Vector Mesonic and Unitarity Effects in Low-Energy Photoproduction

Sep, 1976
31 pages
Published in:
  • Phys.Rev.D 17 (1978) 174
Report number:
  • COO-881-567

Citations per year

197819892000201120220123456
Abstract: (APS)
Vector-meson-exchange effects are investigated for photoproduction in the Δ region. An improved analysis using a current-algebra model with unitarity corrections and the most recent multipole analysis indicates the necessity of vector-meson contributions. The required vector-meson coupling constants are consistent with quark-model values.
  • PHOTON NUCLEON: INTERACTION
  • INTERACTION: PHOTON NUCLEON
  • DELTA(1236)
  • MODEL: PHOTOPRODUCTION
  • PHOTOPRODUCTION: MODEL
  • EXCHANGE: VECTOR MESON
  • CURRENT ALGEBRA: EFFECTIVE LAGRANGIANS
  • UNITARITY: CORRECTION
  • PARTIAL-WAVE ANALYSIS: MULTIPOLE
  • VECTOR MESON: COUPLING CONSTANT