Speaker
Benjamin Jaedon Choi
(Seoul National University)
Description
We present recent progress on the lattice calculation of semileptonic form factors for $B \to D^{\ast} \ell \nu$ decay using linear fit method. We use the Oktay-Kronfeld (OK) action for the charm and bottom valence quarks. We use results of 2pt correlator fit of $B$ and $D^{\ast}$ meson as input parameters to the data analysis on the 3pt correlation functions. Here, the masses of charm and bottom quark are tuned non-perturbatively. For the light spectator quarks (up, down and strange), we use HISQ action. Lattice calculation is done on a MILC HISQ ensemble ($a=0.12 \, \text{fm}$, $m_\pi = 220 \, \text{MeV}$, and $N_f=2+1+1$ flavors).
| Topical area | Standard Model Parameters |
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Primary authors
Benjamin Jaedon Choi
(Seoul National University)
JEONGHWAN PAK
(Seoul National Univercity)
Dr
Jaehoon Leem
(Samsung Electronics)
Rajan Gupta
(Los Alamos National Lab)
Seungyeob Jwa
(Seoul National University)
Sungwoo Park
(Los Alamos National Laboratory)
Sunkyu Lee
(Seoul National University)
Tanmoy Bhattacharya
(Los Alamos National Laboratory)
Weonjong Lee
(Seoul National University)
Yong-Chull Jang
(Columbia University)