Remarks on the P-c structures and triangle singularities

doi:http://dx.doi.org/10.1140/epja/i2016-16318-4

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	Remarks on the P-c structures and triangle singularities
	Guo, FK; Meissner, UG; Nieves, J; Yang, Z; Guo, FK (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China.
刊名	EUROPEAN PHYSICAL JOURNAL A
	2016
卷号	52 期号:10 页码:318
DOI	http://dx.doi.org/10.1140/epja/i2016-16318-4
英文摘要	It was proposed that the narrow P-c(4450) structure observed by the LHCb Collaboration in the reaction Lambda(b) -> J/psi pK might be due to a triangle singularity around the chi(c1)-proton threshold at 4.45 GeV. We discuss the occurrence of a similar triangle singularity in the J/psi p invariant mass distribution for the decay Lambda(b) -> J/psi p pi, which could explain the bump around 4.45 GeV in the data. More precise measurements of this process would provide valuable information towards an understanding of the P-c structures.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21502]
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	Guo, FK (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Guo, FK,Meissner, UG,Nieves, J,et al. Remarks on the P-c structures and triangle singularities[J]. EUROPEAN PHYSICAL JOURNAL A,2016,52(10):318.
APA	Guo, FK,Meissner, UG,Nieves, J,Yang, Z,&Guo, FK .(2016).Remarks on the P-c structures and triangle singularities.EUROPEAN PHYSICAL JOURNAL A,52(10),318.
MLA	Guo, FK,et al."Remarks on the P-c structures and triangle singularities".EUROPEAN PHYSICAL JOURNAL A 52.10(2016):318.