• Open Access

NNLO QCD corrections to associated WH production and Hbb¯ decay

Fabrizio Caola, Gionata Luisoni, Kirill Melnikov, and Raoul Röntsch
Phys. Rev. D 97, 074022 – Published 23 April 2018

Abstract

We present a computation of the next-to-next-to-leading-order (NNLO) QCD corrections to the production of a Higgs boson in association with a W boson at the LHC and the subsequent decay of the Higgs boson into a bb¯ pair, treating the b quarks as massless. We consider various kinematic distributions and find significant corrections to observables that resolve the Higgs decay products. We also find that a cut on the transverse momentum of the W boson, important for experimental analyses, may have a significant impact on kinematic distributions and radiative corrections. We show that some of these effects can be adequately described by simulating QCD radiation in Higgs boson decays to b quarks using parton showers. We also describe contributions to Higgs decay to a bb¯ pair that first appear at NNLO and that were not considered in previous fully differential computations. The calculation of NNLO QCD corrections to production and decay sub-processes is carried out within the nested soft-collinear subtraction scheme presented by some of us earlier this year. We demonstrate that this subtraction scheme performs very well, allowing a computation of the coefficient of the second-order QCD corrections at the level of a few per mill.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
8 More
  • Received 24 December 2017

DOI:https://doi.org/10.1103/PhysRevD.97.074022

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Fabrizio Caola1,*, Gionata Luisoni2,†, Kirill Melnikov3,‡, and Raoul Röntsch3,§

  • 1Institute for Particle Physics Phenomenology, Durham University, Durham DH1 3LE, United Kingdom
  • 2Max Planck Institute for Physics, Föhringer Ring 6, 80805 München, Germany
  • 3Institute for Theoretical Particle Physics, KIT, Karlsruhe D-76128, Germany

  • *fabrizio.caola@durham.ac.uk
  • luisonig@mpp.mpg.de
  • kirill.melnikov@kit.edu
  • §raoul.roentsch@kit.edu

Article Text

Click to Expand

References

Click to Expand
Issue

Vol. 97, Iss. 7 — 1 April 2018

Reuse & Permissions
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Reuse & Permissions

It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 4.0 International license. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

×

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×