PoS - Proceedings of Science
Volume 453 - The 40th International Symposium on Lattice Field Theory (LATTICE2023) - Particle Physics Beyond the Standard Model
Chimera baryon spectrum in the Sp(4) completion of composite Higgs models
H. Hsiao*, E. Bennett, D.K. Hong, J.W. Lee, C.J.D. Lin, B. Lucini, M. Piai and D. Vadacchino
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Pre-published on: December 27, 2023
Published on: —
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.
DOI: https://doi.org/10.22323/1.453.0089
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