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Evidence for exotic hadron contributions to lambda(0)(b) -> j/psi p pi(-) decays

文献类型:期刊论文

AuthorAaij, R.40; Beteta, C. Abellan42; Adeva, B.39; Adinolfi, M.49; Ajaltouni, Z.5; Akar, S.6; Albrecht, J.10; Alessio, F.40; Alexander, M.; Ali, S.43
SourcePhysical review letters
Issued Date2016-08-18
Volume117Issue:8Pages:10
ISSN0031-9007
DOI10.1103/physrevlett.117.082003
Corresponding AuthorAaij, r.()
English AbstractA full amplitude analysis of lambda(0)(b) -> j/psi pi(-) decays is performed with a data sample acquired with the lhcb detector from 7 and 8 tev pp collisions, corresponding to an integrated luminosity of 3 fb(-1). a significantly better description of the data is achieved when, in addition to the previously observed nucleon excitations n -> p pi(-), either the p-c(43800)(+) and p-c(4450)(+) -> j/psi p states, previously observed in lambda(0)(b) -> j/psi pk(-) decays, or the z(c)(4200)(-) -> j/psi pi(-) state, previously reported in b-0 -> j/psi k+pi(-) decays, or all three, are included in the amplitude models. the data support a model containing all three exotic states, with a significance of more than three standard deviations. within uncertainties, the data are consistent with the p-c(4380)(+) and p-c(4 450)(+) production rates expected from their previous observation taking account of cabibbo suppression.
WOS KeywordPARTIAL-WAVE ANALYSIS ; BARYON RESONANCES ; QUARK-MODEL ; STATES
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Language英语
WOS IDWOS:000381608500004
PublisherAMER PHYSICAL SOC
URIhttp://www.irgrid.ac.cn/handle/1471x/2375142
Collection中国科学院大学
Corresponding AuthorAaij, R.
Affiliation1.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, LAPP, CNRS, IN2P3, Annecy Le Vieux, France
5.Univ Clermont Ferrand, 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 Paris 06, LPNHE, CNRS,IN2P3, Paris, France
9.Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany
10.Tech Univ Dortmund, Fak Phys, Dortmund, Germany
Recommended Citation
GB/T 7714
Aaij, R.,Beteta, C. Abellan,Adeva, B.,et al. Evidence for exotic hadron contributions to lambda(0)(b) -> j/psi p pi(-) decays[J]. Physical review letters,2016,117(8):10.
APA Aaij, R..,Beteta, C. Abellan.,Adeva, B..,Adinolfi, M..,Ajaltouni, Z..,...&Zucchelli, S..(2016).Evidence for exotic hadron contributions to lambda(0)(b) -> j/psi p pi(-) decays.Physical review letters,117(8),10.
MLA Aaij, R.,et al."Evidence for exotic hadron contributions to lambda(0)(b) -> j/psi p pi(-) decays".Physical review letters 117.8(2016):10.

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