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

W. Y. Wang, Y. L. Wu, Y. A. Yan

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 dec…