Pion-induced K* production with Sigma* baryon off proton target | |
Xiang, Jie2; Wang, Xiao-Yun2,3; Xu, Hao1; He, Jun4,5 | |
刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS |
2020-11-01 | |
卷号 | 72期号:11 |
关键词 | effective Lagrangian approach Regge model hadron states |
ISSN号 | 0253-6102 |
DOI | 10.1088/1572-9494/abb7da |
英文摘要 | In this work, the reaction pi p ->. K*Sigma* is investigated with an effective Lagrangian approach. The contributions from the Born terms, including the s, t, and u channel, are considered, and the Regge model and the Feynman model are applied to treat the t-channel contribution. The existing experimental data can be reproduced with the best-fitted chi(2) being 2.38 and 1.54 for the Feynman and Regge models, respectively. Moreover, it is found that the contribution from the t channel is dominant in the cross-section. The contribution of the u channel is mainly distributed at backward angles, and the contribution from the s channel is small and negligible. In the Feynman model, the contribution of the t-channel K exchange is much larger than the contribution of the K* exchange, while in the Regge model the contribution of the t-channel K exchange is comparable to that of the K* exchange. Prediction about the differential cross-section of the pi(-) p -> K*Sigma* reaction is also presented, which is helpful for clarifying the role of the Regge treatment. The current results suggest high-precision experimental measurements which can be performed at J-PARC and COMPASS. |
WOS研究方向 | Physics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000584942200001 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/155067] |
专题 | 理学院 外国语学院 |
作者单位 | 1.Northwestern Polytech Univ, Sch Sci, Dept Appl Phys, Xian 710129, Peoples R China; 2.Lanzhou Univ Technol, Lanzhou 730050, Peoples R China; 3.Lanzhou Univ Technol, Dept Phys, Lanzhou 730050, Peoples R China; 4.Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210097, Jiangsu, Peoples R China 5.Nanjing Normal Univ, Dept Phys, Nanjing 210097, Jiangsu, Peoples R China; |
推荐引用方式 GB/T 7714 | Xiang, Jie,Wang, Xiao-Yun,Xu, Hao,et al. Pion-induced K* production with Sigma* baryon off proton target[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2020,72(11). |
APA | Xiang, Jie,Wang, Xiao-Yun,Xu, Hao,&He, Jun.(2020).Pion-induced K* production with Sigma* baryon off proton target.COMMUNICATIONS IN THEORETICAL PHYSICS,72(11). |
MLA | Xiang, Jie,et al."Pion-induced K* production with Sigma* baryon off proton target".COMMUNICATIONS IN THEORETICAL PHYSICS 72.11(2020). |
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