Transverse single spin asymmetry A(UT)(sin(phi h-phi S)) for single hadron production in semi-inclusive DIS
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论文类型：期刊论文
发表时间：2020-04-15
发表刊物：PHYSICAL REVIEW D
收录刊物：SCIE
卷号：101
期号：7
ISSN号：2470-0010
摘要：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.
发表时间：2020-04-15