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1. A Case of Refractory Pemphigus Herpetiformis with Positive Anti-Desmoglein 1 Antibody: Case Report and Literature Review to Revisit the Disease Characteristics of 167 Cases

Author: Shintaro Higashida, Kentarou Nishimura, Yoriko Muneishi, Tomoaki Sonoda, Masaki Anzai, Takeo Kawasaki, Hiroshi Koga, Norito Ishii, Noritaka Oyama, and Minoru Hasegawa
Subjects: Dermatology, RL1-803
Published: 2024
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2. 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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3. 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

4. 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

5. The JSNS2 detector

Author: Shoichi Hasegawa, R. Ujiie, C. Rott, H. Jeon, M. Taira, J. R. Jordan, A. Zohaib, E. Marzec, M. Y. Pac, K. Nishikawa, Chang Dong Shin, W. Kim, M. Niiyama, Masaharu Nomachi, S. Ajimura, Hidetaka Kinoshita, Dong Ho Moon, S. Lee, Tomoyuki Konno, I. S. Yeo, J. W. Choi, Yoshimi Kasugai, Yuji Yamaguchi, S. Masuda, Y. Hino, Kenji Sakai, M. Jang, Shinichi Sakamoto, Sin Kyu Kang, D. H. Lee, Takeo Kawasaki, Tatsushi Shima, Katsuhiro Haga, T. Maruyama, I. T. Lim, Shin-ichiro Meigo, M. Botran, D. E. Jung, Minfang Yeh, J. Spitz, J. S. Park, T. Dodo, T. Nakano, Junghwan Goh, Toshihiko Hiraiwa, Kentaro Suzuya, Intae Yu, I. Stancu, H. Furuta, Jeong-Sik Choi, S. J. M. Peeters, F. Suekane, Gerrit Roellinghoff, Yorihito Sugaya, Masahide Harada, Eunja Kim, H. I. Jang, S. Monjushiro, C. Yoo, J. Y. Kim, H. Ray, S. Jeon, Myung-Ki Cheoun, J. S. Jang, Sang-Bum Kim, and K. K. Joo
Subjects: Physics, Nuclear and High Energy Physics, Sterile neutrino, Muon, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Neutrino detector, Inverse beta decay, Neutron, Spallation, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Instrumentation, Spallation Neutron Source
Abstract: The JSNS^2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment aims to search for oscillations involving a sterile neutrino in the eV^2 mass-splitting range. The experiment will search for the appearance of electron antineutrinos oscillated from muon antineutrinos. The electron antineutrinos are detected via the inverse beta decay process using a liquid scintillator detector. A 1MW beam of 3 GeV protons incident on a spallation neutron target produces an intense and pulsed neutrino source from pion, muon, and kaon decay at rest. The JSNS^2 detector is located 24 m away from the neutrino source and began operation from June 2020. The detector contains 17 tonnes of gadolinium (Gd) loaded liquid scintillator (LS) in an acrylic vessel, as a neutrino target. It is surrounded by 31 tonnes of unloaded LS in a stainless steel tank. Optical photons produced in LS are viewed by 120 R7081 Hamamatsu 10-inch Photomultiplier Tubes (PMTs). In this paper, we describe the JSNS^2 detector design, construction, and operation., 41 pages, 29 figures
Published: 2021

6. 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

7. Neutrino-Based Tools for Nuclear Verification and Diplomacy in North Korea

Author: Takeo Kawasaki, K. Nakajima, Giorgio Gratta, Wei Wang, James Nikkel, J. P. Coleman, Soo-Bong Kim, K. M. Heeger, John G. Learned, J. Wilhelmi, Liang Zhan, Antonin Vacheret, Patrick Huber, Manfred Lindner, R. Carr, Y. K. Hor, Mikhail Danilov, Seon Hee Seo, F. Suekane, and Yeongduk Kim
Subjects: Physics - Physics and Society, Engineering, Physics - Instrumentation and Detectors, media_common.quotation_subject, FOS: Physical sciences, Physics and Society (physics.soc-ph), 01 natural sciences, Peninsula, 0103 physical sciences, 010306 general physics, Diplomacy, media_common, geography, geography.geographical_feature_category, 010308 nuclear & particles physics, business.industry, General Engineering, International community, Instrumentation and Detectors (physics.ins-det), Neutrino detector, Work (electrical), Software deployment, Systems engineering, Neutrino, business, Research center
Abstract: We present neutrino-based options for verifying that the nuclear reactors at North Korea's Yongbyon Nuclear Research Center are no longer operating or that they are operating in an agreed manner, precluding weapons production. Neutrino detectors may be a mutually agreeable complement to traditional verification protocols because they do not require access inside reactor buildings, could be installed collaboratively, and provide persistent and specific observations. At Yongbyon, neutrino detectors could passively verify reactor shutdowns or monitor power levels and plutonium contents, all from outside the reactor buildings. The monitoring options presented here build on recent successes in basic particle physics. Following a dedicated design study, these tools could be deployed in as little as one year at a reasonable cost. In North Korea, cooperative deployment of neutrino detectors could help redirect a limited number of scientists and engineers from military applications to peaceful technical work in an international community. Opportunities for scientific collaboration with South Korea are especially strong. We encourage policymakers to consider collaborative neutrino projects within a broader program of action toward stability and security on the Korean Peninsula.
Published: 2019

8. 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

9. Reactor rate modulation oscillation analysis with two detectors in Double Chooz

Author: Christopher Wiebusch, A. Oralbaev, M. C. Goodman, J. C. dos Anjos, M. Kuze, Christian Buck, G. Mention, C. Veyssiere, J. Haser, J.V. Dawson, R. Sharankova, D. Navas-Nicolás, A. Onillon, C. Palomares, H. de Kerret, Anatael Cabrera, J. Maricic, S. Appel, A. Givaudan, M. D. Skorokhvatov, A. Stahl, A. Minotti, R. Milincic, B. Reinhold, K. Kale, L. Scola, G. Yang, Bayarto Lubsandorzhiev, V. V. Sinev, E. Blucher, T. Miletic, L. B. Bezrukov, V. Sibille, Thierry Lasserre, P. Novella, T. Sumiyoshi, M. Obolensky, C. Jollet, Lothar Oberauer, J. Reichenbacher, P. Chimenti, A. Meregaglia, H. P. Lima, C. Lastoria, H. Gomez, E. Kemp, Masaki Ishitsuka, J. Martino, Zelimir Djurcic, Marcos Cerrada, M. Vivier, S. V. Sukhotin, S. Schönert, I. Bekman, J. Busenitz, I. Gil-Botella, S. Wagner, T. Abrahão, Tobias Lachenmaier, O. Corpace, J. M. LoSecco, H. Almazan, C. E. Lane, F. Yermia, C. Mariani, Josef Jochum, Takeo Kawasaki, Junpei Maeda, T. J. C. Bezerra, J. C. Barriere, T. Brugière, Stefan Schoppmann, Manfred Lindner, Luis González, A. Hourlier, I. M. Pepe, D. Kryn, M. Kaneda, J. M. López-Castaño, D. Lhuillier, M. Karakac, A.V. Etenko, B. Viaud, E. Chauveau, I. Stancu, H. Furuta, G. Pronost, F. Suekane, L.F.F. Stokes, D. Hellwig, T. Matsubara, Ying Sun, P. Soldin, T. Hara, Ministerio de Economía y Competitividad (España), Abrahao, T, Almazan, H, dos Anjos, J, Appel, S, Barriere, J, Bekman, I, Bezerra, T, Bezrukov, L, Blucher, E, Brugiere, T, Buck, C, Busenitz, J, Cabrera, A, Cerrada, M, Chauveau, E, Chimenti, P, Corpace, O, Dawson, J, Djurcic, Z, Etenko, A, Furuta, H, Gil-Botella, I, Givaudan, A, Gomez, H, Gonzalez, L, Goodman, M, Hara, T, Haser, J, Hellwig, D, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kale, K, Kaneda, M, Karakac, M, Kawasaki, T, Kemp, E, de Kerret, H, Kryn, D, Kuze, M, Lachenmaier, T, Lane, C, Lasserre, T, Lastoria, C, Lhuillier, D, Lima, H, Lindner, M, Lopez-Castano, J, Losecco, J, Lubsandorzhiev, B, Maeda, J, Mariani, C, Maricic, J, Martino, J, Matsubara, T, Mention, G, Meregaglia, A, Miletic, T, Milincic, R, Minotti, A, Navas-Nicolas, D, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Oralbaev, A, Palomares, C, Pepe, I, Pronost, G, Reichenbacher, J, Reinhold, B, Schonert, S, Schoppmann, S, Scola, L, Sharankova, R, Sibille, V, Sinev, V, Skorokhvatov, M, Soldin, P, Stahl, A, Stancu, I, Stokes, L, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Veyssiere, C, Viaud, B, Vivier, M, Wagner, S, Wiebusch, C, Yang, G, Yermia, F, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Neutrino de Champagne Ardenne (LNCA - UMS 3263), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Double Chooz, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), 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), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Normalization (statistics), model [background], Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, nuclear reactor [antineutrino/e], far detector, background: model, FOS: Physical sciences, mixing angle: measured [neutrino], antineutrino/e: nuclear reactor, CHOOZ, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), near detector, Consistency (statistics), 0103 physical sciences, Modulation (music), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Neutrino oscillation, detector [neutrino], Physics, energy: high, neutrino/e: interaction, 010308 nuclear & particles physics, Oscillation, Detector, oscillation [neutrino], Instrumentation and Detectors (physics.ins-det), Neutrino Detectors and Telescopes (experiments), interaction [neutrino/e], Double Chooz, modulation, neutrino: detector, Neutrino detector, 13. Climate action, S067P13, high [energy], lcsh:QC770-798, neutrino: oscillation, neutrino: mixing angle: measured, experimental results
Abstract: A θ oscillation analysis based on the observed antineutrino rates at the Double Chooz far and near detectors for different reactor power conditions is presented. This approach provides a so far unique simultaneous determination of θ and the total background rates without relying on any assumptions on the specific background contributions. The analysis comprises 865 days of data collected in both detectors with at least one reactor in operation. The oscillation results are enhanced by the use of 24.06 days (12.74 days) of reactor-off data in the far (near) detector. The analysis considers the ν¯ interactions up to a visible energy of 8.5 MeV, using the events at higher energies to build a cosmogenic background model considering fast-neutrons interactions and Li decays. The background-model-independent determination of the mixing angle yields sin(2θ) = 0.094 ± 0.017, being the best-fit total background rates fully consistent with the cosmogenic background model. A second oscillation analysis is also performed constraining the total background rates to the cosmogenic background estimates. While the central value is not significantly modified due to the consistency between the reactor-off data and the background estimates, the addition of the background model reduces the uncertainty on θ to 0.015. Along with the oscillation results, the normalization of the anti-neutrino rate is measured with a precision of 0.86%, reducing the 1.43% uncertainty associated to the expectation. [Figure not available: see fulltext.], We acknowledge the support of the CEA, CNRS/IN2P3, the computer centre CC-IN2P3 and LabEx UnivEarthS in France; the Max Planck Gesellschaft, the Deutsche Forschungsgemeinschaft DFG, the Transregional Collaborative Research Center TR27, the excellence cluster “Origin and Structure of the Universe” and the Maier-Leibnitz-Laboratorium Garching in Germany; the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT) and the Japan Society for the Promotion of Science (JSPS) in Japan; the Ministerio de Economía, Industria y Competitividad (SEIDI-MINECO) under grants FPA2016-77347-C2-1-P and MdM-2015-0509 in Spain; the Department of Energy and the National Science Foundation and Department of Energy in the United States; the Russian Academy of Science, the Kurchatov Institute and the Russian Foundation for Basic Research (RFBR) in Russia; the Brazilian Ministry of Science, Technology and Innovation (MCTI), the Financiadora de Estudos e Projetos (FINEP), the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), the São Paulo Research Foundation (FAPESP) and the Brazilian Network for High Energy Physics (RENAFAE) in Brazil.
Published: 2021

10. Search for signatures of sterile neutrinos with Double Chooz

Author: J. M. López-Casta no, T. Brugière, B. Viaud, F. Yermia, E. Blucher, T. Miletic, P. Novella, T. Sumiyoshi, M. Obolensky, H. de Kerret, A.V. Etenko, A. Hourlier, M. Kuze, Christian Buck, A. Stahl, A. Onillon, A. Givaudan, Anatael Cabrera, M. Karakac, M. D. Skorokhvatov, P. Chimenti, D. Kryn, J. M. LoSecco, G. Mention, J. Maricic, S. Appel, K. Kale, J. Martino, Takeo Kawasaki, Marcos Cerrada, I. Stancu, S. V. Sukhotin, J. V. Dawson, H. Almazan, C. E. Lane, H. Furuta, A. Minotti, Diana Navas-Nicolas, T. Abrahão, Thierry Lasserre, R. Sharankova, O. Corpace, G. Yang, Tobias Lachenmaier, C. Mariani, Zelimir Djurcic, C. Palomares, G. Pronost, Masaki Ishitsuka, H. P. Lima, Josef Jochum, B. Reinhold, M. Vivier, A. Meregaglia, S. Schönert, C. Jollet, F. Suekane, L.F.F. Stokes, C. Lastoria, C. Veyssiere, L. Heuermann, J. Busenitz, J. Haser, L. Scola, R. Milincic, Christopher Wiebusch, V. V. Sinev, E. Kemp, M. C. Goodman, J. C. dos Anjos, S. J. Wagner, Junpei Maeda, I. Bekman, A. Oralbaev, Luis González, L. B. Bezrukov, Manfred Lindner, V. Sibille, J. Reichenbacher, T. J. C. Bezerra, J. C. Barriere, Ying Sun, P. Soldin, T. Hara, D. Hellwig, H. Gómez, Stefan Schoppmann, I. M. Pepe, E. Chauveau, T. Matsubara, M. Kaneda, Lothar Oberauer, BayarJon Paul Lubsandorzhiev, I. Gil-Botella, D. Lhuillier, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Neutrino de Champagne Ardenne (LNCA - UMS 3263), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), 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), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Double Chooz, Abrahao, T, Almazan, H, dos Anjos, J, Appel, S, Barriere, J, Bekman, I, Bezerra, T, Bezrukov, L, Blucher, E, Brugiere, T, Buck, C, Busenitz, J, Cabrera, A, Cerrada, M, Chauveau, E, Chimenti, P, Corpace, O, Dawson, J, Djurcic, Z, Etenko, A, Furuta, H, Gil-Botella, I, Givaudan, A, Gomez, H, Gonzalez, L, Goodman, M, Hara, T, Haser, J, Hellwig, D, Heuermann, L, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kale, K, Kaneda, M, Karakac, M, Kawasaki, T, Kemp, E, de Kerret, H, Kryn, D, Kuze, M, Lachenmaier, T, Lane, C, Lasserre, T, Lastoria, C, Lhuillier, D, Lima Jr, H, Lindner, M, Lopez-Casta no, J, Losecco, J, Lubsandorzhiev, B, Maeda, J, Mariani, C, Maricic, J, Martino, J, Matsubara, T, Mention, G, Meregaglia, A, Miletic, T, Milincic, R, Minotti, A, Navas-Nicolas, D, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Oralbaev, A, Palomares, C, Pepe, I, Pronost, G, Reichenbacher, J, Reinhold, B, Schonert, S, Schoppmann, S, Scola, L, Sharankova, R, Sibille, V, Sinev, V, Skorokhvatov, M, Soldin, P, Stahl, A, Stancu, I, Stokes, L, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Veyssiere, C, Viaud, B, Vivier, M, Wagner, S, Wiebusch, C, Yang, G, Yermia, F, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), 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), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: neutrino: signature, Sterile neutrino, Particle physics, data analysis method, Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), Model prediction, 62F03 (Primary), 62P35, 65C60 (Secondary), neutrino: mass difference, FOS: Physical sciences, Neutrino Oscillation, QC770-798, Electron, CHOOZ, Astrophysics, antineutrino/e, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), statistical analysis, Nuclear and particle physics. Atomic energy. Radioactivity, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Neutrino oscillation, Engineering (miscellaneous), Mixing (physics), Physics, 010308 nuclear & particles physics, Reactor, Instrumentation and Detectors (physics.ins-det), Function (mathematics), neutrino: sterile, neutrino: mixing angle, neutrino: nuclear reactor, mass dependence, QB460-466, Double Chooz, neutrino: flavor, Antineutrino, neutrino: oscillation, Neutrino, neutrino: mixing, experimental results
Abstract: We present a search for signatures of neutrino mixing of electron anti-neutrinos with additional hypothetical sterile neutrino flavors using the Double Chooz experiment. The search is based on data from 5 years of operation of Double Chooz, including 2 years in the two-detector configuration. The analysis is based on a profile likelihood, i.e.\ comparing the data to the model prediction of disappearance in a data-to-data comparison of the two respective detectors. The analysis is optimized for a model of three active and one sterile neutrino. It is sensitive in the typical mass range $5 \cdot 10^{-3} $ eV$^2 \lesssim \Delta m^2_{41} \lesssim 3\cdot 10^{-1} $ eV$^2$ for mixing angles down to $\sin^2 2\theta_{14} \gtrsim 0.02$. No significant disappearance additionally to the conventional disappearance related to $\theta_{13} $ is observed and correspondingly exclusion bounds on the sterile mixing parameter $\theta_{14} $ as function of $ \Delta m^2_{41} $ are obtained., Comment: accepted for publication by EPJC
Published: 2021

11. Overview of the Medium and High Frequency Telescopes of the LiteBIRD satellite mission

Author: Ludovic Montier, Baptiste Mot, Paolo de Bernardis, Bruno Maffei, Giampaolo Pisano, Fabio Columbro, Jon E. Gudmundsson, Sophie Henrot-Versillé, Luca Lamagna, Joshua Montgomery, Thomas Prouvé, Megan Russell, Giorgio Savini, Samantha Stever, Keith L. Thompson, Masahiro Tsujimoto, Carole Tucker, Benjamin Westbrook, Peter A. Ade, Alexandre Adler, Erwan Allys, Kam Arnold, Didier Auguste, Jonathan Aumont, Ragnhild Aurlien, Jason Austermann, Carlo Baccigalupi, Anthony J. Banday, Ranajoy Banerji, Rita B. Barreiro, Soumen Basak, Jim Beall, Dominic Beck, Shawn Beckman, Juan Bermejo, Marco Bersanelli, Julien Bonis, Julian Borrill, Francois Boulanger, Sophie Bounissou, Maksym Brilenkov, Michael Brown, Martin Bucher, Erminia Calabrese, Paolo Campeti, Alessandro Carones, Francisco J. Casas, Anthony Challinor, Victor Chan, Kolen Cheung, Yuji Chinone, Jean F. Cliche, Loris Colombo, Javier Cubas, Ari Cukierman, David Curtis, Giuseppe D'Alessandro, Nadia Dachlythra, Marco De Petris, Clive Dickinson, Patricia Diego-Palazuelos, Matt Dobbs, Tadayasu Dotani, Lionel Duband, Shannon Duff, Jean M. Duval, Ken Ebisawa, Tucker Elleflot, Hans K. Eriksen, Josquin Errard, Thomas Essinger-Hileman, Fabio Finelli, Raphael Flauger, Cristian Franceschet, Unni Fuskeland, Mathew Galloway, Ken Ganga, Jian R. Gao, Ricardo Genova-Santos, Martina Gerbino, Massimo Gervasi, Tommaso Ghigna, Eirik Gjerløw, Marcin L. Gradziel, Julien Grain, Frank Grupp, Alessandro Gruppuso, Tijmen de Haan, Nils W. Halverson, Peter Hargrave, Takashi Hasebe, Masaya Hasegawa, Makoto Hattori, Masashi Hazumi, Daniel Herman, Diego Herranz, Charles A. Hill, Gene Hilton, Yukimasa Hirota, Eric Hivon, Renee A. Hlozek, Yurika Hoshino, Elena de la Hoz, Johannes Hubmayr, Kiyotomo Ichiki, Teruhito Iida, Hiroaki Imada, Kosei Ishimura, Hirokazu Ishino, Greg Jaehnig, Tooru Kaga, Shingo Kashima, Nobuhiko Katayama, Akihiro Kato, Takeo Kawasaki, Reijo Keskitalo, Theodore Kisner, Yohei Kobayashi, Nozomu Kogiso, Alan Kogut, Kazunori Kohri, Eiichiro Komatsu, Kunimoto Komatsu, Kuniaki Konishi, Nicoletta Krachmalnicoff, Ingo Kreykenbohm, Chao-Lin L. Kuo, Akihiro Kushino, Jeff V. Lanen, Massimiliano Lattanzi, Adrian T. Lee, Clément Leloup, François Levrier, Eric Linder, Thibaut Louis, Gemma Luzzi, Thierry Maciaszek, Davide Maino, Muneyoshi Maki, Stefano Mandelli, Enrique Martinez-Gonzalez, Silvia Masi, Tomotake Matsumura, Aniello Mennella, Marina Migliaccio, Yuto Minami, Kazuhisa Mitsuda, Gianluca Morgante, Yasuhiro Murata, John A. Murphy, Makoto Nagai, Yuya Nagano, Taketo Nagasaki, Ryo Nagata, Shogo Nakamura, Toshiya Namikawa, Paolo Natoli, Simran Nerval, Toshiyuki Nishibori, Haruki Nishino, Créidhe O'Sullivan, Hideo Ogawa, Hiroyuki Ogawa, Shugo Oguri, Hiroyuki Ohsaki, Izumi S. Ohta, Norio Okada, Nozomi Okada, Luca Pagano, Alessandro Paiella, Daniela Paoletti, Guillaume Patanchon, Julien Peloton, Francesco Piacentini, Gianluca Polenta, Davide Poletti, Giuseppe Puglisi, Damien Rambaud, Christopher Raum, Sabrina Realini, Martin Reinecke, Mathieu Remazeilles, Alessia Ritacco, Gilles Roudil, Jose A. Rubino-Martin, Haruyuki Sakurai, Yuki Sakurai, Maura Sandri, Manami Sasaki, Douglas Scott, Joseph Seibert, Yutaro Sekimoto, Blake Sherwin, Keisuke Shinozaki, Maresuke Shiraishi, Peter Shirron, Giovanni Signorelli, Graeme Smecher, Radek Stompor, Hajime Sugai, Shinya Sugiyama, Aritoki Suzuki, Junichi Suzuki, Trygve L. Svalheim, Eric Switzer, Ryota Takaku, Hayato Takakura, Satoru Takakura, Yusuke Takase, Youichi Takeda, Andrea Tartari, Ellen Taylor, Yutaka Terao, Harald Thommesen, Ben Thorne, Takayuki Toda, Maurizio Tomasi, Mayu Tominaga, Neil Trappe, Matthieu Tristram, Masatoshi Tsuji, Joe Ullom, Gerard Vermeulen, Patricio Vielva, Fabrizio Villa, Michael Vissers, Nicola Vittorio, Ingunn Wehus, Jochen Weller, Joern Wilms, Berend Winter, Edward J. Wollack, Noriko Y. Yamasaki, Tetsuya Yoshida, Junji Yumoto, Mario Zannoni, Andrea Zonca, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), 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), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de physique de l'ENS - ENS Paris (LPENS (UMR_8023)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre National d’Études Spatiales [Paris] (CNES), LiteBIRD, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission, European Research Council, Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Laboratoire de physique de l'ENS - ENS Paris (LPENS), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Département de Physique de l'ENS-PSL, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Département des Systèmes Basses Températures (DSBT ), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Laboratoire des Cryoréfrigérateurs et Cryogénie Spatiale (LCCS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Lystrup, Makenzie, Montier, L, Mot, B, de Bernardis, P, Maffei, B, Pisano, G, Columbro, F, Gudmundsson, J, Henrot-Versillé, S, Lamagna, L, Montgomery, J, Prouvé, T, Russell, M, Savini, G, Stever, S, Thompson, K, Tsujimoto, M, Tucker, C, Westbrook, B, Ade, P, Adler, A, Allys, E, Arnold, K, Auguste, D, Aumont, J, Aurlien, R, Austermann, J, Baccigalupi, C, Banday, A, Banerji, R, Barreiro, R, Basak, S, Beall, J, Beck, D, Beckman, S, Bermejo, J, Bersanelli, M, Bonis, J, Borrill, J, Boulanger, F, Bounissou, S, Brilenkov, M, Brown, M, Bucher, M, Calabrese, E, Campeti, P, Carones, A, Casas, F, Challinor, A, Chan, V, Cheung, K, Chinone, Y, Cliche, J, Colombo, L, Cubas, J, Cukierman, A, Curtis, D, D'Alessandro, G, Dachlythra, N, De Petris, M, Dickinson, C, Diego-Palazuelos, P, Dobbs, M, Dotani, T, Duband, L, Duff, S, Duval, J, Ebisawa, K, Elleflot, T, Eriksen, H, Errard, J, Essinger-Hileman, T, Finelli, F, Flauger, R, Franceschet, C, Fuskeland, U, Galloway, M, Ganga, K, Gao, J, Genova-Santos, R, Gerbino, M, Gervasi, M, Ghigna, T, Gjerløw, E, Gradziel, M, Grain, J, Grupp, F, Gruppuso, A, de Haan, T, Halverson, N, Hargrave, P, Hasebe, T, Hasegawa, M, Hattori, M, Hazumi, M, Herman, D, Herranz, D, Hill, C, Hilton, G, Hirota, Y, Hivon, E, Hlozek, R, Hoshino, Y, de la Hoz, E, Hubmayr, J, Ichiki, K, Iida, T, Imada, H, Ishimura, K, Ishino, H, Jaehnig, G, Kaga, T, Kashima, S, Katayama, N, Kato, A, Kawasaki, T, Keskitalo, R, Kisner, T, Kobayashi, Y, Kogiso, N, Kogut, A, Kohri, K, Komatsu, E, Komatsu, K, Konishi, K, Krachmalnicoff, N, Kreykenbohm, I, Kuo, C, Kushino, A, Lanen, J, Lattanzi, M, Lee, A, Leloup, C, Levrier, F, Linder, E, Louis, T, Luzzi, G, Maciaszek, T, Maino, D, Maki, M, Mandelli, S, Martinez-Gonzalez, E, Masi, S, Matsumura, T, Mennella, A, Migliaccio, M, Minami, Y, Mitsuda, K, Morgante, G, Murata, Y, Murphy, J, Nagai, M, Nagano, Y, Nagasaki, T, Nagata, R, Nakamura, S, Namikawa, T, Natoli, P, Nerval, S, Nishibori, T, Nishino, H, O'Sullivan, C, Ogawa, H, Oguri, S, Ohsaki, H, Ohta, I, Okada, N, Pagano, L, Paiella, A, Paoletti, D, Patanchon, G, Peloton, J, Piacentini, F, Polenta, G, Poletti, D, Puglisi, G, Rambaud, D, Raum, C, Realini, S, Reinecke, M, Remazeilles, M, Ritacco, A, Roudil, G, Rubino-Martin, J, Sakurai, H, Sakurai, Y, Sandri, M, Sasaki, M, Scott, D, Seibert, J, Sekimoto, Y, Sherwin, B, Shinozaki, K, Shiraishi, M, Shirron, P, Signorelli, G, Smecher, G, Stompor, R, Sugai, H, Sugiyama, S, Suzuki, A, Suzuki, J, Svalheim, T, Switzer, E, Takaku, R, Takakura, H, Takakura, S, Takase, Y, Takeda, Y, Tartari, A, Taylor, E, Terao, Y, Thommesen, H, Thorne, B, Toda, T, Tomasi, M, Tominaga, M, Trappe, N, Tristram, M, Tsuji, M, Ullom, J, Vermeulen, G, Vielva, P, Villa, F, Vissers, M, Vittorio, N, Wehus, I, Weller, J, Wilms, J, Winter, B, Wollack, E, Yamasaki, N, Yoshida, T, Yumoto, J, Zannoni, M, Zonca, A, and Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Sorbonne Université (SU)-École normale supérieure - Paris (ENS Paris)
Subjects: cosmological model, experimental methods, detector: satellite, Cosmic microwave background, cosmic background radiation: polarization, detector: noise, magnetic field, 02 engineering and technology, LiteBIRD, cosmic microwave background, polarization measurements, space telescopes, 7. Clean energy, 01 natural sciences, law.invention, law, detector: calibration, media_common, Physics, conductivity: thermal, Settore FIS/05, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, 021001 nanoscience & nanotechnology, Polarization (waves), inflation: model, experimental equipment, B-mode, cosmic radiation, cryogenics, Astrophysics::Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, 0210 nano-technology, cosmic background radiation: detector, Astrophysics - Cosmology and Nongalactic Astrophysics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), lens, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, FOS: Physical sciences, LiteBIRD, Polarization measurements, Space telescopes, Astrophysics::Cosmology and Extragalactic Astrophysics, bolometer: superconductivity, frequency: high, Radio spectrum, tensor scalar: ratio, 010309 optics, Telescope, FIS/05 - ASTRONOMIA E ASTROFISICA, Settore FIS/05 - Astronomia e Astrofisica, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], numerical calculations, Instrumentation and Methods for Astrophysics (astro-ph.IM), detector: angular resolution, Astrophysics::Galaxy Astrophysics, Gravitational wave, synchrotron radiation, gravitational radiation: primordial, Astronomy, Physics::History of Physics, optics, detector: sensitivity, 13. Climate action, Sky, Satellite, temperature: stability, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online.-- et al., LiteBIRD is a JAXA-led Strategic Large-Class mission designed to search for the existence of the primordial gravitational waves produced during the inflationary phase of the Universe, through the measurements of their imprint onto the polarization of the cosmic microwave background (CMB). These measurements, requiring unprecedented sensitivity, will be performed over the full sky, at large angular scales, and over 15 frequency bands from 34 GHz to 448 GHz. The LiteBIRD instruments consist of three telescopes, namely the Low-, Medium-and High-Frequency Telescope (respectively LFT, MFT and HFT). We present in this paper an overview of the design of the Medium-Frequency Telescope (89{224 GHz) and the High-Frequency Telescope (166{448 GHz), the so-called MHFT, under European responsibility, which are two cryogenic refractive telescopes cooled down to 5 K. They include a continuous rotating half-wave plate as the first optical element, two high-density polyethylene (HDPE) lenses and more than three thousand transition-edge sensor (TES) detectors cooled to 100 mK. We provide an overview of the concept design and the remaining specific challenges that we have to face in order to achieve the scientific goals of LiteBIRD., This work is supported in Japan by ISAS/JAXA for Pre-Phase A2 studies, by the acceleration program of JAXA research and development directorate, by the World Premier International Research Center Initiative (WPI) of MEXT, by the JSPS Core-to-Core Program of A. Advanced Research Networks, and by JSPS KAKENHI Grant Numbers JP15H05891, JP17H01115, and JP17H01125. The Italian LiteBIRD phase A contribution is supported by the Italian Space Agency (ASI Grants No. 2020-9-HH.0 and 2016-24-H.1-2018), the National Institute for Nuclear Physics (INFN) and the National Institute for Astrophysics (INAF). The French LiteBIRD phase A contribution is supported by the Centre National d’Etudes Spatiale (CNES), by the Centre National de la Recherche Scientifique (CNRS), and by the Commissariat a l’Energie Atomique (CEA). The Canadian contribution is supported by the Canadian Space Agency. The US contribution is supported by NASA grant no. 80NSSC18K0132. Norwegian participation in LiteBIRD is supported by the Research Council of Norway (Grant No. 263011). The Spanish LiteBIRD phase A contribution is supported by the Spanish Agencia Estatal de Investigacion (AEI), project refs. PID2019-110610RB-C21 and AYA2017-84185-P. Funds that support the Swedish contributions come from the Swedish National Space Agency (SNSA/Rymdstyrelsen) and the Swedish Research Council (Reg. no. 2019-03959). The German participation in LiteBIRD is supported in part by the Excellence Cluster ORIGINS, which is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy (Grant No. EXC-2094 - 390783311). This research used resources of the Central Computing System owned and operated by the Computing Research Center at KEK, as well as resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy. European collaborators acknowledge support from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement Nos. 772253, 819478, and 849169). The European Space Agency (ESA) has led a Concurrent Design Facility study, focused on the MHFT and Sub-Kelvin coolers, and funded Technology Research Programmes for “Large radii Half-Wave Plate (HWP) development” (contract number: 4000123266/18/NL/AF) and for the ‘Development of Large Anti-Reflection Coated Lenses for Passive (Sub)Millimeter-Wave Science Instruments” (contract number: 4000128517/19/NL/AS).
Published: 2020

12. LiteBIRD: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization

Author: Masashi Hazumi, Peter A. Ade, Alexandre Adler, Erwan Allys, Kam Arnold, Didier Auguste, Jonathan Aumont, Ragnhild Aurlien, Jason Austermann, Carlo Baccigalupi, Anthony J. Banday, R. Banjeri, Rita B. Barreiro, Soumen Basak, Jim Beall, Dominic Beck, Shawn Beckman, Juan Bermejo, Paolo de Bernardis, Marco Bersanelli, Julien Bonis, Julian Borrill, Francois Boulanger, Sophie Bounissou, Maksym Brilenkov, Michael Brown, Martin Bucher, Erminia Calabrese, Paolo Campeti, Alessandro Carones, Francisco J. Casas, Anthony Challinor, Victor Chan, Kolen Cheung, Yuji Chinone, Jean F. Cliche, Loris Colombo, Fabio Columbro, Javier Cubas, Ari Cukierman, David Curtis, Giuseppe D'Alessandro, Nadia Dachlythra, Marco De Petris, Clive Dickinson, Patricia Diego-Palazuelos, Matt Dobbs, Tadayasu Dotani, Lionel Duband, Shannon Duff, Jean M. Duval, Ken Ebisawa, Tucker Elleflot, Hans K. Eriksen, Josquin Errard, Thomas Essinger-Hileman, Fabio Finelli, Raphael Flauger, Cristian Franceschet, Unni Fuskeland, Mathew Galloway, Ken Ganga, Jian R. Gao, Ricardo Genova-Santos, Martina Gerbino, Massimo Gervasi, Tommaso Ghigna, Eirik Gjerløw, Marcin L. Gradziel, Julien Grain, Frank Grupp, Alessandro Gruppuso, Jon E. Gudmundsson, Tijmen de Haan, Nils W. Halverson, Peter Hargrave, Takashi Hasebe, Masaya Hasegawa, Makoto Hattori, Sophie Henrot-Versillé, Daniel Herman, Diego Herranz, Charles A. Hill, Gene Hilton, Yukimasa Hirota, Eric Hivon, Renee A. Hlozek, Yurika Hoshino, Elena de la Hoz, Johannes Hubmayr, Kiyotomo Ichiki, Teruhito Iida, Hiroaki Imada, Kosei Ishimura, Hirokazu Ishino, Greg Jaehnig, Tooru Kaga, Shingo Kashima, Nobuhiko Katayama, Akihiro Kato, Takeo Kawasaki, Reijo Keskitalo, Theodore Kisner, Yohei Kobayashi, Nozomu Kogiso, Alan Kogut, Kazunori Kohri, Eiichiro Komatsu, Kunimoto Komatsu, Kuniaki Konishi, Nicoletta Krachmalnicoff, Ingo Kreykenbohm, Chao-Lin L. Kuo, Akihiro Kushino, Luca Lamagna, Jeff V. Lanen, Massimiliano Lattanzi, Adrian T. Lee, Clément Leloup, François Levrier, Eric Linder, Thibaut Louis, Gemma Luzzi, Thierry Maciaszek, Bruno Maffei, Davide Maino, Muneyoshi Maki, Stefano Mandelli, Enrique Martinez-Gonzalez, Silvia Masi, Tomotake Matsumura, Aniello Mennella, Marina Migliaccio, Yuto Minami, Kazuhisa Mitsuda, Joshua Montgomery, Ludovic Montier, Gianluca Morgante, Baptiste Mot, Yasuhiro Murata, John A. Murphy, Makoto Nagai, Yuya Nagano, Taketo Nagasaki, Ryo Nagata, Shogo Nakamura, Toshiya Namikawa, Paolo Natoli, Simran Nerval, Toshiyuki Nishibori, Haruki Nishino, Fabio Noviello, Créidhe O'Sullivan, Hideo Ogawa, Hiroyuki Ogawa, Shugo Oguri, Hiroyuki Ohsaki, Izumi S. Ohta, Norio Okada, Nozomi Okada, Luca Pagano, Alessandro Paiella, Daniela Paoletti, Guillaume Patanchon, Julien Peloton, Francesco Piacentini, Giampaolo Pisano, Gianluca Polenta, Davide Poletti, Thomas Prouvé, Giuseppe Puglisi, Damien Rambaud, Christopher Raum, Sabrina Realini, Martin Reinecke, Mathieu Remazeilles, Alessia Ritacco, Gilles Roudil, Jose A. Rubino-Martin, Megan Russell, Haruyuki Sakurai, Yuki Sakurai, Maura Sandri, Manami Sasaki, Giorgio Savini, Douglas Scott, Joseph Seibert, Yutaro Sekimoto, Blake Sherwin, Keisuke Shinozaki, Maresuke Shiraishi, Peter Shirron, Giovanni Signorelli, Graeme Smecher, Samantha Stever, Radek Stompor, Hajime Sugai, Shinya Sugiyama, Aritoki Suzuki, Junichi Suzuki, Trygve L. Svalheim, Eric Switzer, Ryota Takaku, Hayato Takakura, Satoru Takakura, Yusuke Takase, Youichi Takeda, Andrea Tartari, Ellen Taylor, Yutaka Terao, Harald Thommesen, Keith L. Thompson, Ben Thorne, Takayuki Toda, Maurizio Tomasi, Mayu Tominaga, Neil Trappe, Matthieu Tristram, Masatoshi Tsuji, Masahiro Tsujimoto, Carole Tucker, Joe Ullom, Gerard Vermeulen, Patricio Vielva, Fabrizio Villa, Michael Vissers, Nicola Vittorio, Ingunn Wehus, Jochen Weller, Benjamin Westbrook, Joern Wilms, Berend Winter, Edward J. Wollack, Noriko Y. Yamasaki, Tetsuya Yoshida, Junji Yumoto, Mario Zannoni, Andrea Zonca, Astrophysique, Laboratoire de physique de l'ENS - ENS Paris (LPENS), Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Sorbonne Université (SU)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Sorbonne Université (SU)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), 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), Université Paris-Sud - Paris 11 (UP11), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre National d’Études Spatiales [Paris] (CNES), Centre National d'Études Spatiales [Toulouse] (CNES), Institut Néel (NEEL), 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), LiteBIRD, Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Département de Physique de l'ENS-PSL, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Département de Physique de l'ENS-PSL, Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Département des Systèmes Basses Températures (DSBT ), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Laboratoire des Cryoréfrigérateurs et Cryogénie Spatiale (LCCS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Hélium : du fondamental aux applications (NEEL - HELFA), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission, Laboratoire de physique de l'ENS - ENS Paris (LPENS (UMR_8023)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Lystrup, Makenzie, Hazumi, M, Ade, P, Adler, A, Allys, E, Arnold, K, Auguste, D, Aumont, J, Aurlien, R, Austermann, J, Baccigalupi, C, Banday, A, Banjeri, R, Barreiro, R, Basak, S, Beall, J, Beck, D, Beckman, S, Bermejo, J, de Bernardis, P, Bersanelli, M, Bonis, J, Borrill, J, Boulanger, F, Bounissou, S, Brilenkov, M, Brown, M, Bucher, M, Calabrese, E, Campeti, P, Carones, A, Casas, F, Challinor, A, Chan, V, Cheung, K, Chinone, Y, Cliche, J, Colombo, L, Columbro, F, Cubas, J, Cukierman, A, Curtis, D, D'Alessandro, G, Dachlythra, N, De Petris, M, Dickinson, C, Diego-Palazuelos, P, Dobbs, M, Dotani, T, Duband, L, Duff, S, Duval, J, Ebisawa, K, Elleflot, T, Eriksen, H, Errard, J, Essinger-Hileman, T, Finelli, F, Flauger, R, Franceschet, C, Fuskeland, U, Galloway, M, Ganga, K, Gao, J, Genova-Santos, R, Gerbino, M, Gervasi, M, Ghigna, T, Gjerløw, E, Gradziel, M, Grain, J, Grupp, F, Gruppuso, A, Gudmundsson, J, de Haan, T, Halverson, N, Hargrave, P, Hasebe, T, Hasegawa, M, Hattori, M, Henrot-Versillé, S, Herman, D, Herranz, D, Hill, C, Hilton, G, Hirota, Y, Hivon, E, Hlozek, R, Hoshino, Y, de la Hoz, E, Hubmayr, J, Ichiki, K, Iida, T, Imada, H, Ishimura, K, Ishino, H, Jaehnig, G, Kaga, T, Kashima, S, Katayama, N, Kato, A, Kawasaki, T, Keskitalo, R, Kisner, T, Kobayashi, Y, Kogiso, N, Kogut, A, Kohri, K, Komatsu, E, Komatsu, K, Konishi, K, Krachmalnicoff, N, Kreykenbohm, I, Kuo, C, Kushino, A, Lamagna, L, Lanen, J, Lattanzi, M, Lee, A, Leloup, C, Levrier, F, Linder, E, Louis, T, Luzzi, G, Maciaszek, T, Maffei, B, Maino, D, Maki, M, Mandelli, S, Martinez-Gonzalez, E, Masi, S, Matsumura, T, Mennella, A, Migliaccio, M, Minami, Y, Mitsuda, K, Montgomery, J, Montier, L, Morgante, G, Mot, B, Murata, Y, Murphy, J, Nagai, M, Nagano, Y, Nagasaki, T, Nagata, R, Nakamura, S, Namikawa, T, Natoli, P, Nerval, S, Nishibori, T, Nishino, H, Noviello, F, O'Sullivan, C, Ogawa, H, Oguri, S, Ohsaki, H, Ohta, I, Okada, N, Pagano, L, Paiella, A, Paoletti, D, Patanchon, G, Peloton, J, Piacentini, F, Pisano, G, Polenta, G, Poletti, D, Prouvé, T, Puglisi, G, Rambaud, D, Raum, C, Realini, S, Reinecke, M, Remazeilles, M, Ritacco, A, Roudil, G, Rubino-Martin, J, Russell, M, Sakurai, H, Sakurai, Y, Sandri, M, Sasaki, M, Savini, G, Scott, D, Seibert, J, Sekimoto, Y, Sherwin, B, Shinozaki, K, Shiraishi, M, Shirron, P, Signorelli, G, Smecher, G, Stever, S, Stompor, R, Sugai, H, Sugiyama, S, Suzuki, A, Suzuki, J, Svalheim, T, Switzer, E, Takaku, R, Takakura, H, Takakura, S, Takase, Y, Takeda, Y, Tartari, A, Taylor, E, Terao, Y, Thommesen, H, Thompson, K, Thorne, B, Toda, T, Tomasi, M, Tominaga, M, Trappe, N, Tristram, M, Tsuji, M, Tsujimoto, M, Tucker, C, Ullom, J, Vermeulen, G, Vielva, P, Villa, F, Vissers, M, Vittorio, N, Wehus, I, Weller, J, Westbrook, B, Wilms, J, Winter, B, Wollack, E, Yamasaki, N, Yoshida, T, Yumoto, J, Zannoni, M, and Zonca, A
Subjects: cosmological model, experimental methods, detector: satellite, Physics beyond the Standard Model, Cosmic microwave background, LiteBIRD, cosmic inflation, cosmic microwave background, B-mode polarization, primordial gravi- tational waves, quantum gravity, space telescope, cosmic background radiation: polarization, detector: noise, 02 engineering and technology, 7. Clean energy, 01 natural sciences, expansion: multipole, Cosmology, General Relativity and Quantum Cosmology, B-mode: primordial, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), general relativity, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], B-mode polarization, media_common, Physics, new physics, quantum mechanics, Astrophysics::Instrumentation and Methods for Astrophysics, 021001 nanoscience & nanotechnology, BICEP, inflation: model, High Energy Physics - Phenomenology, error: statistical, experimental equipment, cryogenics, power spectrum: angular dependence, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], readout, Astrophysics::Earth and Planetary Astrophysics, dust, control system, 0210 nano-technology, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, cosmic microwave background, Cosmology and Nongalactic Astrophysics (astro-ph.CO), satellite: Planck, cosmic inflation, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, primordial gravi- tational waves, Cosmic background radiation, space telescope, Lagrangian point, FOS: Physical sciences, LiteBIRD, General Relativity and Quantum Cosmology (gr-qc), Astrophysics::Cosmology and Extragalactic Astrophysics, polarization: sensitivity, 010309 optics, FIS/05 - ASTRONOMIA E ASTROFISICA, Settore FIS/05 - Astronomia e Astrofisica, gravitation: lens, 0103 physical sciences, ionization, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], cosmic background radiation: power spectrum, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics::Galaxy Astrophysics, Inflation (cosmology), synchrotron radiation, primordial gravitational waves, gravitational radiation: primordial, Astronomy, calibration, Physics::History of Physics, recombination, detector: sensitivity, angular resolution, Sky, quantum gravity, gravitational radiation: emission, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Satellite, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], experimental results
Abstract: Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online.-- et al., LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and fundamental physics. JAXA selected LiteBIRD in May 2019 as a strategic large-class (L-class) mission, with its expected launch in the late 2020s using JAXA’s H3 rocket. LiteBIRD plans to map the cosmic microwave background (CMB) polarization over the full sky with unprecedented precision. Its main scientific objective is to carry out a definitive search for the signal from cosmic inflation, either making a discovery or ruling out well-motivated inflationary models. The measurements of LiteBIRD will also provide us with an insight into the quantum nature of gravity and other new physics beyond the standard models of particle physics and cosmology. To this end, LiteBIRD will perform full-sky surveys for three years at the Sun-Earth Lagrangian point L2 for 15 frequency bands between 34 and 448 GHz with three telescopes, to achieve a total sensitivity of 2.16 µK-arcmin with a typical angular resolution of 0.5◦ at 100 GHz. We provide an overview of the LiteBIRD project, including scientific objectives, mission requirements, top-level system requirements, operation concept, and expected scientific outcomes., This work is supported in Japan by ISAS/JAXA for Pre-Phase A2 studies, by the acceleration program of JAXA research and development directorate, by the World Premier International Research Center Initiative (WPI) of MEXT, by the JSPS Core-to-Core Program of A. Advanced Research Networks, and by JSPS KAKENHI Grant Numbers JP15H05891, JP17H01115, and JP17H01125. The Italian LiteBIRD phase A contribution is supported by the Italian Space Agency (ASI Grants No. 2020-9-HH.0 and 2016-24-H.1-2018), the National Institute for Nuclear Physics (INFN) and the National Institute for Astrophysics (INAF). The French LiteBIRD phase A contribution is supported by the Centre National d’Etudes Spatiale (CNES), by the Centre National de la Recherche Scientifique (CNRS), and by the Commissariat a l’Energie Atomique (CEA). The Canadian contribution is supported by the Canadian Space Agency. The US contribution is supported by NASA grant no. 80NSSC18K0132. Norwegian participation in LiteBIRD is supported by the Research Council of Norway (Grant No. 263011). The Spanish LiteBIRD phase A contribution is supported by the Spanish Agencia Estatal de Investigacion (AEI), project refs. PID2019-110610RB-C21 and AYA2017-84185-P. Funds that support the Swedish contributions come from the Swedish National Space Agency (SNSA/Rymdstyrelsen) and the Swedish Research Council (Reg. no. 2019-03959). The German participation in LiteBIRD is supported in part by the Excellence Cluster ORIGINS, which is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy (Grant No. EXC-2094 - 390783311). This research used resources of the Central Computing System owned and operated by the Computing Research Center at KEK, as well as resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy.
Published: 2020

13. 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

14. 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

15. The Aerogel RICH detector of the Belle II experiment

Author: Luka Santelj, Ichiro Adachi, Leonid Burmsistrov, Rok Dolenec, Koki Hataya, Toru Iijima, Shiori Kakimoto, Hidekazu Kakuno, Hideyuki Kawai, Takeo Kawasaki, Haruki Kindo, Takashi Kohriki, Tomoyuki Konno, Samo Korpar, Emi Kou, Peter Krizan, Tetsuro Kumita, Yun-Tsung Lai, Masahiro Machida, Manca Mrvar, Shohei Nishida, Kouta Noguchi, Kazuya Ogawa, Satoru Ogawa, Rok Pestotnik, Masayoshi Shoji, Takayuki Sumiyoshi, Makoto Tabata, Sachi Tamechika, Masanobu Yonenaga, Morihito Yoshizawa, Yosuke Yusa, Francois Le Diberder, Laboratoire de l'Accélérateur Linéaire (LAL), and 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)
Subjects: Physics::Instrumentation and Detectors, aerogel, High Energy Physics::Experiment, BELLE, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment, RICH, 7. Clean energy, activity report, performance, detector: design
Abstract: International audience; In the forward end-cap of the Belle II spectrometer, an innovative proximity focusing Ring Imaging Cherenkov counter with a multilayer focusing aerogel radiator has been installed. The detector is designed to be operated in a magentic field of 1.5 T, and consists of a double layer aerogel radiator, an expansion volume and a photon detector. In total 420 Hamamatsu hybrid avalanche photo sensors with 144 channels each are used to read out single Cherenkov photons with high efficiency. We expect the device to provide better than 4s separation of pions from kaons in the full kinmatic region of the experiment, from 0.5 GeV/c to 4 GeV/c. The detector components have been successfully produced and installed in the spectrometer. After the commissioning phase in 2018, the detector is now included in the Belle II data taking, and is expected to contribute substantially to the performance of the spectrometer in looking for rare decays of B and D mesons, and of tau leptons. In this contribution we review the detector design and present results of the first detector performance studies.
Published: 2020

16. The JSNS2 data acquisition system

Author: Shoichi Hasegawa, Yorihito Sugaya, Eunhyang Kwon, J. R. Jordan, R. Ujiie, M. Niiyama, K. Nishikawa, T. Maruyama, J. S. Park, T. Hiraiwa, M. Taira, H. Jeon, K. K. Joo, S. Jeon, Takeo Kawasaki, J. Spitz, Myung-Ki Cheoun, M. Jang, I. T. Lim, M. Botran, Masaharu Nomachi, J. S. Jang, Tatsushi Shima, H. I. Jang, Carsten Rott, Y. Hino, D. H. Lee, S. Monjushiro, Tomoyuki Konno, E. Marzec, M. Y. Pac, Jeong-Sik Choi, S. Ajimura, P. Gwak, F. Suekane, Intae Yu, I. Stancu, S. J. M. Peeters, T. Nakano, H. Furuta, Masahide Harada, Eunja Kim, Seyong Kim, J. Y. Kim, J. H. Seo, C. D. Shin, Kentaro Suzuya, Shinichi Sakamoto, A. Zohaib, S. B. Kim, Kenji Sakai, Sin Kyu Kang, W. Kim, S. Meigo, H. Ray, Hyonsan Seo, Dong Ho Moon, D. E. Jung, Minfang Yeh, Y. Kasugai, and T. Dodo
Subjects: Physics, Photomultiplier, 010308 nuclear & particles physics, business.industry, Detector, Scintillator, 01 natural sciences, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Data acquisition, Optics, 0103 physical sciences, Neutron source, Neutrino, Neutrino oscillation, business, Instrumentation, Mathematical Physics, Spallation Neutron Source
Abstract: The JSNS$^{2}$ (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment aims to search for neutrino oscillations over a 24 m short baseline at J-PARC. The JSNS$^{2}$ inner detector is filled with 17 tons of gadolinium(Gd)-loaded liquid scintillator (LS) with an additional 31 tons of unloaded LS in the intermediate $\gamma$-catcher and an optically separated outer veto volumes. A total of 120 10-inch photomultiplier tubes observe the scintillating optical photons and each analog waveform is stored with the flash analog-to-digital converters. We present details of the data acquisition, processing, and data quality monitoring system. We also present two different trigger logics which are developed for the beam and self-trigger.
Published: 2020

17. Slow control and monitoring system at the JSNS$^{2}$

Author: H. Jeon, S. Ajimura, Intae Yu, I. Stancu, H. Furuta, S. J. M. Peeters, Tomoyuki Konno, I. S. Yeo, J. S. Jang, E.J. Kim, Y. Hino, H. I. Jang, F. Suekane, S. Monjushiro, D H Lee, C. Yoo, T. Maruyama, J. S. Park, Yorihito Sugaya, R. Ujiie, Gerrit Roellinghoff, K. Nishikawa, J. Spitz, S. Sakamoto, M. Taira, J. W. Choi, Tatsushi Shima, J. Y. Kim, Shin-ichiro Meigo, S. Jeon, Myung-Ki Cheoun, Shoichi Hasegawa, Takeo Kawasaki, J. R. Jordan, D. E. Jung, M. Botran, J. H. Choi, J Goh, C. D. Shin, Minfang Yeh, K. K. Joo, K. Suzuya, Toshihiko Hiraiwa, I. T. Lim, Y. Kasugai, E. Marzec, T. Dodo, Dong Ho Moon, Masaharu Nomachi, Carsten Rott, Sin Kyu Kang, Masahide Harada, M. Jang, H. Ray, T. Nakano, M. Y. Pac, S. Lee, S. B. Kim, W. Kim, A. Zohaib, M. Niiyama, and Kenji Sakai
Subjects: Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Control (management), FOS: Physical sciences, General Physics and Astronomy, Control engineering, Monitoring system, High Energy Physics::Experiment, Instrumentation and Detectors (physics.ins-det)
Abstract: The JSNS$^2$ experiment is aimed to search for sterile neutrino oscillations using a neutrino beam from muon decays at rest. The JSNS$^2$ detector contains 17 tons of 0.1\% gadolinium (Gd) loaded liquid scintillator (LS) as a neutrino target. Detector construction was completed in the spring of 2020. A slow control and monitoring system (SCMS) was implemented for reliable control and quick monitoring of the detector operational status and environmental conditions. It issues an alarm if any of the monitored parameters exceed a preset acceptable range. The SCMS monitors the high voltage (HV) of the photomultiplier tubes (PMTs), the LS level in the detector, possible LS overflow and leakage, the temperature and air pressure in the detector, the humidity of the experimental hall, and the LS flow rate during filling and extraction. An initial 10 days of data-taking with a neutrino beam was done following a successful commissioning of the detector and SCMS in June 2020. In this paper, we present a description of the assembly and installation of the SCMS and its performance., 12 pages, 11 figures
Published: 2020

18. 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

19. 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

20. Performance evaluation of the aerogel RICH counter for the Belle II spectrometer using early beam collision data

Author: G. Nazaryan, P. Križan, Y. Lai, Hidekazu Kakuno, H. Kitamura, S. Nishida, R. Pestotnik, H. Kawai, Tomoyuki Konno, Makoto Tabata, M. Nishimura, T. Kumita, L. Burmistrov, F. Le Diberder, K. Ogawa, H. Kindo, Takeo Kawasaki, Samo Korpar, Takashi Kohriki, Y. Yusa, Masayoshi Shoji, S. Kakimoto, A. Seljak, L. Santelj, Shuichi Iwata, K. Kuze, S. Ogawa, M. Mrvar, Masakazu Kobayashi, M. Yonenaga, S. Tamechika, G. Karyan, Iki Adachi, T. Sumiyoshi, Toru Iijima, Laboratoire de l'Accélérateur Linéaire (LAL), and 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)
Subjects: Photon, Physics - Instrumentation and Detectors, measurement methods, aerogel, General Physics and Astronomy, FOS: Physical sciences, BELLE, 01 natural sciences, Particle identification, 030218 nuclear medicine & medical imaging, High Energy Physics - Experiment, Nuclear physics, K: particle identification, 03 medical and health sciences, High Energy Physics - Experiment (hep-ex), 0302 clinical medicine, Pion, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], H14 Particle identification, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment, RICH, Cherenkov radiation, Physics, Spectrometer, 010308 nuclear & particles physics, Detector, Instrumentation and Detectors (physics.ins-det), detector: alignment, calibration, efficiency, High Energy Physics::Experiment, pi: particle identification, Event (particle physics), Beam (structure), performance
Abstract: The Aerogel Ring Imaging Cherenkov (ARICH) counter serves as a particle identification device in the forward end-cap region of the Belle II spectrometer. It is capable of identifying pions and kaons with momenta up to $4 \, {\rm GeV}/c$ by detecting Cherenkov photons emitted in the silica aerogel radiator. After the detector alignment and calibration of the probability density function, we evaluate the performance of the ARICH counter using early beam collision data. Event samples of $D^{\ast +} \to D^0 \pi^+ (D^0 \to K^-\pi^+)$ were used to determine the $\pi(K)$ efficiency and the $K(\pi)$ misidentification probability. We found that the ARICH counter is capable of separating kaons from pions with an identification efficiency of $93.5 \pm 0.6 \, \%$ at a pion misidentification probability of $10.9 \pm 0.9 \, \%$. This paper describes the identification method of the counter and the evaluation of the performance during its early operation., Comment: To be published in Prog. Theor. Exp. Phys
Published: 2020

21. 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

22. Performance of PMTs for the JSNS2 experiment

Author: S. B. Kim, F. Suekane, Shoichi Hasegawa, Masahide Harada, Eunja Kim, K. K. Joo, Jeong-Sik Choi, Kenji Sakai, Eunhyang Kwon, Intae Yu, J. Y. Kim, T. Maruyama, I. Stancu, M. Y. Pac, M. Niiyama, M. Taira, Shinichi Sakamoto, S. J. M. Peeters, T. Nakano, A. Zohaib, J. H. Seo, W. Kim, C. D. Shin, Y. Hino, Kentaro Suzuya, P. Gwak, E. Marzec, Seyong Kim, M. Jang, D. E. Jung, Minfang Yeh, H. Jeon, Y. Kasugai, S. Jeon, Myung-Ki Cheoun, T. Dodo, J. S. Jang, I. T. Lim, H. Furuta, Tatsushi Shima, Masaharu Nomachi, T. Hiraiwa, Hyonsan Seo, J. S. Park, S. Ajimura, J. R. Jordan, H. Ray, S. Meigo, R. Ujiie, J. Spitz, Sin Kyu Kang, Tomoyuki Konno, D. H. Lee, Carsten Rott, M. Botran, K. Nishikawa, Dong Ho Moon, Takeo Kawasaki, Yorihito Sugaya, H. I. Jang, and S. Monjushiro
Subjects: Physics, Photomultiplier, Scintillation, Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Scintillator, 01 natural sciences, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Optics, Neutrino detector, 0103 physical sciences, Neutron source, Neutrino, Neutrino oscillation, business, Instrumentation, Mathematical Physics, Spallation Neutron Source
Abstract: The JSNS$^{2}$ (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment aims to search for neutrino oscillations over a 24\,m short baseline at J-PARC. The JSNS$^{2}$ inner detector is filled with 17 tons of gadolinium-loaded liquid scintillator (LS) and both the intermediate $\gamma$-catcher and the optically separated outer veto are filled with un-loaded LS. Optical photons from scintillation are observed by 120 Photomultiplier Tubes (PMTs). A total of 130 PMTs for the JSNS2 experiment were both donated by other experiments and purchased from Hamamatsu. Donated PMTs were purchased around 10 years ago, therefore JSNS$^{2}$ did pre-calibration of the PMTs including the purchased PMTs. 123 PMTs demonstrated acceptable performance for the JSNS$^{2}$ experiment, and 120 PMTs were installed in the detector.
Published: 2020
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23. First Measurements of Absolute Branching Fractions of the Ξc0 Baryon at Belle

Author: S. Jia, C. H. Wang, H. Ye, S. Pardi, V.N. Zhilich, T. Aushev, A. K. Giri, G.V. Russo, G. Schnell, K. Tanida, M. Niiyama, Luka Santelj, V. Zhukova, Y. Onuki, T. Iijima, J. G. Shiu, M. Masuda, R. Mussa, Rocky Bala Garg, T. Bilka, Jyoti Prakash Biswal, K. Miyabayashi, I. Badhrees, X. L. Wang, A. Ishikawa, V. Gaur, M. Nakao, M. Takizawa, A. Kuzmin, Phillip Urquijo, R. Van Tonder, L. Cao, I. Adachi, P. Križan, Soumen Paul, S. Eidelman, John Yelton, Z. Doležal, Bingran Wang, J. H. Yin, Jihwa Lee, Y. B. Li, T. Matsuda, W. Sutcliffe, S. Uno, J. B. Kim, M. Merola, S. Cunliffe, K. K. Joo, Massimo Berger, C.-L. Hsu, Shih-Chang Lee, E. Prencipe, A. Bozek, Y. Iwasaki, Y. J. Kwon, G. B. Mohanty, C. Z. Yuan, E. Solovieva, Y. Ban, K. Senyo, Vikas Bansal, Y. Yusa, E. Nakano, M. Uchida, D. Joffe, M. Salehi, O. Schneider, L. K. Li, S. H. Kim, P. Krokovny, V. Bhardwaj, K. Cho, B. Shwartz, H. J. Kim, K. Trabelsi, G. S. Varner, M. Nayak, Seokhee Park, L. E. Piilonen, B. Bhuyan, T. V. Dong, Y. Choi, K. J. Nath, T. A. Shibata, K. Inami, H. Kichimi, A. J. Schwartz, T. Uglov, C. P. Shen, J. Libby, D. M. Asner, K. Hayasaka, B. G. Fulsom, B. Pal, K. T. Kim, P. Pakhlov, Y. Sakai, P. L. Wang, M. Sumihama, M. Iwasaki, B. G. Cheon, H. Miyata, Peter Kodys, W. W. Jacobs, S. Al Said, V. Savinov, D. Liventsev, R. Ayad, James E. Fast, Vladimir Popov, T. K. Pedlar, Y. Jin, J. Schueler, E. Won, Z. P. Zhang, S. K. Choi, R. Kroeger, M. E. Sevior, P. Goldenzweig, S. Sandilya, N. Gabyshev, D. Červenkov, S. Di Carlo, S. Nishida, J. MacNaughton, Seongbae Yang, M. Z. Wang, K. Kinoshita, R. Itoh, D. Y. Kim, M. Starič, T. Kumita, G. Karyan, G. Pakhlova, A. Bondar, F. Tenchini, S. Korpar, D. Kotchetkov, B. Grube, R. Mizuk, T. Sumiyoshi, C. Schwanda, H. Ono, T. Sanuki, Y. Seino, C. Beleño, M. Bračko, Y. Tao, H. Aihara, Y. Unno, Takeo Kawasaki, H. Hayashii, D. Cinabro, M. Lubej, G. Inguglia, K. Chilikin, L. Li Gioi, A. Garmash, Daniel Greenwald, R. Pestotnik, Z. Drásal, and A. Chen
Subjects: 0103 physical sciences, General Physics and Astronomy, Library science, 010306 general physics, 01 natural sciences
Abstract: We thank Professor Fu-sheng Yu for useful discussions and comments. Y. B. L. acknowledges the support from the China Scholarship Council (201706010043). We thank the KEKB group for excellent operation of the accelerator; the KEK cryogenics group for efficient solenoid operations; and the KEK computer group, the NII, and PNNL/EMSL for valuable computing and SINET5 network support. We acknowledge support from MEXT, JSPS and Nagoya’s TLPRC (Japan); ARC (Australia); FWF (Austria); the National Natural Science Foundation of China under Contracts No. 11475187, No. 11521505, No. 11575017, No. 11761141009; the CAS Center for Excellence in Particle Physics (CCEPP); MSMT (Czechia); CZF, DFG, EXC153, and VS (Germany); DST (India); INFN (Italy); MOE, MSIP, NRF, RSRI, FLRFAS project and GSDC of KISTI and KREONET/GLORIAD (Korea); MNiSW and NCN (Poland); MSHE, Agreement No. 14.W03.31.0026 (Russia); ARRS (Slovenia); IKERBASQUE (Spain); SNSF (Switzerland); MOE and MOST (Taiwan); and DOE and NSF (U.S.).
Published: 2019

24. 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

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

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

26. 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. R., Shigemitsu, J., Shimizu, N., Shimizu, Y., Silvestrini, L., Simula, S., Smith, C., Stoffer, P., Straub, D., Tackmann, F. J., Tanaka, M., Tayduganov, A., Tetlalmatzi-Xolocotzi, G., Teubner, T., Vairo, A., van Dyk, D., Virto, J., Was, Z., Watanabe, R., Watson, I., Zupan, J., Zwicky, R., Abudinen, F., Adachi, I., Adamczyk, K., Ahlburg, P., Aihara, H., Aloisio, A., Andricek, L., Anh Ky, N., Arndt, M., Asner, D. M., Atmacan, H., Aushev, T., Aushev, V., Ayad, R., Aziz, T., Baehr, S., Bahinipati, S., Bambade, P., Ban, Y., Barrett, M., Baudot, J., Behera, P., Belous, K., Bender, M., Bennett, J., Berger, M., Bernieri, E., Bernlochner, F. U., Bessner, M., Besson, D., Bettarini, S., Bhardwaj, V., Bhuyan, B., Bilka, T., Bilmis, S., Bilokin, S., Bonvicini, G., Bozek, A., Bracko, M., Branchini, P., Braun, N., Briere, R. A., Browder, T. E., Burmistrov, L., Bussino, S., Cao, L., Caria, G., Casarosa, G., Cecchi, C., Cervenkov, D., Chang, M. -C., Chang, P., Cheaib, R., Chekelian, V., Chen, Y., Cheon, B. G., Chilikin, K., Cho, K., Choi, J., Choi, S. -K., Choudhury, S., Cinabro, D., Cremaldi, L. M., Cuesta, D., Cunliffe, S., Dash, N., de la Cruz Burelo, E., De Lucia, E., De Nardo, G., De Nuccio, M., De Pietro, G., De Yta Hernandez, A., Deschamps, B., Destefanis, M., Dey, S., Di Capua, F., Di Carlo, S., Dingfelder, J., Dolezal, Z., Dominguez Jimenez, I., Dong, T. V., Dossett, D., Duell, S., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fiore, S., Fodor, A., Forti, F., Frey, A., Frost, O., Fulsom, B. 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D., Kindo, H., Kinoshita, K., Konno, T., Korobov, A., Korpar, S., Kotchetkov, D., Kowalewski, R., Krizan, 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., L. K., Li, Li, Y., Y. B., Li, 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., Mueller, F., Mueller, Th., Macqueen, C., Maeda, Y., Maggiora, M., Maity, S., Manoni, E., Marcello, S., Marinas, C., Martinez Hernandez, M., Martini, A., Matvienko, D., Mckenna, J. A., Meier, F., Merola, M., Metzner, F., Miller, C., Miyabayashi, K., Miyake, H., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Moon, T., Morda, A., Morii, T., Mrvar, M., Muroyama, G., Mussa, R., Nakamura, I., Nakano, T., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Naruki, M., Nath, K. J., Nayak, M., Nellikunnummel, N., Neverov, D., Niebuhr, C., Ninkovic, J., Nishida, S., Nishimura, K., Nouxman, M., Nowak, G., Ogawa, K., Onishchuk, Y., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Paoloni, E., Park, H., Park, C. -S., Paschen, B., Passeri, A., Paul, S., Pedlar, T. K., Perello, M., Peruzzi, I. M., Pestotnik, R., Piilonen, L. E., Podesta Lerma, L., Popov, V., Prasanth, K., Prencipe, E., Prim, M., Purohit, M. V., Rabusov, A., Rasheed, R., Reiter, S., Remnev, M., Resmi, P. K., Ripp-Baudot, I., Ritter, M., Ritzert, M., Rizzo, G., Rizzuto, L., Robertson, S. H., Rodriguez Perez, D., Roney, J. M., Rosenfeld, C., Rostomyan, A., Rout, N., Rummel, S., Russo, G., Sahoo, D., Sakai, Y., Salehi, M., Sanders, D. 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. E., van Tonder, R., Varner, G., Varvell, K. 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., DE NARDO, Guglielmo, Kou, E, Urquijo, P, Altmannshofer, W, Beaujean, F, Bell, G, Beneke, M, Bigi, I I, Bishara, F, Blanke, M, Bobeth, C, Bona, M, Brambilla, N, Braun, V M, Brod, J, Buras, A J, Cheng, H Y, Chiang, C W, Ciuchini, M, Colangelo, G, Crivellin, A, Czyz, H, Datta, A, De Fazio, F, Deppisch, T, Dolan, M J, Evans, 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, Hurth, T, Jaeger, S, Jahn, 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, Lu, C D, Lubicz, V, Mahmoudi, F, Maltman, K, Mishima, S, Misiak, M, 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, Rosiek, J, Schacht, S, Schmidt-Hoberg, K, Schwichtenberg, J, Sharpe, S R, Shigemitsu, J, Shih, D, Shimizu, N, Shimizu, Y, Silvestrini, L, Simula, S, Smith, C, Stoffer, P, Straub, D, Tackmann, F J, Tanaka, M, Tayduganov, A, Tetlalmatzi-Xolocotzi, G, Teubner, T, Vairo, A, van Dyk, D, Virto, J, Was, Z, Watanabe, R, Watson, I, Westhoff, S, Zupan, J, Zwicky, R, Abudinén, F, Adachi, I, Adamczyk, K, Ahlburg, P, Aihara, H, Aloisio, A, Andricek, L, Anh Ky, N, Arndt, M, Asner, D M, Atmacan, H, Aushev, T, Aushev, V, Ayad, R, Aziz, T, Baehr, S, Bahinipati, S, Bambade, P, Ban, Y, Barrett, M, Baudot, J, Behera, P, Belous, K, Bender, M, Bennett, J, Berger, M, Bernieri, E, Bernlochner, F U, Bessner, M, Besson, D, Bettarini, S, Bhardwaj, V, Bhuyan, B, Bilka, T, Bilmis, S, Bilokin, S, Bonvicini, G, Bozek, A, Bračko, M, Branchini, P, Braun, N, Briere, R A, Browder, T E, Burmistrov, L, Bussino, S, Cao, L, Caria, G, Casarosa, G, Cecchi, C, Červenkov, D, Chang, M-C, Chang, P, Cheaib, R, Chekelian, V, Chen, Y, Cheon, B G, Chilikin, K, Cho, K, Choi, J, Choi, S-K, Choudhury, S, Cinabro, D, Cremaldi, L M, Cuesta, D, Cunliffe, S, Dash, N, de la Cruz Burelo, E, de Lucia, E, De Nardo, G, De Nuccio, M, De Pietro, G, De Yta Hernandez, A, Deschamps, B, Destefanis, M, Dey, S, Di Capua, F, Di Carlo, S, Dingfelder, J, Doležal, Z, Domínguez Jiménez, I, Dong, T V, Dossett, D, Duell, S, Eidelman, S, Epifanov, D, Fast, J E, Ferber, T, Fiore, S, Fodor, A, Forti, F, Frey, A, Frost, O, Fulsom, B G, Gabriel, M, Gabyshev, N, Ganiev, E, Gao, X, Gao, B, Garg, R, Garmash, A, Gaur, V, Gaz, A, Geßler, T, Gebauer, U, Gelb, M, Gellrich, A, Getzkow, D, Giordano, R, Giri, A, Glazov, A, Gobbo, B, Godang, R, Gogota, O, Goldenzweig, P, Golob, B, Gradl, W, Graziani, E, Greco, M, Greenwald, D, Gribanov, S, Guan, Y, Guido, E, Guo, A, Halder, S, Hara, K, Hartbrich, O, Hauth, T, Hayasaka, K, Hayashii, H, Hearty, C, Heredia De La Cruz, 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, Macqueen, C, Maeda, Y, Maggiora, M, Maity, S, Manoni, E, Marcello, S, Marinas, C, Martinez Hernandez, M, Martini, A, Matvienko, D, Mckenna, J A, Meier, F, Merola, M, Metzner, F, Miller, C, Miyabayashi, K, Miyake, H, Miyata, H, Mizuk, R, Mohanty, G B, Moon, H K, Moon, T, Morda, A, Morii, T, Mrvar, M, Muroyama, G, Mussa, R, Nakamura, I, Nakano, T, Nakao, M, Nakayama, H, Nakazawa, H, Nanut, T, Naruki, M, Nath, K J, Nayak, M, Nellikunnummel, N, Neverov, D, Niebuhr, C, Ninkovic, J, Nishida, S, Nishimura, K, Nouxman, M, Nowak, G, Ogawa, K, Onishchuk, Y, Ono, H, Onuki, Y, Pakhlov, P, Pakhlova, G, Pal, B, Paoloni, E, Park, H, Park, C-S, Paschen, B, Passeri, A, Paul, S, Pedlar, T K, Perelló, M, Peruzzi, I M, Pestotnik, R, Piilonen, L E, Podesta Lerma, L, Popov, V, Prasanth, K, Prencipe, E, Prim, M, Purohit, M V, Rabusov, A, Rasheed, R, Reiter, S, Remnev, M, Resmi, P K, Ripp-Baudot, I, Ritter, M, Ritzert, M, Rizzo, G, Rizzuto, L, Robertson, S H, Rodriguez Perez, D, Roney, J M, Rosenfeld, C, Rostomyan, A, Rout, N, Rummel, S, Russo, G, Sahoo, D, Sakai, Y, Salehi, M, Sanders, D 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, Stanič, S, Starič, 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 E, van Tonder, R, Varner, G, Varvell, K 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

27. 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

28. Performance Estimation of the Belle II Aerogel RICH Counter in the First Beam Collision

Author: M. Machida, Francois Le Diberder, Y. Lai, S. Ogawa, Tomoyuki Konno, Luka Santelj, M. Mrvar, Hidekazu Kakuno, Rok Dolenec, K. Noguchi, M. Yonenaga, Tetsuro Kumita, M. Yoshizawa, Y. Yusa, Makoto Tabata, S. Kakimoto, M. Shoji, Takashi Kohriki, P. Križan, Takeo Kawasaki, K. Ogawa, Samo Korpar, H. Kindo, K. Hataya, Shohei Nishida, Hideyuki Kawai, Rok Pestotnik, T. Sumiyoshi, Leonid Burmsistrov, Toru Iijima, S. Tamechika, Ichiro Adachi, Laboratoire de l'Accélérateur Linéaire (LAL), and 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)
Subjects: photon: angular distribution, Materials science, 010308 nuclear & particles physics, business.industry, Performance estimation, Physics::Instrumentation and Detectors, aerogel, PID, B Physics, Aerogel, BELLE, Collision, Hybrid Avalanche Photo Detector, 01 natural sciences, 7. Clean energy, Optics, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, business, particle identification, Silica Aerogel, RICH, Beam (structure), performance
Abstract: International audience; The Belle II experiment at the SuperKEKB facility started the beam collision in 2018, aiming search for the New Physics beyond the Standard Model. The Aerogel Ring Imaging Cherenkov (ARICH) counter is a particle identification (PID) device in the forward endcap of the Belle II detector to provide 4$\sigma $ separation of charged kaons and pions of momenta up to 3.5 GeV. The ARICH counter is a proximity-focusing RICH counter to identify particle species based on the angular distribution of Cherenkov photons located in 30 cm depth of narrow space and 1.5 T of high magnetic field. Two layers of the silica aerogel with different refractive indices emits photons as Cherenkov ring image. A total of 420 of Hybrid Avalanche Photo Detectors (HAPDs) are used to measure the 2-dimensional distribution of photons. We have collected ring images in the first beam collision data during the Phase II commissioning run and studies for the PID performance estimation are being carried out toward the Phase III physics data taking starting in 2019.
Published: 2018

29. Performance Evaluation of the HAPD in the Belle II Aerogel RICH Counter

Author: Samo Korpar, Y. Lai, M. Yonenaga, Y. Yusa, Francois Le Diberder, Rok Dolenec, M. Shoji, K. Hataya, Makoto Tabata, S. Ogawa, Luka Santelj, Hideyuki Kawai, Takeo Kawasaki, Hidekazu Kakuno, Tomoyuki Konno, M. Mrvar, K. Noguchi, M. Machida, H. Kindo, P. Križan, Takashi Kohriki, T. Kumita, K. Ogawa, S. Tamechika, Ichiro Adachi, S. Kakimoto, M. Yoshizawa, Shohei Nishida, Rok Pestotnik, T. Sumiyoshi, Leonid Burmsistrov, Toru Iijima, Laboratoire de l'Accélérateur Linéaire (LAL), and 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)
Subjects: noise, Materials science, 010308 nuclear & particles physics, Physics::Instrumentation and Detectors, aerogel, Aerogel, BELLE, 01 natural sciences, performance: temperature dependence, hybrid photon detector, Chemical engineering, efficiency, 0103 physical sciences, electronics: readout, photon: detector, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, particle identification, RICH, Cherenkov detector
Abstract: International audience; The Hybrid Avalanche Photo Detector (HAPD) is used as a photon detector for Aerogel Ring Imaging Cherenkov counter (ARICH), a particle identification device at Belle II. ARICH measures Cherenkov angles of photons emitted in silica aerogel radiators, hence a high photon detection efficiency is required by the HAPD module, a combination of HAPD and front-end electronics board. We evaluate the performance of the HAPD modules by measuring the noise level, the offset value, the pulse height, temperature dependency and the variation of performance in the beam commissioning period. This article describes the results of performance evaluation of the HAPD and shows that it fulfills the requirements of ARICH.
Published: 2018

30. Aerogel-Based Ring-Imaging Cherenkov counter in the Belle II experiment

Author: S. Nishida, Iki Adachi, S. Kakimimoto, M. Yoshizawa, Y. Yusa, Kohei Ogawa, Tomoyuki Konno, K. Noguchi, K. Hataya, Makoto Tabata, H. Kindo, F. Le Diberder, T. Sumiyoshi, H. Kawai, M. Machida, L. Santelj, S. Ogawa, S. Korpar, M. Nishimura, M. Mrvar, T. Kumita, Hidekazu Kakuno, P. Krizan, M. Yonenaga, L. Burmistrov, S. Tamechika, Takeo Kawasaki, R. Pestotnik, Y. Lai, Laboratoire de l'Accélérateur Linéaire (LAL), and 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)
Subjects: Meson, Physics::Instrumentation and Detectors, aerogel, Photodetector, Cosmic ray, BELLE, Integrated circuit, 030218 nuclear medicine & medical imaging, law.invention, Nuclear physics, K: particle identification, 03 medical and health sciences, 0302 clinical medicine, law, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], RICH, Cosmic rays, Cherenkov radiation, FPGA, Physics, refractive index, Mesons, business.industry, Detector, integrated circuit, Field programmable gate arrays, Detectors, Corporate acquisitions, Photonics, Image reconstruction, electronics: readout, CP violation, High Energy Physics::Experiment, business, pi: particle identification, performance
Abstract: International audience; In the charged particle identification system of the Belle II experiment, an aerogel-based proximity focusing ring-imaging Cherenkov (ARICH) counter is installed in the forward end-cap region of the Belle II detector. The goal is to enhance the power of separation between kaons and pions up to and above 4σ for momenta up to 4 GeV/c, which is critical to the study of CP violation involved in B decays. The counter is made of aerogel tiles with refractive indices n of 1.045 and 1.055, transmission lengths of 30-40 mm, and dimensions of 18 × 18 × 2 cm3. A 144-channel HAPD (Hybrid Avalanche Photo Detector) is adopted as a photo-detector, and the HAPD signal processing is performed using ASICs (Application Specific Integrated Circuit) to digitize the signal and FPGAs (Field Programmable Gate Array) for data processing.During Phase II operation of SuperKEKB, the commissioning of ARICH is done both with cosmic rays and beam collisions. The Cherenkov rings are clearly observed, and the performance of the hardware system and identification algorithm is being evaluated. In this paper, we will report on the construction of ARICH and on the initial performance of the detector obtained during the commissioning.
Published: 2018

31. Belle II aerogel RICH detector

Author: K. Noguchi, Luka Santelj, S. Korpar, Hideyuki Kawai, Takeo Kawasaki, Hidekazu Kakuno, P. Križan, I. Adachi, S. Kakimoto, M. Mrvar, M. Tabata, K. Hataya, Y. Yusa, K. Ogawa, Toru Iijima, M. Machida, S. Ogawa, Y. Lai, T. Kumita, T. Kohriki, S. Tamechika, M. Yoshizawa, Rok Pestotnik, T. Sumiyoshi, Shohei Nishida, L. Burmistrov, M. Shoji, Rok Dolenec, F. Le Diberder, Tomoyuki Konno, M. Yonenaga, H. Kindo, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and 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)
Subjects: Nuclear and High Energy Physics, Photon, Particle identification detector, Physics::Instrumentation and Detectors, aerogel, BELLE, electron positron: scattering, Electron, 01 natural sciences, Particle identification, Nuclear physics, Momentum, 0103 physical sciences, Angular resolution, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, RICH, Instrumentation, activity report, Cherenkov radiation, Physics, Range (particle radiation), 010308 nuclear & particles physics, Detector, Cherenkov effect, angular resolution, Physics::Accelerator Physics, High Energy Physics::Experiment, performance
Abstract: International audience; The aerogel Ring Imaging CHerenkov counter (ARICH) is the particle identification device installed in the forward region of the Belle II detector at the SuperKEKB accelerator facility in Japan. The first electron–positron collisions at SuperKEKB took place on April 26, 2018, during the so called phase 2 run. The measured performance of the detector based on recorded Bhabha events during phase 2 is presented. We measure a 14 mrad average angular resolution per photon and 10 photons per Bhabha electron in the [6–8] GeV/c momentum range.
Published: 2020

32. Performance and commissioning of HAPDs in the Aerogel RICH counter

Author: Luka Santelj, S. Korpar, Shohei Nishida, M. Yoshizawa, M. Machida, Tomoyuki Konno, Hidekazu Kakuno, P. Križan, Rok Pestotnik, M. Mrvar, T. Sumiyoshi, Takashi Kohriki, K. Ogawa, S. Tamechika, Hideyuki Kawai, M. Yonenaga, S. Kakimoto, I. Adachi, K. Hataya, M. Tabata, M. Shoji, Francois Le Diberder, S. Ogawa, Toru Iijima, T. Kumita, Y. Lai, Takeo Kawasaki, K. Noguchi, L. Burmistrov, Rok Dolenec, H. Kindo, Y. Yusa, Laboratoire de l'Accélérateur Linéaire (LAL), and 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)
Subjects: Nuclear and High Energy Physics, noise, Photon, Cherenkov detector, Physics::Instrumentation and Detectors, aerogel, Photodetector, BELLE, Photon detector, 7. Clean energy, 01 natural sciences, law.invention, Nuclear physics, Pion, law, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, ARICH, Instrumentation, RICH, Cherenkov radiation, Physics, Spectrometer, 010308 nuclear & particles physics, Detector, Aerogel, stability, High Energy Physics::Experiment, photon: detector, performance
Abstract: International audience; The Belle II Aerogel Ring Imaging Cherenkov (ARICH) counter uses the angular distribution of Cherenkov photons emitted in silica aerogel to discriminate between charged pions and kaons. The Hybrid Avalanche Photo Detector (HAPD) is used as the photo-sensor, and is clearly the most critical component of the detector. HAPDs were installed into ARICH in July 2017, and ARICH was installed in the Belle II spectrometer in the end of 2017. During the Belle II beam commissioning in spring 2018, the performance of HAPDs was evaluated through measurements of the offset value, noise level and pulse height. Long term stability of the signal-to-noise ratio and the fraction of dead channel was also monitored. The signal-to-noise ratio exceeded 6, and the fraction of dead channels was less than 1%. The results of the performance evaluation and of the commissioning showed that the ARICH counter fulfills the requirements.
Published: 2018

33. Front-end electronics of the Belle II aerogel ring imaging detector

Author: Tomoyuki Konno, F. Le Diberder, S. Ogawa, K. Ogawa, Y. Yusa, T. Kumita, Rok Dolenec, P. Križan, Y. Lai, S. Kakimoto, Takeo Kawasaki, K. Hataya, M. Yonenaga, I. Adachi, K. Noguchi, Luka Santelj, L. Burmistrov, S. Korpar, Hidekazu Kakuno, H. Kindo, S. Tamechika, M. Mrvar, M. Yoshizawa, M. Machida, Shohei Nishida, M. Tabata, Rok Pestotnik, T. Sumiyoshi, Hideyuki Kawai, Laboratoire de l'Accélérateur Linéaire (LAL), and 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)
Subjects: Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, aerogel, Photodetector, BELLE, 010403 inorganic & nuclear chemistry, Ring (chemistry), 01 natural sciences, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Optics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Hybrid avalanche photo detector, Instrumentation, Confined space, RICH, Physics, Spectrometer, business.industry, Detector, Aerogel, Front-end electronics, Charged particle, 0104 chemical sciences, Proximity focusing RICH with an aerogel radiator, Radiator (engine cooling), electronics: readout, High Energy Physics::Experiment, business, performance, electronics: design
Abstract: International audience; A proximity focusing RICH detector with an aerogel radiator is used for charged particle identification in the forward end-cap of the Belle II spectrometer. The detector, consisting of a 4 cm aerogel radiator, a 16 cm expansion volume and a photon detector with 420 Hybrid Avalanche Photo Detectors, is mounted in a very confined space between Central Drift Chamber and Electromagnetic Calorimeter, allowing only 5 cm of space for the readout electronics. In our solution, low power front-end read-out boards are mounted at the back side of each of the HAPD photosensors. These boards have each been tested individually before their installation onto the photosensors and into the spectrometer. Most important design issues and first experiences with the aforementioned front-end read-out boards are presented in this contribution.
Published: 2018

34. Calibration of the Belle II aerogel ring imaging detector

Author: K. Noguchi, Hidekazu Kakuno, Tomoyuki Konno, H. Kindo, M. Yoshizawa, M. Yonenaga, Rok Dolenec, Y. Lai, Hideyuki Kawai, F. Le Diberder, K. Hataya, P. Križan, M. Machida, Y. Yusa, K. Ogawa, Takeo Kawasaki, I. Adachi, M. Tabata, Shohei Nishida, S. Ogawa, L. Burmistrov, T. Kumita, Rok Pestotnik, M. Mrvar, T. Sumiyoshi, Luka Santelj, S. Korpar, S. Tamechika, S. Kakmimoto, Laboratoire de l'Accélérateur Linéaire (LAL), and 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)
Subjects: Nuclear and High Energy Physics, Photon, Physics::Instrumentation and Detectors, Extended maximum likelihood, measurement methods, aerogel, BELLE, 01 natural sciences, Particle identification, Optics, statistical analysis, 0103 physical sciences, Calibration, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Instrumentation, RICH, Cherenkov radiation, Diode, Particle identification algorithm, Physics, Spectrometer, 010308 nuclear & particles physics, business.industry, Detector, calibration, Semiconductor detector, Proximity focusing RICH with an aerogel radiator, semiconductor detector, High Energy Physics::Experiment, business, particle identification
Abstract: For efficient separation of hadrons in the forward end-cap of the Belle II spectrometer , an aerogel proximity focusing Ring Imaging Detector is installed in the high magnetic field between the central drift chamber and electromagnetic calorimeter . Cherenkov photons , emitted in the double layer aerogel radiator are expanded through the empty space and detected on the photon detector consisting of Hybrid Avalanche Photo diodes . The readout electronics working in a threshold mode records hit patterns registered during beam collisions. A particle identification algorithm based on the two dimensional extended maximum likelihood technique is used to assign probabilities for different particle hypotheses of tracks traversing the aerogel RICH detector. For efficient discrimination, the Aerogel RICH detector has to be calibrated. We present the key calibration steps used to optimize the detector performance.
Published: 2018

35. Initial performance of the Aerogel RICH detector of the Belle II experiment

Author: Luka Santelj, K. Noguchi, S. Korpar, Tomoyuki Konno, M. Yoshizawa, K. Ogawa, M. Mrvar, S. Tamechika, M. Yonenaga, Rok Pestotnik, P. Križan, M. Machida, T. Sumiyoshi, H. Kindo, F. Le Diberder, L. Burmistrov, Shohei Nishida, Takeo Kawasaki, I. Adachi, Y. Yusa, M. Tabata, Hideyuki Kawai, Y. Lai, S. Kakimimoto, K. Hataya, S. Ogawa, T. Kumita, Hidekazu Kakuno, Laboratoire de l'Accélérateur Linéaire (LAL), and 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)
Subjects: Nuclear and High Energy Physics, Cherenkov detector, Physics::Instrumentation and Detectors, aerogel, Cosmic ray, BELLE, 01 natural sciences, 7. Clean energy, Particle identification, law.invention, Nuclear physics, K: particle identification, law, 0103 physical sciences, Belle II, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Collider, Nuclear Experiment, ARICH, Instrumentation, RICH, Cherenkov radiation, activity report, Physics, Spectrometer, 010308 nuclear & particles physics, Detector, B-factory, Physics::Accelerator Physics, High Energy Physics::Experiment, pi: particle identification, performance
Abstract: The Belle II experiment is a new generation B factory experiment at the SuperKEKB electron–positron collider. The main purpose of the experiment is to search for new physics with a large sample of B meson decays. The proximity-focusing Aerogel Ring-Imaging Cherenkov detector (ARICH) has been designed to identify kaons and pions in the forward end-cap of the Belle II spectrometer. Using aerogel as radiator with specialized photon sensors called HAPD, the K/ π separation is expected to reach more than 4 σ in the momentum range from 0.5 GeV/c to 4.0 GeV/c. ARICH detector was constructed in summer 2017 and was installed in the Belle II spectrometer in the beam line of the SuperKEKB collider. The test of the ARICH detector is performed using both cosmic rays and the beam collisions during the accelerator commissioning. We observe Cherenkov rings in the ARICH detector associated with charged tracks detected by the tracking system. The reconstructed Cherenkov angle distribution has a clear and reasonable peak. The ARICH K ∕ π separation performance is evaluated using Bhabha events in beam runs; the separation power achieve the design value.
Published: 2018

36. First experience with Belle II Aerogel RICH detector

Author: Rok Pestotnik, S. Ogawa, T. Sumiyoshi, T. Kumita, Tomoyuki Konno, M. Yonenaga, Y. Yusa, M. Mrvar, K. Hataya, K. Noguchi, I. Adachi, F. Le Diberder, Hidekazu Kakuno, P. Križan, S. Tamechika, Y. Lai, M. Machida, Takeo Kawasaki, M. Yoshizawa, L. Burmistrov, Luka Santelj, M. Tabata, S. Korpar, Shohei Nishida, Hideyuki Kawai, K. Ogawa, H. Kindo, S. Kakmimoto, Rok Dolenec, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear and High Energy Physics, Photon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, aerogel, Cosmic ray, BELLE, 02 engineering and technology, 01 natural sciences, Particle identification, Beam collisions, Nuclear physics, K: particle identification, Pion, 0103 physical sciences, Calibration, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment, Instrumentation, RICH, Cherenkov radiation, Physics, 010308 nuclear & particles physics, Detector, Cherenkov detectors, Astrophysics::Instrumentation and Methods for Astrophysics, 021001 nanoscience & nanotechnology, calibration, Charged particle, Optical photons, efficiency, cosmic radiation, High Energy Physics::Experiment, 0210 nano-technology, performance
Abstract: The Aerogel Ring-Imaging Cherenkov (ARICH) detector provides particle identification information in the forward endcap part of Belle II. It efficiently separates charged kaons from pions for momenta between 0.5 GeV/c and 4.0 GeV/c. Optical photons are emitted in a double layer aerogel radiator and detected by Hybrid Avalanche Photo Detectors. ARICH was installed in Belle II at the end of 2017, the first phase of a complex detector calibration of electronic signals and preparation for physics signals calibration has been successfully concluded. Cherenkov rings, created by cosmic rays as well as by charged particles from beam collisions, have been observed. The kaon identification efficiency using D ± ∗ decays has been studied and its calibration is expected by the end of the commissioning phase when sufficient data is available.
Published: 2018

37. Novel event classification based on spectral analysis of scintillation waveforms in Double Chooz

Author: R. Sharankova, H. Furuta, L. Camilleri, C. Palomares, H. Gomez, V. Sibille, P. Novella, T. Sumiyoshi, Christopher Wiebusch, M. Settimo, A. Hourlier, T. Brugière, J. Maeda, R. Santorelli, Anselmo Meregaglia, A. Onillon, J.V. Dawson, D. Hellwig, Luis González, B. Reinhold, L. Oberauer, T. Miletic, D. Kryn, T. Abrahão, G. Yang, F. Yermia, M. Cerrada, Achim Stahl, J. Haser, Anatael Cabrera, Ying Sun, P. Soldin, M. Kaneda, J. M. López-Castaño, A. Oralbaev, Masaki Ishitsuka, D. Navas-Nicolás, C. E. Lane, Stefan Schönert, F. Suekane, J. C. dos Anjos, Muriel Fallot, John M. LoSecco, L.F.F. Stokes, A.V. Etenko, I. M. Pepe, D. Lhuillier, I. Bekman, G. Mention, M. Vivier, S. Appel, I. Stancu, J. Maricic, M. Skorokhvatov, D. Franco, E. Chauveau, H. de Kerret, Stefan Schoppmann, C. Lastoria, Christian Buck, I. Gil-Botella, C. Veyssiere, Tobias Lachenmaier, A. Givaudan, K. Kale, T.J.C. Bezerra, Masahiro Kuze, Z. Djurcic, G. Pronost, V. Sinev, H. Almazan, Bayarto Lubsandorzhiev, P. Kampmann, B. Viaud, P. Chimenti, Thierry Lasserre, T. Matsubara, T. Hara, A. Tonazzo, O. Corpace, J. I. Crespo-Anadón, Takeo Kawasaki, R. Milincic, J. Busenitz, C. Mariani, A. Minotti, Josef Jochum, Ernesto Kemp, Cécile Jollet, H. P. Lima, L. B. Bezrukov, M. Obolensky, Manfred Lindner, E. Blucher, Maury Goodman, S. V. Sukhotin, Stephen Robert Wagner, Laboratoire de physique subatomique et des technologies associées ( SUBATECH ), IMT Atlantique Bretagne-Pays de la Loire ( IMT Atlantique ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Nantes ( UN ), Institut Pluridisciplinaire Hubert Curien ( IPHC ), Centre National de la Recherche Scientifique ( CNRS ) -Université de Strasbourg ( UNISTRA ), AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Institut de Recherches sur les lois Fondamentales de l'Univers ( IRFU ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay, Double Chooz, Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - Faculté des Sciences et des Techniques, Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Abrahao, T, Almazan, H, Anjos, J, Appel, S, Bekman, I, Bezerra, T, Bezrukov, L, Blucher, E, Brugiere, T, Buck, C, Busenitz, J, Cabrera, A, Camilleri, L, Cerrada, M, Chauveau, E, Chimenti, P, Corpace, O, Crespo-Anadon, J, Dawson, J, Djurcic, Z, Etenko, A, Fallot, M, Franco, D, Furuta, H, Gil-Botella, I, Givaudan, A, Gomez, H, Gonzalez, L, Goodman, M, Hara, T, Haser, J, Hellwig, D, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kale, K, Kampmann, P, Kaneda, M, Kawasaki, T, Kemp, E, De Kerret, H, Kryn, D, Kuze, M, Lachenmaier, T, Lane, C, Lasserre, T, Lastoria, C, Lhuillier, D, Lima, H, Lindner, M, Lopez-Castano, J, Losecco, J, Lubsandorzhiev, B, Maeda, J, Mariani, C, Maricic, J, Matsubara, T, Mention, G, Meregaglia, A, Miletic, T, Milincic, R, Minotti, A, Navas-Nicolas, D, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Oralbaev, A, Palomares, C, Pepe, I, Pronost, G, Reinhold, B, Santorelli, R, Schonert, S, Schoppmann, S, Settimo, M, Sharankova, R, Sibille, V, Sinev, V, Skorokhvatov, M, Soldin, P, Stahl, A, Stancu, I, Stokes, L, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Tonazzo, A, Veyssiere, C, Viaud, B, Vivier, M, Wagner, S, Wiebusch, C, Yang, G, Yermia, F, Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: data analysis method, gas and liquid scintillators), Physics - Instrumentation and Detectors, Computer science, Physics::Instrumentation and Detectors, scintillation counter: liquid, shape analysis, FOS: Physical sciences, CHOOZ, Scintillator, power spectrum, 01 natural sciences, NO, High Energy Physics - Experiment, Neutrino detector, Particle identification methods, Particle identification method, High Energy Physics - Experiment (hep-ex), Fourier transformation, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], 0103 physical sciences, Digital signal processing (DSP), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Neutrino detectors, ddc:610, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Instrumentation, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Mathematical Physics, Scintillation, Digital signal processing (DSP), Neutrino detectors, Particle identification methods, Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators), 010308 nuclear & particles physics, background, Detector, Spectral density, Ranging, Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators), Instrumentation and Detectors (physics.ins-det), sensitivity, Double Chooz, scintillation and light emission processes (solid, Scintillators, High Energy Physics::Experiment, Algorithm, performance, Shape analysis (digital geometry)
Abstract: Liquid scintillators are a common choice for neutrino physics experiments, but their capabilities to perform background rejection by scintillation pulse shape discrimination is generally limited in large detectors. This paper describes a novel approach for a pulse shape based event classification developed in the context of the Double Chooz reactor antineutrino experiment. Unlike previous implementations, this method uses the Fourier power spectra of the scintillation pulse shapes to obtain event-wise information. A classification variable built from spectral information was able to achieve an unprecedented performance, despite the lack of optimization at the detector design level. Several examples of event classification are provided, ranging from differentiation between the detector volumes and an efficient rejection of instrumental light noise, to some sensitivity to the particle type, such as stopping muons, ortho-positronium formation, alpha particles as well as electrons and positrons. In combination with other techniques the method is expected to allow for a versatile and more efficient background rejection in the future, especially if detector optimization is taken into account at the design level., 27 pages, 14 figures
Published: 2018

38. Belle II Silicon Vertex Detector (SVD)

Author: To. Baroncelli, Keigo Hara, S. R. Chendvankar, K. Adamczyk, Gagan Bihari Mohanty, A. Profeti, K. K. Rao, Ti. Baroncelli, Satoshi Tanaka, A. Martini, Rakesh Kumar, K. H. Kang, Filippo Bosi, F. Buchsteiner, J. Wiechczynski, Dipanwita Dutta, T. Bilka, T. Lueck, A. Paladino, Y. Onuki, K. Nakamura, M. Rozanska, G. Rizzo, D. Červenkov, Jakub Kandra, F. Forti, M. Watanabe, A. Bauer, R. Thomas, T. Morii, W. Kun, N. Dash, G. Casarosa, Seema Bahinipati, L. Bosisio, A. K. Basith, Steven Williams, P. K. Resmi, E. L. Barberio, Masatoshi Maki, C. W. Joo, E. Paoloni, J. Lettenbicher, S. T. Divekar, A. Bozek, S. Koike, Shih-Chang Lee, V. Babu, T. Yoshinobu, Hitoshi Yamamoto, T. Kohriki, Peter Kodys, Phillip Urquijo, R. Thalmeier, L. Zani, L. Bulla, S. Bacher, I. Komarov, Z. Doležal, H. Yin, S. N. Mayekar, Corrado Angelini, Fabrizio Giulio Luca Pilo, G. Batignani, Tariq Aziz, J. Stypula, Peter Kvasnicka, M. Ceccanti, N. Sato, Christian Irmler, N. Kambara, B. Bhuyan, G. N. Taylor, W. Ostrowicz, I. J. Watson, M. M. Kolwalkar, J. Suzuki, I. Rashevskaya, Thomas Bergauer, H. Aihara, S. Schultschik, S. Bettarini, G. De Pietro, Markus Friedl, H. Park, P. Mammini, Satoru Uozumi, Jun Sasaki, Saraju P. Mohanty, T. Horiguchi, B. Würkner, Prafulla Kumar Behera, B. Gobbo, J. Libby, C. Schwanda, Z. Natkaniec, Y. Seino, Takeo Kawasaki, Shoichi Watanuki, Takuya Higuchi, H. B. Jeon, A. Ishikawa, T. Tsuboyama, John Webb, L. Vitale, Noritaka Shimizu, L. Lanceri, Zhen-An Liu, Bahinipati, S., Adamczyk, K., Aihara, H., Angelini, C., Aziz, T., Babu, V., Bacher, S., Barberio, E., Baroncelli, Ti., Baroncelli, To., Basith, A. K., Batignani, G., Bauer, A., Behera, P. K., Bergauer, T., Bettarini, S., Bhuyan, B., Bilka, T., Bosi, F., Bosisio, L., Bozek, A., Buchsteiner, F., Bulla, L., Casarosa, G., Ceccanti, M., Červenkov, D., Chendvankar, S. R., Dash, N., De Pietro, G., Divekar, S. T., Doležal, Z., Dutta, D., Forti, F., Friedl, M., Gobbo, B., Hara, K., Higuchi, T., Horiguchi, T., Irmler, C., Ishikawa, A., Jeon, H. B., Joo, C., Kandra, J., Kambara, N., Kang, K. H., Kawasaki, T., Kodyš, P., Kohriki, T., Koike, S., Kolwalkar, M. M., Komarov, I., Kumar, R., Kun, W., Kvasnička, P., Lanceri, L., Lettenbicher, J., Libby, J., Lee, S. C., Lueck, T., Maki, M., Mammini, P., Martini, A., Mayekar, S. N., Mohanty, G. B., Mohanty, S., Morii, T., Nakamura, K. R., Natkaniec, Z., Onuki, Y., Ostrowicz, W., Paladino, A., Paoloni, E., Park, H., Pilo, F., Profeti, A., Rashevskaya, I., Rao, K. K., Rizzo, G., Resmi, P. K., Rozanska, M., Sasaki, J., Sato, N., Schultschik, S., Schwanda, C., Seino, Y., Shimizu, N., Stypula, J., Suzuki, J., Tanaka, S., Taylor, G. N., Thalmeier, R., Thomas, R., Tsuboyama, T., Uozumi, S., Urquijo, P., Vitale, L., Watanuki, S., Watanabe, M., Watson, I. J., Webb, J., Wiechczynski, J., Williams, S., Würkner, B., Yamamoto, H., Yin, H., Yoshinobu, T., and Zani, L.
Subjects: Physics, business.industry, Bandwidth (signal processing), Flash ADC, Computational science, Physics and Astronomy (all), Data acquisition, Analog signal, Parasitic capacitance, Application-specific integrated circuit, Computer data storage, Singular value decomposition, business
Abstract: The Belle II experiment at the SuperKEKB collider in Japan will operate at an unprecedented luminosity of $8\,\times \,10^{35}$ cm$^{-2}$s$^{-1}$, about 40 times larger than its predecessor, Belle. Its vertex detector is composed of a two-layer DEPFET pixel detector (PXD) and a four layer double-sided silicon microstrip detector (SVD). To achieve a precise decay-vertex position determination and excellent low-momentum tracking under a harsh background condition and high trigger rate of 10 kHz, the SVD employs several innovative techniques. In order to minimize the parasitic capacitance in the signal path, 1748 APV25 ASIC chips, which read out signal from 224 k strip channels, are directly mounted on the modules with the novel Origami concept. The analog signal from APV25 are digitized by a flash ADC system, and sent to the central DAQ as well as to online tracking system based on SVD hits to provide region of interests to the PXD for reducing the latter’s data size to achieve the required bandwidth and data storage space. Furthermore, the state-of-the-art dual phase $\hbox {CO}_2$ cooling solution has been chosen for a combined thermal management of the PXD and SVD system. In this proceedings, we present key design principles, module construction and integration status of the Belle II SVD.
Published: 2018

39. Neutrino physics for Korean diplomacy

Author: F. Suekane, Yuen Keung Hor, Soo-Bong Kim, Takeo Kawasaki, J. P. Coleman, Giorgio Gratta, Antonin Vacheret, K. Nakajima, Wei Wang, R. Carr, Manfred Lindner, Seon Hee Seo, John G. Learned, K. M. Heeger, Yeongduk Kim, Patrick Huber, and Liang Zhan
Subjects: Physics, Discrete mathematics, Multidisciplinary, Daya bay, 0103 physical sciences, 02 engineering and technology, Neutrino, 021001 nanoscience & nanotechnology, 010306 general physics, 0210 nano-technology, 01 natural sciences
Abstract: Continued diplomatic progress with North Korea will be a journey of many steps, as A. Glaser and Z. Mian describe in their Policy Forum “Denuclearizing North Korea: A verified, phased approach” (7 September, p. [981][1]). Leaders in North Korea, South Korea, and the United States agree that one step could be dismantlement or civilian repurposing of the nuclear reactors at Yongbyon. We propose a cooperative method for verifying reactor shutdown or conversion. The key tools are meter-scale, field-deployable detectors that track neutrino emissions from reactor cores. Neutrino detectors can track power levels and fuel evolution in nuclear reactors, as experiments in South Korea, China, Russia, the United States, and Europe have demonstrated ([ 1 ][2]–[ 7 ][3]). At Yongbyon, neutrino detectors could be deployed to verify reactor shutdown or civilian operations without the need for operational records or access inside reactor buildings. Shutdown of North Korea's main plutonium production reactor could be verified with a detector in a standard freight container parked outside the reactor building. Existing neutrino technology may be attractive to all parties in the ongoing talks. North Korea may value a tool for demonstrating treaty compliance while maintaining custody of the reactor buildings. Other parties may value the tamper resistance of the neutrino signal and resilience of neutrino detectors, which require minimal on-site access and can reconstruct reactor operational history even after a data-taking pause. Neutrino projects are also a natural opportunity to strengthen relations between North and South Korea and to build international scientific ties. South Korea has an active neutrino community and could choose to deploy a counterpart to a Yongbyon-based detector at one of its own reactors. Resulting scientific collaboration could benefit Korea and the world. We encourage policy-makers to consider neutrino detectors as one step toward stability and security on the Korean Peninsula. 1. [↵][4]1. Y. J. Ko et al. (NEOS Collaboration), Phys. Rev. Lett. 118, 121802 (2017). [OpenUrl][5] 2. 1. F. P. An et al. (Daya Bay Collaboration), Phys. Rev. Lett. 118, 251801 (2017). [OpenUrl][6] 3. 1. I. Alekseev et al. (DANSS Collaboration), arXiv:1804.04046 (2018). 4. 1. G. Bak et al. (RENO Collaboration), arXiv:1806.00574 (2018). 5. 1. J. Ashenfelter et al. (PROSPECT Collaboration), arXiv:1806.02784 (2018). 6. 1. N.S. Bowden et al. (SONGS Collaboration), J. Appl. Phys. 105, 064902 (2009). [OpenUrl][7] 7. [↵][8]1. G. Boireau et al. (Nucifer Collaboration), Phys. Rev. D 93, 112006 (2016). [OpenUrl][9] [1]: http://science.sciencemag.org/content/361/6406/981 [2]: #ref-1 [3]: #ref-7 [4]: #xref-ref-1-1 "View reference 1 in text" [5]: {openurl}?query=rft.jtitle%253DPhys.%2BRev.%2BLett.%26rft.volume%253D118%26rft.spage%253D121802%26rft.genre%253Darticle%26rft_val_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Ajournal%26ctx_ver%253DZ39.88-2004%26url_ver%253DZ39.88-2004%26url_ctx_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Actx [6]: {openurl}?query=rft.jtitle%253DPhys.%2BRev.%2BLett.%26rft.volume%253D118%26rft.spage%253D251801%26rft.genre%253Darticle%26rft_val_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Ajournal%26ctx_ver%253DZ39.88-2004%26url_ver%253DZ39.88-2004%26url_ctx_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Actx [7]: {openurl}?query=rft.jtitle%253DJ.%2BAppl.%2BPhys.%26rft.volume%253D105%26rft.spage%253D064902%26rft.genre%253Darticle%26rft_val_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Ajournal%26ctx_ver%253DZ39.88-2004%26url_ver%253DZ39.88-2004%26url_ctx_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Actx [8]: #xref-ref-7-1 "View reference 7 in text" [9]: {openurl}?query=rft.jtitle%253DPhys.%2BRev.%2BD%26rft.volume%253D93%26rft.spage%253D112006%26rft.genre%253Darticle%26rft_val_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Ajournal%26ctx_ver%253DZ39.88-2004%26url_ver%253DZ39.88-2004%26url_ctx_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Actx
Published: 2018

40. Cosmic-muon characterization and annual modulation measurement with Double Chooz detectors

Author: I. Gil-Botella, A.V. Etenko, C. Veyssiere, Tobias Lachenmaier, Daniel M. Kaplan, M. Kaneda, T. Miletic, A. Minotti, Michael Wurm, B. Reinhold, B. Svoboda, M. Obolensky, F. Yermia, K. Kale, I. Stancu, T. Hara, Manfred Lindner, Z. Djurcic, Achim Stahl, A. Oralbaev, E. Blucher, E. Chauveau, Masahiro Kuze, V. Sinev, Luis González, Ernesto Kemp, H. Gomez, V. Sibille, C. Lastoria, G. Mention, M. Skorokhvatov, S. Appel, Lydie Giot, J. Jochum, C. Mariani, Cécile Jollet, M. Gögger-Neff, J. M. López-Castaño, S. V. Sukhotin, Christopher Wiebusch, Maury Goodman, Muriel Fallot, Anatael Cabrera, A. Givaudan, P. Chimenti, Masaki Ishitsuka, J. Dhooghe, J. Maeda, T.J.C. Bezerra, G. Pronost, T. Matsubara, H. de Kerret, J. Maricic, J.V. Dawson, D. Franco, O. Corpace, I. M. Pepe, R. Santorelli, D. Navas-Nicolás, J. I. Crespo-Anadón, A. Hourlier, V. Zimmer, M. Cerrada, R. Carr, Y. Sakamoto, J. Busenitz, Stephen Robert Wagner, Eric Baussan, Christian Buck, B. Rybolt, F. Suekane, J. C. dos Anjos, P. Novella, M. Soiron, L.F.F. Stokes, T. Sumiyoshi, J. Haser, D. Lhuillier, A. Tonazzo, D. Kryn, L. Oberauer, I. Bekman, T. Abrahão, G. Yang, M. Vivier, B. K. Lubsandorzhiev, Stefan Schoppmann, Anselmo Meregaglia, M. Franke, Ying Sun, P. Soldin, C. E. Lane, Stefan Schönert, Yasushi Nagasaka, John M. LoSecco, T. Brugière, H. Almazan, P. Kampmann, D. Hellwig, H. P. Lima, T. Laserre, M. Dracos, Matthew L Strait, L. Camilleri, Takeo Kawasaki, C. Palomares, A. Onillon, R. Sharankova, H. Furuta, L. B. Bezrukov, Abrahao, T, Almazan, H, Dos Anjos, J, Appel, S, Baussan, E, Bekman, I, Bezerra, T, Bezrukov, L, Blucher, E, Brugiere, T, Buck, C, Busenitz, J, Cabrera, A, Camilleri, L, Carr, R, Cerrada, M, Chauveau, E, Chimenti, P, Corpace, O, Crespo-Anadon, J, Dawson, J, Dhooghe, J, Djurcic, Z, Dracos, M, Etenko, A, Fallot, M, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Givaudan, A, Gogger-Neff, M, Gomez, H, Gonzalez, L, Goodman, M, Hara, T, Haser, J, Hellwig, D, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kale, K, Kampmann, P, Kaneda, M, Kaplan, D, Kawasaki, T, Kemp, E, De Kerret, H, Kryn, D, Kuze, M, Lachenmaier, T, Lane, C, Laserre, T, Lastoria, C, Lhuillier, D, Lima, H, Lindner, M, Lopez-Castano, J, Losecco, J, Lubsandorzhiev, B, Maeda, J, Mariani, C, Maricic, J, Matsubara, T, Mention, G, Meregaglia, A, Miletic, T, Minotti, A, Nagasaka, Y, Navas-Nicolas, D, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Oralbaev, A, Palomares, C, Pepe, I, Pronost, G, Reinhold, B, Rybolt, B, Sakamoto, Y, Santorelli, R, Schonert, S, Schoppmann, S, Sharankova, R, Sibille, V, Sinev, V, Skorokhvatov, M, Soiron, M, Soldin, P, Stahl, A, Stancu, I, Stokes, L, Strait, M, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, B, Tonazzo, A, Veyssiere, C, Vivier, M, Wagner, S, Wiebusch, C, Wurm, M, Yang, G, Yermia, F, Zimmer, V, Institut Pluridisciplinaire Hubert Curien (IPHC), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), APC - Neutrinos, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Double Chooz, Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AstroParticule et Cosmologie (APC (UMR_7164)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris
Subjects: Particle physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, cosmic ray experiment, CHOOZ, 01 natural sciences, Measure (mathematics), High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Modulation (music), ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Physics, COSMIC cancer database, Muon, 010308 nuclear & particles physics, Detector, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), Effective temperature, Neutrino detector, neutrino detector, High Energy Physics::Experiment
Abstract: A study on cosmic muons has been performed for the two identical near and far neutrino detectors of the Double Chooz experiment, placed at $\sim$120 and $\sim$300 m.w.e. underground respectively, including the corresponding simulations using the MUSIC simulation package. This characterization has allowed to measure the muon flux reaching both detectors to be (3.64 $\pm$ 0.04) $\times$ 10$^{-4}$ cm$^{-2}$s$^{-1}$ for the near detector and (7.00 $\pm$ 0.05) $\times$ 10$^{-5}$ cm$^{-2}$s$^{-1}$ for the far one. The seasonal modulation of the signal has also been studied observing a positive correlation with the atmospheric temperature, leading to an effective temperature coefficient of $\alpha_{T}$ = 0.212 $\pm$ 0.024 and 0.355 $\pm$ 0.019 for the near and far detectors respectively. These measurements, in good agreement with expectations based on theoretical models, represent one of the first measurements of this coefficient in shallow depth installations., Comment: 20 pages, 11 figures
Published: 2017

41. Study of spatial resolution of proton computed tomography using a silicon strip detector

Author: Y. Saraya, T. Kimura, J. Goto, Takuji Izumikawa, and Takeo Kawasaki
Subjects: Physics, Nuclear and High Energy Physics, Electron density, Silicon, Proton, business.industry, Detector, chemistry.chemical_element, Nuclear magnetic resonance, Optics, Quality (physics), chemistry, Trajectory, Physics::Accelerator Physics, business, Instrumentation, Image resolution, Beam (structure)
Abstract: Proton computed tomography (CT) is an imaging technique using a high-energy proton beam penetrating the human body and shows promise for improving the quality of cancer therapy with high-energy particle beams because more accurate electron density distribution measurements can be achieved with proton CT. The deterioration of the spatial resolution owing to multiple Coulomb scattering is, however, a crucial issue. The control of the radiation dose and the long exposure time are also problems to be solved. We have developed a prototype system for proton CT with a silicon strip detector and performed a beam test for imaging. The distribution of the electron density has been measured precisely. We also demonstrated an improvement in spatial resolution by reconstructing the proton trajectory. A spatial resolution of 0.45 mm is achieved for a 25-mm-thick polyethylene object. This will be a useful result for upgrading proton CT application for practical use.
Published: 2014

42. Muon capture on light isotopes measured with the Double Chooz detector

Author: A. Hourlier, L. B. Bezrukov, Eric Baussan, T. Brugière, S. M. Fernandes, J. Reichenbacher, A.V. Etenko, D. Hellwig, I. Stancu, L. Camilleri, T. Hara, C. Veyssiere, R. Carr, H. Furuta, G. Mention, Anatael Cabrera, J. C. dos Anjos, D. Shrestha, A. Onillon, M. H. Shaevitz, M. Vivier, J. M. LoSecco, C. Alt, Yoshio Abe, Anselmo Meregaglia, J. Spitz, H. Gomez, E. Conover, V. Zimmer, Amanda Porta, Marcos Cerrada, G. A. Horton-Smith, C. Mariani, H. P. Lima, H. de Kerret, G. Yang, J. Maeda, Josef Jochum, BayarJon Paul Lubsandorzhiev, A.C. Schilithz, I. Bekman, V. Sibille, S. Appel, I. Gil-Botella, N. Vassilopoulos, R. Roncin, J.V. Dawson, S. Perasso, L. Goodenough, Luis González, F. von Feilitzsch, J. Busenitz, R. Santorelli, J. M. López-Castaño, M. Kaneda, Muriel Fallot, B. Reinhold, A. Tonazzo, F. Yermia, Audrey Letourneau, Janet Conrad, E. Damon, E. Blucher, Y. Sakamoto, T. Miletic, Zelimir Djurcic, Matthew L Strait, T. Abrahão, Y. Kamyshkov, M. Franke, R. Svoboda, Masahiro Kuze, Florian Kaether, J. Felde, J. Dhooghe, G. Pronost, F. Suekane, M. Obolensky, L.F.F. Stokes, P. Novella, T. Sumiyoshi, D. Franco, J. Martino, David Lhuillier, V. V. Sinev, N. Walsh, E. Kemp, M. Röhling, Takeo Kawasaki, A. Minotti, I. M. Pepe, P. Chimenti, Lydie Giot, A. Stahl, Lothar Oberauer, T. Matsubara, M. Göger-Neff, R. Milincic, E. Chauveau, Cécile Jollet, S. Schönert, A. Osborn, Yasushi Nagasaka, Daniel M. Kaplan, Stefan Schoppmann, H. Almazan, C. E. Lane, Masaki Ishitsuka, J. Maricic, Tobias Lachenmaier, V. Fischer, Y. Sun, Stephen Robert Wagner, Marcos Dracos, M. Bergevin, S. V. Sukhotin, E. Smith, N. Haag, K. Crum, J. I. Crespo-Anadón, S. Lucht, R. Sharankova, Diana Navas-Nicolas, C. Palomares, Michael Hofmann, Christian Buck, L. N. Kalousis, T.J.C. Bezerra, D. Dietrich, Kazuhiro Terao, A. S. Cucoanes, Christopher Wiebusch, G. A. Valdiviesso, M. C. Goodman, J. Haser, M. D. Skorokhvatov, Michael Wurm, H. Watanabe, Thierry Lasserre, J. C. Barriere, D. Kryn, M. Soiron, H. H. Trinh Thi, Manfred Lindner, Antoine Collin, B. Rybolt, Abe, Y, Abrahao, T, Almazan, H, Alt, C, Appel, S, Barriere, J, Baussan, E, Bekman, I, Bergevin, M, Bezerra, T, Bezrukov, L, Blucher, E, Brugiere, T, Buck, C, Busenitz, J, Cabrera, A, Camilleri, L, Carr, R, Cerrada, M, Chauveau, E, Chimenti, P, Collin, A, Conover, E, Conrad, J, Crespo-Anadon, J, Crum, K, Cucoanes, A, Damon, E, Dawson, J, De Kerret, H, Dhooghe, J, Dietrich, D, Djurcic, Z, Dos Anjos, J, Dracos, M, Etenko, A, Fallot, M, Felde, J, Fernandes, S, Fischer, V, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Goger-Neff, M, Gomez, H, Gonzalez, L, Goodenough, L, Goodman, M, Haag, N, Hara, T, Haser, J, Hellwig, D, Hofmann, M, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaneda, M, Kaplan, D, Kawasaki, T, Kemp, E, Kryn, D, Kuze, M, Lachenmaier, T, Lane, C, Lasserre, T, Letourneau, A, Lhuillier, D, Lima, H, Lindner, M, Lopez-Castano, J, Losecco, J, Lubsandorzhiev, B, Lucht, S, Maeda, J, Mariani, C, Maricic, J, Martino, J, Matsubara, T, Mention, G, Meregaglia, A, Miletic, T, Milincic, R, Minotti, A, Nagasaka, Y, Navas-Nicolas, D, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Osborn, A, Palomares, C, Pepe, I, Perasso, S, Porta, A, Pronost, G, Reichenbacher, J, Reinhold, B, Rohling, M, Roncin, R, Rybolt, B, Sakamoto, Y, Santorelli, R, Schilithz, A, Schonert, S, Schoppmann, S, Shaevitz, M, Sharankova, R, Shrestha, D, Sibille, V, Sinev, V, Skorokhvatov, M, Smith, E, Soiron, M, Spitz, J, Stahl, A, Stancu, I, Stokes, L, Strait, M, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, R, Terao, K, Tonazzo, A, Trinh Thi, H, Valdiviesso, G, Vassilopoulos, N, Veyssiere, C, Vivier, M, Von Feilitzsch, F, Wagner, S, Walsh, N, Watanabe, H, Wiebusch, C, Wurm, M, Yang, G, Yermia, F, and Zimmer, V
Subjects: Physics, Semileptonic decay, Particle physics, education.field_of_study, Muon, 010308 nuclear & particles physics, Population, neutrino physic, 01 natural sciences, Muon capture, Nuclear physics, 13. Climate action, 0103 physical sciences, High Energy Physics::Experiment, Neutron, Production (computer science), Neutrino, 010306 general physics, Ground state, education
Abstract: Using the Double Chooz detector, designed to measure the neutrino mixing angle $\theta_{13}$, the products of $\mu^-$ capture on $^{12}$C, $^{13}$C, $^{14}$N and $^{16}$O have been measured. Over a period of 489.5 days, $2.3\times10^6$ stopping cosmic $\mu^-$ have been collected, of which $1.8\times10^5$ captured on carbon, nitrogen, or oxygen nuclei in the inner detector scintillator or acrylic vessels. The resulting isotopes were tagged using prompt neutron emission (when applicable), the subsequent beta decays, and, in some cases, $\beta$-delayed neutrons. The most precise measurement of the rate of $^{12}\mathrm C(\mu^-,\nu)^{12}\mathrm B$ to date is reported: $6.57^{+0.11}_{-0.21}\times10^{3}\,\mathrm s^{-1}$, or $(17.35^{+0.35}_{-0.59})\%$ of nuclear captures. By tagging excited states emitting gammas, the ground state transition rate to $^{12}$B has been determined to be $5.68^{+0.14}_{-0.23}\times10^3\,\mathrm s^{-1}$. The heretofore unobserved reactions $^{12}\mathrm C(\mu^-,\nu\alpha)^{8}\mathrm{Li}$, $^{13}\mathrm C(\mu^-,\nu\mathrm n\alpha)^{8}\mathrm{Li}$, and $^{13}\mathrm C(\mu^-,\nu\mathrm n)^{12}\mathrm B$ are measured. Further, a population of $\beta$n decays following stopping muons is identified with $5.5\sigma$ significance. Statistics limit our ability to identify these decays definitively. Assuming negligible production of $^{8}$He, the reaction $^{13}\mathrm C(\mu^-,\nu\alpha)^{9}\mathrm{Li}$ is found to be present at the $2.7\sigma$ level. Limits are set on a variety of other processes.
Published: 2016

43. A bonding study toward the quality assurance of Belle-II silicon vertex detector modules

Author: Prafulla Kumar Behera, Satoru Uozumi, T. Horiguchi, Kiyoshi Tanida, S. Bacher, E. Kato, Z. Doležal, Antonio Paladino, H. Park, A. Bozek, John Webb, L. Vitale, Z. Natkaniec, Fabrizio Giulio Luca Pilo, S. Sandilya, S. Bettarini, I. Rashevskaia, K. Adamczyk, B. Bhuyan, D. Červenkov, M. Volpi, Takuya Higuchi, Tariq Aziz, Y. Onuki, R. Thomas, T. Morii, Saraju P. Mohanty, H. Aihara, Thomas Bergauer, C. W. Joo, Gagan Bihari Mohanty, Filippo Bosi, M. M. Kolwalkar, N. K. Nisar, E. L. Barberio, Giulia Casarosa, T. Bilka, S. T. Divekar, C. Schwanda, To. Baroncelli, T. Tsuboyama, J. Wiechczynski, Phillip Urquijo, K. Hara, Noriaki K. Sato, W. Ostrowicz, A. Profeti, Satoshi Tanaka, Dipanwita Dutta, N. Shimizu, G. Batignani, J. Stypula, Eugenio Paoloni, Jun Sasaki, B. Würkner, G. Rizzo, N. Dash, Markus Friedl, S. R. Chendvankar, Steven Williams, L. Lanceri, A. K. Basith, M. Rozanska, K. Nakamura, K. K. Rao, V. Babu, Y. Seino, J. Lettenbicher, Takeo Kawasaki, Shoichi Watanuki, T. Kohriki, Jakub Kandra, R. Thalmeier, F. Forti, F. Buchsteiner, L. Bosisio, I. J. Watson, Corrado Angelini, S. Koike, Peter Kodys, S. N. Mayekar, Christian Irmler, K. Negishi, M. Ceccanti, H. Yin, Hitoshi Yamamoto, P. Mammini, G. N. Taylor, S. Schultschik, T. Yoshinobu, A. Bauer, K. H. Kang, Seema Bahinipati, Peter Kvasnicka, H. B. Jeon, A. Ishikawa, Kang, K. H., Jeon, H. B., Park, H, Uozumi, S., Adamczyk, K., Aihara, H., Angelini, C., Aziz, T., Babu, V., Bacher, S., Bahinipati, S., Barberio, E., Baroncelli, T., Basith, A. K., Batignani, G., Bauer, A., Behera, P. K., Bergauer, T., Bettarini, S., Bhuyan, B., Bilka, T., Bosi, F., Bosisio, L., Bozek, A., Buchsteiner, F., Casarosa, G., Ceccanti, M., Červenkov, D., Chendvankar, S. R., Dash, N., Divekar, S. T., Doležal, Z., Dutta, D., Forti, F., Friedl, M., Hara, K., Higuchi, T., Horiguchi, T., Irmler, C., Ishikawa, A., Joo, C. W., Kandra, J., Kato, E., Kawasaki, T., Kodyš, P., Kohriki, T., Koike, S., Kolwalkar, M. M., Kvasnička, P., Lanceri, Livio, Lettenbicher, J., Mammini, P., Mayekar, S. N., Mohanty, G. B., Mohanty, S., Morii, T., Nakamura, K. R., Natkaniec, Z., Negishi, K., Nisar, N. K., Onuki, Y., Ostrowicz, W., Paladino, A., Paoloni, E., Pilo, F., Profeti, A., Rao, K. K., Rashevskaia, I., Rizzo, G., Rozanska, M., Sandilya, S., Sasaki, J., Sato, N., Schultschik, S., Schwanda, C., Seino, Y., Shimizu, N., Stypula, J., Tanaka, S., Tanida, K., Taylor, G. N., Thalmeier, R., Thomas, R., Tsuboyama, T., Urquijo, P., Vitale, Lorenzo, Volpi, M., Watanuki, S., Watson, I. J., Webb, J., Wiechczynski, J., Williams, S., Würkner, B., Yamamoto, H., Yin, H., and Yoshinobu, T.
Subjects: Physics, Wire bonding, Nuclear and High Energy Physics, Silicon, business.industry, Instrumentation, Detector, chemistry.chemical_element, Belle-II, DSSD, Origami, Pitch adapter, SVD, Signal, Noise (electronics), Flexible electronics, Signal-to-noise ratio, chemistry, Belle-II, DSSD, Origami, Pitch adapter, SVD, Wire bonding, Instrumentation, Nuclear and High Energy Physics, Optoelectronics, business
Abstract: A silicon vertex detector (SVD) for the Belle-II experiment comprises four layers of double-sided silicon strip detectors (DSSDs), assembled in a ladder-like structure. Each ladder module of the outermost SVD layer has four rectangular and one trapezoidal DSSDs supported by two carbon-fiber ribs. In order to achieve a good signal-to-noise ratio and minimize material budget, a novel chip-on-sensor “Origami” method has been employed for the three rectangular sensors that are sandwiched between the backward rectangular and forward (slanted) trapezoidal sensors. This paper describes the bonding procedures developed for making electrical connections between sensors and signal fan-out flex circuits (i.e., pitch adapters), and between pitch adapters and readout chips as well as the results in terms of the achieved bonding quality and pull force.
Published: 2016

44. Belle II silicon vertex detector

Author: C. W. Joo, K. Adamczyk, N. Dash, A. K. Basith, M. Rozanska, J. Suzuki, S. Bacher, J. Lettenbicher, V. Babu, Ti. Baroncelli, R. Thalmeier, Jun Sasaki, T. Yoshinobu, Masatoshi Maki, Takeo Higuchi, A. Bozek, H. Yin, B. Würkner, T. Kohriki, Filippo Bosi, S. N. Mayekar, Y. Onuki, P. Mammini, Kazuhiko Hara, T. Bilka, Seema Bahinipati, R. Thomas, T. Morii, Antonio Paladino, Toru Tsuboyama, J. Wiechczynski, K. Nakamura, Tariq Aziz, Y. Seino, Satoru Uozumi, G. Batignani, Peter Kvasnicka, J. Stypula, Jakub Kandra, Fabrizio Giulio Luca Pilo, E. L. Barberio, S. Schultschik, N. K. Nisar, Takeo Kawasaki, Shoichi Watanuki, F. Forti, Eugenio Paoloni, Markus Friedl, L. Bosisio, John Webb, To. Baroncelli, I. Rashevskaya, T. Horiguchi, L. Vitale, G. N. Taylor, H. Park, K. H. Kang, Z. Natkaniec, Giulia Casarosa, H. B. Jeon, Dipanwita Dutta, B. Bhuyan, Kiyoshi Tanida, A. Ishikawa, S. T. Divekar, W. Ostrowicz, F. Buchsteiner, N. Shimizu, M. Volpi, Phillip Urquijo, A. Bauer, M. Ceccanti, Thomas Bergauer, Satoshi Tanaka, I. J. Watson, D. Červenkov, Hitoshi Yamamoto, K. Enami, N. Sato, L. Lanceri, S. Koike, G. Rizzo, Peter Kodys, E. Kato, H. Aihara, S. Bettarini, Steven Williams, Saraju P. Mohanty, S. Sandilya, C. Schwanda, K. Negishi, Z. Doležal, Gagan Bihari Mohanty, Corrado Angelini, A. Profeti, Christian Irmler, Prafulla Kumar Behera, S. R. Chendvankar, K. K. Rao, and M. M. Kolwalkar
Subjects: Nuclear and High Energy Physics, APV25 chip, Belle II, CO2 cooling, Origami assembly, SVD, Instrumentation, Physics::Instrumentation and Detectors, Hadron, Tracking (particle physics), 01 natural sciences, Microstrip, law.invention, Optics, law, 0103 physical sciences, Charm (quantum number), 010306 general physics, Collider, Physics, 010308 nuclear & particles physics, business.industry, Charged particle, High Energy Physics::Experiment, Subatomic particle, business
Abstract: The Belle II experiment at the SuperKEKB collider in Japan is designed to indirectly probe new physics using approximately 50 times the data recorded by its predecessor. An accurate determination of the decay-point position of subatomic particles such as beauty and charm hadrons as well as a precise measurement of low-momentum charged particles will play a key role in this pursuit. These will be accomplished by an inner tracking device comprising two layers of pixelated silicon detector and four layers of silicon vertex detector based on double-sided microstrip sensors. We describe herein the design, prototyping and construction efforts of the Belle-II silicon vertex detector.
Published: 2016

45. Malignant melanoma with preserved hairs: A snap shot could suggest the development from an acquired melanocytic nevus

Author: Hidenori Takahashi, Akiteru Takeuchi, Takeo Kawasaki, Masanobu Kumakiri, Sachio Kouraba, and Takahiro Kiyohara
Subjects: Male, Pathology, medicine.medical_specialty, Skin Neoplasms, Adolescent, Dermatology, Biology, Malignant transformation, Dermis, medicine, Humans, Nevus, Forehead, skin and connective tissue diseases, Melanoma, Nevus, Pigmented, integumentary system, Snap, Nodule (medicine), General Medicine, Anatomy, Middle Aged, medicine.disease, Cell Transformation, Neoplastic, medicine.anatomical_structure, Epidermis, medicine.symptom, Hair
Abstract: A 63-year-old man presented with a dome-shaped, black nodule on his right forehead, where hairs were preserved. The black surface tone measured 7 mm in diameter and spread irregularly from the periphery of the nodule. He had been conscious of the preceding, black macule for approximately 50 years. A snap shot of the patient in adolescence showed a tiny, black macule, which was a few millimeters in diameter. Histological examination demonstrated irregular proliferation of melanoma cells from the epidermis to the dermis. Partially, there were well-circumscribed, oval nests composed of nevus cells in the acanthotic epidermis and follicles. Nevus cells were also seen in the dermal component, presenting a burnt-out appearance. In this case, the small final size, the preserved hairs and the snap shot suggested a preceding, acquired melanocytic nevus. Malignant melanoma could arise from acquired melanocytic nevus.
Published: 2010

46. Status and upgrade plans of the Belle silicon vertex detector

Author: Masashi Hazumi, L. S. Peak, Christian Irmler, G. R. Moloney, N. Tamura, M. Rosen, Daniel Robert Marlow, Marco Barbero, K. Trabelsi, M. C. Chang, K. Uchida, Hitoshi Yamamoto, T. Ziegler, Kevin Varvell, Y. Nakahama, Y. Choi, T. Higuchi, N. K. Joshi, M. Z. Wang, A. Kibayashi, S. Kajiwara, T. Kameshima, N. Tani, S. Fratina, G. N. Taylor, C. C. Wang, M. Pernicka, Y. Ushiroda, S. Koike, M. Rozanska, K. Hara, Akito Kusaka, A. Das, H. Miyake, Samo Stanič, Takeo Kawasaki, T. Hirakawa, A. M. Bakich, Z. Natkaniec, H. Steininger, Osamu Tajima, Y. Fujiyama, T. E. Browder, K. Sumisawa, S. Ono, Markus Friedl, A. Chouvikov, S. Chidzik, Samo Korpar, S. Schmid, J. Schümann, M. H. Tanaka, Y. Velikzhanin, Y. J. Kim, Hiroaki Aihara, H. Ozaki, T. Takahashi, M. Watanabe, Y. Yamashita, Nobuaki Sato, Y. Chao, T. Hara, Y. Asano, S. Okuno, Hirokazu Ishino, H. Kurashiro, P. Križan, G. S. Varner, Tsukasa Aso, T. Arakawa, H. Kakuno, Kai-Feng Chen, Kenji Hayashi, B. Harrop, J. Dalseno, J. Haba, D. Heffernan, K. Ueno, Y. Watanabe, T. Tsuboyama, and W. Ostrowicz
Subjects: Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, business.industry, Detector, Electrical engineering, Silicon vertex detector, Third generation, Nuclear physics, Upgrade, KEKB, High Energy Physics::Experiment, business, Instrumentation, Degradation (telecommunications)
Abstract: The second generation of Belle Silicon Vertex Detector (SVD) has been efficiently operated for more than three years. With increasing beam-induced background, a degradation of the detector performance is expected. To avoid such a difficulty, we are planing a next upgrade, the third generation of the SVD. Currently, its design is almost finalized.
Published: 2007

47. R&D of a pixel sensor based on fully depleted SOI technology

Author: Koichi Fukuda, Takashi Kohriki, G. S. Varner, Takeo Kawasaki, Yasuo Arai, Hirokazu Ikeda, J. Ida, Osamu Tajima, H. Miyake, Masashi Hazumi, H. Tajima, Y. Ushiroda, Yuuji Saegusa, Yoichi Ikegami, E. Martin, A. Mochizuki, Hirokazu Hayashi, Yoshinobu Unno, Kazuhiko Hara, T. Tsuboyama, Hirotaka Komatsubara, T. Takahashi, Hirokazu Ishino, Morifumi Ohno, and Susumu Terada
Subjects: Physics, Nuclear and High Energy Physics, Pixel, Silicon, Radiation sensor, business.industry, chemistry.chemical_element, Silicon on insulator, Substrate (electronics), Particle detector, Semiconductor detector, chemistry, Optoelectronics, Wafer, business, Instrumentation
Abstract: Development of a monolithic pixel detector based on SOI (silicon on insulator) technology was started at KEK in 2005. The substrate of the SOI wafer is used as a radiation sensor. At end of 2005, we submitted several test-structure group (TEG) chips for the 150 nm, fully depleted CMOS process. The TEG designs and preliminary results are presented.
Published: 2007

48. NEW RESULTS ON CP VIOLATION IN B MESON DECAY

Author: Takeo Kawasaki
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Unitarity, Cabibbo–Kobayashi–Maskawa matrix, media_common.quotation_subject, Astronomy and Astrophysics, Asymmetry, Atomic and Molecular Physics, and Optics, Belle experiment, Standard Model, law.invention, Nuclear physics, law, CP violation, B meson, Collider, media_common
Abstract: The Belle experiment has started in 1999 and has collected more than 600 fb-1 data at the ϒ(4S) resonance with the KEK-B asymmetric energy e+e- collider. In this contribution, the results of CP-violation measurement in B meson decays are presented. The large CP asymmetry arises thorough the interference between [Formula: see text] mixing and decay. The results yield constraints on the angles of the unitarity triangle, which is related to the Kobayashi-Maskawa quark mixing matrix. We discuss the status of the measurements on ϕ1, ϕ2 and ϕ3 with various methods.
Published: 2007

49. Belle II SVD ladder assembly procedure and electrical qualification

Author: K. K. Rao, M. M. Kolwalkar, B. Würkner, P. Mammini, Giulia Casarosa, S. T. Divekar, Prafulla Kumar Behera, N. K. Nisar, Phillip Urquijo, Z. Natkaniec, Kiyoshi Tanida, C. Joo, S. Bettarini, K. Negishi, D. Červenkov, E. Kato, Z. Doležal, John Webb, L. Vitale, Hiroaki Aihara, G. Batignani, G. N. Taylor, Y. Seino, J. Stypula, S. Sandilya, Satoshi Tanaka, Takeo Kawasaki, Shoichi Watanuki, F. Forti, A. Profeti, T. Aziz, T. Kohriki, Hitoshi Yamamoto, G. B. Mohanty, R. Thalmeier, K. Adamczyk, Antonio Paladino, S. Bahinipati, Federico Pilo, Jun Sasaki, Christian Irmler, F. Buchsteiner, S. N. Mayekar, G. Rizzo, Takuya Higuchi, K. Nakamura, Varghese Babu, Jakub Kandra, N. Dash, H. Yin, D. Dutta, A. K. Basith, L. Bosisio, H. B. Jeon, M. Rozanska, Noriaki K. Sato, S. Koike, A. Ishikawa, S. Bacher, Peter Kodys, J. Lettenbicher, Saraju P. Mohanty, T. Yoshinobu, M. Volpi, N. Shimizu, C. Schwanda, T. Tsuboyama, H. Park, J. Wiechczynski, A. Bozek, C. Angelini, To. Baroncelli, I. Rashevskaya, I. J. Watson, Satoru Uozumi, Eugenio Paoloni, Markus Friedl, S. R. Chendvankar, T. Horiguchi, B. Bhuyan, Thomas Bergauer, K. Hara, Y. Onuki, R. Thomas, T. Morii, E. L. Barberio, Peter Kvasnicka, K. H. Kang, A. Bauer, S. Schultschik, Steven Williams, M. Ceccanti, W. Ostrowicz, L. Lanceri, Filippo Bosi, T. Bilka, Adamczyk, K., Aihara, H., Angelini, C., Aziz, T., Babu, Varghese, Bacher, S., Bahinipati, S., Barberio, E., Baroncelli, T., Basith, A. K., Batignani, G., Bauer, A., Behera, P. K., Bergauer, T., Bettarini, S., Bhuyan, B., Bilka, T., Bosi, F., Bosisio, L., Bozek, A., Buchsteiner, F., Casarosa, G., Ceccanti, M., Červenkov, D., Chendvankar, S. R., Dash, N., Divekar, S. T., Doležal, Z., Dutta, D., Forti, F., Friedl, M., Hara, K., Higuchi, T., Horiguchi, T., Irmler, C., Ishikawa, A., Jeon, H. B., Joo, C., Kandra, J., Kang, K. H., Kato, E., Kawasaki, T., Kodyš, P., Kohriki, T., Koike, S., Kolwalkar, M. M., Kvasnička, P., Lanceri, Livio, Lettenbicher, J., Mammini, P., Mayekar, S. N., Mohanty, G. B., Mohanty, S., Morii, T., Nakamura, K. R., Natkaniec, Z., Negishi, K., Nisar, N. K., Onuki, Y., Ostrowicz, W., Paladino, A., Paoloni, E., Park, H., Pilo, F., Profeti, A., Rao, K. K., Rashevskaya, I., Rizzo, G., Rozanska, M., Sandilya, S., Sasaki, J., Sato, N., Schultschik, S., Schwanda, C., Seino, Y., Shimizu, N., Stypula, J., Tanaka, S., Tanida, K., Taylor, G. N., Thalmeier, R., Thomas, R., Tsuboyama, T., Uozumi, S., Urquijo, P., Vitale, Lorenzo, Volpi, M., Watanuki, S., Watson, I. J., Webb, J., Wiechczynski, J., Williams, S., Würkner, B., Yamamoto, H., Yin, H., and Yoshinobu, T.
Subjects: Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, media_common.quotation_subject, Detector, Hinge, Double sided silicon strip detector, Asymmetry, Belle II, Origami, Silicon vertex detector, Instrumentation, Vertex (geometry), Computational science, visual_art, Singular value decomposition, Electronic component, visual_art.visual_art_medium, CP violation, High Energy Physics::Experiment, Vertex detector, media_common
Abstract: The Belle II experiment at the SuperKEKB asymmetric e + e − collider in Japan will operate at a luminosity approximately 50 times larger than its predecessor (Belle). At its heart lies a six-layer vertex detector comprising two layers of pixelated silicon detectors (PXD) and four layers of double-sided silicon microstrip detectors (SVD). One of the key measurements for Belle II is time-dependent CP violation asymmetry, which hinges on a precise charged-track vertex determination. Towards this goal, a proper assembly of the SVD components with precise alignment ought to be performed and the geometrical tolerances should be checked to fall within the design limits. We present an overview of the assembly procedure that is being followed, which includes the precision gluing of the SVD module components, wire-bonding of the various electrical components, and precision three dimensional coordinate measurements of the jigs used in assembly as well as of the final SVD modules.
Published: 2015

50. Measurement of angle at the Belle experiment

Author: Takeo Kawasaki
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, media_common.quotation_subject, Resonance, Asymmetry, Atomic and Molecular Physics, and Optics, Belle experiment, law.invention, Nuclear physics, KEKB, law, Collider, media_common
Abstract: We present a measurement of the time-dependent CP-violating parameters in B 0 → π + π − decays with 275 millions B B ¯ pairs and B 0 → ρ ± π ± decays with 152 millions B B ¯ pairs collected with the Belle detector at the KEKB asymmetric-energy e + e − collider operating at the ϒ ( 4 S ) resonance. We observe large indirect and direct CP asymmetry and using B 0 → π + π − , we constrain ϕ 2 as 0 ° ϕ 2 19 ° and 71 ° ϕ 2 180 ° at 95.4% C.L. For B 0 → ρ ± π ± decay, although CP asymmetry is not significant due to low statistics, ϕ 2 is calculated as ϕ 2 = ( 102 ± 13 ± 15 ) ° .
Published: 2006

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