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Guo, FK; Meissner, UG; Nieves, J5; Yang, Z1,2
Remarks on the P-c structures and triangle singularities
Source PublicationEUROPEAN PHYSICAL JOURNAL A
Language英语
KeywordPENTAQUARK CANDIDATES DIQUARK MODEL STATES RESONANCES BARYONS
AbstractIt was proposed that the narrow P-c(4450) structure observed by the LHCb Collaboration in the reaction Lambda(b) -> J/psi pK might be due to a triangle singularity around the chi(c1)-proton threshold at 4.45 GeV. We discuss the occurrence of a similar triangle singularity in the J/psi p invariant mass distribution for the decay Lambda(b) -> J/psi p pi, which could explain the bump around 4.45 GeV in the data. More precise measurements of this process would provide valuable information towards an understanding of the P-c structures.
2016
Volume52Issue:10Pages:318
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1140/epja/i2016-16318-4
Indexed BySCI
Funding OrganizationDFG ; NSFC [11621131001] ; Thousand Talents Plan for Young Professionals ; Chinese Academy of Sciences (CAS) [QYZDB-SSW-SYS013] ; CAS President's International Fellowship Initiative (PIFI) [2015VMA076] ; Spanish Ministerio de Economia y Competitividad ; European FEDER funds [FIS2014-51948-C2-1-P, FIS2014-57026-REDT, SEV-2014-0398] ; Generalitat Valenciana [PROME-TEOII/2014/0068]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23299
Collection理论物理所科研产出_SCI论文
Affiliation1.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
3.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
4.Meissner, Ulf-G.] Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys, D-52425 Julich, Germany
5.Meissner, Ulf-G.] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany
6.Univ Valencia, CSIC, Ctr Mixto, Inst Fis Corpuscular IFIC,Inst Invest Paterna, Aptd 22085, E-46071 Valencia, Spain
Recommended Citation
GB/T 7714
Guo, FK,Meissner, UG,Nieves, J,et al. Remarks on the P-c structures and triangle singularities[J]. EUROPEAN PHYSICAL JOURNAL A,2016,52(10):318.
APA Guo, FK,Meissner, UG,Nieves, J,&Yang, Z.(2016).Remarks on the P-c structures and triangle singularities.EUROPEAN PHYSICAL JOURNAL A,52(10),318.
MLA Guo, FK,et al."Remarks on the P-c structures and triangle singularities".EUROPEAN PHYSICAL JOURNAL A 52.10(2016):318.
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