Observation of lambda(0)(b) -> psi (2s)pk(-) and lambda(0)(b) -> j/psi pi(+)pi(-)pk(-) decays and a measurement of the a(b)(0) baryon mass
文献类型：期刊论文
| 作者 | Aaij, R.40; Beteta, C. Abellan42; Adeva, B.39; Adinolfi, M.49; Affolder, A.55; Ajaltouni, Z.5; Akar, S.6; Albrecht, J.10; Alessio, F.40; Alexander, M.54 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2016-05-23 |
| 期号 | 5页码:22 |
| 关键词 | B physics Flavor physics Hadron-hadron scattering (experiments) Particle and resonance production Spectroscopy |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep05(2016)132 |
| 通讯作者 | Belyaev, i.(ivan.belyaev@cern.ch) |
| 英文摘要 | The decays lambda(0)(b) -> psi(2s)pk(-) and lambda(0)(b) -> j/psi pi(+)pi(-)pk(-) are observed in a data sample corresponding to an integrated luminosity of 3 fb(-1), collected in proton-proton collisions at 7 and 8 tev centre-of-mass energies by the lhcb detector. the psi(2s) mesons are reconstructed through the decay modes psi(2s) -> mu(+)mu(-) and psi(2s) -> j/psi pi(+)pi(-) the branching fractions relative to that of lambda(0)(b) -> j/psi pk(-) are measured to be [graphics] where the first uncertainties are statistical, the second are systematic and the third is related to the knowledge of j/psi and psi(2s) branching fractions. the mass of the ai baryon is measured to be m(lambda(0)(b)) = 5619.65 +/- 0.17 0.17 mev/c(2), where the uncertainties are statistical and systematic. |
| WOS关键词 | PP COLLISIONS ; DISTRIBUTIONS ; DETECTOR ; RATIO ; TOOL ; TEV |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000377450500002 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176510 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Belyaev, I. |
| 作者单位 | 1.Ctr Brasileiro Pesquisas Fis, 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.Univ Clermont Ferrand, CNRS, IN2P3, Univ Blaise Pascal,LPC, Clermont Ferrand, France 6.Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France 7.Univ Paris 11, CNRS, IN2P3, LAL, F-91405 Orsay, France 8.Univ Paris 06, CNRS, Univ Paris Diderot, IN2P3,LPNHE, Paris, France 9.Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany 10.Tech Univ Dortmund, Fak Phys, D-44221 Dortmund, Germany |
| 推荐引用方式 GB/T 7714 | Aaij, R.,Beteta, C. Abellan,Adeva, B.,et al. Observation of lambda(0)(b) -> psi (2s)pk(-) and lambda(0)(b) -> j/psi pi(+)pi(-)pk(-) decays and a measurement of the a(b)(0) baryon mass[J]. Journal of high energy physics,2016(5):22. |
| APA | Aaij, R..,Beteta, C. Abellan.,Adeva, B..,Adinolfi, M..,Affolder, A..,...&Zucchelli, S..(2016).Observation of lambda(0)(b) -> psi (2s)pk(-) and lambda(0)(b) -> j/psi pi(+)pi(-)pk(-) decays and a measurement of the a(b)(0) baryon mass.Journal of high energy physics(5),22. |
| MLA | Aaij, R.,et al."Observation of lambda(0)(b) -> psi (2s)pk(-) and lambda(0)(b) -> j/psi pi(+)pi(-)pk(-) decays and a measurement of the a(b)(0) baryon mass".Journal of high energy physics .5(2016):22. |
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