Lepton Polarization Asymmetry in $B\to K^{(*)} l^+l^-$

Details Lepton Polarization Asymmetry in $B\to K^{(*)} l^+l^-$ Lepton Polarization Asymmetry in $B\to K^{(*)} l^+l^-$

1996-08-28

arxiv.org/abs/hep-ph/9608466v1

Phys.Rev. D54 (1996) 5636-5641

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages (Latex), 4 figures

Scientific paper

10.1103/PhysRevD.54.5636

We investigate the longitudinal lepton polarization asymmetry in the exclusive processes $B\to K l^+l^-$ and $B\to K^* l^+l^-$. We include both short and long-distance contributions to the asymmetry in our discussions. We find that average values of the polarization asymmetries of the muon and tau for $B\to K^{(*)}\mu^+\mu^-$ and $B\to K^{(*)}\tau^+\tau^-$ are $-0.8\ (-0.7)$ and $-0.2\ (-0.5)$, respectively.

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