Open AccessTransverse spin dependent Drell Yan in QCD to O({alpha}{sub s}{sup 2}) at large p{sub {Tau}}. 1: Virtual corrections and methods for the real emissions
Author(s) -
Sanghyeon Chang,
Claudio Corianò,
John K. Elwood
Publication year - 1997
Language(s) - English
Resource type - Reports
DOI - 10.2172/541934
Subject(s) - physics , parton , particle physics , drell–yan process , quantum chromodynamics , factorization , perturbative qcd , lepton , regularization (linguistics) , feynman graph , dimensional regularization , nuclear physics , mathematical physics , renormalization , algorithm , artificial intelligence , computer science , electron
The authors investigate the role of the transverse spin dependence in Drell Yan lepton pair production to NLO in QCD at parton level. In the analysis the authors deal with the large p{sub {Tau}} distributions. They give very compact expressions for the virtual O({alpha}{sub s}{sup 2}) corrections to the cross section and show that the singularities factorize. The study is performed in the {ovr MS} scheme in Dimensional Regularization, and with the t`Hooft-Veltman prescription for {gamma}{sub 5}. A discussion of the structure of the real emissions is included, and detailed methods for the study of these contributions are formulated