| Autor: |
Fröhlich, I., Agakishiev, G., Agodi, C., Balanda, A., Bellia, G., Belver, D., Belyaev, A., Blanco, A., Böhmer, M., Boyard, J., Braun-Munzinger, P., Cabanelas, P., Castro, E., Chernenko, S., Christ, T., Destefanis, M., Dıaz, J., Dohrmann, F., Eberl, T., Fabbietti, L. |
| Předmět: |
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| Zdroj: |
European Physical Journal A -- Hadrons & Nuclei; Mar2007, Vol. 31 Issue 4, p831-835, 5p, 1 Diagram, 3 Graphs |
| Abstrakt: |
e + e - production was studied using the High Acceptance DiElectron Spectrometer (HADES). In pp collisions at 2.2GeV kinetic beam energy, the exclusive η production and the Dalitz decay η→ γe + e - have been reconstructed. The electromagnetic form factor of the latter decay was found to be in good agreement with the existing theoretical predictions. In addition, an inclusive e + e - invariant-mass spectrum from the 12C + 12C reaction at 2AGeV is presented and compared with a simplified thermal model. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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