Evidence for the two-body charmless baryonic decay b+ -> p(lambda)over-bar
文献类型：期刊论文
| 作者 | Aaij, R.40; Adeva, B.39; Adinolfi, M.48; Ajaltouni, Z.5; Akar, S.6; Albrecht, J.10; Alessio, F.40; Alexander, M.53; Ali, S.43; Alkhazov, G.31 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2017-04-28 |
| 期号 | 4页码:18 |
| 关键词 | B physics Branching fraction Flavor physics Hadron-hadron scattering (experiments) |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep04(2017)162 |
| 通讯作者 | Rodrigues, a. b.(eduardo.rodrigues@cern.ch) |
| 英文摘要 | A search for the rare two-body charmless baryonic decay b+ -> p (lambda) over bar is performed with pp collision data, corresponding to an integrated luminosity of 3 fb(-1), collected by the lhcb experiment at centre-of-mass energies of 7 and 8 tev. an excess of b+ -> p (lambda) over bar candidates with respect to background expectations is seen with a statistical significance of 4.1 standard deviations, and constitutes the first evidence for this decay. the branching fraction, measured using the b+ -> k-s(0)pi(+) decay for normalisation, is b(b+ -> p (lambda) over bar) = (2.4(-0.8)(+)(+1.0) +/- 0.3) x 10(-7), where the first uncertainty is statistical and the second systematic. |
| WOS关键词 | TOOL |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000401067200001 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177422 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Rodrigues, A. B. |
| 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 Mont Blanc, CNRS IN2P3, LAPP, Annecy Le Vieux, France 5.Clermont Univ, Univ Blaise Pascal, CNRS IN2P3, LPC, Clermont Ferrand, France 6.Aix Marseille Univ, CNRS IN2P3, CPPM, 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, Phys Inst 1, Aachen, Germany 10.Tech Univ Dortmund, Fac Phys, Dortmund, Germany |
| 推荐引用方式 GB/T 7714 | Aaij, R.,Adeva, B.,Adinolfi, M.,et al. Evidence for the two-body charmless baryonic decay b+ -> p(lambda)over-bar[J]. Journal of high energy physics,2017(4):18. |
| APA | Aaij, R..,Adeva, B..,Adinolfi, M..,Ajaltouni, Z..,Akar, S..,...&Zucchelli, S..(2017).Evidence for the two-body charmless baryonic decay b+ -> p(lambda)over-bar.Journal of high energy physics(4),18. |
| MLA | Aaij, R.,et al."Evidence for the two-body charmless baryonic decay b+ -> p(lambda)over-bar".Journal of high energy physics .4(2017):18. |
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来源：高能物理研究所
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