Published February 2, 1998
| Version v1
Journal article
The E2/M1 ratio in Δ photoproduction
- 1. Brookhaven National Lab., Upton, NY (United States). Physics Dept.
- 2. Department of Physics, University of South Carolina, Columbia, SC 29208 (United States)
- 3. Physics Department, Virginia Polytechnic Inst. and SU, Blacksburg, VA 24061 (United States)
Description
New high-precision measurements of p(γ-vector,π) and p(vector γ,γ) cross sections and beam asymmetries have been combined with other polarization ratios in a simultaneous analysis of both reactions. Compton scattering has provided two important new constraints on the photo-pion amplitude. The E2/M1 mixing ratio for the N→Δ transition extracted from this analysis is EMR=-3.0%±0.3(stat+sys)±0.2(mod el). (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Physics. A
- Journal Volume
- 629
- Journal Issue
- 1-2
- Journal Page Range
- p. 171-179.
- ISSN
- 0375-9474
- CODEN
- NUPABL
Conference
- Title
- Nonperturbative QCD hadron physics and electroweak nuclear processes.
- Acronym
- International conference on quark lepton nuclear physics (QULEN)
- Dates
- 20-23 May 1997.
- Place
- Osaka (Japan).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 29028791
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- COMPTON EFFECT; DELTA-1232 BARYONS; DIFFERENTIAL CROSS SECTIONS; E2-TRANSITIONS; MEV RANGE 100-1000; MIXING RATIO; M1-TRANSITIONS; PHOTON-PROTON INTERACTIONS; PHOTONS; PHOTOPRODUCTION; PIONS NEUTRAL; POLARIZATION-ASYMMETRY RATIO; POLARIZED BEAMS; PROTONS; RADIATIVE DECAY; SCATTERING AMPLITUDES; THEORETICAL DATA
- Descriptors DEC
- AMPLITUDES; BARYONS; BASIC INTERACTIONS; BEAMS; BOSONS; CATIONS; CHARGED PARTICLES; CROSS SECTIONS; DATA; DECAY; DELTA BARYONS; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; FERMIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; INTERACTIONS; IONS; MASSLESS PARTICLES; MESONS; MEV RANGE; MULTIPOLE TRANSITIONS; N*BARYONS; NUCLEONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PHOTON-BARYON INTERACTIONS; PHOTON-HADRON INTERACTIONS; PHOTON-NUCLEON INTERACTIONS; PIONS; PSEUDOSCALAR MESONS; SCATTERING
Optional Information
- Notes
- 33 refs.