22–26 juil. 2019
Ecole Nationale Supérieure de Chimie
Fuseau horaire Europe/Paris

Measuring the Weizsäcker-Williams distribution of linearly polarized gluons at an electron-ion collider through dijet azimuthal asymmetries

23 juil. 2019, 12:30
15m
Amphi Chaudron (Ecole Nationale Supérieure de Chimie)

Amphi Chaudron

Ecole Nationale Supérieure de Chimie

Oral presentation Physics Parallel session B

Orateur

Vladimir Skokov (North Carolina State University)

Description

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 talk, I will discuss the feasibility of measurement of these TMDs through dijet production in DIS on a nucleus at an electron-ion collider using a Monte Carlo generator to sample quark-antiquark dijet configurations based on leading-order parton level cross sections. The WW gluon distributions are obtained as a solution of the nonlinear small-x QCD evolution equations. The quark-antiquark dijet configurations are then fragmented to hadrons using PYTHIA, and final-state jets are subsequently reconstructed. I will report on background studies and on the effect of kinematic cuts introduced to remove beam jet remnants. The estimates on required luminosity to measure the distribution of linearly polarized gluons with a statistical accuracy of 5% will be provided.

Auteur principal

Vladimir Skokov (North Carolina State University)

Co-auteurs

Dr Adrian Dumitru Thomas Ullrich

Documents de présentation