Drell-Yan process at forward rapidity at the LHC

Krzysztof Golec-Biernat; Emilia Lewandowska; Anna M. Staśto

doi:10.1103/PhysRevD.82.094010

Drell-Yan process at forward rapidity at the LHC

Krzysztof Golec-Biernat, Emilia Lewandowska, Anna M. Staśto

Physics

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

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 Qs2/M2 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.

Original language	English (US)
Article number	094010
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	82
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.82.094010
State	Published - Nov 9 2010

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.82.094010

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AB - 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 Qs2/M2 where Qs 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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Drell-Yan process at forward rapidity at the LHC

Abstract

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