T-odd and CP-odd triple momentum correlations in the exclusive semi-leptonic bottom meson decay B→D*+l+νl
Description
We study T-odd triple momentum correlations in exclusive semi-leptonic (Sl) bottom meson decays B→D*(→Dπ)+l+νl. 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 Sl exclusive heavy meson decays. (orig.)
Additional details
Publishing Information
- Journal Title
- Physics Letters, (Section) B
- Journal Volume
- 242
- Journal Issue
- 1
- Series
- Phys. Lett., B.
- Journal Page Range
- 119-127
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 21069788
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANGULAR CORRELATION; ASYMMETRY; AXIAL-VECTOR CURRENTS; B MESONS; CONFIGURATION MIXING; CP INVARIANCE; DECAY AMPLITUDES; EXCLUSIVE INTERACTIONS; FERMI INTERACTIONS; FLAVOR MODEL; GRAND UNIFIED THEORY; HAMILTONIANS; HELICITY; HIGGS MODEL; INTERFERENCE; KOBAYASHI-MASKAWA MATRIX; P INVARIANCE; PARTICLE WIDTHS; QUANTUM FLAVORDYNAMICS; SEMILEPTONIC DECAY; SPIN ORIENTATION; STRONG INTERACTIONS; SYMMETRY BREAKING; T INVARIANCE; UNITARITY; VECTOR CURRENTS
- Descriptors DEC
- ALGEBRAIC CURRENTS; AMPLITUDES; BASIC INTERACTIONS; BEAUTY PARTICLES; BOSONS; COMPOSITE MODELS; CORRELATIONS; CURRENTS; DECAY; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; INTERACTIONS; INVARIANCE PRINCIPLES; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MATRICES; MESONS; ORIENTATION; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUANTUM OPERATORS; QUARK MODEL; TRANSITION AMPLITUDES; UNIFIED GAUGE MODELS; WEAK INTERACTIONS; WEAK PARTICLE DECAY