Spectrum of mesons in quenched Sp (2N) gauge theories

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

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

We report the findings of our extensive study of the spectra of flavored mesons in lattice gauge theories with symplectic gauge group and fermion matter content treated in the quenched approximation. 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 parameter space. Our results have potential phenomenological applications ranging from composite Higgs models, to top (partial) compositeness, to dark matter models with composite, strong-coupling dynamical 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.

原文English
文章編號094517
期刊Physical Review D
109
發行號9
DOIs
出版狀態Published - 1 5月 2024

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