Probing nuclear gluons with heavy quarks at EIC
Abstract
We explore the feasibility of direct measurements of nuclear gluon densities using heavy-quark production (open charm, beauty) at a future Electron-Ion Collider (EIC). We focus on the regions x > 0.3 (EMC effect) and x ~ 0.05-0.1 (antishadowing), where the nuclear modifications of the gluon density offer insight into non-nucleonic degrees of freedom and the QCD structure of nucleon-nucleon interactions. We describe the charm production rates and momentum distributions in nuclear deep-inelastic scattering (DIS) at large x_B, and comment on the possible methods for charm reconstruction using next-generation detectors at the EIC (pi/K identification, tracking, vertex detection).
Cite
@article{arxiv.1608.08686,
title = {Probing nuclear gluons with heavy quarks at EIC},
author = {E. Chudakov and D. Higinbotham and Ch. Hyde and S. Furletov and Yu. Furletova and D. Nguyen and M. Stratmann and M. Strikman and C. Weiss and R. Yoshida},
journal= {arXiv preprint arXiv:1608.08686},
year = {2016}
}
Comments
5 pages, 4 figures. Proceedings of XXIV International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2016), DESY Hamburg, Germany, 11-15 April, 2016