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题名: Triangle singularity and a possible phi p resonance in the lambda(+)(c) -> pi(0)phi p decay
作者: Xie, JJ ;  Guo, FK
刊名: PHYSICS LETTERS B
出版日期: 2017
卷号: 774, 页码:108-113
学科分类: Astronomy & Astrophysics; Physics
DOI: http://dx.doi.org/10.1016/j.physletb.2017.09.060
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.
文章类型: Article
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 K*sigma*(1385), the sigma*(1385) decays into the pi degrees sigma (or A), and then the K*sigma (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 K*lambda ,K*sigma, 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.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: CROSS-SECTION ;  BARYON ;  PHOTOPRODUCTION ;  THRESHOLD ;  PENTAQUARK ;  COMPONENTS ;  PROTON ;  STATES
项目资助者: National Natural Science Foundation of China (NSFC) [11475227, 11647601] ;  DFG ;  NSFC [11621131001, 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
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21935
Appears in Collections:理论物理所2017年知识产出_期刊论文

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Recommended Citation:
Xie, JJ,Guo, FK. 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.
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