Strong isospin breaking in Sp(4) gauge theory

Abstract

A hidden strongly-interacting sector is a possible candidate for dark matter. One scenario consistent with astrophysical constraints is a QCD-like theory with gauge group Sp(4) and two fundamental non-degenerate fermions. We report exploratory investigations of the light spectrum and decay constants for this theory using lattice calculations.

Comments: 7 pages, 3 figures, submitted to Lattice2021 proceedings and abridged version submitted to LHCP2021 proceedings