10-17 July 2019
Ghent
Europe/Brussels timezone

A Composite 2-Higgs Doublet Model

12 Jul 2019, 14:30
15m
Campus Ledeganck - Aud. 2 (Ghent)

Campus Ledeganck - Aud. 2

Ghent

Parallel talk Higgs Physics Higgs Physics

Speaker

Luigi Delle Rose (University of Florence)

Description

We consider a Composite Higgs Model with two isospin doublet Higgs fields arising as pseudo Nambu-Goldstone bosons from a SO(6)->SO(4)xSO(2) breaking. The main focus is to explicitly compute the properties of these Higgses in terms of the fundamental parameters of the composite sector such as masses, Yukawa and gauge couplings of the new spin-1 and spin-1/2 resonances. Concretely, we calculate the Higgs potential at one-loop level through the Coleman-Weinberg mechanism from the explicit breaking of the SO(6) global symmetry by the partial compositeness of fermions and gauge bosons. We derive then the phenomenological properties of the Higgs states and highlight the main signatures of this Composite 2-Higgs Doublet Model at the Large Hadron Collider, including modifications to the SM-like Higgs couplings as well as production and decay channels of heavier Higgs bosons.

Primary authors

Luigi Delle Rose (University of Florence) Stefania De Curtis (Universita e INFN, Firenze (IT)) Stefano Moretti (Science and Technology Facilities Council STFC (GB)) Kei Yagyu (Seikei University)

Presentation Materials