Isospin breaking decays as a diagnosis of the hadronic molecular structure of the P-c(4457)

doi:10.1103/PhysRevD.99.091501

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	Isospin breaking decays as a diagnosis of the hadronic molecular structure of the P-c(4457)
	Guo, FK ; Jing, HJ ; Meissner, UG ; Sakai, S 3
刊名	PHYSICAL REVIEW D
	2019
卷号	99 期号:9 页码:91501
关键词	HIDDEN-CHARM PENTAQUARK STATES
ISSN号	2470-0010
DOI	10.1103/PhysRevD.99.091501
英文摘要	The LHCb Collaboration announced the observation of three narrow structures consistent with hidden-charm pentaquark states. They are candidates of hadronic molecules formed of a pair of a charmed baryon and an anticharmed meson. Among them, the P-c(4457) mass is consistent with earlier predictions of a Sigma(c)(D) over bar* molecule with I = 1/2. We point out that if such a picture were true, one would have B(P-c(4457) -> J/psi Delta(+))/B(P-c(4457) -> J/psi p) at the level ranging from a few percent to about 30%. Such a large isospin breaking decay ratio is two to three orders of magnitude larger than that for normal hadron resonances. It is a unique feature of the Sigma(c)(D) over bar* molecular model, and can be checked by LHCb.
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/311006/23439]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys, D-52425 Julich, Germany 2.[Guo, Feng-Kun 3.Jing, Hao-Jie 4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 6.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany 7.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany 8.Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany 9.Tbilisi State Univ, GE-0186 Tbilisi, Georgia
推荐引用方式 GB/T 7714	Guo, FK,Jing, HJ,Meissner, UG,et al. Isospin breaking decays as a diagnosis of the hadronic molecular structure of the P-c(4457)[J]. PHYSICAL REVIEW D,2019,99(9):91501.
APA	Guo, FK,Jing, HJ,Meissner, UG,&Sakai, S.(2019).Isospin breaking decays as a diagnosis of the hadronic molecular structure of the P-c(4457).PHYSICAL REVIEW D,99(9),91501.
MLA	Guo, FK,et al."Isospin breaking decays as a diagnosis of the hadronic molecular structure of the P-c(4457)".PHYSICAL REVIEW D 99.9(2019):91501.