The 38th International Symposium on Lattice Field Theory

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

29 Jul 2021, 21:45

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.

Presentation materials

196 R4Sm Benjamin Jaedon Choi

benji.lat2021.pdf