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

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

Proceedings of The XVIth Quark Confinement and the Hadron Spectrum Conference — PoS(QCHSC24), Volume: 483, Start page: 180

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

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DOI (Published version): 10.22323/1.483.0180

Abstract

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 (4) gauge theory with two and three Dirac flavours of hyperquarks (beyond the Standard Model fermions coupled to the (4)...

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Published in: Proceedings of The XVIth Quark Confinement and the Hadron Spectrum Conference — PoS(QCHSC24)
ISSN: 1824-8039
Published: Trieste, Italy Sissa Medialab 2025
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URI: https://cronfa.swan.ac.uk/Record/cronfa71162
Abstract: 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 (4) gauge theory with two and three Dirac flavours of hyperquarks (beyond the Standard Model fermions coupled to the (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 (4)/(4). Results shown here are primarily from a completed quenched computation, while those from our ongoing work with dynamical simulations are also discussed.
College: Faculty of Science and Engineering
Funders: EB, BL, MP, FZ acknowledge the STFC DTP Grant No. ST/X000648/1. EB and BL are grateful for the support of their work from the EPSRC ExCALIBUR programme ExaTEPP (project EP/ X017168/1). EB also acknowledges the STFC Research Software Engineering Fellowship EP/V052489/1. The work of NF is supported by the STFC Doctoral Training Grant No. ST/X508834/1. DKH acknowledges support from Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF2017R1D1A1B06033701), as well as the NRF grant MSIT 2021R1A4A5031460 from the Korean government. JWL acknowledges support from Institute for Basic Science through the project code IBS-R018-D1. HH and CJDL acknowledges support from NSTC Taiwan, through grant number 112-2112-M-A49-021-MY3. CJDL also receives support from two other NSTC grants, 112-2639-M-002-006-ASP and 113-2119-M-007-013. DV acknowledges support from STFC through Consolidated Grant No. ST/X000680/1. BL and MP are also funded by STFC through Consolidated Grant No. ST/T000813/1, as well as by the European Research Council (ERC) through Horizon 2020 research and innovation program of the European Union, through Grant Agreement No. 813942.
Start Page: 180

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