Publications and Research
Document Type
Article
Publication Date
2019
Abstract
The production of a hard dijet with small transverse momentum imbalance in semi-inclusive DIS probes the conventional and linearly polarized Weizsäcker-Williams (WW) transverse momentum dependent (TMD) gluon distributions. The latter, in particular, gives rise to an azimuthal dependence of the dijet cross section. In this paper we analyze the feasibility of a measurement of these TMDs through dijet production in DIS on a nucleus at an electron-ion collider. We introduce the MCDIJET Monte Carlo generator to sample quark-antiquark dijet configurations based on leading-order parton level cross sections with WW gluon distributions that solve the nonlinear small-x QCD evolution equations. These configurations are fragmented to hadrons using PYTHIA, and final-state jets are reconstructed. We report on background studies and on the effect of kinematic cuts introduced to remove beam jet remnants. We estimate that with an integrated luminosity of 20 fb−1/nucleon one can determine the distribution of linearly polarized gluons with a statistical accuracy of approximately 5%.
Comments
This article was originally published in Physical Review C, available at https://doi.org/10.1103/PhysRevC.99.015204
This work is distributed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).