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Spectrum of mesons in quenched (2) gauge theories
,
Jack Holligan ,
Deog Ki Hong ,
Jong-Wan Lee ,
C.-J. David Lin ,
Biagio Lucini ,
Maurizio Piai ,
Davide Vadacchino
Physical Review D, Volume: 109, Issue: 9
Swansea University Authors:
Ed Bennett , Biagio Lucini , Maurizio Piai
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DOI (Published version): 10.1103/physrevd.109.094517
Abstract
We report the findings of our extensive study of the spectra of flavoured mesons in lattice gauge theories with symplectic gauge group and fermion matter content treated in the quenched approxi- mation. For the Sp(4), Sp(6), and Sp(8) gauge groups, the (Dirac) fermions transform in either the fundam...
| Published in: | Physical Review D |
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| ISSN: | 2470-0010 2470-0029 |
| Published: |
American Physical Society (APS)
2024
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa66071 |
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| Abstract: |
We report the findings of our extensive study of the spectra of flavoured mesons in lattice gauge theories with symplectic gauge group and fermion matter content treated in the quenched approxi- mation. For the Sp(4), Sp(6), and Sp(8) gauge groups, the (Dirac) fermions transform in either the fundamental, or the 2-index, antisymmetric or symmetric, representations. This study sets the stage for future precision calculations with dynamical fermions in the low mass region of lattice parame- ter space. Our results have potential phenomenological applications ranging from composite Higgs models, to top (partial) compositeness, to dark matter models with composite, strong-coupling dy- namical origin. Having adopted the Wilson flow as a scale-setting procedure, we apply Wilson chiral perturbation theory to extract the continuum and massless limits for the observables of interest. The resulting measurements are used to perform a simplified extrapolation to the large-N limit, hence drawing a preliminary connection with gauge theories with unitary groups. We conclude with a brief discussion of the Weinberg sum rules. |
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| College: |
Faculty of Science and Engineering |
| Funders: |
Funded by SCOAP3. |
| Issue: |
9 |