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Production of eta and 3pi mesons in the pd->3HeX reaction at 1360 and 1450 MeV
- Source :
- Eur.Phys.J.A45:11-21,2010
- Publication Year :
- 2010
-
Abstract
- The cross sections of the pd -> 3He eta, pd -> 3He pi0 pi0 pi0 and pd -> 3He pi+ pi- pi0 reactions have been measured at beam kinetic energies T_p= 1360 MeV and T_p= 1450 MeV using the CELSIUS/WASA detector setup. At both energies, the differential cross section dsigma/dOmega of the eta meson in the pd -> 3He eta reaction shows a strong forward-backward asymmetry in the CMS. The ratio between the pd -> 3He pi+ pi- pi0 and the pd -> 3He pi0 pi0 pi0 cross sections has been analysed in terms of isospin amplitudes. The reconstructed invariant mass distributions of the pi-pi, 3He-pi and 3He-2pi systems provide hints on the role of nucleon resonances in the 3pi production process.<br />Comment: Shorter version accepted to EPJA 10 pages 14 figures
- Subjects :
- Nuclear Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- Eur.Phys.J.A45:11-21,2010
- Publication Type :
- Report
- Accession number :
- edsarx.1001.4604
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1140/epja/i2010-10981-3