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He, J1,2,3
(D)over-bar Sigma(c)* and (D)over-bar*Sigma(c) interactions and the LHCb hidden-charmed pentaquarks
Source PublicationPHYSICS LETTERS B
Language英语
KeywordHidden-charmed pentaquark CHIRAL DYNAMICS Hadronic molecular state DECAYS The D Sigma(c)* and D*Sigma(c) interactions The Bethe-Saltpeter equation
AbstractVery recently, two hidden-charmed resonances P-c(4380) and P-c(4450) consistent with pentaquark states were observed at the LHCb detector. The two Pcstates locate just below the (D) over bar Sigma(c)* and (D) over bar* Sigma(c) thresholds with mass of gapsabout 5 and 15MeV, respectively. Inspired by this fact we perform a dynamical investigation about the (D) over bar*Sigma(c)(2520) and (D) over bar* Sigma(c)(2455) interactions which are described by the meson exchanges. A bound state which carries spin-parity J(P) = 3/2(-) is produced from the (D) over bar Sigma(c*)(2520) interaction, which is consistent with the P-c(4380) observed at the LHCb detector. From the (D) over bar* Sigma(c)(2455) interaction, a bound state with 5/2(+) is produced, which can be related to the P-c(4450). The results suggest that the P-c(4380) and P-c(4450) are good candidates of (D) over bar* Sigma(c)*(2520) and (D) over bar*Sigma(c)(2455) molecular states, respectively. (C) 2016 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
2016
Volume753Pages:547-551
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1016/j.physletb.2015.12.071
Indexed BySCI
Funding OrganizationMajor State Basic Research Development Program in China [2014CB845405] ; National Natural Science Foundation of China [11275235]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23013
Collection理论物理所科研产出_SCI论文
Affiliation1.Chinese Acad Sci, Inst Modern Phys, Div Theoret Phys, Lanzhou 730000, Peoples R China
2.Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
4.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
He, J. (D)over-bar Sigma(c)* and (D)over-bar*Sigma(c) interactions and the LHCb hidden-charmed pentaquarks[J]. PHYSICS LETTERS B,2016,753:547-551.
APA He, J.(2016).(D)over-bar Sigma(c)* and (D)over-bar*Sigma(c) interactions and the LHCb hidden-charmed pentaquarks.PHYSICS LETTERS B,753,547-551.
MLA He, J."(D)over-bar Sigma(c)* and (D)over-bar*Sigma(c) interactions and the LHCb hidden-charmed pentaquarks".PHYSICS LETTERS B 753(2016):547-551.
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