P03model and helicity structure of photoproduction couplings
- 1 November 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 12 (9), 2700-2708
- https://doi.org/10.1103/physrevd.12.2700
Abstract
Neglecting the term within the possible algebraic structure in a 35-dimensional representation for the magnetic-dipole operator is shown to result in the model for photodecays of nucleon resonances. We then expand the reduced -changing amplitudes into partial waves and impose a simple constraint on the and parts of the 35. This leads to several more relations among helicity amplitudes for these decays. Using vector dominance and the partial-wave parameters from resonance decays into the lowest-mass meson 35-plet, pseudoscalar decays in particular, we get photodecay couplings which are in good agreement with partial-wave analysis.
Keywords
This publication has 22 references indexed in Scilit:
- Quarks: Currents and constituentsPhysical Review D, 1974
- Quarks and the helicity structure of photoproduction amplitudesPhysics Letters B, 1974
- Current quarks, constituent quarks, and symmetries of resonance decaysNuclear Physics B, 1973
- SU(3) × S(3) of currents, SUW(6) of constituents, and electromagnetic decaysPhysics Letters B, 1973
- Chiral SU(2)SU(2) Mixing and the Quark Model of HadronsPhysical Review Letters, 1973
- Resonance Decays Involving Two Partial WavesPhysical Review D, 1972
- Quark graphs and angular distributions in positive-parity meson decaysNuclear Physics B, 1971
- Decay rates of meson resonances in a quark modelNuclear Physics B, 1969
- Intrinsic Orbital Angular Momentum andWSpinPhysical Review B, 1967
- Spin Independence,Spin, Parity, andSymmetryPhysical Review B, 1966