Unified theory of. gamma. N. --> pi. N,. pi pi. N, and. pi. N. --> pi. N,. pi pi. N reactions

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.38.1792· OSTI ID:6827174

Afnan, I R

We present a set of coupled integral equations for the reactions ..gamma..N..--> pi..N,..pi pi..N and ..pi..N..--> pi..N,..pi pi..N, that satisfy two- and three-body unitarity. These equations are based on a chiral bag Lagrangian in which the coupling to the photon is introduced at the quark level by demanding U(1) local gauge invariance. The final equations include the contribution of both meson exchange and isobar currents.

• Research Organization: School of Physical Sciences, The Flinders University of South Australia, Bedford Park, South Australia 5042, Australia
• OSTI ID: 6827174
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 38:4; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

645202 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BASIC INTERACTIONS
BOSONS
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
EQUATIONS
EXCHANGE INTERACTIONS
FUNCTIONS
GAUGE INVARIANCE
HADRON-HADRON INTERACTIONS
HADRONS
INTEGRAL EQUATIONS
INTERACTIONS
INVARIANCE PRINCIPLES
LAGRANGIAN FUNCTION
LIE GROUPS
MANY-BODY PROBLEM
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTOPRODUCTION
PION-NUCLEON INTERACTIONS
PIONS
POSTULATED PARTICLES
PROPAGATOR
PSEUDOSCALAR MESONS
QUARKS
SCATTERING
SYMMETRY GROUPS
THREE-BODY PROBLEM
TWO-BODY PROBLEM
U GROUPS
U-1 GROUPS
UNITARITY