Speaker
春华 曾
(Institute of Modern Physics)
Description
In this letter we present a global analysis of Sivers function, transversity distribution functions and Collins fragmentation functions within TMD factorization. This analysis encompasses the latest data sets from semi-inclusive deep inelastic scattering, Drell-Yan, and $W^{\pm}/Z$-boson production as recently reported by the COMPASS and STAR Collaborations. Upon integrating this new data into our fitting, the accuracy of the $d$ quark extraction for both transversity and Sivers distribution is notably improved.
