English

Higgs-Boson Decays: Updates

High Energy Physics - Phenomenology 2026-02-18 v4 High Energy Physics - Experiment

Abstract

In this contribution, new developments for the Standard Model Higgs-boson decays will be summarized. This addresses extensions of the grids used by {\tt Hdecay} to implement finite NLO mass effects for HggH\to gg as well as explicit numbers for the branching fraction for the strange-Yukawa induced part of HssˉH\to s\bar s together with the related uncertainties. In addition, first results of the strong and weak Dalitz decays of the Higgs-boson decays Hssˉ+g/γH\to s\bar s + g/\gamma are presented. The Dalitz decays define the separation between the Yukawa-induced part and the continuum, that is not induced by the strange-Yukawa coupling, and thus pave the way towards a solid determination of the strange-Yukawa coupling at future e+ee^+e^- colliders, but will also be relevant for solid bounds on the strange-Yukawa coupling at the LHC.

Keywords

Cite

@article{arxiv.2510.24658,
  title  = {Higgs-Boson Decays: Updates},
  author = {Emanuele Bagnaschi and Lisa Biermann and Michael Spira},
  journal= {arXiv preprint arXiv:2510.24658},
  year   = {2026}
}

Comments

13 pages, 3 figures, contribution to YR5 of the LHCHWG, extension of discussion, typos corrected

R2 v1 2026-07-01T07:10:00.520Z