Measuring the Weizsaecker-Williams distribution of linearly polarized gluons at an EIC through dijet azimuthal asymmetries

Abstract

The production of a hard dijet with small transverse momentum imbalance in semi-inclusive DIS probes the conventional and linearly polarized Weizsaecker-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 non-linear 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}/A one can determine the distribution of linearly polarized gluons with a statistical accuracy of approximately 5%.

28 pages, 14 figures

References in corpus (14)

• PYTHIA 6.4 Physics and Manual
• An Introduction to PYTHIA 8.2
• Universality of Unintegrated Gluon Distributions at small x
• Relations between generalized and transverse momentum dependent parton distributions
• Non-linear QCD meets data: A global analysis of lepton-proton scattering with running coupling BK evolution
• The Construction of Gauge-Links in Arbitrary Hard Processes
• Direct Probes of Linearly Polarized Gluons inside Unpolarized Hadrons
• Transverse-momentum-dependent gluon distributions from JIMWLK evolution
• On the running coupling in the JIMWLK equation
• Probing Gluon Saturation through Dihadron Correlations at an Electron-Ion Collider
• Azimuthal asymmetries for quark pair production in pA collisions
• Anisotropy of the semi-classical gluon field of a large nucleus at high energy
• Gluon TMDs in quarkonium production
• How to measure the linear polarization of gluons in unpolarized proton using the heavy-quark pair leptoproduction

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