28 July 2024 to 3 August 2024
Europe/London timezone

The mass of the $\sigma$ in a chiral ensemble in $SU(2)$ with two fundamental flavours

2 Aug 2024, 14:15
20m
Talk Particle Physics Beyond the Standard Model Particle physics beyond the Standard Model

Speaker

Laurence Sebastian Bowes (University of Plymouth)

Description

$SU(2)$ with two fundamental flavours is a minimal model for the Composite Higgs sector proposed to tackle the hierarchy and naturalness problems associated with the Standard Model Higgs boson. We present an update on lattice results for the spectrum of $SU(2)$ with two fundamental flavours with the exponential clover Wilson fermion action. This includes the final non-perturbative tuning of $c_{SW}$ for all $\beta \geq 2.15$, and for the first time in this setup the mass of the $\sigma$ towards the chiral limit, just below the threshold of decay into two pions.

Primary authors

Prof. Antonio Rago (QTC & IMADA, University of Southern Denmark) Fernando Romero-Lopez (MIT / Uni Bern) Laurence Sebastian Bowes (University of Plymouth) Patrick Fritzsch (Trinity College Dublin) Sofie Martins (University of Southern Denmark) Vincent Drach (University of Plymouth)

Presentation materials