Lattice 2024

Predicting the spectrum and decay constants of positive-parity heavy-strange mesons using domain-wall fermions

30 Jul 2024, 11:15

20m

Talk Hadronic and Nuclear Spectrum and Interactions Hadronic and nuclear spectrum and interactions

Speaker

Forrest Guyton (University of Arizona)

Description

We determine the energies and decay constants of the lowest-lying positive-parity bottom-strange and charm-strange mesons using lattice QCD. The calculations are performed with domain-wall up, down, and strange quarks and with an anisotropic clover action for the heavy quarks, on seven different RBC/UKQCD ensembles with pion masses ranging from a near physical $m_{\pi }\approx 139MeV$ up to $m_{\pi }\approx 431MeV$. On all of these ensembles, our preliminary results for the ground-state energies of the $B_{s0}^{\ast }$, $B_{s1}$, $D_{s0}^{\ast }$, and $D_{s1}$ are below the $BK$, $B^{\ast }K$, $DK$, and $D^{\ast }K$ thresholds, respectively.

Presentation materials

Lattice2024-21.pdf