Opposite-sign Dilepton Asymmetry of Neutral B Decays: a Probe of New Physics from CPT or B = Q Violation
Abstract
We show that new physics, either from CPT violation in B0-B0 mixing or from B = - 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 B0 and B0 mesons.
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