Exponentiation of the Drell-Yan cross section near partonic threshold in the DIS and (M)over-bar(S)over-bar schemes

被引：0
|
作者：
Eynck, TO
Laenen, E
Magnea, L
机构：
[1] NIKHEF Theory Grp, NL-1098 SJ Amsterdam, Netherlands
[2] Univ Utrecht, Inst Theoret Phys, NL-3584 CE Utrecht, Netherlands
[3] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy
[4] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2003年 / 06期
关键词：
renormalization group; QCD; deep inelastic scattering; hadronic colliders;
D O I：
暂无
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
It has been observed that in the DIS scheme the refactorization of the Drell-Yan cross section leading to exponentiation of threshold logarithms can also be used to organize a class of constant terms, most of which arise from the ratio of the timelike Sudakov form factor to its spacelike counterpart. We extend this exponentiation to include all constant terms, and demonstrate how a similar organization may be achieved in the MS scheme. We study the relevance of these exponentiations in a two-loop analysis.
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页数：22
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