Published October 4, 1993 | Version v1
Journal article Metadata-only

A model for pion electro- and photo-production from threshold up to 1 GeV

Creators

  • 1. Instituto de Estructura de la Materia, Consejo Superior de Investigaciones Cientificas, Madrid (Spain)

Description

A model for electro- and photo-pion production is presented which is applicable at threshold and through the first and second resonance regions. It contains the Born terms, the vector mesons ρ and ω, the delta and the Roper resonances as well as the resonances S11, D13, S31 and D33. Extensive comparison to experimental data on photon-pion production is presented. The model is shown to describe data qualitatively up to 1 GeV and quantitatively up to 800 MeV. In the detailed comparison with experiment, better agreement is found with data on the proton target than with data on the neutron target. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Physics. A
Journal Volume
562
Journal Issue
4
Journal Page Range
p. 521-568.
ISSN
0375-9474
CODEN
NUPABL

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
25012399
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BORN APPROXIMATION; COUPLING CONSTANTS; DELTA-1232 BARYONS; DELTA-1620 BARYONS; DELTA-1700 BARYONS; DIFFERENTIAL CROSS SECTIONS; ELECTRON-NUCLEON INTERACTIONS; ELECTRONS; ELECTROPRODUCTION; ENERGY DEPENDENCE; EXCITATION FUNCTIONS; E0-TRANSITIONS; E1-TRANSITIONS; E2-TRANSITIONS; FEYNMAN DIAGRAM; HELICITY; INTEGRAL CROSS SECTIONS; LAGRANGIAN FIELD THEORY; MEV RANGE 100-1000; M1-TRANSITIONS; M2-TRANSITIONS; N-1440 BARYONS; N-1520 BARYONS; N-1535 BARYONS; NEUTRONS; OMEGA-783 MESONS; PHOTON-NEUTRON INTERACTIONS; PHOTON-PROTON INTERACTIONS; PHOTOPRODUCTION; PIONS; PIONS MINUS; PIONS NEUTRAL; PIONS PLUS; POLARIZATION-ASYMMETRY RATIO; POLARIZED BEAMS; POLARIZED PRODUCTS; POLARIZED TARGETS; PROPAGATOR; PROTONS; QUASI-ELASTIC SCATTERING; RHO-770 MESONS; SCATTERING AMPLITUDES; SPIN ORIENTATION; THEORETICAL DATA
Descriptors DEC
AMPLITUDES; BARYONS; BASIC INTERACTIONS; BEAMS; BOSONS; CATIONS; CHARGED PARTICLES; CROSS SECTIONS; DATA; DELTA BARYONS; DIAGRAMS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; FERMIONS; FIELD THEORIES; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; INTERACTIONS; IONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; LEPTONS; MESONS; MEV RANGE; MULTIPOLE TRANSITIONS; N BARYONS; N*BARYONS; NUCLEAR REACTIONS; NUCLEONS; NUMERICAL DATA; ORIENTATION; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; PHOTON-BARYON INTERACTIONS; PHOTON-HADRON INTERACTIONS; PHOTON-NUCLEON INTERACTIONS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; SCATTERING; TARGETS; VECTOR MESONS