Speaker
Dr
Takashi Kaneko
(KEK)
Description
We report our preliminary results for the $B \to D^{(*)}\ell\nu$
semileptonic form factors at zero and nonzero recoils in 2+1 flavor
QCD. The Moebius domain-wall action is employed for light, charm
and bottom quarks at lattice cutoffs $a^{-1}$ = 2.5 and 3.6 GeV.
We take bottom quark masses up to 2.4 times the physical charm mass
to control discretization effects. We test the heavy quark scaling
of the form factors for the extrapolation to the physical bottom mass.
Primary author
Dr
Takashi Kaneko
(KEK)
Co-authors
Dr
Brian Colquhoun
(KEK)
Dr
Hidenori Fukaya
(Osaka University)
Dr
Shoji Hashimoto
(KEK)
Yasumichi Aoki
(KEK)