Transverse Spin Dependent Drell Yan in QCD to $O({\alpha }_s^2)$ at Large $p_T$ (I). Virtual Corrections and Methods for the Real Emissions

Sanghyeon Chang, Claudio Coriano, John K. Elwood

We investigate the role of the transverse spin dependence in Drell Yan lepton pair production to NLO in QCD at parton level. In our analysis we deal with the large $p_T$ distributi…