$B\to K^{\ast }\gamma$ decay on APE

Abstract

We present results for the radiative decay $B\to K^{\ast }\gamma$, obtained by using the Clover action at $\beta =6.0$ on APE. The compatibility between the scaling laws predicted by the Heavy Quark Effective Theory (HQET) and pole dominance is discussed. The final result depends crucially on the assumed $q^2$-dependence of the form factors.

Comments: 3 pages, talk given at the XII International Symposium on Lattice Field Theory, Sept. 27 - Oct. 1, 1994, Bielefeld. This is a c-shell archive (one Latex file + one PostScript figure)