QCD Factorization of Quasi Generalized Quark Distributions

Abstract

We study the factorization of quasi generalized quark distributions with twist-2 generalized parton distributions. We use an approach which is different than that used in literature. Using the approach we derive the factorization relations of all quasi generalized quark distributions at one-loop. The contributions from twist-2 generalized gluon distributions are included. Our results apply not only to the quasi distributions of a spin-1/2 hadron but also to those of a hadron with any spin.

Comments: References, discussions and evolution equations of quark GPDs derived from results of the paper are added. To appear in JHEP