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Role of a triangle singularity in the gamma p -> K+Lambda (1405) reaction

文献类型：期刊论文

作者Wang, En1; Xie, Ju-Jun2; Liang, Wei-Hong3; Guo, Feng-Kun4; Oset, Eulogio5,6,7
刊名PHYSICAL REVIEW C
出版日期2017-01-17
卷号95页码:9
ISSN号2469-9985
DOI10.1103/PhysRevC.95.015205
英文摘要We show the effects of a triangle singularity mechanism for the gamma p -> K+Lambda(1405) reaction. The mechanism has a N-* resonance around 2030 MeV, which decays into K*Sigma. The K-* decays to K+ pi, and the pi Sigma merge to form the Lambda (1405). This mechanism produces a peak around root s = 2110 MeV, and has its largest contribution around cos theta= 0. The addition of this mechanism to other conventional ones leads to a good reproduction of d sigma/dcos theta and the integrated cross section around this energy, providing a solution to a problem encountered in previous theoretical models.
WOS关键词KAON-NUCLEON INTERACTIONS ; CHIRAL DYNAMICS ; BARYON CHANNELS ; PHOTOPRODUCTION ; LAMBDA(1405) ; THRESHOLD ; PROTON ; STATES ; CONSTRAINTS ; RESONANCES
资助项目Chinese Academy of Science[2013T2J0012] ; National Natural Science Foundation of China[11565007] ; National Natural Science Foundation of China[11547307] ; National Natural Science Foundation of China[11475227] ; National Natural Science Foundation of China[11505158] ; Youth Innovation Promotion Association CAS[2016367] ; DFG ; NSFC[CRC 110] ; NSFC[11621131001] ; Chinese Academy of Sciences[QYZDB-SSW-SYS013] ; Thousand Talents Plan for Young Professionals ; China Postdoctoral Science Foundation[2015M582197] ; Postdoctoral Research Sponsorship in Henan Province[2015023] ; 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 in the program Prometeo[II-2014/068]
WOS研究方向Physics
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000392077300005
资助机构Chinese Academy of Science ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; DFG ; NSFC ; Chinese Academy of Sciences ; Thousand Talents Plan for Young Professionals ; China Postdoctoral Science Foundation ; Postdoctoral Research Sponsorship in Henan Province ; Spanish Ministerio de Economia y Competitividad ; European FEDER funds ; Generalitat Valenciana in the program Prometeo
源URL[http://119.78.100.186/handle/113462/44200]  
专题中国科学院近代物理研究所
通讯作者Wang, En
作者单位1.Zhengzhou Univ, Dept Phys, Zhengzhou 450001, Henan, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
3.Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China
4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
6.Univ Valencia, CSIC, Inst Invest Paterna, Dept Fis Teor, Apartado 22085, Valencia 46071, Spain
7.Univ Valencia, CSIC, Inst Invest Paterna, IFIC,Ctr Mixto, Apartado 22085, Valencia 46071, Spain
推荐引用方式
GB/T 7714		 Wang, En,Xie, Ju-Jun,Liang, Wei-Hong,et al. Role of a triangle singularity in the gamma p -> K+Lambda (1405) reaction[J]. PHYSICAL REVIEW C,2017,95:9.
APA Wang, En,Xie, Ju-Jun,Liang, Wei-Hong,Guo, Feng-Kun,&Oset, Eulogio.(2017).Role of a triangle singularity in the gamma p -> K+Lambda (1405) reaction.PHYSICAL REVIEW C,95,9.
MLA Wang, En,et al."Role of a triangle singularity in the gamma p -> K+Lambda (1405) reaction".PHYSICAL REVIEW C 95(2017):9.

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来源：近代物理研究所

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