期刊
PHYSICAL REVIEW D
卷 101, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.101.074016
关键词
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资金
- National Natural Science Foundation of China [11675033]
- Fundamental Research Funds for the Central Universities [DUT18LK27]
In this paper, we study the single spin asymmetry A(UT)(sin(phi h-phi S)) of a single hadron production in semiinclusive deep inelastic scattering within the framework of transverse momentum dependent factorization up to the next-to-leading logarithmic order of QCD. The asymmetry is a contribution of the convolution of the Sivers function and the unpolarized fragmentation function. Specifically, the Sivers function in the coordinate space and perturbative region can represent the convolution of the C coefficients and the corresponding collinear correlation functions, among which the Qiu-Sterman function is the most relevant one. We perform a detailed phenomenological analysis of the Sivers asymmetry at the kinematics of the HERMES and the COMPASS measurements. It is found that the obtained x(B)-, z(h)-, and P-h perpendicular to-dependent asymmetries are basically consistent with the HERMES and the COMPASS measurements.
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