Drell-Yan process at forward rapidity at the LHC

被引:22
作者
Golec-Biernat, Krzysztof [1 ,2 ]
Lewandowska, Emilia [2 ]
Stasto, Anna M. [2 ,3 ,4 ]
机构
[1] Univ Rzeszow, Inst Phys, Rzeszow, Poland
[2] Polish Acad Sci, Inst Nucl Phys, Krakow, Poland
[3] Penn State Univ, Dept Phys, University Pk, PA 16802 USA
[4] Brookhaven Natl Lab, RIKEN Ctr, Upton, NY 11973 USA
来源
PHYSICAL REVIEW D | 2010年 / 82卷 / 09期
关键词
FACTORIZATION; SOFT;
D O I
10.1103/PhysRevD.82.094010
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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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页数:11
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