Two-Loop Virtual Corrections to Drell-Yan Production at order alpha_s alpha^3

Details Two-Loop Virtual Corrections to Drell-Yan Production at order alpha_s alpha^3 Two-Loop Virtual Corrections to Drell-Yan Production at order alpha_s alpha^3

2011-07-24

arxiv.org/abs/1107.4798v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 3 figures

Scientific paper

The Drell-Yan mechanism for the production of lepton pairs is one of the most basic processes for physics studies at hadron colliders. It is therefore important to have accurate theoretical predictions. In this work we compute the two-loop virtual mixed QCD x QED corrections to Drell-Yan production. We evaluate the Feynman diagrams by decomposing the amplitudes into a set of known master integrals and their coefficients, which allows us to derive an analytical result. We also perform a detailed study of the ultraviolet and infrared structure of the two-loop amplitude and the corresponding poles in epsilon.

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