Statistical effect in the parton distribution functions of the nucleon
arXiv:0812.3294 · doi:10.1016/j.physletb.2008.11.033
Abstract
A new and simple statistical approach is performed to calculate the parton distribution functions (PDFs) of the nucleon in terms of light-front kinematic variables. We do not put in any extra arbitrary parameter or corrected term by hand, which guarantees the stringency of our approach. Analytic expressions of the -dependent PDFs are obtained in the whole region [0,1], and some features, especially the low- rise, are more agreeable with experimental data than those in some previous instant-form statistical models in the infinite-momentum frame (IMF). Discussions on heavy-flavored PDFs are also presented.
16 latex pages, 10 figures, to appear in PLB