arXiv:hep-lat/9810041·v1·High Energy Physics — Lattice
B -> pi l nu at three lattice spacings
S.M. Ryan🇺🇸 · A.X. El-Khadra🇺🇸 · S. Hashimoto🇺🇸 · A.S. Kronfeld🇺🇸 · P.B. Mackenzie🇺🇸 · J.N. Simone🇺🇸
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.
Comments: LATTICE98(heavyqk), LaTeX, 3 pages, 4 postscript figures, uses espcrc2.sty