Single-spin asymmetries in SIDIS induced by anomalous quark-gluon and quark-photon couplings
文献类型:期刊论文
作者 | Cao, Xu1,2; Korchagin, Nikolai1,2,3; Kochelev, Nikolai1,2,3; Zhang, Pengming1,2 |
刊名 | PHYSICAL REVIEW D |
出版日期 | 2017-12-13 |
卷号 | 96页码:9 |
ISSN号 | 2470-0010 |
DOI | 10.1103/PhysRevD.96.114010 |
英文摘要 | We calculate the contribution of the nonperturbative Pauli couplings in the quark-photon and quark-gluon vertices to the single-spin asymmetries (SSAs) in semi-inclusive deep inelastic scattering (SIDIS). We describe the nucleon using the spectator model with scalar and axial-vector diquarks. Both of the new couplings can cause the helicity flip of the struck quark. The helicity flip and the rescattering induced by the nonperturbative gluon exchange between the struck quark and diquark lead to the SSAs. Their azimuthal dependencies are the same as that usually ascribed to the Collins and Sivers effects. Our numerical results, based on the instanton model for the QCD vacuum, show that the nonperturbative quark-gluon and quark-photon interactions have a strong influence on these asymmetries. |
WOS关键词 | DEEP-INELASTIC SCATTERING ; FINAL-STATE INTERACTIONS ; SIVERS FUNCTION ; CHROMOMAGNETIC MOMENT ; HARD-SCATTERING ; INSTANTONS ; QCD ; DISTRIBUTIONS ; MODEL ; TMDS |
资助项目 | National Natural Science Foundation of China[11405222] ; National Natural Science Foundation of China[11575254] ; Chinese Academy of Sciences visiting professorship for senior international scientists[2013T2J0011] ; Chinese Academy of Sciences President's international fellowship initiative[2017PM0043] |
WOS研究方向 | Astronomy & Astrophysics ; Physics |
语种 | 英语 |
出版者 | AMER PHYSICAL SOC |
WOS记录号 | WOS:000417833600003 |
资助机构 | National Natural Science Foundation of China ; Chinese Academy of Sciences visiting professorship for senior international scientists ; Chinese Academy of Sciences President's international fellowship initiative |
源URL | [http://119.78.100.186/handle/113462/46143] |
专题 | 中国科学院近代物理研究所 |
通讯作者 | Cao, Xu; Korchagin, Nikolai; Kochelev, Nikolai; Zhang, Pengming |
作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, CAS Key Lab High Precis Nucl Spect, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Ctr Nucl Matter Sci, Lanzhou 730000, Gansu, Peoples R China 3.Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Moscow Region, Russia |
推荐引用方式 GB/T 7714 | Cao, Xu,Korchagin, Nikolai,Kochelev, Nikolai,et al. Single-spin asymmetries in SIDIS induced by anomalous quark-gluon and quark-photon couplings[J]. PHYSICAL REVIEW D,2017,96:9. |
APA | Cao, Xu,Korchagin, Nikolai,Kochelev, Nikolai,&Zhang, Pengming.(2017).Single-spin asymmetries in SIDIS induced by anomalous quark-gluon and quark-photon couplings.PHYSICAL REVIEW D,96,9. |
MLA | Cao, Xu,et al."Single-spin asymmetries in SIDIS induced by anomalous quark-gluon and quark-photon couplings".PHYSICAL REVIEW D 96(2017):9. |
入库方式: OAI收割
来源:近代物理研究所
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