CP violation and strong phases from penguins in B±→VV decays
Creators
- 1. Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik
- 2. Ohio State Univ., Columbus, OH (United States). Dept. of Physics
- 3. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
Description
We calculate direct CP-violating observables in charged B → VV decays arising from the interference of amplitudes with different strong and CKM phases. The perturbative strong phases develop at order αs from absorptive parts of one-loop matrix elements of the next-to-leading logarithm corrected effective Hamiltonian. CPT constraints are maintained. Based on this model, we find that partial rate asymmetries between charge conjugate B± decays can be as high as 15-30% for certain channels with branching ratios in the 10-6 range. The small values of the coefficients of angular correlations, which we calculated previously to be of order 10-2, are not significantly degraded by the strong phases. The charge asymmetries of rates and angular distributions would provide unambiguous evidence for direct CP violation. (orig.)
Availability note (English)
MF available from INIS under the Report Number.
Files
Additional details
Publishing Information
- Imprint Pagination
- 26 p.
- ISSN
- 0418-9833
- Report number
- DESY--93-192
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 25045703
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANGULAR CORRELATION; ANGULAR DISTRIBUTION; ASYMMETRY; B MESONS; B MINUS MESONS; B PLUS MESONS; BRANCHING RATIO; CONFIGURATION MIXING; CORRECTIONS; CP INVARIANCE; CPT THEOREM; DECAY AMPLITUDES; FERMI INTERACTIONS; FEYNMAN DIAGRAM; FLAVOR MODEL; HAMILTONIANS; INTERACTION RANGE; INTERFERENCE; MATRIX ELEMENTS; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; SYMMETRY BREAKING; THEORETICAL DATA; WEAK HADRONIC DECAY
- Descriptors DEC
- AMPLITUDES; BASIC INTERACTIONS; BEAUTY PARTICLES; BOSONS; COMPOSITE MODELS; CORRELATIONS; DATA; DECAY; DIAGRAMS; DISTANCE; DISTRIBUTION; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; INFORMATION; INTERACTIONS; INVARIANCE PRINCIPLES; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MESONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE MODELS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUANTUM OPERATORS; QUARK MODEL; TRANSITION AMPLITUDES; WEAK INTERACTIONS; WEAK PARTICLE DECAY
Optional Information
- Contract/Grant/Project number
- Contract DOE/ER/01545-605; Foerderkennzeichen BMFT 056HH93P(5)
- Funding organization
- Bundesministerium fuer Forschung und Technologie, Bonn (Germany).
- Secondary number(s)
- HEP-PH--9402227.