Testing the chirality of b to u current with B^0 \to ρ^ - \ell^+ ν

Abstract

We study the effects of a modest V+A admixture strength in $b\tou$ current in the decay $B\to \rho l\nu$. We have shown that the decay rate, lepton forward-backward distribution asymmetry $A_{FB}$ and polarization ratio are sensitive to the admixture. Future experimental studies of the decay at BaBar and BELLE could clarify the chirality of $b\to u$ current and might reveal hints for New Physics with right-handed quark currents.

arXiv comment9 pages, 4 eps figures. To be published in PLB

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Cited by in corpus (1)

• Left-right mixing on leptonic and semileptonic $b\to u$ decays