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Instanton induced transverse single spin asymmetry for pi(0) production in pp scattering

文献类型：期刊论文

作者Korchagin, Nikolai1; Kochelev, Nikolai; Zhang, Pengming2
刊名PHYSICAL REVIEW D
出版日期2021-02-15
卷号103期号:3页码:15
ISSN号2470-0010
DOI10.1103/PhysRevD.103.034012
通讯作者Korchagin, Nikolai(korchagin@impcas.ac.cn) ; Zhang, Pengming(zhangpm5@mail.sysu.edu.cn)
英文摘要We calculate the production cross section and the transverse single-spin asymmetry for pion in p(up arrow) + -p -> pi(0) + X. Our computation is based on existence of the instanton induced effective quark-gluon and quark-gluon-pion interactions with a strong spin dependency. In this framework we calculate the cross section without using fragmentation functions. We compare predictions of the model with data from RHIC. Our numerical results, based on the instanton liquid model for QCD vacuum, arc in agreement with unpolarized cross section data. The asymmetry grows with the transverse momentum of pion k(t) in accordance with experimental observations. It reaches a value similar to 10% but at higher k(t) than experiment shows.
资助项目National Natural Science Foundation of China[11975320] ; National Natural Science Foundation of China[11875296] ; Chinese Academy of Sciences Presidents International Fellowship Initiative[2020PM0073]
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000618081300004
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences Presidents International Fellowship Initiative
源URL[http://119.78.100.186/handle/113462/137864]  
专题中国科学院近代物理研究所
通讯作者Korchagin, Nikolai; Zhang, Pengming
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519082, Peoples R China
推荐引用方式
GB/T 7714		 Korchagin, Nikolai,Kochelev, Nikolai,Zhang, Pengming. Instanton induced transverse single spin asymmetry for pi(0) production in pp scattering[J]. PHYSICAL REVIEW D,2021,103(3):15.
APA Korchagin, Nikolai,Kochelev, Nikolai,&Zhang, Pengming.(2021).Instanton induced transverse single spin asymmetry for pi(0) production in pp scattering.PHYSICAL REVIEW D,103(3),15.
MLA Korchagin, Nikolai,et al."Instanton induced transverse single spin asymmetry for pi(0) production in pp scattering".PHYSICAL REVIEW D 103.3(2021):15.

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来源：近代物理研究所

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