Search for the Sigma* state in Lambda(+)(c) -> pi(+)pi(0)pi(-)Sigma(+) decay by triangle singularity
文献类型：期刊论文
| 作者 | Oset, Eulogio2,3; Xie, Ju-Jun1 |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2019-05-10 |
| 卷号 | 792页码:450-453 |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2019.04.011 |
| 通讯作者 | Xie, Ju-Jun(xiejujun@impcas.ac.cn) |
| 英文摘要 | A Sigma* resonance with spin-parity J(P) = 1/2(-) and mass in the vicinity of the (K) over barN threshold has been predicted in the unitary chiral approach and inferred from the analysis of CLAS data on the gamma p -> K+pi(0)Sigma(0) reaction. In this work, based on the dominant Cabibbo favored weak decay mechanism, we perform a study of Lambda(+)(c) -> pi(+)pi(0)Sigma* with the possible Sigma* state decaying into pi(-)Sigma(+) through a triangle diagram. This process is initiated by Lambda(+)(c) -> pi(+)(K) over bar *N, then the (K) over bar* decays into (K) over bar pi and (K) over barN produce the Sigma* through a triangle loop containing (K) over bar *N (K) over bar which develops a triangle singularity. We show that the pi(-)Sigma(+) state is generated from final state interaction of (K) over barN in S-wave and isospin I = 1, and the Lambda(+)(c) -> pi(+)pi(0)pi(-)Sigma(+) decay can be used to study the possible Sigma* state around the (K) over barN threshold. The proposed decay mechanism can provide valuable information on the nature of the Sigma* resonance and can in principle be tested by facilities such as LHCb, BelleII and BESIII. (C) 2019 The Authors. Published by Elsevier B.V. |
| WOS关键词 | CHIRAL DYNAMICS ; LAMBDA(1405) ; SYMMETRY |
| 资助项目 | National Natural Science Foundation of China[11475227] ; National Natural Science Foundation of China[11735003] ; Youth Innovation Promotion Association CAS[2016367] ; Spanish Ministerio de Economia y Competitividad ; European FEDER funds[FIS2011-28853-C02-01] ; European FEDER funds[FIS2011-28853-C02-02] ; European FEDER funds[FIS2014-57026-REDT] ; European FEDER funds[FIS2014-51948-C2-1-P] ; European FEDER funds[FIS2014-51948-C2-2-P] ; Generalitat Valenciana[Prometeo II-2014/068] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000466802100064 |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Spanish Ministerio de Economia y Competitividad ; European FEDER funds ; Generalitat Valenciana |
| 源URL | [http://119.78.100.186/handle/113462/133333]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Xie, Ju-Jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Ctr Mixto Univ Valencia CSIC, Inst Invest Paterna, Dept Fis Teor, Aptdo 22085, Valencia 46071, Spain 3.Ctr Mixto Univ Valencia CSIC, Inst Invest Paterna, IFIC, Aptdo 22085, Valencia 46071, Spain |
| 推荐引用方式 GB/T 7714 | Oset, Eulogio,Xie, Ju-Jun. Search for the Sigma* state in Lambda(+)(c) -> pi(+)pi(0)pi(-)Sigma(+) decay by triangle singularity[J]. PHYSICS LETTERS B,2019,792:450-453. |
| APA | Oset, Eulogio,&Xie, Ju-Jun.(2019).Search for the Sigma* state in Lambda(+)(c) -> pi(+)pi(0)pi(-)Sigma(+) decay by triangle singularity.PHYSICS LETTERS B,792,450-453. |
| MLA | Oset, Eulogio,et al."Search for the Sigma* state in Lambda(+)(c) -> pi(+)pi(0)pi(-)Sigma(+) decay by triangle singularity".PHYSICS LETTERS B 792(2019):450-453. |
入库方式： OAI收割
来源：近代物理研究所
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