Associated Higgs-W-Boson Production at Hadron Colliders: A Fully Exclusive QCD Calculation at NNLO

Giancarlo Ferrera,Francesco Tramontano,Massimiliano Grazzini

doi:10.1103/physrevlett.107.152003

Abstract

We consider QCD radiative corrections to standard model Higgs-boson production in association with a W boson in hadron collisions. We present a fully exclusive calculation up to next-to-next-to-leading order (NNLO) in QCD perturbation theory. To perform this NNLO computation, we use a recently proposed version of the subtraction formalism. Our calculation includes finite-width effects, the leptonic decay of the W boson with its spin correlations, and the decay of the Higgs boson into a bb pair. We present selected numerical results at the Tevatron and the LHC.

Highlights

We consider QCD radiative corrections to standard model Higgs-boson production in association with a W boson in hadron collisions
If the LHC will confirm the Tevatron exclusion, the attention will move to the low mass region, where the Higgs search is more difficult
Using the classical result of Ref. [4], the computation of the next-to-nextto-leading order (NNLO) inclusive cross section has been completed in Ref. [5]

Summary

Introduction

We consider QCD radiative corrections to standard model Higgs-boson production in association with a W boson in hadron collisions. Associated Higgs-W-Boson production at hadron colliders: a fully exclusive QCD calculation at NNLO. Associated WH production at hadron colliders: a fully exclusive QCD calculation at NNLO Giancarlo Ferrera(a), Massimiliano Grazzini(b)∗ and Francesco Tramontano(c) (a) Dipartimento di Fisica e Astronomia, Universita di Firenze and INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Florence, Italy (b) Institut fur Theoretische Physik, Universitat Zurich, CH-8057 Zurich, Switzerland (c) Theory Group, Physics Department, CERN, CH-1211 Geneva 23, Switzerland

Results

Conclusion