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Progress on the spectroscopy of an Sp(4) gauge theory coupled to matter in multiple representations

Fabian Zierler, Ho Hsiao Orcid Logo, Biagio Lucini Orcid Logo, Maurizio Piai Orcid Logo, Ed Bennett Orcid Logo, C.-J. David Lin Orcid Logo, Jong-Wan Lee Orcid Logo, Deog Ki Hong Orcid Logo, Davide Vadacchino Orcid Logo, Niccolo Forzano

Swansea University Authors: Fabian Zierler, Biagio Lucini Orcid Logo, Maurizio Piai Orcid Logo, Ed Bennett Orcid Logo, Niccolo Forzano

Abstract

We report progress on our lattice calculations for the mass spectra of low-lying composite states in the Sp(4) gauge theory coupled to two and three flavors of Dirac fermions transforming in the fundamental and the two-index antisymmetric representations, respectively. This theory provides an ultrav...

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Published: 2024
URI: https://cronfa.swan.ac.uk/Record/cronfa68473
Abstract: We report progress on our lattice calculations for the mass spectra of low-lying composite states in the Sp(4) gauge theory coupled to two and three flavors of Dirac fermions transforming in the fundamental and the two-index antisymmetric representations, respectively. This theory provides an ultraviolet completion to the composite Higgs model with Goldstone modes in the SU(4)/Sp(4) coset and with partial compositeness for generating the top-quark mass. We measure the meson and chimera baryon masses. These masses are crucial for constructing the composite Higgs model. In particular, the chimera baryon masses are important inputs for implementing top partial compositeness. We employ Wilson fermions and the Wilson plaquette action in our simulations. Techniques such as APE and Wuppertal smearing, as well as the procedure of generalised eigenvalue problem, are implemented in our analysis.
College: Faculty of Science and Engineering