Opposite-sign Dilepton Asymmetry of Neutral B Decays: a Probe of New Physics from CPT or ΔB = ΔQ Violation

Details Opposite-sign Dilepton Asymmetry of Neutral B Decays: a Probe of New Physics from CPT or ΔB = ΔQ Violation Opposite-sign Dilepton Asymmetry of Neutral B Decays: a Probe of New Physics from CPT or ΔB = ΔQ Violation

1998-10-05

arxiv.org/abs/hep-ph/9810249v3

Phys.Lett. B450 (1999) 202-206

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages. Some changes. Phys. Lett. B (in printing)

Scientific paper

10.1016/S0370-2693(99)00127-6

We show that new physics, either from CPT violation in B^0-\bar{B}^0 mixing or from \Delta B = -\Delta Q transitions, may lead to an opposite-sign dilepton asymmetry of neutral B-meson decays. Both effects have the same time-dependent behavior and therefore are in general indistinguishable from each other. We also clarify some ambiguity associated with the constraint on CPT violation in semileptonic decays of incoherent B^0 and \bar{B}^0 mesons.

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