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

doi:10.1016/j.physletb.2017.09.060

	Triangle singularity and a possible phi p resonance in the lambda(+)(c) -> pi(0)phi p decay
	Xie, Ju-Jun 1,3; Guo, Feng-Kun 2,3
刊名	PHYSICS LETTERS B
	2017-11-10
卷号	774 页码:108-113
ISSN号	0370-2693
DOI	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.
资助项目	National Natural Science Foundation of China (NSFC)[11475227] ; National Natural Science Foundation of China (NSFC)[11647601] ; DFG ; NSFC[11621131001] ; NSFC[CRC 110] ; CAS Key Research Program of Frontier Sciences[QYZDB-SSW-SYS013] ; Youth Innovation Promotion Association of CAS[2016367] ; Thousand Talents Plan for Young Professionals
WOS关键词	CROSS-SECTION ; BARYON ; PHOTOPRODUCTION ; THRESHOLD ; PENTAQUARK ; COMPONENTS ; PROTON ; STATES
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000414973200017
资助机构	National Natural Science Foundation of China (NSFC) ; DFG ; NSFC ; CAS Key Research Program of Frontier Sciences ; Youth Innovation Promotion Association of CAS ; Thousand Talents Plan for Young Professionals
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/47076]
专题	中国科学院近代物理研究所
通讯作者	Guo, Feng-Kun
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, 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, Sch Phys Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xie, Ju-Jun,Guo, Feng-Kun. 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	Xie, Ju-Jun,&Guo, Feng-Kun.(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	Xie, Ju-Jun,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.