Heavy Quark Physics and Lattice QCD
I review recent progress made on heavy quark physics on the lattice.
hep-lat↗
arXiv subjects
Norikazu Yamada
Publications and source records attributed to Norikazu Yamada.
B^0-\bar{B}^0 mixing from lattice QCD
We report on lattice calculations of the $B$ meson decay constant and the B-parameters using the NRQCD action for heavy quark. We performed a set of calculations at three lattice spacings in the quenched approximation in order to investigate the systematic uncertainty associated with the lattice discretization. Our results indicate that the systematic error is under good control for f_B and B_B. We also present preliminary results from our unquenched simulation.
hep-ph↗
Width difference of the B_s mesons from lattice QCD
We extend our previous studies to calculate the B meson B parameters B_B and B_S on the lattice, and present an update of the results for the B_s meson width difference. We perform an extensive study of systematic errors in the quenched calculation of the B-parameters, and find that the systematic errors are in good control using the NRQCD action for heavy quark. We also report our preliminary results from unquenched simulations.
hep-ph↗
NRQCD Results on Form Factors
We report results on $f_B$ and semi-leptonic $B$ decay form factors using NRQCD. We investigate $1/M$ scaling behavior of decay amplitudes. For $f_B$ Effect of higher order relativistic correction terms are also studied.
hep-lat↗