Polarized single-pion photoproduction: Test for various quark models

Journal Article · Sun Aug 01 04:00:00 EDT 1982 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.26.565· OSTI ID:5021787

Nath, P; Gupta, M; Prasher, A K

The multipole analysis of resonance photocouplings of Babcock and Rosner is extended to the case of single-pion photoproduction by polarized photons. The various polarized cross sections dsigma/sub parallel/(n..pi../sup +/), dsigma/sub parallel/(p..pi../sup 0/), dsigma/sub perpendicular/(n..pi../sup +/), and dsigma/sub perpendicular/(p..pi../sup 0/) are well reproduced. The present analysis is exploited for discriminating different models which predict photocouplings of nonstrange baryon resonances. Data is found to strongly favor a negative relative sign for P- and F-wave pionic decays in accordance with the findings of Babcock and Rosner.

• Research Organization: Department of Physics, Panjab University, Chandigarh-160014, India
• OSTI ID: 5021787
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 26:3; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BARYON RESONANCES
BARYONS
BASIC INTERACTIONS
BEAMS
BOSONS
COMPOSITE MODELS
CROSS SECTIONS
DATA
DECAY
DISTRIBUTION
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
HELICITY
INFORMATION
INTERACTIONS
MATHEMATICAL MODELS
MESONS
MULTIPOLES
NUMERICAL DATA
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PHOTOPRODUCTION
PIONS
POLARIZED BEAMS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
RESONANCE PARTICLES
THEORETICAL DATA