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J-GLOBAL ID：201702228565808558   整理番号：17A0085119

D_s⁺→l⁺ν_l分岐比と崩壊定数f_X(X=D_s⁺)の測定

Measurement of the D_s⁺→e⁺ν_e branching fractions and the decay constant f_X (X=D_s⁺)

著者 (120件)： ABLIKIM M. (Inst. High Energy Physics, Beijing, CHN) ,  ACHASOV M.N. (G.I. Budker Inst. Nuclear Physics, RAS, Novosibirsk, RUS) ,  ACHASOV M.N. (Novosibirsk State Univ., Novosibirsk, RUS) ,  AI X.C. (Inst. High Energy Physics, Beijing, CHN) ,  ALBAYRAK O. (Carnegie Mellon Univ., Pennsylvania, USA) ,  ALBRECHT M. (Bochum Ruhr-Univ., Bochum, DEU) ,  AMBROSE D.J. (Univ. Rochester, New York, USA) ,  AMOROSO A. (Univ. Turin, Turin, ITA) ,  AMOROSO A. (Univ. Eastern Piedmont, Alessandria, ITA) ,  AN F.F. (Inst. High Energy Physics, Beijing, CHN) ,  AN Q. (Univ. Sci. and Technol. China, Hefei, CHN) ,  AN Q. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  BAI J.Z. (Inst. High Energy Physics, Beijing, CHN) ,  BAKINA O. (Joint Inst. Nuclear Res., Moscow region, RUS) ,  BALDINI FERROLI R. (INFN Laboratori Nazionali di Frascati, Frascati, ITA) ,  BAN Y. (Peking Univ., Beijing, CHN) ,  BENNETT D.W. (Indiana Univ., Indiana, USA) ,  BENNETT J.V. (Carnegie Mellon Univ., Pennsylvania, USA) ,  BERTANI M. (INFN Laboratori Nazionali di Frascati, Frascati, ITA) ,  BETTONI D. (INFN Sezione di Ferrara, Ferrara, ITA) ,  BIAN J.M. (Univ. Minnesota, Minnesota, USA) ,  BIANCHI F. (Univ. Turin, Turin, ITA) ,  BIANCHI F. (INFN, Turin, ITA) ,  BOGER E. (Joint Inst. Nuclear Res., Moscow region, RUS) ,  BOGER E. (Moscow Inst. Physics and Technol.,Moscow, RUS) ,  BOYKO I. (Joint Inst. Nuclear Res., Moscow region, RUS) ,  BRIERE R.A. (Carnegie Mellon Univ., Pennsylvania, USA) ,  CAI H. (Wuhan Univ., Wuhan, CHN) ,  CAI X. (Inst. High Energy Physics, Beijing, CHN) ,  CAI X. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  CAKIR O. (Ankara Univ., Ankara, TUR) ,  CALCATERRA A. (INFN Laboratori Nazionali di Frascati, Frascati, ITA) ,  CAO G.F. (Inst. High Energy Physics, Beijing, CHN) ,  CETIN S.A. (Istanbul Bilgi Univ., Istanbul, TUR) ,  CHANG J.F. (Inst. High Energy Physics, Beijing, CHN) ,  CHANG J.F. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  CHELKOV G. (Joint Inst. Nuclear Res., Moscow region, RUS) ,  CHELKOV G. (Moscow Inst. Physics and Technol.,Moscow, RUS) ,  CHELKOV G. (Tomsk State Univ., Tomsk, RUS) ,  CHEN G. (Inst. High Energy Physics, Beijing, CHN) ,  CHEN H.S. (Inst. High Energy Physics, Beijing, CHN) ,  CHEN H.Y. (Beihang Univ., Beijing, CHN) ,  CHEN J.C. (Inst. High Energy Physics, Beijing, CHN) ,  CHEN M.L. (Inst. High Energy Physics, Beijing, CHN) ,  CHEN M.L. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  CHEN S. (Univ., Chinese Acad. Sci., Beijing, CHN) ,  CHEN S.J. (Nanjing Univ., Nanjing, CHN) ,  CHEN X. (Inst. High Energy Physics, Beijing, CHN) ,  CHEN X. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  CHEN X.R. (Lanzhou Univ., Lanzhou, CHN) ,  CHEN Y.B. (Inst. High Energy Physics, Beijing, CHN) ,  CHEN Y.B. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  CHENG H.P. (Huangshan Coll., Huangshan, CHN) ,  CHU X.K. (Peking Univ., Beijing, CHN) ,  CIBINETTO G. (INFN Sezione di Ferrara, Ferrara, ITA) ,  DAI H.L. (Inst. High Energy Physics, Beijing, CHN) ,  DAI H.L. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  DAI J.P. (Shanghai Jiao Tong Univ., Shanghai, CHN) ,  DBEYSSI A. (Helmholtz Inst. Mainz, Mainz, DEU) ,  DEDOVICH D. (Joint Inst. Nuclear Res., Moscow region, RUS) ,  DENG Z.Y. (Inst. High Energy Physics, Beijing, CHN) ,  DENIG A. (Johannes Gutenberg Univ. Mainz, Mainz, DEU) ,  DENYSENKO I. (Joint Inst. Nuclear Res., Moscow region, RUS) ,  DESTEFANIS M. (Univ. Turin, Turin, ITA) ,  DESTEFANIS M. (INFN, Turin, ITA) ,  DE MORI F. (Univ. Turin, Turin, ITA) ,  DE MORI F. (INFN, Turin, ITA) ,  DING Y. (Liaoning Univ., Shenyang, CHN) ,  DONG C. (Nankai Univ., Tianjin, CHN) ,  DONG J. (Inst. High Energy Physics, Beijing, CHN) ,  DONG J. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  DONG L.Y. (Inst. High Energy Physics, Beijing, CHN) ,  DONG M.Y. (Inst. High Energy Physics, Beijing, CHN) ,  DONG M.Y. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  DOU Z.L. (Nanjing Univ., Nanjing, CHN) ,  DU S.X. (Zhengzhou Univ., Zhengzhou, CHN) ,  DUAN P.F. (Inst. High Energy Physics, Beijing, CHN) ,  FAN J.Z. (Tsinghua Univ., Beijing, CHN) ,  FANG J. (Inst. High Energy Physics, Beijing, CHN) ,  FANG J. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  FANG S.S. (Inst. High Energy Physics, Beijing, CHN) ,  FANG X. (Univ. Sci. and Technol. China, Hefei, CHN) ,  FANG X. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  FANG Y. (Inst. High Energy Physics, Beijing, CHN) ,  FARINELLI R. (INFN Sezione di Ferrara, Ferrara, ITA) ,  FARINELLI R. (Univ. Ferrara, Ferrara, ITA) ,  FAVA L. (Univ. Eastern Piedmont, Alessandria, ITA) ,  FAVA L. (INFN, Turin, ITA) ,  FELDBAUER F. (Johannes Gutenberg Univ. Mainz, Mainz, DEU) ,  FELICI G. (INFN Laboratori Nazionali di Frascati, Frascati, ITA) ,  FENG C.Q. (Univ. Sci. and Technol. China, Hefei, CHN) ,  FENG C.Q. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  FIORAVANTI E. (INFN Sezione di Ferrara, Ferrara, ITA) ,  FRITSCH M. (Helmholtz Inst. Mainz, Mainz, DEU) ,  FRITSCH M. (Johannes Gutenberg Univ. Mainz, Mainz, DEU) ,  FU C.D. (Inst. High Energy Physics, Beijing, CHN) ,  GAO Q. (Inst. High Energy Physics, Beijing, CHN) ,  GAO X.L. (Univ. Sci. and Technol. China, Hefei, CHN) ,  GAO X.L. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  GAO X.Y. (Beihang Univ., Beijing, CHN) ,  GAO Y. (Tsinghua Univ., Beijing, CHN) ,  GAO Z. (Univ. Sci. and Technol. China, Hefei, CHN) ,  GAO Z. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  GARZIA I. (INFN Sezione di Ferrara, Ferrara, ITA) ,  GOETZEN K. (GSI Helmholtzcentre for Heavy Ion Res. GmbH, Darmstadt, DEU) ,  GONG L. (Nankai Univ., Tianjin, CHN) ,  GONG W.X. (Inst. High Energy Physics, Beijing, CHN) ,  GONG W.X. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  GRADL W. (Johannes Gutenberg Univ. Mainz, Mainz, DEU) ,  GRECO M. (Univ. Turin, Turin, ITA) ,  GRECO M. (INFN, Turin, ITA) ,  GU M.H. (Inst. High Energy Physics, Beijing, CHN) ,  GU M.H. (State Key Lab. Particle Detection and Electronics, Beijing, CHN) ,  GU Y.T. (Guangxi Univ., Nanning, CHN) ,  GUAN Y.H. (Inst. High Energy Physics, Beijing, CHN) ,  GUO A.Q. (Inst. High Energy Physics, Beijing, CHN) ,  GUO L.B. (Nanjing Normal Univ., Nanjing, CHN) ,  GUO R.P. (Inst. High Energy Physics, Beijing, CHN) ,  GUO Y. (Inst. High Energy Physics, Beijing, CHN) ,  GUO Y.P. (Johannes Gutenberg Univ. Mainz, Mainz, DEU)
資料名： Physical Review. D  (Physical Review. D)
巻： 94  号： 7  ページ： 072004.1-072004.10  発行年： 2016年10月 
JST資料番号： D0748A  ISSN： 2470-0010  CODEN： PRVDAQ  資料種別： 逐次刊行物 (A)
記事区分： 原著論文  発行国： アメリカ合衆国 (USA)  言語： 英語 (EN)

抄録/ポイント： BESIII検出器で得た^1/2(s)=4.009のe⁺e^-衝突データを解析して,崩壊D_s⁺→μ⁺ν_μとD_s⁺→τ⁺ν_τの分岐比を測定した。両者の比を標準模型と合わせることにして,B(D_s⁺→μ⁺ν_μ)=[0.495±0.067(統計)±0.026(系統)]%,B(D_s⁺→τ⁺ν_τ)=[4.83±0.65(統計)±0.26(系統)]%を得た。これらの結果から,f_X(X=D_s⁺)=[241.0±16.3(統計)±6.5(系統)]MeVを得た。

シソーラス用語： 実験 ,  崩壊定数 ,  データ解析 ,  *DS中間子 ,  素粒子模型 ,  不変質量分布 ,  μ粒子 ,  τ粒子 ,  *半レプトン崩壊 ,  e-e相互作用 ,  電子衝突
準シソーラス用語： BESIII実験 ,  素粒子標準模型 ,  電子-陽電子衝突

分類 (1件)： 中間子の崩壊  (BF03040D)

タイトルに関連する用語 (2件)： 分岐比 ,  崩壊定数