Spin Dependent Drell Yan and Double Prompt Photon Production to NLO QCD
Sanghyeon Chang, Claudio Coriano, R. D. Field, L. E. Gordon
Abstract
We present the complete O(αs2) radiative corrections to the (non singlet) polarized Drell Yan cross section for the production of a lepton pair with a nonzero qT. The helicity of the incoming states is arbitrary. In the case of double photon, results for the longitudinal asymmetries and on the pT behavior of the cross section are also given (to O(αem2αs )) in the central rapidity region of the tagged photon.
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