Chimera baryon spectrum in the Sp(4) completion of composite Higgs models

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

doi:10.48550/arxiv.2401.05637

Chimera baryon spectrum in the Sp(4) completion of composite Higgs models

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

School of Engineering, Computing and Mathematics

Research output: Working paper › Preprint

20 Downloads (Pure)

Abstract

In strongly coupled gauge theories that serve as completions of composite Higgs models, the fermionic bound states formed by fermions (hyperquarks) transforming in different representations, called chimera baryons, could serve as top partners, by embedding of the Standard Model appropriately. We report our results on the spectrum of chimera baryons in the Sp(4) gauge theory with hyperquarks transforming in fundamental and two-index antisymmetric representations. For this study, we adopt the quenched approximation. We investigate the mass hierarchy between the lightest chimera baryons with different quantum numbers, as a function of the lattice parameters. Inspired by baryon chiral effective field theory, and the Akaike Information Criterion, we perform a first extrapolation to the continuum and massless-hyperquark limit.

Original language	Undefined/Unknown
DOIs	https://doi.org/10.48550/arxiv.2401.05637
Publication status	Published - 11 Jan 2024

Keywords

hep-lat

Access to Document

10.48550/arxiv.2401.05637

2401.05637Final published version, 721 KBLicence: CC BY-NC-ND

Cite this

@techreport{c17b7af7587f40778831ea51c0512025,

title = "Chimera baryon spectrum in the Sp(4) completion of composite Higgs models",

abstract = " In strongly coupled gauge theories that serve as completions of composite Higgs models, the fermionic bound states formed by fermions (hyperquarks) transforming in different representations, called chimera baryons, could serve as top partners, by embedding of the Standard Model appropriately. We report our results on the spectrum of chimera baryons in the Sp(4) gauge theory with hyperquarks transforming in fundamental and two-index antisymmetric representations. For this study, we adopt the quenched approximation. We investigate the mass hierarchy between the lightest chimera baryons with different quantum numbers, as a function of the lattice parameters. Inspired by baryon chiral effective field theory, and the Akaike Information Criterion, we perform a first extrapolation to the continuum and massless-hyperquark limit. ",

keywords = "hep-lat",

author = "Ho Hsiao and Ed Bennett and Hong, {Deog Ki} and Jong-Wan Lee and Lin, {C. -J. David} and Biagio Lucini and Maurizio Piai and Davide Vadacchino",

note = "8 pages, 2 figures, contribution to the proceedings of the 40th International Symposium on Lattice Field Theory (LATTICE2023), July 31st - August 4th, 2023, Fermi National Accelerator Laboratory, Batavia, Illinois, USA",

year = "2024",

month = jan,

day = "11",

doi = "10.48550/arxiv.2401.05637",

language = "Undefined/Unknown",

type = "WorkingPaper",

}

TY - UNPB

T1 - Chimera baryon spectrum in the Sp(4) completion of composite Higgs models

AU - Hsiao, Ho

AU - Bennett, Ed

AU - Hong, Deog Ki

AU - Lee, Jong-Wan

AU - Lin, C. -J. David

AU - Lucini, Biagio

AU - Piai, Maurizio

AU - Vadacchino, Davide

N1 - 8 pages, 2 figures, contribution to the proceedings of the 40th International Symposium on Lattice Field Theory (LATTICE2023), July 31st - August 4th, 2023, Fermi National Accelerator Laboratory, Batavia, Illinois, USA

PY - 2024/1/11

Y1 - 2024/1/11

N2 - In strongly coupled gauge theories that serve as completions of composite Higgs models, the fermionic bound states formed by fermions (hyperquarks) transforming in different representations, called chimera baryons, could serve as top partners, by embedding of the Standard Model appropriately. We report our results on the spectrum of chimera baryons in the Sp(4) gauge theory with hyperquarks transforming in fundamental and two-index antisymmetric representations. For this study, we adopt the quenched approximation. We investigate the mass hierarchy between the lightest chimera baryons with different quantum numbers, as a function of the lattice parameters. Inspired by baryon chiral effective field theory, and the Akaike Information Criterion, we perform a first extrapolation to the continuum and massless-hyperquark limit.

AB - In strongly coupled gauge theories that serve as completions of composite Higgs models, the fermionic bound states formed by fermions (hyperquarks) transforming in different representations, called chimera baryons, could serve as top partners, by embedding of the Standard Model appropriately. We report our results on the spectrum of chimera baryons in the Sp(4) gauge theory with hyperquarks transforming in fundamental and two-index antisymmetric representations. For this study, we adopt the quenched approximation. We investigate the mass hierarchy between the lightest chimera baryons with different quantum numbers, as a function of the lattice parameters. Inspired by baryon chiral effective field theory, and the Akaike Information Criterion, we perform a first extrapolation to the continuum and massless-hyperquark limit.

KW - hep-lat

U2 - 10.48550/arxiv.2401.05637

DO - 10.48550/arxiv.2401.05637

M3 - Preprint

BT - Chimera baryon spectrum in the Sp(4) completion of composite Higgs models

ER -