Drell-Yan process at forward rapidity at the LHC

Abstract

We analyze the Drell-Yan lepton pair production at forward rapidity at the Large Hadron Collider. Using the dipole framework for the computation of the cross section we find a significant suppression in comparison to the collinear factorization formula due to saturation effects in the dipole cross section. We develop a twist expansion in powers of Q_s^2/M^2 where Q_s is the saturation scale and M the invariant mass of the produced lepton pair. For the nominal LHC energy the leading twist description is sufficient down to masses of 6 GeV. Below that value the higher twist terms give a significant contribution.

13 pages, 7 figures

References in corpus (4)

• Parton distributions for the LHC
• Implications of CTEQ global analysis for collider observables
• Saturation QCD predictions with heavy quarks at HERA
• High Energy Resummation of Drell-Yan Processes

Cited by in corpus (5)

• Predictions for Drell-Yan ϕ* and Q_T observables at the LHC
• Twist expansion of Drell-Yan structure functions in color dipole approach
• Dilepton production in proton-proton and Pb+Pb collisions at sqrt(s_NN)=2.76 TeV
• Drell-Yan Lepton-Pair-Jet Correlation in pA collisions
• Ultraviolet Complete Quantum Field Theory and Gauge Invariance