steder, M. E. Sevior, I. S. Lee, D. Matvienko, Y. Miyazaki, R. Sinha, P. K. Behera, Yasushi Nagasaka, B. Kronenbitter, Sumio Yamada, E. Kato, M. Leitgab, Tao Luo, K. Tanida, F. Tenchini, T. Sumiyoshi, A. Bala, D. Epifanov, Soumya D. Mohanty, C. Pulvermacher, Martin Ritter, Dmytro Levit, Z. Natkaniec, S. L. Blyth, T. Sanuki, Shigeki Hirose, K. K. Joo, Hirokazu Miyake, R. Seidl, Y. Guan, E. Solovieva, Norihito Muramatsu, M. Huschle, K. Sakai, Y. Watanabe, S. K. Kim, A.L. Sibidanov, H. Kichimi, M. C. Chang, K. S. Park, V. Bhardwaj, T. K. Pedlar, T. Tsuboyama, H. Palka, L. E. Piilonen, G. Pakhlova, J. Wiechczynski, R. Kulasiri, S. U. Kataoka, S. Yashchenko, A. Moll, S. L. Olsen, D. Joffe, T. Julius, Po-Hsun Chen, R. Chistov, A. Vossen, O. Seon, Frank Simon, D. Semmler, Y. Unno, K. F. Chen, R. Ayad, T. Nozaki, S. Uehara, M. N. Wagner, Peter Kvasnicka, A. B. Kaliyar, Sunmin Ryu, C. W. Park, E. Won, C. Oswald, H. Atmacan, P. Vanhoefer, E. Panzenböck, B. Golob, M. Schram, N. K. Nisar, H. K. Moon, J. S. Lange, M. Ziegler, K. Adamczyk, Y. Soloviev, W. S. Hou, K. Arinstein, Y. Mikami, Alexei Kuzmin, V. Vorobyev, Nagao Kobayashi, Y. F. Liu, C. Kleinwort, Z. P. Zhang, H. Sahoo, Tara Nanut, T. Uglov, Yoji Hasegawa, S. Y. Suzuki, Richard T. Kouzes, K. Sumisawa, D. M. Asner, S. Himori, Kevin Varvell, A. Matyja, Jason Crnkovic, T. Mori, H. Aihara, Y. Usov, Jyoti Prakash Biswal, C. Liu, H. Nakazawa, A. J. Schwartz, H. Farhat, J. B. Kim, T. Higuchi, S. Ogawa, V. Gaur, Y. S. Sohn, Ferdinando Giordano, M. Nakao, E. Waheed, S. McOnie, J. MacNaughton, and P. Kapusta
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Maximum likelihood, Electron–positron annihilation, 01 natural sciences, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, Radiative transfer, Michel parameters, Statistical analysis, 010306 general physics, Collider, Lepton
Abstract: We present the first measurement of the Michel parameters η ‾ and ξκ in the radiative leptonic decay of the τ lepton using 703 fb-1 of data collected with the Belle detector at the KEKB e + e − collider. The Michel parameters are measured by an unbinned maximum likelihood fit to the kinematic information of e + e − → τ + τ − → ( π + π 0 ν ‾ ) ( l − ν ν ‾ γ ) ( l = e or μ ) . The preliminary values of the measured Michel parameters are η ‾ = − 2.0 ± 1.5 ± 0.8 and ξ κ = 0.6 ± 0.4 ± 0.2 , where the first error is statistical and the second is systematic.
Published: 2017

37. Azimuthal asymmetries of back-to-back π±−(π0, η, π±) pairs in e+e− annihilation

Author: P. Pakhlov, P. Goldenzweig, Z. P. Zhang, Jyoti Prakash Biswal, V. Gaur, Deepak Kumar Sahoo, M. Nakao, T. Bilka, M. Starič, M. Watanabe, L. Li Gioi, S. Nishida, A. Garmash, H. Ye, V. Chekelian, Y. J. Kwon, V. Bhardwaj, T. K. Pedlar, S. Pardi, R. Van Tonder, B. K. Pal, O. Schneider, L. E. Piilonen, V.N. Zhilich, R. Mizuk, J. V. Bennett, H. Aihara, Y. Sakai, M. Uchida, W. Ostrowicz, B. G. Fulsom, B. G. Cheon, G. Pakhlova, T. Matsuda, S. Jia, V. Savinov, K. Lieret, D. Liventsev, H. Miyata, G. Schnell, Bo Wang, H. Ono, C. H. Wang, S. Paul, M. Merola, G. S. Varner, K. Miyabayashi, I. Badhrees, R. Itoh, P. Krokovny, K. Hayasaka, A. Bobrov, D. Y. Kim, P. Wang, D. Cinabro, D. M. Asner, K. H. Kang, K. Cho, S. Korpar, H. E. Cho, C. MacQueen, S. C. Lee, Motoki Iwasaki, Peter Kodys, W. W. Jacobs, E. Solovieva, Ya-Qiu Jin, Seok Kim, R. Seidl, Hui Li, J. Schueler, Z. Natkaniec, S. Di Carlo, J. G. Shiu, V. Babu, S. Cunliffe, Megumi Naruki, R. Kroeger, Somnath Choudhury, E. Won, T. Aushev, J. Libby, G. Karyan, K. Inami, K. Senyo, D. Kotchetkov, M. Campajola, R. Mussa, A. K. Giri, T. Ferber, V. M. Aulchenko, E.-J. Jang, Y. Seino, A. Ishikawa, Y. B. Li, M. Masuda, M. T. Prim, M. Z. Wang, G.V. Russo, Z. S. Stottler, P. Križan, L. Cao, F. Di Capua, F. Tenchini, Seongbae Yang, Tao Luo, K. Tanida, K. Huang, T. Uglov, A. Vossen, Frank Simon, Vladimir Popov, H. Hayashii, S. Uno, C. Schwanda, V. V. Zhulanov, T. Sanuki, Semen Eidelman, Victoria Zhukova, A. M. Bakich, A. Chen, D. Červenkov, E. Prencipe, Sudhanwa Patra, T. V. Dong, Y. Choi, K. J. Nath, L. Santelj, O. Hartbrich, M. Bračko, T. Nakano, M. Takizawa, and R. Pestotnik
Subjects: Physics, Quark, Particle physics, Annihilation, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Thrust, 01 natural sciences, Belle experiment, Pion, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: This work reports the first observation of azimuthal asymmetries around the thrust axis in e+e- annihilation of pairs of back-to-back charged pions in one hemisphere, and π0 and η mesons in the opposite hemisphere. These results are complemented by a new analysis of pairs of back-to-back charged pions. The π0 and η asymmetries rise with the relative momentum z of the detected hadrons as well as with the transverse momentum with respect to the thrust axis. These asymmetries are sensitive to the Collins fragmentation function H1⊥ and provide complementary information to previous measurements with charged pions and kaons in the final state. In particular, the η final states will provide additional information on the flavor structure of H1⊥. This is the first measurement of the explicit transverse-momentum dependence of the Collins fragmentation function from Belle data. It uses a dataset of 980.4 fb-1 collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV.
Published: 2019

38. First measurements of absolute branching fractions of the Ξc+ baryon at Belle

Author: P. Goldenzweig, S. Pardi, M. Uchida, L. K. Li, D. Liventsev, D. M. Asner, J. F. Strube, S. Nishida, Jyoti Prakash Biswal, Sudhanwa Patra, M. Starič, A. B. Kaliyar, M. Bračko, Z. S. Stottler, G. S. Varner, J. Schueler, I. Adachi, V. Chekelian, A. M. Bakich, L. Li Gioi, E. Won, N. Gabyshev, D. Červenkov, M. Salehi, Y. Onuki, A. Rostomyan, P. Wang, J. K. Lee, V. Gaur, R. Van Tonder, B. K. Pal, V.E. Shebalin, D. Epifanov, L. E. Piilonen, H. Atmacan, Deepak Kumar Sahoo, V.N. Zhilich, R. Mizuk, R. Mussa, Y. Kato, P. C. Lu, C. P. Shen, M. Nakao, Seok Kim, R. B. Garg, J. G. Shiu, G. Pakhlova, B. Bhuyan, B. G. Fulsom, S. E. Vahsen, J. Libby, J. MacNaughton, T. E. Browder, V. Babu, D. Matvienko, R. Kulasiri, G.V. Russo, V. Bhardwaj, T. K. Pedlar, H. Ye, T. Aushev, C. Beleño, W. S. Hou, T. Ferber, T. Uglov, V. Savinov, Y. B. Li, M. Nayak, Y. Choi, K. J. Nath, Seokhee Park, R. Ayad, K. Inami, T. Hara, Ya-Qiu Jin, M. Sumihama, Motoki Iwasaki, Y. Ushiroda, S. Eidelman, Z. P. Zhang, A. Ishikawa, K. Miyabayashi, L. Santelj, K. Senyo, S. Al Said, Y. Seino, P. Pakhlov, M. Niiyama, Y. Iwasaki, Y. J. Kwon, T. Matsuda, J. H. Yin, T. Kawasaki, M. Z. Wang, K. Kinoshita, Shoichi Watanuki, K. Tanida, U. Tamponi, O. Schneider, A. K. Giri, H. Park, A. Bozek, S. Cunliffe, Victoria Zhukova, B. G. Cheon, N. K. Nisar, A. Vinokurova, K. Lalwani, S. Uno, C. Schwanda, D. Cinabro, S. Jia, J. S. Lange, Shih-Chang Lee, A. Kuzmin, M. Masuda, G. B. Mohanty, H. Kichimi, P. Krokovny, Andrey Sokolov, H. Aihara, A. Chen, S. Ogawa, J. Haba, O. Grzymkowska, G. Inguglia, C. H. Wang, K. Cho, H. Ono, S. Paul, B. Shwartz, J. E. Fast, L. Cao, H. Miyata, S. Korpar, D. Dossett, J. K. Ahn, K. K. Joo, F. Tenchini, K. Chilikin, H. Hayashii, Hyunyong Kim, A. J. Schwartz, T. Sumiyoshi, Bo Wang, K. Nishimura, C. H. Kim, R. Kroeger, M. E. Sevior, I. S. Lee, Martin Ritter, T. Bilka, M. Campajola, T. Sanuki, Y. Ban, K. Hayasaka, A. Bobrov, Y. Yusa, A. Garmash, H. E. Cho, Peter Kodys, W. W. Jacobs, R. Pestotnik, B. Grube, Somnath Choudhury, Toru Iijima, V. Bansal, V. V. Zhulanov, S. Di Carlo, G. Karyan, T. J. Moon, Y. Unno, Jihwa Lee, P. K. Behera, Y. Sakai, M. Merola, K. T. Kim, K. Lieret, D. Y. Kim, G. Schnell, T. Kuhr, C. H. Li, E. Solovieva, M. Takizawa, D. Joffe, Seongbae Yang, John Yelton, Z. Doležal, Frank Simon, Vladimir Popov, D. Kotchetkov, P. Križan, Massimo Berger, C. Z. Yuan, and E. Prencipe
Subjects: Physics, Baryon, Particle physics, KEKB, 010308 nuclear & particles physics, Branching fraction, Product (mathematics), Electron–positron annihilation, 0103 physical sciences, 010306 general physics, Lambda, 01 natural sciences, Bar (unit)
Abstract: We present the first measurements of the absolute branching fractions of $\Xi_c^+$ decays into $\Xi^- \pi^+ \pi^+$ and $p K^- \pi^+$ final states. Our analysis is based on a data set of $(772\pm 11)\times 10^{6}$ $B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB $e^+e^-$ collider. We measure the absolute branching fraction of $\bar{B}^{0} \to \bar{\Lambda}_{c}^{-} \Xi_{c}^{+}$ with the $\Xi_c^+$ recoiling against $\bar{\Lambda}_c^-$ in $\bar{B}^0$ decays resulting in ${\cal B}(\bar{B}^{0} \to \bar{\Lambda}_{c}^{-} \Xi_{c}^{+}) = [1.16 \pm 0.42(\rm stat.) \pm 0.15(\rm syst.)] \times 10^{-3}$. We then measure the product branching fractions ${\cal B}(\bar{B}^{0} \to \bar{\Lambda}_c^- \Xi_c^+){\cal B}(\Xi_c^+ \to \Xi^- \pi^+ \pi^+)$ and ${\cal B}(\bar{B}^{0} \to \bar{\Lambda}_c^- \Xi_c^+){\cal B}(\Xi_c^+ \to p K^- \pi^+)$. Dividing these product branching fractions by $\bar{B}^{0} \to \bar{\Lambda}_{c}^{-} \Xi_{c}^{+}$ yields: ${\cal B}(\Xi_c^+ \to \Xi^- \pi^+ \pi^+) = [2.86 \pm 1.21(\rm stat.) \pm 0.38(\rm syst.)]\%$ and ${\cal B}(\Xi_c^+ \to p K^- \pi^+)=[0.45 \pm 0.21(\rm stat.) \pm 0.07(\rm syst.)]\%$. Our result for ${\cal B}(\Xi_c^+ \to \Xi^- \pi^+ \pi^+)$ can be combined with $\Xi_c^+$ branching fractions measured relative to $\Xi_c^+ \to \Xi^- \pi^+ \pi^+$ to set the absolute scale for many $\Xi_c^+$ branching fractions.
Published: 2019

39. Search for B0→X(3872)γ

Author: A. Garmash, P. K. Behera, P. C. Chou, K. K. Joo, L. E. Piilonen, G. Pakhlova, R. Kulasiri, M. Sumihama, Motoki Iwasaki, Y. Ushiroda, H. Hayashii, Y. Sakai, S. Eidelman, K. Lieret, Jihwa Lee, P. Pakhlov, S. Al Said, M. Merola, G. Schnell, T. Iijima, E. Solovieva, S. Pardi, S. E. Vahsen, D. Joffe, H. Park, A. Bozek, Y. Yusa, J. V. Bennett, Y. Tao, T. Mori, H. Aihara, H. Miyata, M. Uchida, Seongbae Yang, A. Vossen, Kohei Ogawa, O. Seon, T. Matsuda, Bo Wang, S. Uno, C. Schwanda, Vladimir Popov, R. Mussa, V. Babu, B. G. Cheon, I. Adachi, Y. Iwasaki, Y. J. Kwon, G.V. Russo, Z. P. Zhang, T. Aushev, K. Inami, A. Ishikawa, K. Hayasaka, A. Bobrov, M. Salehi, R. B. Garg, T. V. Dong, Y. Choi, K. J. Nath, D. Kotchetkov, T. Ferber, D. Liventsev, O. Schneider, L. Santelj, T. E. Browder, C. H. Li, P. Križan, B. G. Fulsom, W. S. Hou, Y.-T. Lai, Z. S. Stottler, H. E. Cho, P. Krokovny, Jyoti Prakash Biswal, V. Savinov, O. Hartbrich, J. Libby, G. S. Varner, J. Haba, K. Cho, Takuro Sanuki, M. Nayak, M. Niiyama, J. K. Lee, V. Gaur, D. Epifanov, R. Itoh, R. Ayad, P. Goldenzweig, S. Sandilya, S. Korpar, A. Rostomyan, P. Wang, S. Nishida, Y. Seino, Seok Kim, M. Starič, N. Dash, J. MacNaughton, Ya-Qiu Jin, Shoichi Watanuki, T. Kumita, T. K. Pedlar, J. G. Shiu, D. Cinabro, H. Ono, Phillip Urquijo, V.N. Zhilich, Y. Kato, G. Inguglia, V. Chekelian, A. Kuzmin, C.-L. Hsu, Y. B. Li, P. Chang, Rahul Kumar, K. Nishimura, V.E. Shebalin, V. V. Zhulanov, S. Ogawa, Y. Unno, R. Van Tonder, K. Miyabayashi, I. Badhrees, B. K. Pal, Somnath Choudhury, K. Senyo, Peter Kodys, E. Waheed, W. W. Jacobs, T. Kawasaki, D. Y. Kim, B. Bhuyan, S. Di Carlo, R. Mizuk, J. E. Fast, T. Uglov, M. Campajola, M. Z. Wang, K. Kinoshita, T. Bilka, M. Watanabe, J. H. Yin, D. M. Asner, F. Tenchini, A. K. Giri, S. Jia, C. Kiesling, T. Sumiyoshi, M. Masuda, O. Grzymkowska, C. H. Wang, S. Paul, L. Li Gioi, Martin Ritter, M. Bračko, Tao Luo, K. Tanida, J. S. Lange, H. Ye, L. Cao, A. M. Bakich, S. Cunliffe, A. B. Kaliyar, N. Gabyshev, D. Červenkov, J. Schueler, E. Won, J. F. Strube, H. Kichimi, Gagan Bihari Mohanty, K. Chilikin, H. Atmacan, J. B. Singh, S. K. Choi, Sudhanwa Patra, M. Takizawa, John Yelton, Z. Doležal, R. Pestotnik, W. Sutcliffe, Y. Onuki, Massimo Berger, V. M. Aulchenko, C. Z. Yuan, R. Kroeger, M. E. Sevior, E. Prencipe, Shih-Chang Lee, B. Shwartz, Victoria Zhukova, and A. Chen
Subjects: Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Electron–positron annihilation, Resonance, 01 natural sciences, Luminosity, law.invention, KEKB, law, 0103 physical sciences, 010306 general physics, Collider, Energy (signal processing), X(3872)
Abstract: We report the results of a search for the decay $B^0 \to X(3872)(\to J/\psi \pi^+ \pi^-) \gamma$. The analysis is performed on a data sample corresponding to an integrated luminosity of $711\,{\rm fb}^{-1}$ and containing $772 \times 10^6 B\bar{B}$ pairs, collected with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider running at the $\Upsilon(4S)$ resonance energy. We find no evidence for a signal and place an upper limit of $\mathcal{B}(B^0 \to X(3872)\gamma)\times \mathcal{B}(X(3872) \to J/\psi \pi^+ \pi^-) < 5.1 \times 10^{-7}$ at 90% confidence level.
Published: 2019

40. 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

41. 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

42. Search for X(3872) and X(3915) decay into χc1π0 in B decays at Belle

Author: M. Z. Wang, K. Kinoshita, T. Matsuda, G. Bonvicini, D. M. Asner, P. K. Resmi, A. Garmash, C.-L. Hsu, Daniel Greenwald, P. Krokovny, V. Bansal, P. Goldenzweig, S. Sandilya, J. Libby, K. Cho, Z. P. Zhang, J. E. Fast, Peter Kodys, W. W. Jacobs, M. Starič, D. Cinabro, P. Chang, Somnath Choudhury, M. Nayak, P. K. Behera, S. Di Carlo, H. Ono, T. Bilka, Ya-Qiu Jin, A. B. Kaliyar, Y. Seino, D. Epifanov, Shoichi Watanuki, S. Pardi, Jyoti Prakash Biswal, G. Karyan, Y. Sakai, D. Y. Kim, M. Watanabe, J. K. Lee, V. Gaur, Y. Iwasaki, B. G. Cheon, Y. J. Kwon, R. Kroeger, M. E. Sevior, I. S. Lee, V. Bhardwaj, T. K. Pedlar, A. K. Giri, L. Li Gioi, D. Matvienko, M. Nakao, O. Schneider, M. Uchida, T. Uglov, L. K. Li, S. Nishida, C. MacQueen, M. Masuda, E. Won, H. Ye, S. Cunliffe, Seokhee Park, G. Schnell, T. Iijima, Sudhanwa Patra, D. Liventsev, J. MacNaughton, H. Hayashii, C. H. Kim, J. Haba, K. Lalwani, S. Uno, C. Schwanda, Seema Bahinipati, G. B. Mohanty, S. Korpar, R. Mussa, T. V. Dong, X. L. Wang, V. Chekelian, G. S. Varner, Jihwa Lee, L. Cao, Y. Choi, K. J. Nath, R. Mizuk, T. Kuhr, C. Kiesling, P. C. Lu, E. Solovieva, S. Ogawa, T. Hara, L. Santelj, U. Tamponi, A. Ishikawa, M. Merola, C. Beleño, T. Mori, H. Aihara, K. Tanida, R. Itoh, R. Van Tonder, M. Bračko, Rahul Kumar, B. K. Pal, S. K. Choi, Z. S. Stottler, F. Tenchini, A. Rostomyan, P. Wang, Shih-Chang Lee, G.V. Russo, J. G. Shiu, R. B. Garg, B. Bhuyan, R. Ayad, S. Jia, Victoria Zhukova, P. Križan, B. G. Fulsom, T. E. Browder, T. Sumiyoshi, Jia-ju Zhang, A. Chen, N. Gabyshev, D. Červenkov, K. Inami, W. S. Hou, Phillip Urquijo, Martin Ritter, O. Grzymkowska, C. H. Wang, S. Uehara, K. Chilikin, S. Paul, T. Sanuki, Massimo Berger, V. Savinov, Y. B. Li, L. E. Piilonen, Andrey Sokolov, A.E. Bondar, G. Pakhlova, R. Kulasiri, R. Pestotnik, D. Kotchetkov, E. Prencipe, S. Eidelman, K. Senyo, M. Takizawa, P. Pakhlov, M. Campajola, K. Nishimura, V. V. Zhulanov, John Yelton, Z. Doležal, T. Kawasaki, B. Shwartz, I. Adachi, H. Park, A. Bozek, T. Julius, J. H. Yin, M. Salehi, W. Sutcliffe, D. Joffe, Seongbae Yang, Y. Onuki, N. K. Nisar, J. S. Lange, K. K. Joo, O. Seon, Frank Simon, Vladimir Popov, M. Sumihama, Motoki Iwasaki, V.N. Zhilich, Y. Kato, K. Miyabayashi, I. Badhrees, K. Trabelsi, C. P. Shen, Seok Kim, V. Babu, T. Aushev, T. Ferber, M. Niiyama, Bo Wang, K. Hayasaka, A. Bobrov, and H. E. Cho
Subjects: Physics, KEKB, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, Pi, Resonance, 010306 general physics, 01 natural sciences, X(3872)
Abstract: We report a search for X(3872) and X(3915) in B+→χc1π0K+ decays. We set an upper limit of B(B+→X(3872)K+)×B(X(3872)→χc1π0)
Published: 2019

43. Evidence for the decay B0→pp¯π0

Author: L. E. Piilonen, K. Nishimura, G. Pakhlova, H. Miyata, R. Kulasiri, Bo Wang, D. Joffe, Seongbae Yang, K. Hayasaka, A. Bobrov, C.-L. Hsu, Peter Kodys, W. W. Jacobs, S. Di Carlo, G. Karyan, K. T. Kim, Frank Simon, P. C. Lu, R. Mizuk, C. Beleño, K. Adamczyk, Vladimir Popov, G.V. Russo, S. K. Choi, A. Ishikawa, W. S. Hou, A. K. Giri, M. Masuda, G. B. Mohanty, L. Cao, C. P. Shen, P. Križan, Y. Sakai, Seok Kim, R. B. Garg, B. Bhuyan, I. Adachi, H. Aihara, K. Senyo, V. Babu, B. G. Fulsom, M. Salehi, T. Aushev, Jyoti Prakash Biswal, M. Takizawa, A. B. Kaliyar, T. E. Browder, Y. Iwasaki, Y. J. Kwon, M. Uchida, John Yelton, L. K. Li, M. Iwasaki, Z. Doležal, J. Schueler, Z. S. Stottler, G. Schnell, T. Iijima, T. Ferber, E. Won, D. Y. Kim, O. Schneider, D. Liventsev, B. G. Cheon, K. Inami, J. F. Strube, V. Gaur, V. Savinov, E. Solovieva, J. Libby, F. Tenchini, M. Nakao, H. Atmacan, G. S. Varner, M. Z. Wang, J. MacNaughton, Jihwa Lee, H. Ono, K. Kinoshita, S. Ogawa, U. Tamponi, R. Itoh, J. Haba, T. Sumiyoshi, Sudhanwa Patra, S. Nishida, Shih-Chang Lee, D. Kotchetkov, A. Rostomyan, Jia-ju Zhang, P. Wang, P. Goldenzweig, S. Korpar, Z. P. Zhang, V. Chekelian, S. Sandilya, Y. Seino, M. Merola, T. Sanuki, Massimo Berger, R. Van Tonder, B. K. Pal, N. K. Nisar, Shoichi Watanuki, M. Starič, S. Eidelman, S. Pardi, J. G. Shiu, R. Ayad, P. Pakhlov, E. Prencipe, S. Jia, S. Uno, C. Schwanda, S. Cunliffe, H. Hayashii, C. Kiesling, Phillip Urquijo, Y. Guan, C. H. Kim, D. M. Asner, A. Bozek, Y. B. Li, C. MacQueen, D. Matvienko, R. Kroeger, M. E. Sevior, A. J. Schwartz, M. Bračko, C. H. Wang, Seokhee Park, Tao Luo, K. Tanida, S. Paul, L. Li Gioi, M. Campajola, T. Uglov, V.N. Zhilich, D. Cinabro, H. Kichimi, H. Ye, K. Miyabayashi, I. Badhrees, M. Nayak, N. Gabyshev, D. Červenkov, W. Sutcliffe, Y. Onuki, Ya-Qiu Jin, J. E. Fast, V. M. Aulchenko, D. Dossett, T. Matsuda, A. Garmash, T. Bilka, M. Watanabe, V. Bansal, A. Vinokurova, P. K. Behera, P. Krokovny, K. Cho, D. Epifanov, V. Bhardwaj, T. K. Pedlar, Victoria Zhukova, A. Chen, K. Chilikin, R. Pestotnik, Y. Yusa, K. K. Joo, T. V. Dong, Y. Choi, K. J. Nath, T. Hara, and Andrey Sokolov
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Resonance, 01 natural sciences, Belle experiment, Luminosity, Baryon, KEKB, 0103 physical sciences, 010306 general physics, Bar (unit)
Abstract: We report a search for the charmless baryonic decay $B^0\to p\bar{p}\pi^0$ with a data sample corresponding to an integrated luminosity of 711~$\rm fb^{-1}$ containing $(772\pm 10)\times 10^6$ $B^0\bar{B}^0$ pairs. The data was collected by the Belle experiment running on the $\Upsilon(4S)$ resonance at the KEKB $e^+e^-$ collider. We measure a branching fraction $\mathcal{B}(B^0\to p\bar{p}\pi^0)= (5.0\pm1.8\pm0.6 )\times 10^{-7}$, where the first uncertainty is statistical and the second is systematic. The signal has a significance of 3.1 standard deviations and constitutes the first evidence for this decay mode. We also search for the intermediate two-body decays $B^{0}\to\Delta^+\bar{p}$ and $B^0\to\bar{\Delta}^-p$, and set an upper limit on the branching fraction: $\mathcal{B}(B^0\to \Delta^+\bar{p})+\mathcal{B}(B^0\to\bar{\Delta}^-p)
Published: 2019

44. Measurements of branching fraction and direct CP asymmetry in B±→KS0KS0K± and a search for B±→KS0KS0π±

Author: S. Nishida, Jyoti Prakash Biswal, X. L. Wang, G. Schnell, T. Iijima, J. G. Shiu, J. K. Lee, V. Gaur, V. Chekelian, Phillip Urquijo, Deepak Kumar Sahoo, M. Nakao, W. Ostrowicz, R. Van Tonder, B. K. Pal, S. Jia, P. Goldenzweig, T. Matsuda, K. K. Joo, J. E. Fast, T. Bilka, T. Kuhr, J. MacNaughton, J. C. Dingfelder, S. Sandilya, D. Cinabro, Y. B. Li, M. Z. Wang, K. Kinoshita, O. Grzymkowska, C. H. Wang, S. Paul, H. B. Jeon, Seema Bahinipati, D. M. Asner, L. Li Gioi, T. V. Dong, A. Garmash, Y. Choi, K. J. Nath, Daniel Greenwald, M. Starič, P. Krokovny, S. Eidelman, T. Hara, K. Cho, Kevin Varvell, H. Ye, K. Prasanth, J. H. Yin, V. Bansal, F. Tenchini, H. Ono, A. M. Bakich, M. Iwasaki, A. Bozek, Somnath Choudhury, D. Matvienko, B. G. Cheon, A. Ishikawa, T. Sumiyoshi, D. Epifanov, Z. Natkaniec, Soumya D. Mohanty, Y. Tao, T. Mori, H. Aihara, P. K. Behera, R. B. Garg, Y. Usov, H. Hayashii, B. G. Fulsom, J. Haba, N. Gabyshev, D. Červenkov, Martin Ritter, Dmytro Levit, T. Sanuki, Z. P. Zhang, V. Bhardwaj, T. K. Pedlar, Victoria Zhukova, Hyunyong Kim, C. H. Kim, C. H. Li, S. Pardi, S. K. Choi, A. Chen, B. Golob, N. K. Nisar, S. Korpar, V. Savinov, Seongbae Yang, T.-A. Shibata, S. Cunliffe, T. D. Kimmel, P. Križan, N. Dash, Y. Unno, K. Chilikin, R. Kroeger, R. Ayad, Sudhanwa Patra, A. B. Kaliyar, Kohei Ogawa, M. E. Sevior, I. S. Lee, Y. Iwasaki, Y. J. Kwon, Jihwa Lee, L. E. Piilonen, G. Pakhlova, K. Inami, R. Kulasiri, Z. S. Stottler, O. Schneider, M. Merola, J. Schueler, Y. Yusa, R. Pestotnik, M. Takizawa, Kiyoshi Tanida, C. Kiesling, J. K. Ahn, Tao Luo, Z. Drásal, M. Sumihama, K. Trabelsi, M. Bračko, E. Won, J. Libby, J. Kahn, C. P. Shen, A. J. Schwartz, Seok Kim, John Yelton, Z. Doležal, I. Adachi, V. Babu, T. Aushev, T. Ferber, D. Y. Kim, M. Salehi, Y. Seino, V.N. Zhilich, H. Kichimi, K. Miyabayashi, I. Badhrees, W. Sutcliffe, G.V. Russo, Y. Onuki, W. S. Hou, M. Gelb, K. Nishimura, V. M. Aulchenko, Shih-Chang Lee, P. K. Resmi, H. Miyata, Bo Wang, C.-L. Hsu, K. Hayasaka, A. Bobrov, H. E. Cho, A. Frey, Peter Kodys, W. W. Jacobs, S. Di Carlo, G. Karyan, R. Mizuk, C. Beleño, E. Prencipe, S. Al Said, S. Uno, C. Schwanda, Rahul Kumar, A. K. Giri, G. B. Mohanty, M. Nayak, L. Cao, M. Uchida, L. K. Li, G. S. Varner, R. Itoh, A. Rostomyan, P. Wang, D. Joffe, A. Vossen, K. Senyo, Frank Simon, T. Kawasaki, Vladimir Popov, D. Kotchetkov, A. Rabusov, Y. Sakai, E. Solovieva, T. Uglov, A. Kuzmin, S. Ogawa, and E. Waheed
Subjects: Physics, Meson, 010308 nuclear & particles physics, Branching fraction, media_common.quotation_subject, Hadron, Analytical chemistry, Resonance, 01 natural sciences, Asymmetry, law.invention, KEKB, law, 0103 physical sciences, B meson, 010306 general physics, Collider, media_common
Abstract: We study charmless hadronic decays of charged B mesons to the final states KS0KS0K± and KS0KS0π± using a 711 fb-1 data sample that contains 772×106 BB¯ pairs and was collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. For B±→KS0KS0K±, the measured branching fraction and direct CP asymmetry are [10.42±0.43(stat)±0.22(syst)]×10-6 and [+1.6±3.9(stat)±0.9(syst)]%, respectively. In the absence of a statistically significant signal for B±→KS0KS0π±, we obtain a 90% confidence-level upper limit on its branching fraction as 8.7×10-7.
Published: 2019

45. Measurements of isospin asymmetry and difference of directCPasymmetries in inclusiveB→Xsγdecays

Author: V. Babu, T. Aushev, Jyoti Prakash Biswal, T. Ferber, T. Matsuda, S. Uno, G. Bonvicini, G. Schnell, S. H. Kim, P. Krokovny, Soumen Paul, Rakesh Kumar, K. Cho, S. Okuno, D. Epifanov, H. Ono, T. Kuhr, B. Pal, R. Mizuk, T. K. Pedlar, Z. P. Zhang, H. B. Jeon, Y. Guan, K. K. Joo, Kevin Varvell, G. B. Mohanty, A. Ishikawa, M. Nakao, R. Van Tonder, Eleonora Guido, P. Pakhlov, T. Mori, H. Aihara, Y. Yusa, Tao Luo, K. Tanida, E. Widmann, J. Libby, D. M. Asner, Toru Iijima, K. Hayasaka, A. Vossen, V. Gaur, T. V. Dong, C. Kiesling, Y. Choi, K. J. Nath, Vikas Bansal, H. Park, A. Bozek, L. Santelj, O. Seon, J. G. Shiu, Y. Seino, Y. Sakai, I. Adachi, M. Bračko, Takeo Kawasaki, Shoichi Watanuki, C. Van Hulse, Bingran Wang, Kohei Ogawa, L. E. Piilonen, D. Cinabro, N. Taniguchi, J. B. Kim, W. Sutcliffe, A. M. Bakich, M. Lubej, B. Bhuyan, Y. B. Li, T. E. Browder, G. Inguglia, V. Zhukova, P. Chang, K. Inami, Tara Nanut, T. Uglov, N. Gabyshev, D. Červenkov, T. Julius, Shih-Chang Lee, A. Frey, M. Iwasaki, A. Bobrov, E. Solovieva, B. G. Cheon, V.E. Shebalin, Somnath Choudhury, R. Ayad, M. Z. Wang, K. Kinoshita, J. Haba, Andrey Sokolov, S. Nishida, V. Savinov, R. Itoh, S. Al Said, D. Kotchetkov, A. Kuzmin, D. Y. Kim, Jochen Dingfelder, B.A. Shwartz, S. Cunliffe, M. Takizawa, Samo Stanič, S. Korpar, K. Nishimura, S. Ogawa, I. Jaegle, M. Merola, D. Liventsev, James E. Fast, Vladimir Zhulanov, Y. Jin, R. Kroeger, I. S. Lee, K. Senyo, P. Goldenzweig, C. Schwanda, H. Hayashii, F. Tenchini, T. Sumiyoshi, Martin Ritter, P. Križan, Massimo Berger, E. Prencipe, K. Chilikin, J. Schueler, E. Won, R. Pestotnik, J. H. Yin, G.V. Russo, W. S. Hou, M. Uchida, L. K. Li, V. Bhardwaj, G. S. Varner, A. Rostomyan, P. Wang, B. G. Fulsom, V.N. Zhilich, S. E. Vahsen, K. Miyabayashi, I. Badhrees, Y. Iwasaki, Y. J. Kwon, O. Schneider, S. Sandilya, A. J. Schwartz, M. Starič, M. Gelb, W. Ostrowicz, Peter Kodys, W. W. Jacobs, S. Di Carlo, G. Karyan, A. K. Giri, S. Jia, M. Masuda, L. Cao, C. Beleño, Yoshinobu Unno, C. H. Wang, A. Garmash, S. Zakharov, H. Ye, A. Zupanc, T. Bilka, G. Pakhlova, M. Watanabe, M. Niiyama, L. Li Gioi, T. A. Shibata, H. Miyata, Prafulla Kumar Behera, and S.I. Eidelman
Subjects: Physics, Particle physics, Annihilation, Meson, 010308 nuclear & particles physics, Branching fraction, media_common.quotation_subject, Zero (complex analysis), 01 natural sciences, Asymmetry, KEKB, Isospin, 0103 physical sciences, Production (computer science), 010306 general physics, media_common
Abstract: We report measurements of isospin asymmetry $\Delta_{0-}$ and difference of direct $CP$ asymmetries $\Delta A_{CP}$ between charged and neutral $B \to X_s \gamma$ decays. This analysis is based on the data sample containing $772 \times 10^6 B\bar{B}$ pairs that was collected with the Belle detector at the KEKB energy-asymmetric $e^+ e^-$ collider. Using a sum-of-exclusive technique with invariant $X_s$ mass up to 2.8~GeV/$c^2$, we obtain $\Delta_{0-} = \bigl[-0.48 \pm 1.49 {\rm (stat.)} \pm 0.97 {\rm (syst.)} \pm 1.15 {(f_{+-}/f_{00})}\bigr]$\% and $\Delta A_{CP} = \bigl[+3.69 \pm 2.65 {\rm (stat.)} \pm 0.76{\rm (syst.)}\bigr]$\%, where the last uncertainty for $\Delta_{0-}$ is due to the uncertainty on the production ratio of $B^+B^-$ to $B^0\bar{B}^0$ in $\Upsilon(4S)$ decays. The measured value of $\Delta_{0-}$ is consistent with zero, allowing us to constrain the resolved photon contribution in the $B \to X_s \gamma$, and improve the branching fraction prediction. The result for $\Delta A_{CP}$ is consistent with the prediction of the SM. We also measure the direct $CP$ asymmetries for charged and neutral $B \to X_s \gamma$ decays. All the measurements are the most precise to date.
Published: 2019

46. Observation of B+→pΛ¯K+K− and B+→p¯ΛK+K+

Author: D. Cinabro, M. Lubej, G. Inguglia, G. Schnell, T. Iijima, P. Chang, Somnath Choudhury, T. Kuhr, H. Miyata, M. Uchida, Bo Wang, S. Nishida, J. E. Fast, P. Goldenzweig, M. Sumihama, L. K. Li, D. Liventsev, S. Pardi, J. K. Ahn, K. Hayasaka, X. L. Wang, V. Chekelian, S. Sandilya, Andrey Sokolov, Y. Sakai, S. Okuno, D. Kotchetkov, M. Starič, A. Rabusov, T. Bilka, R. Kroeger, M. E. Sevior, I. S. Lee, G. S. Varner, R. Van Tonder, B. K. Pal, Eleonora Guido, H. Ono, V. Babu, M. Watanabe, E. Solovieva, D. Joffe, J. Libby, A. Vossen, Frank Simon, Vladimir Popov, R. Itoh, A. Rostomyan, S. Eidelman, T. Matsuda, G. Bonvicini, L. Li Gioi, Shih-Chang Lee, Y. Seino, P. Pakhlov, S. E. Vahsen, A. Vinokurova, T. Aushev, H. Ye, Shoichi Watanuki, V.N. Zhilich, H. Park, A. Bozek, P. Krokovny, M. Merola, A. B. Kaliyar, C. B. Van Hulse, M. Z. Wang, K. Kinoshita, Y. Iwasaki, Y. J. Kwon, D. Matvienko, K. Cho, V. V. Zhulanov, O. Schneider, B. Shwartz, U. Tamponi, T. Ferber, R. B. Garg, B. Bhuyan, K. Miyabayashi, I. Badhrees, D. Epifanov, Shigeki Hirose, M. Takizawa, S. Jia, E. Won, B. G. Fulsom, T. E. Browder, A. Garmash, V. Bansal, A. K. Giri, W. Sutcliffe, Z. Doležal, C. H. Wang, V. Savinov, P. K. Behera, H. Atmacan, S. Paul, A. Zupanc, Y. Unno, J. B. Kim, Tara Nanut, M. Gelb, J. H. Yin, J. G. Shiu, R. Ayad, K. T. Kim, T. Uglov, J. B. Singh, S. K. Choi, Massimo Berger, N. K. Nisar, Tao Luo, K. Tanida, V. M. Aulchenko, H. K. Moon, J. S. Lange, M. Masuda, G. B. Mohanty, C. Z. Yuan, E. Prencipe, G.V. Russo, S. Cunliffe, K. Senyo, W. S. Hou, I. Adachi, V. Vorobyev, C. P. Shen, H. Hayashii, Seok Kim, M. Salehi, Hyunyong Kim, T. Kawasaki, Victoria Zhukova, T.-A. Shibata, A. M. Bakich, H. Kichimi, R. Mussa, P. C. Lu, H. B. Jeon, L. Cao, A. Chen, A. Kuzmin, M. C. Chang, Phillip Urquijo, K. Inami, S. Ogawa, Z. Drásal, C.-L. Hsu, A. Ishikawa, Y. B. Li, D. M. Asner, K. Chilikin, H. Ozaki, Peter Kodys, W. W. Jacobs, P. Križan, F. Tenchini, S. Di Carlo, N. Gabyshev, D. Červenkov, R. Mizuk, R. Pestotnik, C. Beleño, M. Iwasaki, T. Sumiyoshi, B. G. Cheon, Martin Ritter, T. Sanuki, Eberhard Widmann, L. E. Piilonen, J. Haba, G. Pakhlova, J. F. Strube, R. Kulasiri, S. Korpar, D. Y. Kim, T. Julius, N. Dash, R. Chistov, K. K. Joo, C. Kiesling, T. V. Dong, M. Bračko, Y. Choi, K. J. Nath, L. Santelj, Z. Natkaniec, Jyoti Prakash Biswal, V. Gaur, S. Al Said, M. Nakao, S. Uno, C. Schwanda, V. Bhardwaj, T. K. Pedlar, Y.-T. Lai, M. Nayak, T. Mori, H. Aihara, Ya-Qiu Jin, Y. Usov, Z. P. Zhang, and V.E. Shebalin
Subjects: Physics, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, Resonance, 010306 general physics, Lambda, 01 natural sciences, Bar (unit)
Abstract: We report the study of B+→pΛ¯K+K- and B+→p¯ΛK+K+ decays using a 772×106 BB¯ pair data sample recorded on the ϒ(4S) resonance with the Belle detector at KEKB. The following branching fractions are measured: B(B+→pΛ¯K+K-)=(4.10-0.43+0.45±0.50)×10-6, B(B+→p¯ΛK+K+)=(3.70-0.37+0.39±0.44)×10-6, B(ηc→pΛ¯K-+c.c.)=(2.83-0.34+0.36±0.35)×10-3 and B(B+→pΛ¯ϕ)=( 7.95±2.09±0.77)×10-7, where c.c. denotes the corresponding charge-conjugation process. The intermediate resonance decays are excluded in the four-body decay measurements. We also find evidence for B(ηc→Λ(1520)Λ¯+c.c.)=(3.48±1.48±0.46)×10-3 and B(B+→Λ(1520)Λ¯K+)=( 2.23±0.63±0.25)×10-6. No significant signals are found for J/ψ→Λ(1520)Λ¯+c.c. and B+→Λ¯(1520)ΛK+; we set the 90% confidence level upper limits on their decay branching fractions as
Published: 2019

47. 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

48. Search for CP violation with kinematic asymmetries in the D0→K+K−π+π− decay

Author: L. Li Gioi, D. Matvienko, S. Eidelman, Eberhard Widmann, J. F. Strube, L. E. Piilonen, G. Pakhlova, Jyoti Prakash Biswal, H. Ye, H. Yamamoto, T. Matsuda, R. Kroeger, I. S. Lee, A. Garmash, Daniel Greenwald, V. Bansal, R. Kulasiri, D. Cinabro, K. Prasanth, Tao Luo, K. Tanida, H. Park, A. Bozek, Victoria Zhukova, J. K. Lee, A. Chen, P. K. Resmi, T. Uglov, Y. Iwasaki, Y. J. Kwon, H. Kichimi, S. K. Choi, G. Schnell, Y.-T. Lai, Z. J. Liptak, A. M. Bakich, V. Gaur, R. Mussa, P. C. Lu, T. Iijima, B. G. Cheon, M. Lubej, G. Inguglia, K. Chilikin, M. Nakao, P. Chang, M. Nayak, A. Ishikawa, P. K. Behera, O. Schneider, P. Krokovny, P. Križan, J. MacNaughton, Jihwa Lee, N. Gabyshev, D. Červenkov, J. E. Fast, K. Cho, Y. Sakai, Ya-Qiu Jin, J. Haba, R. Pestotnik, E. Won, R. B. Garg, A. Frey, B. Bhuyan, M. Merola, Seema Bahinipati, T. V. Dong, D. Epifanov, Y. Unno, B. G. Fulsom, Y. Choi, I. Adachi, H. Atmacan, C. Kiesling, T. Bilka, M. Uchida, S. Korpar, P. Goldenzweig, J. Libby, S. Sandilya, K. J. Nath, S. Ogawa, M. Salehi, V. V. Zhulanov, N. Dash, M. Mrvar, T. K. Pedlar, L. K. Li, M. Bračko, T. Hara, E. Nakano, M. Starič, L. Santelj, C. Z. Yuan, V. Savinov, Y. Tao, T. Mori, H. Aihara, Peter Kodys, M. Sumihama, J. G. Shiu, Y. Seino, E. Prencipe, S. Jia, D. Liventsev, Motoki Iwasaki, D. Y. Kim, Phillip Urquijo, S. Cunliffe, M. Gelb, S. Pardi, S. Nishida, E. Solovieva, S. Al Said, C. H. Wang, N. K. Nisar, H. K. Moon, S. Paul, J. S. Lange, Z. P. Zhang, Y. B. Li, G. S. Varner, Y. Guan, D. M. Asner, X. L. Wang, C. H. Li, V. Chekelian, G.V. Russo, S. Di Carlo, W. Sutcliffe, G. Karyan, R. Itoh, D. Kotchetkov, A. Rostomyan, R. Van Tonder, B. K. Pal, M. Takizawa, W. S. Hou, P. Wang, Alexei Kuzmin, A. Rabusov, K. Lalwani, Z. Doležal, V. M. Aulchenko, K. Senyo, T. Kawasaki, S. Uno, C. Schwanda, J. B. Kim, D. Joffe, Seongbae Yang, Shih-Chang Lee, O. Seon, Vladimir Popov, A. K. Giri, F. Tenchini, T. Sumiyoshi, M. Masuda, V.N. Zhilich, Martin Ritter, G. B. Mohanty, T. Sanuki, K. Miyabayashi, I. Badhrees, Y. Yusa, L. Cao, R. Mizuk, C. Beleño, C. P. Shen, Seok Kim, V. Babu, T. Aushev, T. Ferber, Bo Wang, K. Hayasaka, A. Bobrov, T.-A. Shibata, K. Inami, M. Z. Wang, K. Kinoshita, H. Hayashii, and Hyunyong Kim
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, media_common.quotation_subject, High Energy Physics::Phenomenology, 01 natural sciences, Measure (mathematics), Asymmetry, Luminosity, law.invention, Pseudoscalar, KEKB, law, 0103 physical sciences, CP violation, High Energy Physics::Experiment, 010306 general physics, Collider, media_common
Abstract: We search for CP violation in the singly-Cabibbo-suppressed decay D0→K+K-π+π- using data corresponding to an integrated luminosity of 988 fb-1 collected by the Belle detector at the KEKB e+e- collider. We measure a set of five kinematically dependent CP asymmetries, of which four asymmetries are measured for the first time. The set of asymmetry measurements can be sensitive to CP violation via interference between the different partial-wave contributions to the decay and performed on other pseudoscalar decays. We find no evidence of CP violation.
Published: 2019

49. The Belle II Physics Book

Author: C. Niebuhr, Ulrich Nierste, I. Heredia-De La Cruz, Mikihiko Nakao, Philip Bambade, Kristine M. Smith, Concettina Sfienti, S. Bilokin, M. Iwasaki, G. Tetlalmatzi-Xolocotzi, S. Sandilya, Andreas Crivellin, M. Uchida, Melissa K. Takahashi, L. K. Li, S. Bettarini, B. G. Cheon, M. Blanke, M. Starič, Yoshinobu Unno, L. M. Cremaldi, D. van Dyk, T. Kumita, Andrey Sokolov, V. Bhardwaj, Ikaros I.Y. Bigi, J. Tan, Shuji Tanaka, G. S. Varner, M. Arndt, R. A. Briere, I. Nakamura, M. Maggiora, R. Itoh, T. Geßler, K. Nishimura, Cai-Dian Lü, Kevin Varvell, Matthias Jamin, Gil Paz, D. Cinabro, Fady Bishara, R. Giordano, M. Lubej, J. Schueler, K. Belous, S. Korpar, W. Yuan, C. Joo, G. López Castro, A. Gaz, H. Kindo, X. Zhou, Andrzej J. Buras, Mikolaj Misiak, E. Solovieva, L. E. Piilonen, B. Gobbo, P. Chang, M. Kumar, A. Rostomyan, Takuya Higuchi, A. Frey, Michael Gronau, Ian Watson, Bruce Yabsley, E. Won, James E. Fast, K. Huang, A. Morda, F. Forti, M. Mrvar, M. Ciuchini, Agnese Martini, A. K. Giri, K. Sumisawa, D. Neverov, B. G. Fulsom, G. De Pietro, Y. Guan, G. Rizzo, M. Bračko, M. Destefanis, G. Bell, P. Taras, B. Bhuyan, L. Podesta Lerma, S. Marcello, S. Gribanov, S. Jahn, V. Gaur, Michael Ritzert, Antonio Pich, M. Schram, A. Sibidanov, Dipak Kumar Sahoo, L. Zani, S. E. Vahsen, R. Mussa, Z. Was, A. Vossen, Yukinori Sato, A. Zupanc, F. Meier, M. Künzel, J. V. Bennett, A. Garmash, H. Atmacan, Satoshi Mishima, Jelena Ninkovic, Mehmet Zeyrek, W. Sutcliffe, T. J. Moon, Soumen Paul, Q. Xu, Rocky Bala Garg, Henryk Czyz, Y.-T. Lai, R. Godang, Andreas Warburton, Hitoshi Yamamoto, W. Yan, J. G. Shiu, C. L. Hsu, H. B. Jeon, H. Aihara, D. Greenwald, C. Hearty, Thorsten Feldmann, M. Tanaka, H. Miyata, U. Gebauer, T. E. Browder, Prafulla Kumar Behera, T. Iijima, O. Seon, Frank Simon, Felix Metzner, M. Greco, F. Müller, S.I. Eidelman, A. Ishikawa, Y. Usov, P. Ahlburg, Stephen Godfrey, Y. Kiyo, Zoltan Ligeti, G. Muroyama, K. Kim, Svjetlana Fajfer, Stephen Lars Olsen, D. J. Summers, C. Wessel, S. Wehle, O. Frost, P. K. Resmi, Sumio Yamada, N. Dash, Nora Brambilla, U. Tippawan, B. Scavino, F. Di Capua, Phillip Urquijo, Felix Kahlhoefer, Y. Iwasaki, B. Paschen, S. Longo, H. Ono, Pablo Roig, R. Mizuk, W. Kuehn, F. J. Tackmann, S. Rummel, P. Križan, Joachim Brod, M. De Nuccio, Javier Virto, C. S. Park, S. Y. Suzuki, X. P. Xu, H. Miyake, T. Kuhr, I. Ripp-Baudot, C. MacQueen, R. Kowalewski, D. Shih, M. Hoek, Y. J. Kwon, S. Zakharov, J. Jones, W. W. Jacobs, E. Passemar, Kohei Ogawa, D. Nomura, V. Savinov, R. J. Sobie, John Webb, W. Gradl, D. Kotchetkov, M. V. Purohit, L. Vitale, W. S. Hou, D. J. Robinson, Y. B. Li, Massimo Berger, S. Hollitt, A. Sangal, Shih-Chang Lee, Shoji Hashimoto, S. Fiore, S. Di Carlo, K. Wan, P. Branchini, Yongsun Kim, A. Rabusov, A. De Yta Hernandez, Marcel Vos, Vittorio Lubicz, Samo Stanič, A. J. Schwartz, L. Cao, P. Leitl, S. Bilmis, J. Stypula, K. Lalwani, C. Schwanda, Ayan Paul, G. Tejeda Muñoz, Xuejun Wang, R. Sinha, M. Hernandez Villanueva, S. Uehara, Makoto Tabata, Jakub Kandra, N. Rout, Jakob Schwichtenberg, E. Graziani, S. Hirose, C. Miller, H. J. Kim, A. S. Kronfeld, K. Inami, Junko Shigemitsu, Kai Schmidt-Hoberg, A. Fodor, C. Z. Yuan, S. H. Robertson, J. M. Roney, D. Cuesta, Wolfgang Altmannshofer, D. Matvienko, R. Stroili, Megumi Naruki, Jernej F. Kamenik, F. Luetticke, J. H. Yin, H. Schreeck, Florian Bernlochner, S. X. Li, B.A. Shwartz, A. Passeri, E. Prencipe, M. Gabriel, I. Yeo, R. Rasheed, Noritaka Shimizu, T. V. Dong, K. Adamczyk, F. De Fazio, M. Nayak, F. Tenchini, M. Merola, Heather E. Logan, A. Nefediev, Qiang Li, Matthew T. Bender, Ihn Sik Seong, M. Remnev, B. Gao, I. M. Peruzzi, D. Getzkow, I. Domínguez Jiménez, B. Golob, T. Lueck, D. Liventsev, A. B. Kaliyar, G. Pakhlova, T. Sumiyoshi, Janusz Rosiek, Jia-ju Zhang, Luca Silvestrini, Antonio D. Polosa, Abhisek Datta, V. Chekelian, D. Rodríguez Pérez, Vladimir Zhulanov, Christoph Bobeth, H. K. Moon, B. Spruck, Y. Jin, R. Kroeger, K. Prasanth, J. Evans, Roman Zwicky, Y. Zhang, H. Nakazawa, I. Adachi, Xuyang Gao, J. S. Lange, Y. Ushiroda, M. E. Sevior, S. Westhoff, Victoria Zhukova, V. M. Braun, N. Gabyshev, D. Červenkov, G. B. Mohanty, C. Ketter, Martin Ritter, Thomas Teubner, Dmytro Levit, P. Goldenzweig, T. D. Kimmel, G. Casarosa, N. Taniguchi, M. Z. Wang, R. Van Tonder, E. De La Cruz Burelo, Alberto Aloisio, Antonio Vairo, Y. Ban, G. De Nardo, J. F. Krohn, N. Offen, N. Anh Ky, R. Kulasiri, Y. Kato, P. Pakhlov, Jure Zupan, J. F. Strube, M. Sumihama, K. Kinoshita, U. Tamponi, Nils Braun, Tao Luo, K. Tanida, P. Wieduwilt, J. B. Kim, Y. Yusa, N. T. Hong Van, Peter Stoffer, K. Senyo, R. Cheaib, Feng-Kun Guo, Tobias Huber, A. Tayduganov, T. Yoshinobu, E. Guido, L. Li Gioi, Vladimir Popov, G. Inguglia, M. Perelló, G. Russo, N. Nellikunnummel, H. Park, A. Bozek, M. Takizawa, M. Jung, S. Levonian, S. Skambraks, A. Korobov, Z. S. Stottler, I. Jaegle, Jae-Yong Lee, J. Pradler, K. Miyabayashi, S. Baehr, B. Moussallam, A. Gellrich, L. Burmistrov, S. Cunliffe, Y. Onuki, Yi Fan Hu, X. Ji, Y. Maeda, Hidekazu Kakuno, H. Kichimi, M. C. Chang, T. Morii, M. Salehi, Rakesh Kumar, H. Y. Cheng, Z. J. Liptak, Bingran Wang, M. Khasmidatul, F. Beaujean, Ezio Torassa, J. Wiechczynski, Tariq Aziz, V. Aushev, Stephen R. Sharpe, R. Ayad, Seema Bahinipati, Yang Li, U. Stolzenberg, T. Nakano, Massimiliano Procura, K. J. Nath, Kenneth Moats, A. Loos, M. Shapkin, L. Santelj, S. Dey, T. Tsuboyama, Y. Tao, S. Schacht, A. Hershenhorn, D. Y. Kim, K. Chilikin, T. Kaneko, Y. Sakai, Abner Soffer, O. Hartbrich, S. Lacaprara, D. Epifanov, M. Barrett, H. Hayashii, Sasa Prelovsek, R. Pestotnik, B. Pal, J. Baudot, S. Bussino, Farvah Mahmoudi, Giulia Ricciardi, T. K. Pedlar, J. A. McKenna, E. Paoloni, Seongbae Yang, Yi Chen, Maya Hachiya Shimomura, Enrico Bernieri, S. Uno, Ladislav Andricek, G. Bonvicini, O. Gogota, Yu. Onishchuk, A. Vinokurova, Tobias Hurth, P. Krokovny, K. H. Kang, K. Cho, Grzegorz Nowak, A. Kokulu, T. Aushev, T. Ferber, Paul Jackson, Tomoyuki Konno, Alexander L. Kagan, D. Dossett, I. Kadenko, K. Trabelsi, J. Kahn, C. P. Shen, T. Deppisch, K. T. Kim, Gilberto Colangelo, Marcella Bona, H. Nakayama, C. Hanhart, S. Jia, Y. Shimizu, D. A. Sanders, Surajit Maity, J. B. Singh, S. K. Choi, S. Duell, N. Starinsky, Yuval Grossman, M. H. A. Nouxman, Martin Hoferichter, Silvano Simula, Junji Hisano, Alexey A. Petrov, E. Ganiev, S. Halder, A. Kuzmin, F. Abudinen, M. Yonenaga, Kim Maltman, Thomas Hauth, Elisa Manoni, T. Bilka, S. Reiter, E. De Lucia, M. Gelb, Ulrich Haisch, L. B. Rizzuto, Th. Müller, E. Waheed, H. Ye, Ryoutaro Watanabe, B. Deschamps, Claudia Cecchi, K. Hara, G. Caria, David M. Straub, Caleb Smith, Carlos Marinas, Z. Doležal, Tara Nanut, T. Uglov, A. Guo, A. Glazov, Matthew J. Dolan, C. Rosenfeld, R. M. Seddon, Martin Florian Bessner, L. Hofer, Jun Sasaki, Somnath Choudhury, E. Kou, J. Libby, D. M. Asner, K. Hayasaka, Cheng-Wei Chiang, J. W. Choi, Y. Seino, D. Besson, M. T. Prim, Takeo Kawasaki, Martin Beneke, S. Nishida, M. I. Martínez Hernández, S. Jaeger, Jochen Dingfelder, Nejc Košnik, H. M. Wakeling, 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), École normale supérieure - Lyon (ENS Lyon), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11), 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), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Belle-II, Ministerio de Ciencia, Innovación y Universidades (España), 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)-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)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure de Lyon (ENS de Lyon), 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]), 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), Kou, E., Urquijo, P., Altmannshofer, W., Beaujean, F., Bell, G., Beneke, M., Bigi, I. I., Blanke, F. Bishara M., Bobeth, C., Bona, M., Brambilla, N., Braun, V. M., Brod, J., Buras, A. J., Cheng, H. Y., Chiang, C. W., Colangelo, G., Czyz, H., Datta, A., De Fazio, F., Deppisch, T., Dolan, M. J., Fajfer, S., Feldmann, T., Godfrey, S., Gronau, M., Grossman, Y., Guo, F. K., Haisch, U., Hanhart, C., Hashimoto, S., Hirose, S., Hisano, J., Hofer, L., Hoferichter, M., Hou, W. S., Huber, T., Jahn, S. Jaeger S., Jamin, M., Jones, J., Jung, M., Kagan, A. L., Kahlhoefer, F., Kamenik, J. F., Kaneko, T., Kiyo, Y., Kokulu, A., Kosnik, N., Kronfeld, A. S., Ligeti, Z., Logan, H., C. D., Lu, Lubicz, V., Mahmoudi, F., Maltman, K., Misiak, M., Mishima, S., Moats, K., Moussallam, B., Nefediev, A., Nierste, U., Nomura, D., Offen, N., Olsen, S. L., Passemar, E., Paul, A., Paz, G., Petrov, A. A., Pich, A., Polosa, A. D., Pradler, J., Prelovsek, S., Procura, M., Ricciardi, G., Robinson, D. J., Roig, P., Schacht, S., Schmidt-Hoberg, K., Schwichtenberg, J., Sharpe, S. 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A., Sandilya, S., Sangal, A., Santelj, L., Sasaki, J., Sato, Y., Savinov, V., Scavino, B., Schram, M., Schreeck, H., Schueler, J., Schwanda, C., Schwartz, A. J., Seddon, R. M., Seino, Y., Senyo, K., Seon, O., Seong, I. S., Sevior, M. E., Sfienti, C., Shapkin, M., Shen, C. P., Shimomura, M., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Sinha, R., Skambraks, S., Smith, K., Sobie, R. J., Soffer, A., Sokolov, A., Solovieva, E., Spruck, B., Stanic, S., Staric, M., Starinsky, N., Stolzenberg, U., Stottler, Z., Stroili, R., Strube, J. F., Stypula, J., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Summers, D., Sutcliffe, W., Suzuki, S. Y., Tabata, M., Takahashi, M., Takizawa, M., Tamponi, U., Tan, J., Tanaka, S., Tanida, K., Taniguchi, N., Tao, Y., Taras, P., Tejeda Munoz, G., Tenchini, F., Tippawan, U., Torassa, E., Trabelsi, K., Tsuboyama, T., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Ushiroda, Y., Usov, Y., Vahsen, S. 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I, Hernandez Villanueva, M, Hershenhorn, A, Higuchi, T, Hoek, M, Hollitt, S, Hong Van, N T, Hsu, C-L, Hu, Y, Huang, K, Iijima, T, Inami, K, Inguglia, G, Ishikawa, A, Itoh, R, Iwasaki, Y, Iwasaki, M, Jackson, P, Jacobs, W W, Jaegle, I, Jeon, H B, Ji, X, Jia, S, Jin, Y, Joo, C, Künzel, M, Kadenko, I, Kahn, J, Kakuno, H, Kaliyar, A B, Kandra, J, Kang, K H, Kato, Y, Kawasaki, T, Ketter, C, Khasmidatul, M, Kichimi, H, Kim, J B, Kim, K T, Kim, H J, Kim, D Y, Kim, K, Kim, Y, Kimmel, T D, Kindo, H, Kinoshita, K, Konno, T, Korobov, A, Korpar, S, Kotchetkov, D, Kowalewski, R, Križan, P, Kroeger, R, Krohn, J-F, Krokovny, P, Kuehn, W, Kuhr, T, Kulasiri, R, Kumar, M, Kumar, R, Kumita, T, Kuzmin, A, Kwon, Y-J, Lacaprara, S, Lai, Y-T, Lalwani, K, Lange, J S, Lee, S C, Lee, J Y, Leitl, P, Levit, D, Levonian, S, Li, S, Li, L K, Li, Y, Li, Y B, Li, Q, Li Gioi, L, Libby, J, Liptak, Z, Liventsev, D, Longo, S, Loos, A, Lopez Castro, G, Lubej, M, Lueck, T, Luetticke, F, Luo, T, Müller, F, Müller, Th, 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E, Vinokurova, A, Vitale, L, Vos, M, Vossen, A, Waheed, E, Wakeling, H, Wan, K, Wang, M-Z, Wang, X L, Wang, B, Warburton, A, Webb, J, Wehle, S, Wessel, C, Wiechczynski, J, Wieduwilt, P, Won, E, Xu, Q, Xu, X, Yabsley, B D, Yamada, S, Yamamoto, H, Yan, W, Yang, S B, Ye, H, Yeo, I, Yin, J H, Yonenaga, M, Yoshinobu, T, Yuan, W, Yuan, C Z, Yusa, Y, Zakharov, S, Zani, L, Zeyrek, M, Zhang, J, Zhang, Y, Zhou, X, Zhukova, V, Zhulanov, V, Zupanc, A, Bishara, F., Blanke, M., Ciuchini, M., Crivellin, A., Evans, J., Hurth, T., Jaeger, S., Jahn, S., Lu, C. D., Rosiek, J., Shih, D., Westhoff, S., Kato, Y., Li, L. K., and Li, Y. B.
Subjects: B: semileptonic decay, Physics beyond the Standard Model, Hadron, electroproduction [charmonium], General Physics and Astronomy, ComputingMilieux_LEGALASPECTSOFCOMPUTING, B: radiative decay, annihilation [electron positron], 7. Clean energy, 01 natural sciences, charmonium: electroproduction, B physics, High Energy Physics - Experiment, law.invention, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Z', law, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Charm (quantum number), dark sector searches, Physics, lifetime, radiative decay [B], doublet [Higgs particle], new physics, High Energy Physics - Lattice (hep-lat), ddc:530, Electroweak interaction, lepton: flavor: violation, hep-ph, Particle Physics - Lattice, Monte Carlo [numerical calculations], electron positron: colliding beams, Quarkonium, asymmetry: CP, quarkonium physics, electroweak interaction: penguin, High Energy Physics - Phenomenology, Improved performance, colliding beams [electron positron], CP violation, interface, electroproduction [quarkonium], electroweak precision measurements, numerical calculations: Monte Carlo, physics, Particle Physics - Experiment, performance, Particle physics, flavor: violation [lepton], review, hep-lat, FOS: Physical sciences, BELLE, High Energy Physics - Lattice, electron positron: annihilation, quarkonium: electroproduction, CP [asymmetry], E(6), Higgs particle: doublet, mixing [D0 anti-D0], Theoretical physics, CP: violation: time dependence, KEK-B, 0103 physical sciences, quantum chromodynamics, hidden sector [photon], composite, 010306 general physics, Collider, Particle Physics - Phenomenology, photon: hidden sector, hep-ex, 010308 nuclear & particles physics, [PHYS.HLAT]Physics [physics]/High Energy Physics - Lattice [hep-lat], C50 Other topics in experimental particle physics, violation: time dependence [CP], D0 anti-D0: mixing, B2TiP, 530 Physik, Experimental physics, B: leptonic decay, CKM matrix, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], penguin [electroweak interaction], leptonic decay [B], semileptonic decay [B], charm, particle identification, experimental results
Abstract: cd. autorów: L. Cao48,‡, G. Caria145,‡, G. Casarosa57,‡, C. Cecchi56,‡,D. Cˇ ervenkov10,‡,M.-C. Chang22,‡, P. Chang92,‡, R. Cheaib146,‡, V. Chekelian83,‡, Y. Chen154,‡, B. G. Cheon28,‡, K. Chilikin77,‡, K. Cho70,‡, J. Choi14,‡, S.-K. Choi27,‡, S. Choudhury35,‡, D. Cinabro170,‡, L. M. Cremaldi146,‡, D. Cuesta47,‡, S. Cunliffe16,‡, N. Dash33,‡, E. de la Cruz Burelo9,‡, E. de Lucia52,‡, G. De Nardo54,‡, †Editor. ‡Belle II Collaborator. §Theory or external contributing author. M. De Nuccio16,‡, G. De Pietro59,‡, A. De Yta Hernandez9,‡, B. Deschamps129,‡, M. Destefanis60,‡, S. Dey116,‡, F.Di Capua54,‡, S.Di Carlo75,‡, J. Dingfelder129,‡, Z. Doležal10,‡, I. Domínguez Jiménez125,‡, T.V. Dong30,26,‡, D. Dossett145,‡, S. Duell129,‡, S. Eidelman6,96,77,‡, D. Epifanov6,96,‡, J. E. Fast100,‡, T. Ferber16,‡, S. Fiore18,‡, A. Fodor85,‡, F. Forti57,‡, A. Frey24,‡, O. Frost16,‡, B. G. Fulsom100,‡, M. Gabriel83,‡, N. Gabyshev6,96,‡, E. Ganiev61,‡, X. Gao3,‡, B. Gao23,‡, R. Garg101,‡, A. Garmash6,96,‡, V. Gaur169,‡, A. Gaz90,‡, T. Geßler65,‡, U. Gebauer24,‡, M. Gelb48,‡, A. Gellrich16,‡, D. Getzkow65,‡, R. Giordano54,‡, A. Giri35,‡, A. Glazov16,‡, B. Gobbo61,‡, R. Godang157,‡, O. Gogota110,‡, P. Goldenzweig48,‡, B. Golob141,109,‡,W. Gradl63,‡, E. Graziani59,‡, M. Greco60,‡, D. Greenwald114,‡, S. Gribanov6,96,‡, Y. Guan17,‡, E. Guido60,‡, A. Guo41,‡, S. Halder111,‡, K. Hara30,26,‡, O. Hartbrich138,‡, T. Hauth48,‡, K. Hayasaka94,‡, H. Hayashii91,‡, C. Hearty130,‡, I. Heredia De La Cruz9,‡, M. Hernandez Villanueva9,‡, A. Hershenhorn130,‡, T. Higuchi66,‡,M. Hoek63,‡, S. Hollitt124,‡, N. T. HongVan44,‡, C.-L. Hsu160,‡, Y. Hu41,‡, K. Huang92,‡, T. Iijima89,90,‡, K. Inami90,‡, G. Inguglia40,‡,A. Ishikawa119,‡, R. Itoh30,26,‡, Y. Iwasaki30,‡, M. Iwasaki97,‡, P. Jackson124,‡, W. W. Jacobs37,‡, I. Jaegle137,‡, H. B. Jeon73,‡, X. Ji41,‡, S. Jia3,‡,Y. Jin162,‡, C. Joo66,‡,M. Künzel16,‡, I. Kadenko110,‡, J. Kahn78,‡, H. Kakuno121,‡, A. B. Kaliyar36,‡, J. Kandra10,‡, K. H. Kang73,‡, Y. Kato90,‡, T. Kawasaki68,‡, C. Ketter138,‡, M. Khasmidatul143,‡, H. Kichimi30,‡, J. B. Kim71,‡, K. T. Kim71,‡, H. J. Kim73,‡, D.Y. Kim108,‡, K. Kim172,‡, Y. Kim172,‡, T. D. Kimmel169,‡, H. Kindo30,26,‡, K. Kinoshita135,‡, T. Konno68,‡, A. Korobov6,96,‡, S. Korpar144,109,‡, D. Kotchetkov138,‡, R. Kowalewski165,‡, P. Križan141,109,‡, R. Kroeger146,‡, J.-F. Krohn145,‡, P. Krokovny6,96,‡, W. Kuehn65,‡, T. Kuhr78,‡, R. Kulasiri67,‡, M. Kumar81,‡, R. Kumar101,‡, T. Kumita121,‡, A. Kuzmin6,96,‡, Y.-J. Kwon172,‡, S. Lacaprara55,‡, Y.-T. Lai30,‡, K. Lalwani81,‡, J. S. Lange65,‡, S. C. Lee73,‡, J.Y. Lee106,‡, P. Leitl83,‡, D. Levit114,‡, S. Levonian16,‡, S. Li3,‡, L. K. Li41,‡, Y. Li41,‡,Y. B. Li103,‡, Q. Li103,‡, L. Li Gioi83,‡, J. Libby36,‡, Z. Liptak138,‡, D. Liventsev169,‡, S. Longo165,‡, A. Loos158,‡, G. Lopez Castro9,‡, M. Lubej109,‡, T. Lueck57,‡, F. Luetticke129,‡, T. Luo23,‡, F. Müller16,‡, Th. Müller48,‡, C. MacQueen145,‡, Y. Maeda90,‡, M. Maggiora60,‡, S. Maity33,‡, E. Manoni56,‡, S. Marcello60,‡, C. Marinas129,‡, M. Martinez Hernandez4,‡, A. Martini59,‡, D. Matvienko6,96,77,‡, J. A. McKenna130,‡, F. Meier160,‡, M. Merola54,‡, F. Metzner48,‡, C. Miller165,‡, K. Miyabayashi91,‡, H. Miyake30,26,‡, H. Miyata94,‡, R. Mizuk77,88,87,‡, G. B. Mohanty111,163,‡, H. K. Moon71,‡, T. Moon106,‡,A. Morda55,‡, T. Morii66,‡, M. Mrvar109,‡, G. Muroyama90,‡, R. Mussa60,‡, I. Nakamura30,26,‡, T. Nakano99,‡, M. Nakao30,26,‡, H. Nakayama30,26,‡, H. Nakazawa92,‡, T. Nanut109,‡, M. Naruki72,‡, K. J. Nath34,‡, M. Nayak116,‡, N. Nellikunnummel151,‡, D. Neverov90,‡, C. Niebuhr16,‡, J. Ninkovic84,‡, S. Nishida30,26,‡, K. Nishimura138,‡, M. Nouxman143,‡, G. Nowak93,‡, K. Ogawa94,‡, Y. Onishchuk110,‡, H. Ono94,‡, Y. Onuki162,‡, P. Pakhlov77,88,‡, G. Pakhlova87,‡, B. Pal5,‡, E. Paoloni57,‡, H. Park73,‡, C.-S. Park172,‡, B. Paschen129,‡, A. Passeri59,‡, S. Paul114,‡, T. K. Pedlar80,‡, M. Perelló46,‡, I. M. Peruzzi52,‡, R. Pestotnik109,‡, L. E. Piilonen169,‡, L. Podesta Lerma125,‡, V. Popov87,‡, K. Prasanth111,‡, E. Prencipe21,‡, M. Prim48,‡, M. V. Purohit158,‡, A. Rabusov114,‡, R. Rasheed47,‡, S. Reiter65,‡, M. Remnev6,96,‡, P. K. Resmi36,‡, I. Ripp-Baudot47,‡, M. Ritter78,‡, M. Ritzert139,‡, G. Rizzo57,‡, L. Rizzuto141,109,‡, S. H. Robertson85,‡, D. Rodriguez Perez125,‡, J. M. Roney165,‡, C. Rosenfeld158,‡, A. Rostomyan16,‡, N. Rout36,‡, S. Rummel78,‡, G. Russo54,‡, D. Sahoo111,‡, Y. Sakai30,26,‡, M. Salehi143,78,‡, D. A. Sanders146,‡, S. Sandilya135,‡, A. Sangal135,‡, L. Santelj47,‡, J. Sasaki162,‡, Y. Sato30,‡, V. Savinov151,‡, B. Scavino63,‡, M. Schram100,‡, H. Schreeck24,‡, J. Schueler138,‡,C. Schwanda40,‡,A. J. Schwartz135,‡,R.M. Seddon85,‡,Y. Seino94,‡, K. Senyo171,‡, O. Seon90,‡, I. S. Seong138,‡, M. E. Sevior145,‡, C. Sfienti63,‡, M. Shapkin38,‡, C. P. Shen3,‡,M. Shimomura91,‡, J.-G. Shiu92,‡, B. Shwartz6,96,‡,A. Sibidanov165,‡, F. Simon83,113,‡, J. B. Singh101,‡, R. Sinha42,‡, S. Skambraks83,‡, K. Smith145,‡, R. J. Sobie165,‡, A. Soffer116,‡, A. Sokolov38,‡, E. Solovieva77,87,‡, B. Spruck63,‡, S. Staniˇc149,‡, M. Stariˇc109,‡, N. Starinsky147,‡, U. Stolzenberg24,‡, Z. Stottler169,‡, R. Stroili55,‡, J. F. Strube100,‡, J. Stypula93,‡, M. Sumihama25,‡, K. Sumisawa30,26,‡, T. Sumiyoshi121,‡, D. Summers146,‡, W. Sutcliffe48,‡, S. Y. Suzuki30,26,‡, M. Tabata13,‡, M. Takahashi16,‡, M. Takizawa107,‡, U. Tamponi60,‡, J. Tan145,‡, S. Tanaka30,26,‡, K. Tanida2,‡, N. Taniguchi30,‡, Y. Tao137,‡, P. Taras147,‡, G. Tejeda Munoz4,‡, F. Tenchini16,‡, U. Tippawan12,‡, E. Torassa55,‡, K. Trabelsi30,26,‡, T. Tsuboyama30,26,‡, M. Uchida120,‡, S. Uehara30,26,‡, T. Uglov77,87,‡, Y. Unno28,‡, S. Uno30,26,‡, Y. Ushiroda30,26,162,‡, Y. Usov6,96,‡, S. E. Vahsen138,‡, R. van Tonder48,‡, G. Varner138,‡, K. E. Varvell160,‡, A. Vinokurova6,96,‡, L.Vitale61,‡,M.Vos46,‡,A.Vossen17,‡,E.Waheed145,‡,H.Wakeling85,‡,K.Wan162,‡, M.-Z.Wang92,‡, X. L. Wang23,‡, B. Wang135,‡, A. Warburton85,‡, J. Webb145,‡, S. Wehle16,‡, C. Wessel129,‡, J. Wiechczynski93,‡, P. Wieduwilt24,‡, E. Won71,‡, Q. Xu41,‡, X. Xu41,‡, B. D. Yabsley160,‡, S. Yamada30,‡, H. Yamamoto119,‡, W. Yan3,‡, W. Yan154,‡, S. B. Yang71,‡, H. Ye16,‡, I. Yeo70,‡, J. H. Yin41,‡, M. Yonenaga121,‡, T. Yoshinobu94,‡, W. Yuan55,‡, C. Z. Yuan41,‡, Y. Yusa94,‡, S. Zakharov77,87,‡, L. Zani57,‡, M. Zeyrek86,‡, J. Zhang41,‡,Y. Zhang23,‡,Y. Zhang154,‡, X. Zhou3,‡, V. Zhukova77,‡, V. Zhulanov6,96,‡, and A. Zupanc141,109,‡ †Editor. ‡Belle II Collaborator. §Theory or external contributing author., "The Belle II Theory Interface Platform (B2TiP) was created as a physics prospects working group of the Belle II collaboration in June 2014. It offered a platform where theorists and experimentalists could work together to elucidate the potential impacts of the Belle II program, which includes a wide scope of physics topics: B physics, charm, τ , quarkonium physics, electroweak precision measurements, and dark sector searches. It is composed of nine working groups (WGs), which 6/654 Downloaded from https://academic.oup.com/ptep/article-abstract/2019/12/123C01/5685006 by Uniwersytet Slaski Biblioteka Glowna user on 20 February 2020 PTEP 2019, 123C01 E. Kou et al. are coordinated by teams of theory and experiment conveners: WG1, Semileptonic and leptonic B Decays; WG2, Radiative and Electroweak Penguins; WG3, φ1 and φ2 (Time-Dependent CP Violation) Measurements; WG4, φ3 Measurement; WG5, Charmless Hadronic B Decay; WG6, Charm; WG7, Quarkonium(-like); WG8, τ and Low-Multiplicity Processes; WG9, New Physics. We organized workshops twice a year from 2014 until 2016, which moved from KEK in Japan to Europe and the Americas, gathering experts in the respective fields for discussions with Belle II members. One of the goals for B2TiP was to propose so-called “golden and silver channels”: we asked each working group to choose, among numerous possible measurements, those that would have the highest potential impact and to focus on them for the writeup. Theorists scrutinized the role of those measurements in terms of understanding the theory behind them, and estimated the theoretical uncertainties now achievable as well as prospects for the future. For flavor physics, having tight control of hadronic uncertainties is one of the most crucial aspects in the field, and this is considered an important criterion in determining the golden or silver channels. Experimentalists, on the other hand, investigated the expected improvements with data from Belle II. For the channels where the errors are dominated by statistical uncertainties, or where systematic errors are reducible, the errors can decrease rapidly as more data becomes available. The impact of the upgraded performance from Belle II is a crucial element in reducing the uncertainties: we therefore include the latest available studies of the detector efficiency using Monte Carlo simulated events.We list the golden and silver channel table in the introductory chapter, as a guide for the chapters that follow. This book is not a collection of reports based on talks given at the workshops. The working group conveners endeavored to construct a coherent document that can be used by Belle II collaborators, and others in the field of flavor physics, as a reference. Two books of a similar type have been produced in the past: The BaBar Book [1] and The Physics of the B Factories [2]. In order to avoid too much repetition with respect to those references, we refer to them wherever possible for introductory material. We would like to thank the section editors and contributing authors for the many stimulating discussions and their tremendous efforts in bringing the book together." (Preface)
Published: 2019

50. 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

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