Published June 2010
| Version v1
Journal article
Measurement of the beam asymmetry Σ in the forward direction for γ-vectorp→pπ0
Creators
- Sparks, N.1
- Crede, V.1
- Wilson, A.1
- Anisovich, A. V.2, 3
- Bayadilov, D.2, 3
- Nikonov, V. A.2, 3
- Sarantsev, A. V.2, 3
- Bacelar, J. C. S.4
- Castelijns, R.4
- Loehner, H.4
- Shende, S.4
- Bantes, R.3
- Bartholomy, O.3
- Beck, R.3
- Funke, Chr.3
- Gutz, E.3
- Hoffmeister, P.3
- Junkersfeld, J.3
- Kalinowsky, H.3
- Klempt, E.3
- and others
- CBELSA/TAPS Collaboration
- 1. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)
- 2. Petersburg Nuclear Physics Institute, RU-188350 Gatchina (Russian Federation)
- 3. Helmholtz-Institut fuer Strahlen- und Kernphysik, Universitaet Bonn, D-53115 Bonn (Germany)
- 4. KVI, 9747 AA Groningen (Netherlands)
Description
Photoproduction of neutral pions has been studied with the CBELSA/TAPS detector for photon energies between 0.92 and 1.68 GeV at the electron stretcher accelerator ELSA. The beam asymmetry Σ has been extracted for 115 deg. <θc.m.<155 deg. of the π0 meson and for θc.m.<60 deg. The new beam-asymmetry data cover the very forward region, which extend previously published data for the same reaction by our collaboration and improve the world database for photon energies above 1.5 GeV. The angular dependence of Σ shows overall good agreement with the SAID parametrization.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevC.81.065210;
- arXiv
- arXiv:1003.1346v3;
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 81
- Journal Issue
- 6
- Journal Page Range
- p. 065210-065210.10
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41117383
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ACCELERATORS; ASYMMETRY; BEAMS; ELECTRONS; GEV RANGE; GEV RANGE 01-10; PHOTONS; PHOTOPRODUCTION; PIONS NEUTRAL; VECTORS
- Descriptors DEC
- BASIC INTERACTIONS; BOSONS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; INTERACTIONS; LEPTONS; MASSLESS PARTICLES; MESONS; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PIONS; PSEUDOSCALAR MESONS; TENSORS
Optional Information
- Notes
- (c) 2010 The American Physical Society
- Collaborations
- CBELSA/TAPS Collaboration