出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We propose measurement of transverse single spin asymmetry (SSA) in charmonium production as a probe of gluon Sivers function. We estimate SSA in low virtuality electroproduction of J/y using color evaporationmodel of charmoniumproduction and existing models of the gluon Sivers function and find sizable asymmetry at JLab, HERMES, COMPASS and eRHIC energies.
