(D)over-bar Sigma(c)* and (D)over-bar*Sigma(c) interactions and the LHCb hidden-charmed pentaquarks

doi:http://dx.doi.org/10.1016/j.physletb.2015.12.071

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	*(D)over-bar Sigma(c) and (D)over-barSigma(c) interactions and the LHCb hidden-charmed pentaquarks*
	He, J; He, J (reprint author), Chinese Acad Sci, Inst Modern Phys, Div Theoret Phys, Lanzhou 730000, Peoples R China.
刊名	PHYSICS LETTERS B
	2016
卷号	753 页码:547-551
关键词	Hidden-charmed Pentaquark Hadronic Molecular State The d Sigma(c)* And d*Sigma(c) Interactions The beThe-saltpeter Equation
DOI	http://dx.doi.org/10.1016/j.physletb.2015.12.071
英文摘要	Very 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 barSigma(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 barSigma(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/).
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21769]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	He, J (reprint author), Chinese Acad Sci, Inst Modern Phys, Div Theoret Phys, Lanzhou 730000, Peoples R China.
推荐引用方式 GB/T 7714	He, J,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,&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,et al."(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.