Triangle singularity and a possible phi p resonance in the lambda(+)(c) -> pi(0)phi p decay

doi:http://dx.doi.org/10.1016/j.physletb.2017.09.060

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	Triangle singularity and a possible phi p resonance in the lambda(+)(c) -> pi(0)phi p decay
	Guo, FK (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Guo, FK (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China.; Xie, JJ; Guo, FK
刊名	PHYSICS LETTERS B
	2017
卷号	774 页码:108-113
DOI	http://dx.doi.org/10.1016/j.physletb.2017.09.060
英文摘要	We study the lambda(+)(c) -> pi(0)phi p decay by considering a triangle singularity mechanism. In this mechanism, the lambda(c) decays into the Ksigma(1385), the sigma(1385) decays into the pi degrees sigma (or A), and then the Ksigma (or A) interact to produce the phi p in the final state. This mechanism produces a peak structure around 2020 MeV. In addition, the possibility that there is a hidden-strange pentaquark-like state is also considered by taking into account the final state interactions of Klambda ,Ksigma, and phi p. We conclude that it is difficult to search for the hidden-strange analogue of the P-c states in this decay. However, we do expect nontrivial behavior in the phi p invariant mass distribution. The predictions can be tested by experiments such as BESIII, LHCb and Belle-II. (c) 2017 The Author(s). Published by Elsevier B.V.
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/311006/21935]
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, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Guo, FK (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China.
推荐引用方式 GB/T 7714	Guo, FK ,Guo, FK ,Xie, JJ,et al. Triangle singularity and a possible phi p resonance in the lambda(+)(c) -> pi(0)phi p decay[J]. PHYSICS LETTERS B,2017,774:108-113.
APA	Guo, FK ,Guo, FK ,Xie, JJ,&Guo, FK.(2017).Triangle singularity and a possible phi p resonance in the lambda(+)(c) -> pi(0)phi p decay.PHYSICS LETTERS B,774,108-113.
MLA	Guo, FK ,et al."Triangle singularity and a possible phi p resonance in the lambda(+)(c) -> pi(0)phi p decay".PHYSICS LETTERS B 774(2017):108-113.