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

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arxiv 2111.12125 v2 pith:IA4IBJX6 submitted 2021-11-23 hep-lat hep-phhep-th

Biagio Lucini , Ed Bennett , Jack Holligan , Deog Ki Hong , Ho Hsiao , Jong-Wan Lee , C.-J. David Lin , Michele Mesiti
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Maurizio Piai Davide Vadacchino
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classification hep-lathep-phhep-th
keywords compositenessgaugeantisymmetricdiracfundamentalmodelpartialresults
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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.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Meson spectroscopy in the $Sp(4)$ gauge theory with three antisymmetric fermions

    hep-lat 2024-12 conditional novelty 6.0 of 10

    Lattice simulations of Sp(4) with three antisymmetric Dirac fermions find QCD-like confinement and chiral symmetry breaking, and provide a first continuum-extrapolated meson spectrum.

  2. Updates on the density of states method in finite temperature symplectic gauge theories

    hep-lat 2024-11 conditional novelty 4.0 of 10

    LLR simulations of Sp(4) pure gauge theory at finite temperature show that the plaquette distribution at the deconfinement critical point has a plateau between the two peaks, and the thermodynamic extrapolations of th...

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