Composite Higgs with Flavour Deconstruction

25 Sept 2024, 15:45
15m
Seminar room 4a

Seminar room 4a

Particle Phenomenology Parallel Wednesday Pheno 1 / Cosmo 3

Speaker

Marko Pesut (University of Zürich)

Description

In this talk, we present a flavour non-universal UV completion of the Standard Model aimed at addressing the Higgs hierarchy problem and the flavour puzzle. In the UV, a flavour non-universal gauge sector is spontaneously broken down​ by non-perturbative dynamics. The Higgs emerges as a light pseudo-Nambu-Goldstone boson of the broken symmetry, and its potential is radiatively generated by explicit symmetry-breaking terms. We will provide a detailed description of the model and its appealing features in addressing the Higgs hierarchy problem and the flavour puzzle, in particular the positive impact of combining flavour non-universality with Higgs compositeness and a relatively close-by symmetry-breaking scale to the SM. We will also explore the model's rich phenomenology at the TeV scale and the related constraints from EWPOs, flavour observables and Higgs couplings modifications. We stress that our model is compatible with current experimental bounds and can provide TeV scale New Physics that simultaneously stabilizes the Higgs mass and addresses the flavour puzzle while evading the stringent flavour and Electroweak constraints.

Primary authors

Prof. Gino Isidori (University of Zurich) Dr Joe Davighi (CERN) Marko Pesut (University of Zürich) Sebastiano Covone (University of Zurich)

Presentation materials