Jun 14 – 16, 2023
AlbaNova Main Building
Europe/Stockholm timezone

Vector-like quarks and vacuum misalignment in composite Higgs models

Jun 14, 2023, 10:00 AM
15m
Oskar Klein Auditorium FR4 (AlbaNova Main Building)

Oskar Klein Auditorium FR4

AlbaNova Main Building

Speaker in ELPA session Sektionen för elementarpartikel och astropartikelfysik Sektionen för elementarpartikel och astropartikelfysik

Speaker

Avik Banerjee (Chalmers University of Technology)

Description

Two major ingredients of a composite Higgs model are vacuum misalignment and partial compositeness. The former is essential to trigger the electroweak symmetry breaking, while the latter can explain the mass hierarchy of the quarks. The partial compositeness mechansim employes a mixing between the SM quarks and vector-like quarks, arising from a new confining sector, via four-Fermi operators. In this talk I will show the necessity of these four-Fermi interactions to misalign the vacuum of the strong sector leading to electroweak symmetry breaking and connect our observations with recent results from lattice gauge theory calculations. I will also discuss the prospect for searching vector-like quarks via non-standard decay channels at the LHC.

Primary authors

Avik Banerjee (Chalmers University of Technology) Gabriele Ferretti

Presentation materials