Your browser has javascript turned off or blocked. This will lead to some parts of our website to not work properly or at all. Turn on javascript for best performance.

The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Photo of Rikkert Frederix

Rikkert Frederix

Senior lecturer

Photo of Rikkert Frederix

Accurate predictions for charged Higgs production : Closing the mH± ∼mt window

Author

  • Céline Degrande
  • Rikkert Frederix
  • Valentin Hirschi
  • Maria Ubiali
  • Marius Wiesemann
  • Marco Zaro

Summary, in English

We present predictions for the total cross section for the production of a charged Higgs boson in the intermediate-mass range (mH±
∼mt) at the LHC, focusing on a type-II two-Higgs-doublet model. Results are obtained at next-to-leading order (NLO) accuracy in QCD perturbation theory, by studying the full process pp→H±Wbb¯ in the complex-(top)-mass scheme with massive bottom quarks. Compared to lowest-order predictions, NLO corrections have a sizeable impact: they increase the cross section by roughly 50% and reduce uncertainties due to scale variations by more than a factor of two. Our computation reliably interpolates between the low- and high-mass regime. Our results provide the first NLO prediction for charged Higgs production in the intermediate-mass range and therefore allow to have NLO accurate predictions in the full mH±
range. The extension of our results to different realisations of the two-Higgs-doublet model or to the supersymmetric case is also discussed.

Publishing year

2017-09-10

Language

English

Pages

87-92

Publication/Series

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Volume

772

Document type

Journal article

Publisher

Elsevier

Topic

  • Subatomic Physics

Keywords

  • Charged Higgs
  • Complex mass scheme
  • Resonant diagrams
  • Top quark
  • Two-Higgs-doublet models

Status

Published

ISBN/ISSN/Other

  • ISSN: 0370-2693