Decay behaviors of possible Lambda(c(c)over-bar) states in hadronic molecule pictures

doi:10.1103/PhysRevD.100.056006

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	Decay behaviors of possible Lambda(c(c)over-bar) states in hadronic molecule pictures
	Shen, Chao-Wei ; Wu, Jia-Jun ; Zou, Bing-Song
刊名	PHYSICAL REVIEW D
	2019
卷号	100 期号:5 页码:56006
关键词	HIDDEN-CHARM PENTAQUARK BARYONS MESON
ISSN号	2470-0010
DOI	10.1103/PhysRevD.100.056006
英文摘要	In 2010, Lambda(c (c) over bar)* states were predicted as the strange number S = -1 partners of N-c (c) over bar, which are well known now as the P-c states and observed experimentally by the LHCb Collaboration. We analyze the decay behaviors of Lambda(c (c) over bar) as S-wave hadronic molecules within the effective Lagrangian framework by a similar method, which has been applied on P-c states successfully. With partial widths of possible decay channels calculated, we find that Lambda(c (c) over bar) (4213) and Lambda(c (c) over bar)(4403), which are formed as pseudoscalar meson baryon molecules, mainly decay to the eta(c)Lambda channel. For the two vector meson baryon molecule states, our results show that the total decay width with J(P) = 1/2(-) is by one order of magnitude larger than that with J(P) = 3/2(-). The decay patterns and relative decay ratios are very different for Lambda(c (c) over bar)(4370) being a D-s(-) Lambda(+)(c) or (D) over barXi(c) molecule state. The main decay channels of Lambda(c (c) over bar)(4550) are (D) over bar (()())Xi(c) ((),'())because of the pseudoscalar meson exchange mechanism. In addition, (D) over barXi(c ) is the dominant decay channel of Lambda(c (c) over bar)(4490), which is assumed as a (D) over bar Xi(c)* bound state. These decay patterns of the Lambda(c (c) over bar)* states would provide guidance for future experimental searches and help us to understand their internal structures.
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/311006/27201]
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.[Shen, Chao-Wei 2.Wu, Jia-Jun 3.UCAS, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Cent S Univ, Sch Phys, Changsha 410083, Peoples R China
推荐引用方式 GB/T 7714	Shen, Chao-Wei,Wu, Jia-Jun,Zou, Bing-Song. Decay behaviors of possible Lambda(c(c)over-bar) states in hadronic molecule pictures[J]. PHYSICAL REVIEW D,2019,100(5):56006.
APA	Shen, Chao-Wei,Wu, Jia-Jun,&Zou, Bing-Song.(2019).Decay behaviors of possible Lambda(c(c)over-bar) states in hadronic molecule pictures.PHYSICAL REVIEW D,100(5),56006.
MLA	Shen, Chao-Wei,et al."Decay behaviors of possible Lambda(c(c)over-bar) states in hadronic molecule pictures".PHYSICAL REVIEW D 100.5(2019):56006.