Published February 22, 2010
| Version v1
Journal article
The pd→3Heηπ0 reaction at Tp=1450 MeV
Creators
- 1. Department of Physics and Astronomy, Uppsala University, Box 535, S-751 21 Uppsala (Sweden)
- 2. Department of Physics, Stockholm University, S-101 91 Stockholm (Sweden)
- 3. Physikalisches Institut der Universitaet Tuebingen, D-720 76 Tuebingen (Germany)
- 4. Soltan Institute of Nuclear Studies, PL-006 81 Warsaw (Poland)
- 5. Joint Institute for Nuclear Research, Dubna, RU-101 000 Moscow (Russian Federation)
- 6. Institut fuer Experimentalphysik, Universitaet Hamburg, D-227 61 Hamburg (Germany)
- 7. The Svedberg Laboratory, S-751 21 Uppsala (Sweden)
Description
The cross section for the pd→3Heηπ0 reaction has been measured at a beam energy of 1450 MeV using the WASA detector at the CELSIUS storage ring. The 3He was detected in coincidence with four photons from the decays of the two mesons. The data indicate that the production mechanism involves the formation of the Δ(1232) isobar. Although the beam energy does not allow the full peak of this resonance to be seen, the invariant mass distributions of all three pairs of final particles are well reproduced by a phase space Monte Carlo simulation weighted with the p-wave factor of the square of the π0 momentum in the 3Heπ0 system.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physletb.2010.01.042Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2010.01.042;
- arXiv
- arXiv:0911.1012v1;
- PII
- S0370-2693(10)00100-0;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 685
- Journal Issue
- 1
- Journal Page Range
- p. 33-37
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41090058
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BEAMS; CELSIUS STORAGE RING; CROSS SECTIONS; DELTA-1232 BARYONS; HELIUM 3; MASS DISTRIBUTION; MEV RANGE; MONTE CARLO METHOD; P WAVES; PARTICLE DECAY; PARTICLE IDENTIFICATION; PARTICLE PRODUCTION; PHASE SPACE; PHOTONS; PIONS NEUTRAL; RESONANCE
- Descriptors DEC
- BARYONS; BOSONS; CALCULATION METHODS; DECAY; DELTA BARYONS; DISTRIBUTION; ELEMENTARY PARTICLES; ENERGY RANGE; EVEN-ODD NUCLEI; FERMIONS; HADRONS; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; MASSLESS PARTICLES; MATHEMATICAL SPACE; MESONS; N*BARYONS; NUCLEI; PARTIAL WAVES; PIONS; PSEUDOSCALAR MESONS; SPACE; SPATIAL DISTRIBUTION; STABLE ISOTOPES; STORAGE RINGS
Optional Information
- Copyright
- Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.