Single-spin asymmetries in SIDIS induced by anomalous quark-gluon and quark-photon couplings

doi:10.1103/PhysRevD.96.114010

	Single-spin asymmetries in SIDIS induced by anomalous quark-gluon and quark-photon couplings
	Cao, Xu 1,2; Korchagin, Nikolai 1,2,3; Kochelev, Nikolai 1,2,3; Zhang, Pengming1,2
刊名	PHYSICAL REVIEW D
	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.
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关键词	DEEP-INELASTIC SCATTERING ; FINAL-STATE INTERACTIONS ; SIVERS FUNCTION ; CHROMOMAGNETIC MOMENT ; HARD-SCATTERING ; INSTANTONS ; QCD ; DISTRIBUTIONS ; MODEL ; TMDS
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
内容类型	期刊论文
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.