Drell-Yan process at forward rapidity at the LHC
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology2010Vol. 82(9)
Citations Over TimeTop 10% of 2010 papers
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.