The singlet scalar state in a chiral ensemble in $SU(2)$ with two fundamental flavours

• DOI: 10.48550/arxiv.2502.07163
• Publication Date: 2025-02-10
• Authors: Laurence Sebastia...; Vincent Drach; Patrick Fritzsch; Sofie Martins; Antonio Rago; Fernando Romero-L...
• Keywords: High Energy Physics - Lattice; High Energy Physics - Lattice (hep-lat); FOS: Physical sciences

Composite Higgs models are a class of Beyond the Standard Model (BSM) proposed to address hierarchy and naturalness problems associated with (SM) Higgs. A new QCD-like strongly interacting sector based on $SU(2)$ two fundamental flavours can be used build composite model which is not yet ruled out by experiment. The role singlet scalar resonance will affect phenomenology at LHC. In this project our goal understand properties state in isolation as first step understanding models. We present here lattice results for mass $\sigma$ using exponential clover Wilson fermions.