28 July 2024 to 3 August 2024
Europe/London timezone

Flavour singlet mixing in Sp(4) gauge theory with fermions in multiple representations

30 Jul 2024, 11:35
20m
Talk Particle Physics Beyond the Standard Model Particle physics beyond the Standard Model

Speaker

Fabian Zierler (Swansea University)

Description

We study the pseudoscalar flavour-singlet mesons of $Sp(4)$ gauge theory with two distinct fermion representations. The model contains two fundamental and three anti-symmetric Dirac fermion. It is a minimal realization of a composite Higgs scenario with partial top compositeness. We determine both the masses and the mixing angles of the states associated with the global U(1) symmetries, one of which, is expected to be broken by the axial anomaly. These states complete the sector of pseudo-Nambu-Goldstone bosons present in this theory.

Primary authors

Biagio Lucini (Swansea University) C.-J David Lin (National Yang Ming Chiao Tung University) Davide Vadacchino (University of Plymouth) Deog Ki Hong (Pusan National University) Ed Bennett (Swansea University) Fabian Zierler (Swansea University) Ho Hsiao (National Yang Ming Chiao Tung University) Jong-Wan Lee (Institute for Basic Science (IBS)) Maurizio Piai (Swansea University) Niccolo Forzano (Swansea University)

Presentation materials