Influence of the $B^{*}$ resonance on $\bar{B} \to π e {\bar{ν}}_{e}$

Publisher Website

1 January 1990

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 41 (1) , 151-154
https://doi.org/10.1103/physrevd.41.151

Abstract

In the chiral limit and as

m_{b} \to \infty

, the decay

\bar{B} \to π^{+} e {\bar{ν}}_{e}

would be dominated near zero pionic recoil by the effects of the

B^{*}

resonance. We examine the influence of this mechanism on the

\bar{B} \to Xe {\bar{ν}}_{e}

electron spectrum in the region near the end point which is important for the determination of the Kobayashi-Maskawa matrix element

V_{ub}

.

Keywords

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