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3 results on '"Shun Watanuki"'

1. $B\rightarrow K^{(\ast)}ll$ (and$B\rightarrow X_{s}\gamma$) measurements at Belle

Author

Shun Watanuki

Subjects
Physics, Particle physics, Full data, Isospin, media_common.quotation_subject, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Asymmetry, Belle experiment, Lepton, media_common
Abstract

We report on recent measurements of flavor-changing-neutral-current $b\rightarrow s$ transitions at Belle experiment. The measure ments on lepton universality tests using $B\rightarrow K^{(\ast)}l^{+}l^{-}$ and measurements of the CP asymmetry difference ($\Delta A_{CP}$) and isospin asymmetry ($\Delta_{0-}$) using sum of exclusive $B\rightarrow X_{s}\gamma$ are reviewed. All of the measurements are performed on the full data $711fb^{-1}$ sample recorded by Belle experiment at the $\Upsilon(4S)$ resonance.

Published
2020

2. Neutron irradiation test of the fine pixel CCD vertex detector for the ILC

Author

Shunsuke Murai, Hirokazu Ikeda, Eriko Kato, A. Ishikawa, T. Horiguchi, Itaru Ushiki, Shuhei Ito, Yoshiji Yasu, Yasuhiro Sugimoto, Akiya Miyamoto, Hitoshi Yamamoto, Shinjiro Yamaguchi, Jan Strube, Shun Watanuki, Abhinav Dubey, Hisao Sato, and Constantino Calancha

Subjects
Physics, Nuclear physics, Luminosity (scattering theory), Beamline, Pixel, Proton, Physics::Instrumentation and Detectors, Neutron flux, Astrophysics::High Energy Astrophysical Phenomena, Detector, Neutron, Dark current
Abstract

The Fine Pixel CCD (FPCCD) is one of the candidate vertex detectors for the ILC. We performed neutron irradiation test of the FPCCD with CYRIC proton beam line at Tohoku University. After the irradiation of 19-year neutron fluence at the 500 GeV high luminosity ILC, the performance of the FPCCD was tested. The dark current increased but was still three order of magnitude smaller than signal charge. The fraction of hot pixels increased to 1.2 × 10−5 which is enough small for operation. Charge transfer inefficiencies for horizontal and vertical directions were measured to be 3.49 × 10−5 and 6.34 × 10−5, respectively. Even for the farthest pixel from a readout channel, 63% of signal remains after the transfer. We conclude that neutron fluence at the 500 GeV high luminosity ILC is not a problem for the FPCCD.

Published
2015

3. Search for lepton-flavor-violating $\tau$ decays into a lepton and a vector meson using the full Belle data sample

Author

Noritsugu Tsuzuki, Kenji Inami, Ichiro Adachi, Hiroaki Aihara, David Asner, Hulya Atmacan, Tagir Aushev, Rachid Ayad, Varghese Babu, swagato banerjee, Prafulla Kumar Behera, Konstantin Belous, Jake Bennett, Martin Bessner, BIPUL BHUYAN, Tadeas Bilka, Diptaparna Biswas, Denis Bodrov, Jyotirmoi Borah, Andrzej Bożek, Marko Bračko, Paolo Branchini, Browder, Thomas E., Antonio Budano, Marcello Campajola, Daniel Červenkov, C Chang, M., ByungGu Cheon, Kirill Chilikin, Kihyeon Cho, Sungjin Cho, K Choi, S., YOUNG-IL CHOI, Seema Choudhury, David Cinabro, James Cochran, Sanjeeda Bharati Das, nibedita dash, Guglielmo De Nardo, Giacomo De Pietro, Rashmi Dhamija, Francesco Di Capua, Zdeněk Doležal, Dong, T. V., David Dossett, Shawn Dubey, Denis Epifanov, Torben Ferber, Daniel Ferlewicz, Fulsom, Bryan, Vipin Gaur, Anjan Giri, Pablo Goldenzweig, Yinghui Guan, Kristina Gudkova, Xiao Han, Hara, Takanori, Kiyoshi Hayasaka, Hisaki Hayashii, Michael Thomas Hedges, Daniel Ricalde, Wei-Shu Hou, Chia-Ling Hsu, Toru Iijima, Sushree Ipsita, N., Ishikawa, A., Ryosuke Itoh, Masako Iwasaki, Jacobs, W. W., Eunji Jang, Sen Jia, Yifan Jin, Takeo Kawasaki, Christian Kiesling, Cheolhun Kim, Doris Yangsoo Kim, Kim, Kyungho, Yongkyu kim, Kay Kinoshita, Peter Kodyš, Tomoyuki Konno, Alexandr Korobov, Samo Korpar, Evgeniy Kovalenko, Peter Križan, Pavel Krokovny, Manish Kumar, Kospalage kumara, Alexander Kuzmin, Young-Joon Kwon, Seungcheol Lee, Jin Li, Longke Li, Yang Li, James Libby, Kilian Lieret, Yuan-Ru Lin, Dmitri Liventsev, Ma, Y., Alberto Martini, Masataka Masuda, Kodai Matsuoka, Dmitry Matvienko, Shubhangi Krishan Maurya, Frank Meier, Mario Merola, Kenkichi Miyabayashi, Roman Mizuk, Mohanty, Gagan B., Mikihiko Nakao, Zbigniew Natkaniec, Andrii Natochii, Lopamudra Nayak, Masayuki Niiyama, Nisar, N. K., Shohei Nishida, Satoru Ogawa, Hiroaki Ono, Pavel Oskin, Galina Pakhlova, Tong Pang, Silvio Pardi, Hwanbae Park, Junewoo Park, Seokhee Park, antonio passeri, Stephan Paul, Todd Pedlar, Rok Pestotnik, Leo Piilonen, Tomaž Podobnik, Elisabetta Prencipe, Markus Tobias Prim, Armine Rostomyan, Rout, N., Guido Russo, Saurabh Sandilya, Aman Sangal, Luka Santelj, Vladimir Savinov, Gunar Schnell, Christoph Schwanda, Yoshiaki Seino, Katsumi Senyo, Martin Sevior, Wei Shan, Mikhail Shapkin, Chanchal Sharma, Jing-Ge Shiu, Elena Solovieva, Staric Marko, Mizuki Sumihama, Sumiyoshi, Takayuki, Makoto Takizawa, umberto tamponi, Kiyoshi Tanida, Francesco Tenchini, Makoto Uchida, Timofey Uglov, Yuuji Unno, SHOJI UNO, PHILLIP URQUIJO, Ushiroda, Yutaka, Sven Vahsen, Gary Varner, Anna Vinokurova, Dazhi Wang, Wang, E., MIN-ZU WANG, Xiaolong Wang, Shun Watanuki, Xinping Xu, Bruce Yabsley, Wenbiao Yan, Seongbae Yang, John Yelton, Youngmin Yook, Li Yuan, Yunxiao Zhai, Victor Zhilich, and Valentina Zhukova

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