A new method of determining $|V_{ub}|$ by the processes $\bar{B} \to ρl \barν$ and $\bar{B} \to K^* l \lbar$

Details A new method of determining $|V_{ub}|$ by the processes $\bar{B} \to ρl \barν$ and $\bar{B} \to K^* l \lbar$ A new method of determining $|V_{ub}|$ by the processes $\bar{B} \to ρl \barν$ and $\bar{B} \to K^* l \lbar$

1995-07-11

arxiv.org/abs/hep-ph/9507283v1

Phys.Rev.Lett. 75 (1995) 2807-2810

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex file 9 page

Scientific paper

10.1103/PhysRevLett.75.2807

The differential decay width of the process $\bar{B} \rightarrow \rho l
\bar{\nu}$ is related to that of the process $\bar{B} \rightarrow K^* l \lbar$
by using $SU(3)$-flavor symmetry and the heavy quark symmetry. The ratio of the
Kobayashi-Maskawa matrix elements is obtained in the zero recoil limit of
$\rho$ and $K^*$, allowing a determination of $|V_{ub}|$.

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