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Physical Review D

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$W γ γ$ production with leptonic decays at next-to-leading order QCD

G. Bozzi¹, F. Campanario², M. Rauch², and D. Zeppenfeld²

¹Dipartimento di Fisica, Università di Milano and INFN, Sezione di Milano Via Celoria 16, I-20133 Milano, Italy
²Institut für Theoretische Physik, Universität Karlsruhe, KIT, 76128 Karlsruhe, Germany

Phys. Rev. D 83, 114035 – Published 20 June, 2011

DOI: https://doi.org/10.1103/PhysRevD.83.114035

Abstract

The computation of the $O (α_{s})$ QCD corrections to the cross sections for $W^{\pm} γ γ$ production in hadronic collisions is presented. We consider the case of real photons in the final state, but include full leptonic decays of the $W$ . Numerical results for the LHC and the Tevatron are obtained through a parton level Monte Carlo based on the structure of the VBFNLO program, allowing an easy implementation of general cuts and distributions. We show the dependence on scale variations of the integrated cross sections and provide evidence of the fact that next-to-leading-order QCD corrections strongly modify the leading order predictions for observables at the LHC both in magnitude and in shape.

Article Text

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