Progress on lattice study of the chimera baryon spectrum in Sp(4) gauge theory

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Hauptverfasser: Lin, C. -J. David, Bennett, Ed, Forzano, Niccolò, Hong, Deog Ki, Hsiao, Ho, Lee, Jong-Wan, Lucini, Biagio, Piai, Maurizio, Vadacchino, Davide, Zierler, Fabian
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Veröffentlicht: 2025
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author Lin, C. -J. David
Bennett, Ed
Forzano, Niccolò
Hong, Deog Ki
Hsiao, Ho
Lee, Jong-Wan
Lucini, Biagio
Piai, Maurizio
Vadacchino, Davide
Zierler, Fabian
author_facet Lin, C. -J. David
Bennett, Ed
Forzano, Niccolò
Hong, Deog Ki
Hsiao, Ho
Lee, Jong-Wan
Lucini, Biagio
Piai, Maurizio
Vadacchino, Davide
Zierler, Fabian
contents Investigation of composite Higgs models (CHMs) is of importance in contemporary particle physics. In this article, we present lattice computations of the chimera baryon masses in $Sp(4)$ gauge theory with two and three Dirac flavours of hyperquarks (beyond the Standard Model fermions coupled to the $Sp(4)$ gauge fields) in the fundamental and antisymmetric representations, respectively. The chimera baryons are crucial for generating the Standard Model fermion masses through the partial compositeness mechanism in this gauge theory that can serve as the ultraviolet completion of the CHM with pseudo-Nambu-Goldstone bosons in the coset $SU(4)/Sp(4)$. Results shown here are primarily from a completed quenched computation, while those from our ongoing work with dynamical simulations are also discussed.
format Preprint
id arxiv_https___arxiv_org_abs_2502_19767
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Progress on lattice study of the chimera baryon spectrum in Sp(4) gauge theory
Lin, C. -J. David
Bennett, Ed
Forzano, Niccolò
Hong, Deog Ki
Hsiao, Ho
Lee, Jong-Wan
Lucini, Biagio
Piai, Maurizio
Vadacchino, Davide
Zierler, Fabian
High Energy Physics - Lattice
High Energy Physics - Phenomenology
Investigation of composite Higgs models (CHMs) is of importance in contemporary particle physics. In this article, we present lattice computations of the chimera baryon masses in $Sp(4)$ gauge theory with two and three Dirac flavours of hyperquarks (beyond the Standard Model fermions coupled to the $Sp(4)$ gauge fields) in the fundamental and antisymmetric representations, respectively. The chimera baryons are crucial for generating the Standard Model fermion masses through the partial compositeness mechanism in this gauge theory that can serve as the ultraviolet completion of the CHM with pseudo-Nambu-Goldstone bosons in the coset $SU(4)/Sp(4)$. Results shown here are primarily from a completed quenched computation, while those from our ongoing work with dynamical simulations are also discussed.
title Progress on lattice study of the chimera baryon spectrum in Sp(4) gauge theory
topic High Energy Physics - Lattice
High Energy Physics - Phenomenology
url https://arxiv.org/abs/2502.19767