Observation of charmless baryonic decays b-(s)(0) -> p(p)over-barh plus h '(-)
文献类型：期刊论文
| 作者 | Aaij, R.; Adeva, B.41; Adinolfi, M.50; Ajaltouni, Z.5; Akar, S.61; Albrecht, J.10; Alessio, F.42; Alexander, M.55; Ali, S.45; Alkhazov, G.33 |
| 刊名 | Physical review d
 |
| 出版日期 | 2017-09-27 |
| 卷号 | 96期号:5页码:10 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.96.051103 |
| 通讯作者 | Aaij, r.() |
| 英文摘要 | Decays of b-0 and b-s(0) mesons to the charmless baryonic final states p (p) over barh(+)h'(-), where h and h' each denote a kaon or a pion, are searched for using the lhcb detector. the analysis is based on a sample of proton-proton collision data collected at center-of-mass energies of 7 and 8 tev, corresponding to an integrated luminosity of 3 fb(-1). four-body charmless baryonic b-s(0) decays are observed for the first time. the decays b-s(0) -> p (p) over bark(+) k-, b-s(0) -> p (p) over bark(+/-) pi(inverted perpendicular), b-0 -> p (p) over bark(+) pi(inverted perpendicular) and b-0 -> p (p) over bar pi(+) pi(-) are observed with a significance greater than 5 standard deviations; evidence at 4.1 standard deviations is found for the b-0 -> p (p) over bark(+) k- decay and an upper limit is set on the branching fraction for b-s(0) -> p (p) over bar pi(+) pi(-). branching fractions in the kinematic region m(p (p) over bar) < 2850 mev/c(2) are measured relative to the b-0 -> j/psi(-> p<(p)over bar>) k* (892)(0) channel. |
| WOS关键词 | B-DECAYS ; SEARCH ; TOOL |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000411987100001 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177101 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Aaij, R. |
| 作者单位 | 1.CBPF, Rio De Janeiro, Brazil 2.Univ Fed Rio de Janeiro, Rio de Janeiro, Brazil 3.Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China 4.Univ Savoie Mt Blanc, LAPP, CNRS, IN2P3, Annecy Le Vieux, France 5.Univ Blaise Pascal, Clermont Univ, CNRS, IN2P3,LPC, Clermont Ferrand, France 6.Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France 7.Univ Paris 11, LAL, CNRS, IN2P3, Orsay, France 8.Univ Paris Diderot, Univ Pierre & Marie Curie, LPNHE, CNRS,IN2P3, Paris, France 9.Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany 10.Tech Univ Dortmund, Fak Phys, Dortmund, Germany |
| 推荐引用方式 GB/T 7714 | Aaij, R.,Adeva, B.,Adinolfi, M.,et al. Observation of charmless baryonic decays b-(s)(0) -> p(p)over-barh plus h '(-)[J]. Physical review d,2017,96(5):10. |
| APA | Aaij, R..,Adeva, B..,Adinolfi, M..,Ajaltouni, Z..,Akar, S..,...&Zucchelli, S..(2017).Observation of charmless baryonic decays b-(s)(0) -> p(p)over-barh plus h '(-).Physical review d,96(5),10. |
| MLA | Aaij, R.,et al."Observation of charmless baryonic decays b-(s)(0) -> p(p)over-barh plus h '(-)".Physical review d 96.5(2017):10. |
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