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Spectroscopy of (4) lattice gauge theory with = 3 antisymmetric fermions

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

Proceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022), Volume: 430

Swansea University Authors: Ed Bennett Orcid Logo, Biagio Lucini Orcid Logo, Maurizio Piai Orcid Logo

DOI (Published version): 10.22323/1.430.0211

Abstract

We perform numerical calculations of masses and decay constants of the lightest (flavoured) pseu- doscalar, vector and axialvector mesons in the (4) lattice gauge theory with three Dirac fermions in the antisymmetric representation. The corresponding continuum theory plays an important role in certa...

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Published in: Proceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022)
Published: Trieste, Italy Sissa Medialab 2023
Online Access: http://dx.doi.org/10.22323/1.430.0211
URI: https://cronfa.swan.ac.uk/Record/cronfa61943
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Abstract: We perform numerical calculations of masses and decay constants of the lightest (flavoured) pseu- doscalar, vector and axialvector mesons in the (4) lattice gauge theory with three Dirac fermions in the antisymmetric representation. The corresponding continuum theory plays an important role in certain ultra-violet complete realisations of composite Higgs, partial top compositeness, and composite dark matter models. In addition, we measure the masses of other flavoured mesons in spin-0 and 1 channels, as well as the first excited state of the vector mesons. Using the gradient flow to set the scale, we carry out the continuum extrapolation and show preliminary results for the meson spectrum of the theory.
College: Faculty of Science and Engineering