Kinematic distributions of the η c leptoproduction in association with light hadrons

Abstract

Abstract The η c meson leptoproduction is calculated within the nonrelativistic QCD framework for the first time. It is found that the colour-singlet channel, although suppressed by a factor of α s relative to the colour-octet ones, provides important contribution for almost all the experimental conditions, which disagrees with some of the expectations before computation. We present the differential cross sections with respect to p t 2 $$ {p}_t^2 $$ , p t ★ 2 $$ {p}_t^{\bigstar 2} $$ , Q 2, W, and z, for both HERA and EIC experimental conditions as a reference for future studies. The scale dependence and long-distance-matrix-element dependence are also investigated in this paper.

Keywords

• Deep Inelastic Scattering (Phenomenology)