Probing the Sivers asymmetries through J/psi photoproduction in (p)up arrow(p) collision with forward proton tagging
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论文类型：期刊论文
发表时间：2019-07-08
发表刊物：PHYSICAL REVIEW D
收录刊物：SCIE
卷号：100
期号：1
ISSN号：2470-0010
摘要：In this paper we probe the Sivers asymmetries through J/psi photoproduction in (p)up arrow(p) collision within the nonrelativistic QCD framework, based on the color-octet model and the transverse-momentum-dependent parton distributions (TMDs). Both the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution and TMD evolution are included. The intensity and sign of the Sivers asymmetry are strongly dependent upon the evolution model used to investigate the gluon Sivers function (GSF). Sizable asymmetries are obtained as a function of the rapidity, log(x(gamma)), or log(x(g)) using a recent parametrization of the GSF at the RHIC and AFTER@LHC experiments with the planned LHC forward-detector acceptances.
发表时间：2019-07-08