Sensitivity of P-odd polarization observables in. gamma. p r arrow N. pi. to axial anomaly and gluon corrections to. Delta. -isobar couplings
Conference
·
· AIP Conference Proceedings (American Institute of Physics) Conference Proceedings; (USA)
OSTI ID:5286679
- Kharkov Institute of Physics and Technology, Ukrainian SSR. Academy of Sciences, 310108 Kharkov, USSR (UA)
The P-odd polarization observables in {gamma}{ital p} {r arrow} {ital N}{pi} have been calculated in the region of the {Delta}-isobar. The P-odd parts of the {gamma}{ital p} {r arrow} {ital N}{pi} amplitudes are determined by the diagrams with the axial anomaly and the couplings of the P-odd transitions {ital p} {r arrow} {ital N}{pi}{sup +}, {gamma}{ital p} {r arrow} {Delta}{sup +}, and {Delta}{sup +} {r arrow} {ital N}{pi}. The gluon exchanges in the P-odd part of the Hamiltonian of weak quark interactions are shown to enhance the couplings of the {gamma}{ital p} {r arrow} {Delta}{sup +} and {Delta}{sup +} {r arrow} {ital N}{pi} transitions. The contributions of the axial anomaly are rather small. The relative values of the P-odd observables are approximately equal to 10{sup {minus}6}.
- OSTI ID:
- 5286679
- Report Number(s):
- CONF-880983--
- Conference Information:
- Journal Name: AIP Conference Proceedings (American Institute of Physics) Conference Proceedings; (USA) Journal Volume: 187:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645201* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- General & Scattering Theory
645300 -- High Energy Physics-- Particle Invariance Principles & Symmetries
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BARYONS
BASIC INTERACTIONS
BOSON-EXCHANGE MODELS
BOSONS
DATA
DIAGRAMS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FEYNMAN DIAGRAM
FUNCTIONS
GLUONS
HADRONS
HAMILTONIAN FUNCTION
INFORMATION
INTERACTIONS
INVARIANCE PRINCIPLES
ISOBAR MODEL
MATHEMATICAL MODELS
MATRIX ELEMENTS
MESONS
NUCLEONS
NUMERICAL DATA
P INVARIANCE
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PERIPHERAL MODELS
PHOTON-BARYON INTERACTIONS
PHOTON-HADRON INTERACTIONS
PHOTON-NUCLEON INTERACTIONS
PHOTON-PROTON INTERACTIONS
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
SCATTERING AMPLITUDES
THEORETICAL DATA
WEAK INTERACTIONS
645300 -- High Energy Physics-- Particle Invariance Principles & Symmetries
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BARYONS
BASIC INTERACTIONS
BOSON-EXCHANGE MODELS
BOSONS
DATA
DIAGRAMS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FEYNMAN DIAGRAM
FUNCTIONS
GLUONS
HADRONS
HAMILTONIAN FUNCTION
INFORMATION
INTERACTIONS
INVARIANCE PRINCIPLES
ISOBAR MODEL
MATHEMATICAL MODELS
MATRIX ELEMENTS
MESONS
NUCLEONS
NUMERICAL DATA
P INVARIANCE
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PERIPHERAL MODELS
PHOTON-BARYON INTERACTIONS
PHOTON-HADRON INTERACTIONS
PHOTON-NUCLEON INTERACTIONS
PHOTON-PROTON INTERACTIONS
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
SCATTERING AMPLITUDES
THEORETICAL DATA
WEAK INTERACTIONS