Transition form factors in. pi. sup 0 ,. eta. , and. eta. prime couplings to. gamma. gamma. sup *
Journal Article
·
· Physical Review, D (Particles Fields); (United States)
- Departament Fisica i Enginyeria Nuclear, Universitat Politecnica de Catalunya, 08800 Vilanova, Barcelona (Spain)
- Theory Division, European Organization For Nuclear Research (CERN), CH-1211, Geneva-23 (Switzerland)
- Grup de Fisica Teorica, Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona (Spain)
- Departamento de Fisica Teorica y del Cosmos, Universidad de Granada, 18071 Granada (Spain)
Recent measurements of the transition form factors for the {ital P}{gamma}{gamma}{sup *} vertices, with {ital P}={pi}{sup 0}, {eta}, and {eta}{prime}, are compared with different models. These include vector-meson dominance, constituent-quark loops, the QCD-inspired interpolation by Brodsky-Lepage, and chiral perturbation theory. General agreement is observed and differences--due to SU(3) breaking--are stressed and discussed.
- OSTI ID:
- 7235298
- Journal Information:
- Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 45:3; ISSN PRVDA; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Fri Feb 28 23:00:00 EST 1997
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OSTI ID:467542
Analysis of 2. gamma. and. pi. sup +. pi. sup minus. gamma. decays of. eta. and. eta. prime using chiral anomalies
Journal Article
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Mon Oct 01 00:00:00 EDT 1990
· Physical Review, D (Particles Fields); (USA)
·
OSTI ID:6228237
{eta} Prime {yields}{pi}{sup 0}{gamma}{gamma} and {eta} Prime {yields}{eta}{gamma}{gamma}: A primer analysis
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Tue Oct 23 00:00:00 EDT 2012
· AIP Conference Proceedings
·
OSTI ID:22075678
Related Subjects
662120* -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662230 -- Quantum Chromodynamics-- (1992-)
662390 -- Electromagnetic Processes & Properties-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHIRAL SYMMETRY
COUPLING
ELECTROMAGNETIC FORM FACTORS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FORM FACTORS
HADRONS
LIE GROUPS
MATHEMATICAL MODELS
MESONS
PARTICLE MODELS
PARTICLE PROPERTIES
PERTURBATION THEORY
PIONS
PIONS NEUTRAL
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SU GROUPS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
VECTOR DOMINANCE MODEL
VECTOR MESONS
Conservation Laws
Currents & Their Properties-- (1992-)
662230 -- Quantum Chromodynamics-- (1992-)
662390 -- Electromagnetic Processes & Properties-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHIRAL SYMMETRY
COUPLING
ELECTROMAGNETIC FORM FACTORS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FORM FACTORS
HADRONS
LIE GROUPS
MATHEMATICAL MODELS
MESONS
PARTICLE MODELS
PARTICLE PROPERTIES
PERTURBATION THEORY
PIONS
PIONS NEUTRAL
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SU GROUPS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
VECTOR DOMINANCE MODEL
VECTOR MESONS