# EPS HEP 2015

22-29 July 2015
Europe/Vienna timezone

## The role of intrinsic charm in the proton via photon production in association with a charm quark

Jul 24, 2015, 12:15 PM
15m
HS32

### Speaker

Ali Khorramian (IPM and Semnan University)

### Description

We present a comparative analysis of the non-perturbative intrinsic charm quark contribution in the proton, using the inclusive production of $\gamma +c$-jet in $pp$ and $p\bar{p}$ collisions and for the kinematic regions that are sensitive to this contribution. We discuss the $Q^2$ evolution of intrinsic quark distributions and present a code that provide these distributions as a function of $x$ and $Q^2$ for any arbitrary momentum fraction. For the $p\bar{p}$ collisions at the Tevatron, the results are compared with the recent experimental data of D0 at $\sqrt{s} =1.96$ TeV and also predictions for $pp$ collisions at $\sqrt{s} =8$ TeV and $\sqrt{s} =13$ TeV for the LHC.