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RESEARCH PRODUCT
T-odd and CP-odd triple momentum correlations in the exclusive semi-leptonic bottom meson decay
J. G. KörnerKarl SchilcherY.l. Wusubject
QuarkPhysicsNuclear and High Energy PhysicsParticle physicsMesonUnitaritymedia_common.quotation_subjectHigh Energy Physics::PhenomenologyStrong interactionObservableAsymmetryNuclear physicssymbols.namesakesymbolsHigh Energy Physics::ExperimentHamiltonian (quantum mechanics)media_commondescription
Abstract We study T-odd triple momentum correlations in exclusive semi-leptonic (S l ) bottom meson decays B → D ∗ (→ D π)+ l +ν l . We define asymmetry ratios that measure these T-odd triple momentum correlation effects. We provide a careful discussion of possible unitarity contributions to the asymmetry ratios. The conclusion is that strong interaction unitarity contributions are small or, in the case of one particular T-odd observable, absent. CP-violating contributions to the asymmetry ratios would have to come from new non-standard sources as there are no standard model contributions. Possible new CP-violating contributions are parametrized in terms of an effective four-fermion hamiltonian. Their effect on the T-odd asymmetry ratios are computed in terms of specific quark models describing S l exclusive heavy meson decays.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-05-01 | Physics Letters B |