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).

arXiv comment5 pages, 4 figures. Proceedings of XXIV International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2016), DESY Hamburg, Germany, 11-15 April, 2016

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Cited by in corpus (4)

• Large-P_T inclusive photoproduction of J/psi in electron-proton collisions at HERA and the EIC
• Heavy meson tomography of cold nuclear matter at the electron-ion collider
• Heavy flavor jet production and substructure in electron-nucleus collisions
• Heavy quark production at an Electron-Ion Collider