Drell-Yan process at forward rapidity at the LHC

作者：Golec Biernat Krzysztof^*; Lewandowska Emilia; Stasto Anna M

来源：Physical Review D - Particles, Fields, Gravitation and Cosmology, 2010, 82(9): 094010.

DOI：10.1103/PhysRevD.82.094010

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.

• 出版日期2010-11-9