Precise predictions for the trilinear Higgs coupling in arbitrary models with anyH3

13 Jun 2024, 15:05
25m
Sala Azul

Sala Azul

Parallel Talk Higgs: theory and experiment Higgs: theory and experiment

Speaker

Johannes Braathen (DESY)

Description

The trilinear Higgs coupling offers a unique opportunity to probe the structure of the Higgs sector and study the nature of the electroweak phase transition. Recently, it was also shown that confronting the prediction for the trilinear Higgs coupling with the latest experimental bounds opens a powerful new way to probe possible effects of BSM Physics arising from extended Higgs sectors, going beyond existing experimental and theoretical constraints.

In this talk, I will present the new public tool anyH3, which provides predictions for the trilinear Higgs coupling to full one-loop order within arbitrary renormalisable theories. This program allows computing one-, two-, and three-point functions at one loop in an automated way, and furthermore offers a high level of flexibility in the choice of renormalisation conditions. I will review the main elements of the calculation and illustrate applications of anyH3. Finally, I will discuss ongoing extensions of the program.

Authors

Henning Bahl Johannes Braathen (DESY) Martin Gabelmann (DESY) Kateryna Radchenko Serdula (DESY) Georg Ralf Weiglein (Deutsches Elektronen-Synchrotron (DE))

Presentation materials