Leptonic decays of $B_{(s)}$ and $D_{(s)}$ using the OK action

18 Jun 2019, 18:10
20m
Foyer

Foyer

Poster Weak Decays and Matrix Elements Poster

Speaker

Mr Benjamin Jaedon Choi (Seoul National University)

Description

We present recent progress in the lattice calculation of leptonic decay constants for $B_{(s)}$ and $D_{(s)}$ mesons using the Oktay-Kronfeld (OK) action for the charm and bottom quarks. We use MILC HISQ ensembles and the HISQ action for the light spectator quark. Results for spectrum of $B_{(s)}$, $D_{(s)}$, $B^\ast_{(s)}$, $D^\ast_{(s)}$ mesons with the nonperturbatively tuned heavy quark masses will be presented. We will also present results for the SU(3) flavor breaking ratios $f_{B_s}/f_B$ and $f_{D_s}/f_D$ that are independent of the renormalization constant that is being calculated.

Authors

Dr Jon Andrew Bailey (Seoul National University) Tanmoy Bhattacharya (T-2) Mr Benjamin Jaedon Choi (Seoul National University) Rajan Gupta (Los Alamos National Lab) Yong-Chull Jang (Brookhaven National Laboratory) Mr Seung-Yeob Jwa (Seoul National University) Mr Sunkyu Lee (Seoul National University) Weonjong Lee (Seoul National University) Dr Jaehoon Leem (Korea Institute of Advanced Science) Sungwoo Park (Los Alamos National Laboratory)

Presentation materials