Resonances X(4140), X(4160), and P-cs(4459) in the decay of Lambda(b) -> J/psi Lambda phi

doi:10.1103/PhysRevD.103.034019

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	Resonances X(4140), X(4160), and P-cs(4459) in the decay of Lambda(b) -> J/psi Lambda phi
	Liu, Wen-Ying ; Hao, Wei 1,2; Wang, Guan-Ying ; Wang, Yan-Yan ; Wang, En ; Li, De-Min
刊名	PHYSICAL REVIEW D
	2021
卷号	103 期号:3 页码:34019
ISSN号	2470-0010
DOI	10.1103/PhysRevD.103.034019
英文摘要	We study the decay of Lambda(b) -> J/psi Lambda phi by taking into account the intermediate resonances X(4140), X(4160), and P-cs(4459). In addition to the peak of the X(4140), we also find a bump structure around 4160 MeV followed by a cusp structure around D-s(D) over bar (s) threshold in the J/psi phi invariant mass distribution of the Lambda(b) -> J/psi Lambda phi process, which can be associated to the D-s(D) over bar (s) molecular state X(4160). We also show that this reaction can also be used to confirm the existence of the hidden-charm pentaquark P-cs(4459) with strangeness. We predict an enhancement structure close to the threshold in the D-s(D) over bar (s) invariant mass distribution of the Lambda(b) -> D-s(D) over bar (s)Lambda process, which is the reflection of the X(4160) and should not be misidentified with a new resonance. We strongly suggest experimentalists to further measure these processes, which can be useful to clarify the nature of X(4140) and X(4160) resonances, and to confirm the existence of the P-cs(4459).
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/311006/27464]
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.Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 450001, Henan, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci UCAS, Beijing 100049, Peoples R China 4.Henan Univ, Sch Phys & Elect, Kaifeng 475004, Peoples R China 5.Zhengzhou Univ Aeronaut, Sch Mat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China
推荐引用方式 GB/T 7714	Liu, Wen-Ying,Hao, Wei,Wang, Guan-Ying,et al. Resonances X(4140), X(4160), and P-cs(4459) in the decay of Lambda(b) -> J/psi Lambda phi[J]. PHYSICAL REVIEW D,2021,103(3):34019.
APA	Liu, Wen-Ying,Hao, Wei,Wang, Guan-Ying,Wang, Yan-Yan,Wang, En,&Li, De-Min.(2021).Resonances X(4140), X(4160), and P-cs(4459) in the decay of Lambda(b) -> J/psi Lambda phi.PHYSICAL REVIEW D,103(3),34019.
MLA	Liu, Wen-Ying,et al."Resonances X(4140), X(4160), and P-cs(4459) in the decay of Lambda(b) -> J/psi Lambda phi".PHYSICAL REVIEW D 103.3(2021):34019.