SciPost Submission Page
Higgs-Boson Decays: Updates
by Emanuele Bagnaschi, Lisa Biermann, Michael Spira
Submission summary
| Authors (as registered SciPost users): | Emanuele Angelo Bagnaschi · Michael Spira |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2510.24658v2 (pdf) |
| Date submitted: | Jan. 10, 2026, 1:31 p.m. |
| Submitted by: | Emanuele Angelo Bagnaschi |
| Submitted to: | SciPost Physics Community Reports |
| for consideration in Collection: |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
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 $H\to gg$ as well as explicit numbers for the branching fraction for the strange-Yukawa induced part of $H\to s\bar s$ together with the related uncertainties. In addition, first results of the strong and weak Dalitz decays of the Higgs-boson decays $H\to s\bar s + g/γ$ 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 $e^+e^-$ colliders, but will also be relevant for solid bounds on the strange-Yukawa coupling at the LHC.
Author comments upon resubmission
List of changes
- We have extended the abstract to shortly summarize what has been done in this work. We left the introduction unchanged, since we believe that it is suitable.
- We have modified Section 2 to clarify the misleading description of details about the proper definition and implementation of the NLO quark-mass effects.
- We have rewritten Section 4.1 to make it different from the text in Ref. [79], while keeping the same content.