Measurement of the absolute branching fraction for lambda(+)(c) -> lambda mu(+)nu(mu)
文献类型：期刊论文
| 作者 | Ablikim, M.1; Achasov, M. N.9,67; Ahmed, S.14; Ai, X. C.1; Albayrak, O.5; Albrecht, M.4; Ambrose, D. J.50; Amoroso, A.1,55,57,63; An, F. F.1; An, Q.52,62,63 |
| 刊名 | Physics letters b
 |
| 出版日期 | 2017-04-10 |
| 卷号 | 767页码:42-47 |
| ISSN号 | 0370-2693 |
| 关键词 | Lambda(+)(c) Semi-leptonic decay Absolute branching fraction Besiii |
| DOI | 10.1016/j.physletb.2017.01.047 |
| 通讯作者 | Li, lei(lilei2014@bipt.edu.cn) |
| 英文摘要 | We report the first measurement of the absolute branching fraction for lambda(+)(c) -> lambda mu(+)nu(mu).this measurement is based on a sample of e+e(-) annihilation data produced at a center-of-mass energy root s = 4.6 gev, collected with the besiii detector at the bepcii storage rings. the sample corresponds to an integrated luminosity of 567 pb(-1). the branching fraction is determined to be b( lambda(+)(c) -> lambda mu(+)nu(mu)) = (3.49 +/- 0.46( stat) +/- 0.27( syst))%. in addition, we calculate the ratio b( lambda(+)(c) -> lambda mu(+)nu(mu))/b(lambda(+)(c) -> lambda e(+)nu(e) to be 0.96 +/- 0.16( stat) +/- 0.04( syst). (c) 2017 the author(s). published by elsevier b.v. |
| WOS关键词 | SEMILEPTONIC DECAYS ; CHARMED BARYONS ; HEAVY-QUARK ; PREDICTIONS ; MODEL |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000397861700008 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176740 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Li, Lei |
| 作者单位 | 1.Inst High Energy Phys, Beijing 100049, Peoples R China 2.Beihang Univ, Beijing 100191, Peoples R China 3.Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China 4.Bochum Ruhr Univers, D-44780 Bochum, Germany 5.Carnegie Mellon Univ, Pittsburgh, PA 15213 USA 6.Cent China Normal Univ, Wuhan 430079, Peoples R China 7.China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China 8.COMSATS Inst Informat Technol, Def Rd,Raiwind Rd, Lahore 54000, Pakistan 9.RAS, GI Budker Inst Nucl Phys BINP, SB, Novosibirsk 630090, Russia 10.GSI Helmholtzcentre Heavy Ion Res GmbH, D-64291 Darmstadt, Germany |
| 推荐引用方式 GB/T 7714 | Ablikim, M.,Achasov, M. N.,Ahmed, S.,et al. Measurement of the absolute branching fraction for lambda(+)(c) -> lambda mu(+)nu(mu)[J]. Physics letters b,2017,767:42-47. |
| APA | Ablikim, M..,Achasov, M. N..,Ahmed, S..,Ai, X. C..,Albayrak, O..,...&Zou, J. H..(2017).Measurement of the absolute branching fraction for lambda(+)(c) -> lambda mu(+)nu(mu).Physics letters b,767,42-47. |
| MLA | Ablikim, M.,et al."Measurement of the absolute branching fraction for lambda(+)(c) -> lambda mu(+)nu(mu)".Physics letters b 767(2017):42-47. |
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