B -> pi l nu at three lattice spacings
arXiv:hep-lat/9810041 · doi:10.1016/S0920-5632(99)85083-X
Abstract
The increasing accuracy of experimental results for the exclusive, semileptonic decay B -> pi l nu requires a similarly accurate calculation of the hadronic matrix elements, to determine |Vub|. We present preliminary results for the form factors of the B to light meson decay mode. Using results from three lattices in the range 5.7 <= beta <= 6.1 we study the dependence on the lattice spacing.
LATTICE98(heavyqk), LaTeX, 3 pages, 4 postscript figures, uses espcrc2.sty