Abstract
In this paper we present a Next-to-Next-to Leading Order (NNLO) calculation of the production of a Higgs boson in association with a massive vector boson. We include the decays of the unstable Higgs and vector bosons, resulting in a fully flexible parton-level Monte Carlo implementation. We also include all \( \mathcal{O}\left({\alpha}_s^2\right) \) contributions that occur in production for these processes: those mediated by the exchange of a single off-shell vector boson in the s-channel, and those which arise from the coupling of the Higgs boson to a closed loop of fermions. We study final states of interest for Run II phenomenology, namely \( H\to b\overline{b} \), γγ and WW ∗. The treatment of the \( H\to b\overline{b} \) decay includes QCD corrections at NLO. We use the recently developed N -jettiness regularization procedure, and study its viability in the presence of a large final-state phase space by studying pp → V (H → WW ∗) → leptons.
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Campbell, J.M., Ellis, R.K. & Williams, C. Associated production of a Higgs boson at NNLO. J. High Energ. Phys. 2016, 179 (2016). https://doi.org/10.1007/JHEP06(2016)179
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DOI: https://doi.org/10.1007/JHEP06(2016)179