V_{ub}, V_{cb} and Decay Constants in Effective Field Theory of Heavy Quarks

Abstract

A new framework of heavy quark effective field theory (HQEFT) is studied and compared with the usual heavy quark effective theory (HQET). $|V_{ub}|$, $|V_{cb}|$ and heavy meson decay constants are extracted in the new framework. HQEFT can yield reasonable results for both exclusive and inclusive decays.

arXiv comment8 pages, uses sprocl.sty, to be published in the proceedings of ICFP2001