Volume 58, Number 6, June 2002
|Page(s)||811 - 817|
|Published online||01 June 2002|
Limiting excitation energy for GDR gamma decay
INFN - Laboratorio Nazionale del Sud -
2 Dipartimento di Fisica, Università di Catania - Catania, Italy
3 INFN, Sezione di Catania - Catania, Italy
4 Dipartimento di Metodologie Fisiche e Chimiche per l'Ingegneria Università di Catania - Catania, Italy
Accepted: 19 March 2002
Gamma-ray spectra in coincidence with charged particles for the reactions , at are presented. The spectra statistical analysis shows the survival of the GDR up to an excitation energy of approximately 5 for a system with mass around 60. This result was obtained by improving statistical calculations by including the deuteron decay channel, the mass dependence of the GDR parameters in the decay chain, and the GDR isospin splitting.
PACS: 24.30.Cz – Giant resonances / 24.60.Dr – Statistical compound-nucleus reactions / 25.70.Jj – Fusion and fusion-fission reactions
© EDP Sciences, 2002
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