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

作     者：S. Wehle I. Adachi K. Adamczyk H. Aihara D. M. Asner H. Atmacan V. Aulchenko T. Aushev R. Ayad V. Babu P. Behera M. Berger V. Bhardwaj J. Biswal A. Bozek M. Bračko T. E. Browder M. Campajola L. Cao M.-C. Chang A. Chen B. G. Cheon K. Chilikin K. Cho Y. Choi S. Choudhury D. Cinabro S. Cunliffe N. Dash G. De Nardo F. Di Capua S. Dubey S. Eidelman D. Epifanov T. Ferber B. G. Fulsom R. Garg V. Gaur N. Gabyshev A. Garmash A. Giri P. Goldenzweig D. Greenwald Y. Guan J. Haba O. Hartbrich K. Hayasaka H. Hayashii M. T. Hedges T. Higuchi W.-S. Hou C.-L. Hsu T. Iijima K. Inami G. Inguglia A. Ishikawa R. Itoh M. Iwasaki Y. Iwasaki W. W. Jacobs S. Jia Y. Jin D. Joffe J. Kahn A. B. Kaliyar G. Karyan H. Kichimi D. Y. Kim K. T. Kim S. H. Kim Y.-K. Kim K. Kinoshita I. Komarov S. Korpar D. Kotchetkov R. Kroeger P. Krokovny T. Kuhr R. Kulasiri R. Kumar K. Kumara A. Kuzmin Y.-J. Kwon J. S. Lange J. Y. Lee S. C. Lee Y. B. Li J. Libby Z. Liptak D. Liventsev T. Luo J. MacNaughton M. Masuda T. Matsuda J. T. McNeil M. Merola F. Metzner H. Miyata R. Mizuk G. B. Mohanty T. J. Moon R. Mussa M. Nakao A. Natochii M. Nayak C. Niebuhr M. Niiyama N. K. Nisar S. Nishida K. Ogawa S. Ogawa H. Ono Y. Onuki P. Pakhlov G. Pakhlova H. Park S.-H. Park T. K. Pedlar R. Pestotnik L. E. Piilonen T. Podobnik V. Popov E. Prencipe M. T. Prim P. K. Resmi M. Ritter A. Rostomyan N. Rout G. Russo D. Sahoo Y. Sakai S. Sandilya A. Sangal L. Santelj V. Savinov O. Schneider G. Schnell J. Schueler C. Schwanda A. J. Schwartz Y. Seino K. Senyo M. E. Sevior M. Shapkin J.-G. Shiu B. Shwartz E. Solovieva M. Starič J. F. Strube T. Sumiyoshi W. Sutcliffe M. Takizawa U. Tamponi K. Tanida Y. Tao F. Tenchini K. Trabelsi M. Uchida T. Uglov Y. Unno S. Uno Y. Ushiroda S. E. Vahsen R. Van Tonder G. Varner K. E. Varvell V. Vorobyev C. H. Wang M.-Z. Wang P. Wang X. L. Wang E. Won X. Xu S. B. Yang H. Ye J. H. Yin C. Z. Yuan Z. P. Zhang V. Zhilich V. Zhukova V. Zhulanov 

作者机构：Deutsches Elektronen–Synchrotron 22607 Hamburg High Energy Accelerator Research Organization (KEK) Tsukuba 305-0801 SOKENDAI (The Graduate University for Advanced Studies) Hayama 240-0193 H. Niewodniczanski Institute of Nuclear Physics Krakow 31-342 Department of Physics University of Tokyo Tokyo 113-0033 Brookhaven National Laboratory Upton New York 11973 University of Cincinnati Cincinnati Ohio 45221 Budker Institute of Nuclear Physics SB RAS Novosibirsk 630090 Novosibirsk State University Novosibirsk 630090 Higher School of Economics (HSE) Moscow 101000 Department of Physics Faculty of Science University of Tabuk Tabuk 71451 Indian Institute of Technology Madras Chennai 600036 Stefan Meyer Institute for Subatomic Physics Vienna 1090 Indian Institute of Science Education and Research Mohali SAS Nagar 140306 J. Stefan Institute 1000 Ljubljana University of Maribor 2000 Maribor University of Hawaii Honolulu Hawaii 96822 INFN—Sezione di Napoli 80126 Napoli Università di Napoli Federico II 80126 Napoli University of Bonn 53115 Bonn Department of Physics Fu Jen Catholic University Taipei 24205 National Central University Chung-li 32054 Department of Physics and Institute of Natural Sciences Hanyang University Seoul 04763 P. N. Lebedev Physical Institute of the Russian Academy of Sciences Moscow 119991 Korea Institute of Science and Technology Information Daejeon 34141 Sungkyunkwan University Suwon 16419 Indian Institute of Technology Hyderabad Telangana 502285 Wayne State University Detroit Michigan 48202 Pacific Northwest National Laboratory Richland Washington 99352 Panjab University Chandigarh 160014 Virginia Polytechnic Institute and State University Blacksburg Virginia 24061 Institut für Experimentelle Teilchenphysik Karlsruher Institut für Technologie 76131 Karlsruhe Department of Physics Technische Universität München 85748 Garching Niigata University Niigata 950-2181 Nara Women’s University Nara 630-8506 Kavli Institute for the Physics and Mathematics of the Universe (WPI) University of Tokyo Kashiwa 277-8583 Department of Physics National Taiwan University Taipei 10617 School of Physics University of Sydney New South Wales 2006 Kobayashi-Maskawa Institute Nagoya University Nagoya 464-8602 Graduate School of Science Nagoya University Nagoya 464-8602 Institute of High Energy Physics Vienna 1050 Osaka City University Osaka 558-8585 Indiana University Bloomington Indiana 47408 Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics Fudan University Shanghai 200443 Kennesaw State University Kennesaw Georgia 30144 Tata Institute of Fundamental Research Mumbai 400005 Soongsil University Seoul 06978 Korea University Seoul 02841 Seoul National University Seoul 08826 Yonsei University Seoul 03722 University of Mississippi University Mississippi 38677 Ludwig Maximilians University 80539 Munich Punjab Agricultural University Ludhiana 141004 Justus-Liebig-Universität Gießen 35392 Gießen Kyungpook National University Daegu 41566 Peking University Beijing 100871 Hiroshima Institute of Technology Hiroshima 731-5193 University of Miyazaki Miyazaki 889-2192 Earthquake Research Institute University of Tokyo Tokyo 113-0032 Research Center for Nuclear Physics Osaka University Osaka 567-0047 University of Florida Gainesville Florida 32611 INFN—Sezione di Torino 10125 Torino School of Physics and Astronomy Tel Aviv University Tel Aviv 69978 Kyoto Sangyo University Kyoto 603-8555 Toho University Funabashi 274-8510 Nippon Dental University Niigata 951-8580 Moscow Physical Engineering Institute Moscow 115409 Luther College Decorah Iowa 52101 Faculty of Mathematics and Physics University of Ljubljana 1000 Ljubljana Forschungszentrum Jülich 52425 Jülich University of Pittsburgh Pittsburgh Pennsylvania 15260 École Polytechnique Fédérale de Lausanne (EPFL) Lausanne 1015 University of the Basque Country UPV/EHU 48080 Bilbao IKERBASQUE Basque Foundation for Science 48013 Bilbao Yamagata University Yamagata 990-8560 School of Physics University of Melbourne Victoria 3010 Institute for High Energy Physics Protvino 142281 Tokyo Metropolitan University Tokyo 192-0397 Showa Pharmaceutical University Tokyo 194-8543 J-PARC Branch KEK Theory Center High Energy Accelerator Research Organization (KEK) Tsukuba 305-0801 Advanced Science Research Center Japan Atomic Energy Agency Naka 319-1195 Université Paris-Saclay CNRS/IN2P3 IJCLab 91405 Orsay Tokyo Institute of Technology Tokyo 152-8550 National United University Miao Li 36003 Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 Soochow University Suzhou 215006 Department of Modern Physics and State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Hefei 230026 

出 版 物：《Physical Review Letters》 (物理评论快报)

年 卷 期：2021年第126卷第16期

页      面：161801-161801页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：We thank the KEKB group for the excellent operation of the accelerator the KEK cryogenics group for the efficient operation of the solenoid the KEK computer group and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support and the National Institute of Informatics, and Science Information NETwork 5 (SINET5) for valuable network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, No. FT130100303 Austrian Science Fund (FWF) the National Natural Science Foundation of China under Contracts No. 11435013, No. 11475187, No. 11521505, No. 11575017, No. 11675166, No. 11705209 Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSW-SLH011 the CAS Center for Excellence in Particle Physics (CCEPP) the Shanghai Pujiang Program under Grant No. 18PJ1401000 the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020 the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung the Department of Science and Technology of India the Istituto Nazionale di Fisica Nucleare of Italy National Research Foundation (NRF) of Korea Grants No. 2016R1D1A1B01010135, No. 2016R1D1A1B02012900, No. 2018R1A2B3003643, No. 2018R1A6A1A06024970, No. 2018R1D1A1B07047294, No. 2019K1A3A7A09033840, No. 2019R1I1A3A01058933 Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information, and KREONET/GLORIAD the Polish Ministry of Science and Higher Education and the National Science Center the Ministry of Science and Higher Education of the Russian Federation, Agreement No. 14.W03.31.0026 University of Tabuk research Grants No. S-1440-0321, No. S-0256-1438, and No. S-0280-1439 (Saudi Arabia) the Slovenian Research Agency Ikerbasque, Basque Foundation for Science, Spain the Swiss National Science Foundation the Ministry of Education and the Ministry of Science and Technology of Taiwan and the U.S. Department of Energy and the National Science Foundation 

主　　题：Branching fraction Flavor changing neutral currents Particle decays Rare decays Bottom mesons Lepton colliders 

摘      要：We present a measurement of RK*, the branching fraction ratio B(B→K*μ+μ−)/B(B→K*e+e−), for both charged and neutral B mesons. The ratio for the charged case RK*+ is the first measurement ever performed. In addition, we report absolute branching fractions for the individual modes in bins of the squared dilepton invariant mass q2. The analysis is based on a data sample of 711 fb−1, containing 772×106 BB¯ events, recorded at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. The obtained results are consistent with standard model expectations.