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Sp(4) gauge theories and beyond the standard model physics

Biagio Lucini Orcid Logo, Ed Bennett Orcid Logo, Jack Holligan, Deog Ki Hong, Ho Hsiao, Jong-Wan Lee, C.-J. David Lin, Michele Mesiti Orcid Logo, Maurizio Piai Orcid Logo, Davide Vadacchino

EPJ Web of Conferences, Volume: 258, Start page: 08003

Swansea University Authors: Biagio Lucini Orcid Logo, Ed Bennett Orcid Logo, Jack Holligan, Michele Mesiti Orcid Logo, Maurizio Piai Orcid Logo

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Abstract

We review numerical results for models with gauge group Sp(2N), discussing the glueball spectrum in the large-N limit, the quenched meson spectrum of Sp(4) with Dirac fermions in the fundamental and in the antisymmetric representation and the Sp(4) gauge model with two dynamical Dirac flavours. We a...

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Published in: EPJ Web of Conferences
ISSN: 2100-014X
Published: EDP Sciences 2022
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa60024
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Abstract: We review numerical results for models with gauge group Sp(2N), discussing the glueball spectrum in the large-N limit, the quenched meson spectrum of Sp(4) with Dirac fermions in the fundamental and in the antisymmetric representation and the Sp(4) gauge model with two dynamical Dirac flavours. We also present preliminary results for the meson spectrum in the Sp(4) gauge theory with two fundamental and three antisymmetric Dirac flavours. The main motivation of our programme is to test whether this latter model is viable as a realisation of Higgs compositeness via the pseudo Nambu Goldstone mechanism and at the same time can provide partial top compositeness. In this respect, we report and briefly discuss preliminary results for the mass of the composite baryon made with two fundamental and one antisymmetric fermion (chimera baryon), whose physical properties are highly constrained if partial top compositeness is at work. Our investigation shows that a fully non-perturbative study of Higgs compositeness and partial top compositeness in Sp(4) is within reach with our current lattice methodology.
College: Faculty of Science and Engineering
Start Page: 08003