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Purely Leptonic B decays at High Luminosity e+e- B factories

A. G. Akeroyd, S. Recksiegel

hep-pharXiv:hep-ph/0209252

Abstract

High Luminosity upgrades of the KEK-B collider are being discussed. We consider the role of the purely leptonic decays B -> l nu and B0 -> l+l- in motivating such an upgrade. These decays are very sensitive to R parity violating extensions of the MSSM, and we show that future runs of the KEK-B factory can be competitive with high energy colliders for probing such models.

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