中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Study of the a(1)(1260) resonance in the gamma p -> pi(+)pi(+)pi(-)n reaction

文献类型:期刊论文

作者Zhang, Xu1,2; Xie, Ju-Jun1,2
刊名CHINESE PHYSICS C
出版日期2019-06-01
卷号43期号:6页码:6
ISSN号1674-1137
关键词photoproduction mass distributions total cross-section a(1)(1260)
DOI10.1088/1674-1137/43/6/064104
通讯作者Xie, Ju-Jun(xiejujun@impcas.ac.cn)
英文摘要Within an effective Lagrangian approach and resonance model, we study the gamma p -> a(1) (1260)(+)n and gamma p -> pi(+)pi(+)pi(-)n reactions via the pi-exchange mechanism. For the gamma p -> pi(+)pi(+)pi(-)n reaction, we perform a calculation of the differential and total cross-sections by considering the contributions of the a(1)(1260) intermediate resonance decaying into rho pi and then into pi(+)pi(+)pi(-). Besides, the non-resonance process is also considered. With a lower mass of a(1)(1260), the experimental data for the invariant pi(+)pi(+)pi(-) mass distributions can be fairly well reproduced. For the gamma p -> a(1)(1260)(+)n reaction, with the model parameters, the total cross-section is of the order of 10 mu b at the photon beam energy E-gamma similar to 2.5 GeV. It is expected that the model calculations in this work could be tested by future experiments.
WOS关键词PHOTOPRODUCTION ; MESON ; WIDTH ; VECTOR ; PHOTONS ; CHAMBER ; DECAYS ; MODEL ; TAU ; ETA
资助项目National Natural Science Foundation of China[11475227] ; National Natural Science Foundation of China[11735003] ; Youth Innovation Promotion Association CAS[2016367]
WOS研究方向Physics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000468501700007
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
源URL[http://119.78.100.186/handle/113462/133500]  
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, Gansu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 101408, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Xu,Xie, Ju-Jun. Study of the a(1)(1260) resonance in the gamma p -> pi(+)pi(+)pi(-)n reaction[J]. CHINESE PHYSICS C,2019,43(6):6.
APA Zhang, Xu,&Xie, Ju-Jun.(2019).Study of the a(1)(1260) resonance in the gamma p -> pi(+)pi(+)pi(-)n reaction.CHINESE PHYSICS C,43(6),6.
MLA Zhang, Xu,et al."Study of the a(1)(1260) resonance in the gamma p -> pi(+)pi(+)pi(-)n reaction".CHINESE PHYSICS C 43.6(2019):6.

入库方式: OAI收割

来源:近代物理研究所

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