Jul 26 – 30, 2021
US/Eastern timezone

Mesonic spectrum of Sp(4) gauge theory with Nf=3 dynamical antisymmetry fermions

Jul 30, 2021, 5:45 AM
Oral presentation Particle physics beyond the Standard Model Particle physics beyond the Standard Model


Ho Hsiao (NYCU)


We perform dynamical lattice studies for mesonic spectroscopy of Sp(4) gauge theory coupled to three flavours of Dirac fermions in the antisymmetric representation. In addition, mesons composed of valence fundamental Dirac fermions are considered in the partially-quenched setting. We employ the Wuppertal and APE smearing methods to improve the signals of effective masses. By combining the smearing techniques and a variational method, we are able to extract the first excited state of the rho meson. In the lattice calculation, we set the scale using the gradient flow and study continuum extrapolations and finite size effects. Besides, we present our exploratory investigations of chimera baryons.

Primary author

Ho Hsiao (NYCU)


Jong-Wan Lee (Pusan National University) Prof. Maurizio Piai (Swansea University) Prof. C.-J. David Lin Ed Bennett (Swansea University) Deog Ki Hong (Pusan National University (KR)) Biagio Lucini (Swansea University) Michele Mesiti (University of Pisa) Davide Vadacchino (Trinity College Dublin) Jack Holligan

Presentation materials