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

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

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Abstract

We perform numerical calculations of masses and decay constants of the lightest (flavoured) pseudoscalar, vector and axial vector mesons in the Sp(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.

Original languageEnglish
Article number214
JournalProceedings of Science
Volume430
StatePublished - 6 Apr 2023
Event39th International Symposium on Lattice Field Theory, LATTICE 2022 - Bonn, Germany
Duration: 8 Aug 202213 Aug 2022

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