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arXiv · 1008.2652

Drell-Yan process at forward rapidity at the LHC

Krzysztof Golec-Biernat·Emilia Lewandowska·Anna M. Stasto
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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.

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Krzysztof Golec-Biernat, Emilia Lewandowska, Anna M. Stasto. 2010-08-16. Drell-Yan process at forward rapidity at the LHC. https://doi.org/10.1103/physrevd.82.094010

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