Measurement of the branching fractions of d-s(+) -> eta ' x and d-s(+) -> eta 'rho(+) in e(+)e(-) -> ds+ds-
文献类型：期刊论文
| 作者 | Ablikim, M.1; Achasov, M. N.9,65; Ai, X. C.1; Albayrak, O.5; Albrecht, M.4; Ambrose, D. J.49; Amoroso, A.53,55; An, F. F.1; An, Q.50,60; Bai, J. Z.1 |
| 刊名 | Physics letters b
 |
| 出版日期 | 2015-11-12 |
| 卷号 | 750页码:466-474 |
| 关键词 | Besiii D-s Branching fractions |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2015.09.059 |
| 通讯作者 | Liu, p. l.(liupl@ihep.ac.cn) |
| 英文摘要 | We study d-s(+) decays to final states involving the eta' with a 482 pb(-1) data sample collected at root s = 4.009 gev with the besiii detector at the bepcii collider. we measure the branching fractions b(d-s(+) -> eta'x) = (8.8 +/- 1.8 +/- 0.5)% and b(d-s(+) > eta'rho(+)) = (5.8 +/- 1.4 +/- 0.4)% where the first uncertainty is statistical and the second is systematic. in addition, we estimate an upper limit on the non-resonant branching ratio b(d-s(+) -> eta'pi(+)pi(0)) < 5.1% at the 90% confidence level. our results are consistent with cleo's recent measurements and help to resolve the disagreement between the theoretical prediction and cleo's previous measurement of b(d-s(+) -> eta'rho(+)). (c) 2015 the authors. published by elsevier b.v. |
| WOS关键词 | PERTURBATIVE QCD APPROACH ; MESON DECAYS ; FACTORIZATION |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000364250600076 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176450 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Liu, P. L. |
| 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.Ruhr Univ Bochum, 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, Lahore 54000, Pakistan 9.GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia 10.GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany |
| 推荐引用方式 GB/T 7714 | Ablikim, M.,Achasov, M. N.,Ai, X. C.,et al. Measurement of the branching fractions of d-s(+) -> eta ' x and d-s(+) -> eta 'rho(+) in e(+)e(-) -> ds+ds-[J]. Physics letters b,2015,750:466-474. |
| APA | Ablikim, M..,Achasov, M. N..,Ai, X. C..,Albayrak, O..,Albrecht, M..,...&Zou, J. H..(2015).Measurement of the branching fractions of d-s(+) -> eta ' x and d-s(+) -> eta 'rho(+) in e(+)e(-) -> ds+ds-.Physics letters b,750,466-474. |
| MLA | Ablikim, M.,et al."Measurement of the branching fractions of d-s(+) -> eta ' x and d-s(+) -> eta 'rho(+) in e(+)e(-) -> ds+ds-".Physics letters b 750(2015):466-474. |
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