On the rare decays Z r arrow VV and Z r arrow VP
Journal Article
·
· Physical Review, D (Particles Fields); (USA)
OSTI ID:7097530
- Department of Physics, University of Stockholm, Vanadisvaegen 9, S-113 46, Stockholm (Sweden)
- Department of Physics, The Pennsylvania State University, University Park, PA (USA)
The rare decays {ital Z}{r arrow}{ital VV} and {ital Z}{r arrow}{ital VP} are calculated in the framework of the nonrelativistic quarkonium model. The branching ratios are found to be small, around 10{sup {minus}12} for charmonium and 10{sup {minus}10} for bottomonium. An interesting feature of our result is the fact that for {ital Z}{r arrow}{ital VV} the longitudinal polarizations of the vector mesons contribute, meaning that the amplitude is nonvanishing as {ital m}{sub {ital V}}{r arrow}0, in contrast with Yang's theorem for photons.
- OSTI ID:
- 7097530
- Journal Information:
- Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 41:11; ISSN PRVDA; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645203* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BOTTOMONIUM
BOUND STATE
BRANCHING RATIO
CHARMONIUM
COUPLING CONSTANTS
DECAY
ELEMENTARY PARTICLES
FIELD THEORIES
FUNCTIONS
HADRONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
MATHEMATICAL MODELS
MESONS
MOMENTUM TRANSFER
PARTIAL WAVES
PARTICLE MODELS
PARTICLE PRODUCTION
POLARIZATION
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKONIUM
S WAVES
STANDARD MODEL
UNIFIED GAUGE MODELS
VECTOR MESONS
WAVE FUNCTIONS
Z NEUTRAL BOSONS
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BOTTOMONIUM
BOUND STATE
BRANCHING RATIO
CHARMONIUM
COUPLING CONSTANTS
DECAY
ELEMENTARY PARTICLES
FIELD THEORIES
FUNCTIONS
HADRONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
MATHEMATICAL MODELS
MESONS
MOMENTUM TRANSFER
PARTIAL WAVES
PARTICLE MODELS
PARTICLE PRODUCTION
POLARIZATION
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKONIUM
S WAVES
STANDARD MODEL
UNIFIED GAUGE MODELS
VECTOR MESONS
WAVE FUNCTIONS
Z NEUTRAL BOSONS