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EnglishThe gamma decay of the giant dipole resonance (GDR) in the 132Ce compound nucleus with temperature up to about 4 MeV has been measured, using the reaction 64Ni + 68Zn at Ebeam = 300, 400, and 500 MeV. The gammas and charged particles measured in coincidence with recoils are consistent with a fully equilibrated compound nucleus emission. The GDR width, obtained with the statistical model analysis, is found to increase almost linearly with temperature. This increase is rather well reproduced within a model including thermal shape fluctuations and the lifetime of the compound nucleus.
The gamma decay of the giant dipole resonance (GDR) in the 132Ce compound nucleus with temperature up to about 4 MeV has been measured, using the reaction 64Ni + 68Zn at Ebeam = 300, 400, and 500 MeV. The gammas and charged particles measured in coincidence with recoils are consistent with a fully equilibrated compound nucleus emission. The GDR width, obtained with the statistical model analysis, is found to increase almost linearly with temperature. This increase is rather well reproduced within a model including thermal shape fluctuations and the lifetime of the compound nucleus.
| Titolo: | Giant Dipole Resonance in the Hot and Thermalized 132Ce Nucleus: Damping of Collective Modes at Finite Temperature |
| Autori interni: | |
| Data di pubblicazione: | 2006 |
| Rivista: | |
| Citazione: | Giant Dipole Resonance in the Hot and Thermalized 132Ce Nucleus: Damping of Collective Modes at Finite Temperature / O.Wieland; A. Bracco; F. Camera; G. Benzoni; N. Blasi; S. Brambilla; F. Crespi; A. Giussani; S. Leoni; P. Mason; B. Million; A. Moroni; S. Barlini; V. L. Kravchuk; F. Gramegna; A. Lanchais; P. Mastinu; A. Maj; M. Brekiesz; M. Kmiecik; M. Bruno; E. Geraci; G. Vannini; G. Casini; M. Chiari; A. Nannini; A. Ordine; E. Ormand. - 97(2006), pp. 012501-1-012501-4. |
| Abstract: | The gamma decay of the giant dipole resonance (GDR) in the 132Ce compound nucleus with temperature up to about 4 MeV has been measured, using the reaction 64Ni + 68Zn at Ebeam = 300, 400, and 500 MeV. The gammas and charged particles measured in coincidence with recoils are consistent with a fully equilibrated compound nucleus emission. The GDR width, obtained with the statistical model analysis, is found to increase almost linearly with temperature. This increase is rather well reproduced within a model including thermal shape fluctuations and the lifetime of the compound nucleus. |
| Handle: | http://hdl.handle.net/20.500.11769/44194 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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