QCD corrections to associated Higgs boson production with a W boson pair at the LHC

Abstract

The Higgs boson production in association with a pair of W-bosons at the Large Hadron Collider(LHC) can be used to probe the coupling between Higgs boson and vector gauge bosons and discover the signature of new physics. We describe the impact of the complete QCD NLO radiative corrections and the gluon-gluon fusion subprocesss to the cross section of this process at the LHC, and investigate the dependence of the leading order(LO) and the QCD corrected cross sections on the fctorization/renormalization energy scale and Higgs boson mass. We present the LO and QCD corrected distributions of the invariant mass of W-boson pair and the transverse momenta of final W and Higgs boson. We find that the QCD NLO corrections and the contribution from gluon-gluon fusion subprocess significantly modify the LO distributions, and the scale dependence of the QCD corrected cross section is badly underestimated by the LO results. Our numerical results show that the K-factor of the QCD correction varies from 1.48 to 1.64 when $m_H$ goes up from $100GeV$ to $160GeV$. We find also the QCD correction from \gghww subprocess at the LHC is significant, and should be considered in precise experiment.

25 pages, 15 figures, to appear in Phys. Rev. D

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• NLO QCD corrections to t tbar + jet production at hadron colliders
• Next-to-Leading order Higgs + 2 jet production via gluon fusion
• QCD corrections to tri-boson production
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• Multi-Higgs boson production in the Standard Model and beyond
• Next-to-leading order QCD corrections to W+W- production via vector-boson fusion
• QCD corrections to hadronic WWZ production with leptonic decays
• Searches for the Higgs Boson
• Global Electroweak Fits and the Higgs Boson Mass
• Standard Model Higgs Searches

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• Gluon fusion and $b\bar{b}$ corrections to $H{W}^{+}{W}^{-}/HZZ$ production in the POWHEG-BOX
• Dark matter pair associated with a $W$ boson production at the LHC in next-to-leading order QCD
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