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Test of Lepton-Flavor Universality in B→K
Wehle, S; Adachi, I; Adamczyk, K; Aihara, H; Asner, D M; Atmacan, H; Aulchenko, V; Aushev, T; Ayad, R; Babu, V; Behera, P; Berger, M; Bhardwaj, V; Biswal, J; Bozek, A; Bracko, M; Browder, T E; Campajola, M; Cao, L; Chang, M-C; Chen, A; Cheon, B G; Chilikin, K; Cho, K; Choi, Y; Choudhury, S; Cinabro, D; Cunliffe, S; Dash, N; De Nardo, G; Di Capua, F; Dubey, S; Eidelman, S; Epifanov, D; Ferber, T; Fulsom, B G; Garg, R; Gaur, V; Gabyshev, N; Garmash, A; Giri, A; Goldenzweig, P; Greenwald, D; Guan, Y; Haba, J; Hartbrich, O; Hayasaka, K; Hayashii, H; Hedges, M T; Higuchi, T.
Afiliación
  • Wehle S; Deutsches Elektronen-Synchrotron, 22607 Hamburg.
  • Adachi I; SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193.
  • Adamczyk K; High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801.
  • Aihara H; H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342.
  • Asner DM; Department of Physics, University of Tokyo, Tokyo 113-0033.
  • Atmacan H; Brookhaven National Laboratory, Upton, New York 11973.
  • Aulchenko V; University of Cincinnati, Cincinnati, Ohio 45221.
  • Aushev T; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
  • Ayad R; Novosibirsk State University, Novosibirsk 630090.
  • Babu V; Higher School of Economics (HSE), Moscow 101000.
  • Behera P; Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451.
  • Berger M; Deutsches Elektronen-Synchrotron, 22607 Hamburg.
  • Bhardwaj V; Indian Institute of Technology Madras, Chennai 600036.
  • Biswal J; Stefan Meyer Institute for Subatomic Physics, Vienna 1090.
  • Bozek A; Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306.
  • Bracko M; J. Stefan Institute, 1000 Ljubljana.
  • Browder TE; H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342.
  • Campajola M; J. Stefan Institute, 1000 Ljubljana.
  • Cao L; University of Maribor, 2000 Maribor.
  • Chang MC; University of Hawaii, Honolulu, Hawaii 96822.
  • Chen A; INFN-Sezione di Napoli, 80126 Napoli.
  • Cheon BG; Università di Napoli Federico II, 80126 Napoli.
  • Chilikin K; University of Bonn, 53115 Bonn.
  • Cho K; Department of Physics, Fu Jen Catholic University, Taipei 24205.
  • Choi Y; National Central University, Chung-li 32054.
  • Choudhury S; Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763.
  • Cinabro D; P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991.
  • Cunliffe S; Korea Institute of Science and Technology Information, Daejeon 34141.
  • Dash N; Sungkyunkwan University, Suwon 16419.
  • De Nardo G; Indian Institute of Technology Hyderabad, Telangana 502285.
  • Di Capua F; Wayne State University, Detroit, Michigan 48202.
  • Dubey S; Deutsches Elektronen-Synchrotron, 22607 Hamburg.
  • Eidelman S; Indian Institute of Technology Madras, Chennai 600036.
  • Epifanov D; INFN-Sezione di Napoli, 80126 Napoli.
  • Ferber T; Università di Napoli Federico II, 80126 Napoli.
  • Fulsom BG; INFN-Sezione di Napoli, 80126 Napoli.
  • Garg R; Università di Napoli Federico II, 80126 Napoli.
  • Gaur V; University of Hawaii, Honolulu, Hawaii 96822.
  • Gabyshev N; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
  • Garmash A; P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991.
  • Giri A; Novosibirsk State University, Novosibirsk 630090.
  • Goldenzweig P; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
  • Greenwald D; Novosibirsk State University, Novosibirsk 630090.
  • Guan Y; Deutsches Elektronen-Synchrotron, 22607 Hamburg.
  • Haba J; Pacific Northwest National Laboratory, Richland, Washington 99352.
  • Hartbrich O; Panjab University, Chandigarh 160014.
  • Hayasaka K; Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061.
  • Hayashii H; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
  • Hedges MT; Novosibirsk State University, Novosibirsk 630090.
  • Higuchi T; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
Phys Rev Lett ; 126(16): 161801, 2021 Apr 23.
Article en En | MEDLINE | ID: mdl-33961476
ABSTRACT
We present a measurement of R_{K^{*}}, 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 R_{K^{*+}} 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 q^{2}. The analysis is based on a data sample of 711 fb^{-1}, containing 772×10^{6} BB[over ¯] 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.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article
Texto completo
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article