2-11 October 2008
San Carlos, Sonora, México
America/Hermosillo timezone
- bamr@nucleares.unam.mx
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Contribution
San Carlos, Sonora, México
-
Room 3: Perla
Finite width effects in decay constants of vector and axial-vector mesons
Description
We calculate decay constants of vector and axial-vector mesons from decays $\tau^-\to V^-\nu_\tau$ and $\tau^-\to A^-\nu_\tau$, respectively, considering the effects of the anstability of vector and axial-vector mesons, and the case of strange axial-mesons the effect of $K_{1A}-K_{1B}$ mixing. Moreover, we calculate the impact in some branching ratios of $B$ decays.