Jul 26 – 30, 2021
US/Eastern timezone

Decay constants of $B_{(s)}$ and $D_{(s)}$ meson on MILC HISQ a12m220 ensemble using the OK action and sequential Bayesian method

Jul 29, 2021, 9:45 PM
15m
Oral presentation Standard Model Parameters Standard Model Parameters

Speaker

Mr Benjamin Jaedon Choi (Seoul National University)

Description

We present our current progress on the lattice calculation of decay constants for $B_{(s)}$, $D_{(s)}$ mesons using sequential Bayesian method and the Oktay-Kronfeld (OK) action for the charm and bottom quarks (valence quarks). Here, the masses of charm and bottom quark are determined non-perturbatively. For the light spectator quarks (up, down and strange), we use HISQ action. Lattice calculation is done on MILC HISQ a12m220 ensemble ($N_f=2+1+1$ flavors). $f_{B_s} / f_B$ and $f_{D_s} / f_D$, the flavor $SU(3)$ symmetry breaking ratio, are presented. They are independent of the renormalization constants for the axial current.

Primary authors

Mr Benjamin Jaedon Choi (Seoul National University) Mr Seungyeob Jwa (Seoul National University) Sungwoo Park (Los Alamos National Laboratory) Sunkyu Lee (Seoul National University) Weonjong Lee (Seoul National University) Yong-Chull Jang (Brookhaven National Laboratory)

Presentation materials