Published November 2009 | Version v1
Journal article Metadata-only

Photoproduction of π0η on protons and the Δ(1700)D33-resonance

Creators

  • 1. Lebedev Physical Institute, Moscow (Russian Federation)
  • 2. Johannes Gutenberg-Universitaet Mainz, Institut fuer Kernphysik, Mainz (Germany)
  • 3. Tomsk Polytechnic University, Tomsk (Russian Federation)
  • 4. University of Glasgow, Department of Physics and Astronomy, Glasgow (United Kingdom)
  • 5. Kent State University, Kent, OH (United States)
  • 6. Universitaet Bonn, Helmholtz-Institut fuer Strahlen- und Kernphysik, Bonn (Germany)
  • 7. Petersburg Nuclear Physics Institute, Gatchina (Russian Federation)
  • 8. Universitaet Giessen, II. Physikalisches Institut, Giessen (Germany)
  • 9. Universitaet Basel, Institut fuer Physik, Basel (Switzerland)
  • 10. INFN Sezione di Pavia, Pavia (Italy)
  • 11. University of Edinburgh, School of Physics, Edinburgh (United Kingdom)
  • 12. The George Washington University, Center for Nuclear Studies, Washington, DC (United States)
  • 13. University of California at Los Angeles, Los Angeles, CA (United States)
  • 14. Mount Allison University, Sackville, NB (Canada)
  • 15. Rudjer Boskovic Institute, Zagreb (Croatia)
  • 16. Institute for Nuclear Research, Moscow (Russian Federation)
  • 17. The Catholic University of America, Washington, DC (United States)

Description

Total and differential cross-sections for the reaction γp→π0ηp have been measured with the Crystal Ball/TAPS detector using the tagged photon facility at the MAMI C accelerator in Mainz. In the energy range Eγ=0.95-1.4 GeV the reaction is dominated by the excitation and sequential decay of the Δ(1700)D33-resonance. Angular distributions measured with high statistics allow us to determine the ratio of hadronic decay widths ΓηΔ/ΓπS11 and the ratio of the helicity amplitudes A3/2/A1/2 for this resonance. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epja/i2009-10868-4

Additional details

Identifiers

DOI
10.1140/epja/i2009-10868-4;

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
42
Journal Issue
2
Journal Page Range
p. 141-149
ISSN
1434-6001

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
41007381
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANGULAR DISTRIBUTION; DECAY AMPLITUDES; DELTA-1700 BARYONS; DIFFERENTIAL CROSS SECTIONS; ETA MESONS; EXPERIMENTAL DATA; GEV RANGE 01-10; HADRONIC PARTICLE DECAY; HELICITY; INTEGRAL CROSS SECTIONS; MEV RANGE 100-1000; PARTICLE WIDTHS; PHOTON-PROTON INTERACTIONS; PHOTOPRODUCTION; PIONS NEUTRAL; PROTONS; SPIN ORIENTATION
Descriptors DEC
AMPLITUDES; BARYONS; BASIC INTERACTIONS; BOSONS; CROSS SECTIONS; DATA; DECAY; DELTA BARYONS; DISTRIBUTION; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; INFORMATION; INTERACTIONS; MESONS; MEV RANGE; N*BARYONS; NUCLEONS; NUMERICAL DATA; ORIENTATION; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; PHOTON-BARYON INTERACTIONS; PHOTON-HADRON INTERACTIONS; PHOTON-NUCLEON INTERACTIONS; PIONS; PSEUDOSCALAR MESONS; TRANSITION AMPLITUDES

Optional Information

Collaborations
Crystal Ball at MAMI, TAPS, and A2 Collaborations