Giant Dipole Resonance in the Hot and Thermalized 132Ce Nucleus: Damping of Collective Modes at Finite Temperature

Wieland, O.; Bracco, A.; Camera, F.; Benzoni, G.; Blasi, N.; Brambilla, S.; Crespi, F.; Giussani, A.; Leoni, S.; Mason, P.; Million, B.; Moroni, A.; Barlini, S.; Kravchuk, V. L.; Gramegna, F.; Lanchais, A.; Mastinu, P.; Maj, A.; Brekiesz, M.; Kmiecik, M.; Bruno, Mauro; Geraci, Elena Irene; Vannini, Gianni; Casini, G.; Chiari, M.; Nannini, A.; Ordine, A.; Ormand, E.

doi:10.1103/PhysRevLett.97.012501

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
Autore/i:	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; BRUNO, MAURO; GERACI, ELENA IRENE; VANNINI, GIANNI; G. Casini; M. Chiari; A. Nannini; A. Ordine; E. Ormand
Autore/i Unibo:	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 BRUNO, MAURO GERACI, ELENA IRENE VANNINI, GIANNI G. Casini M. Chiari A. Nannini A. Ordine E. Ormand mostra contributor esterni nascondi contributor esterni
Anno:	2006
Rivista:	PHYSICAL REVIEW LETTERS
Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevLett.97.012501
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.
Data prodotto definitivo in UGOV:	2007-10-17 19:04:36
Appare nelle tipologie:	1.01 Articolo in rivista

File in questo prodotto:

Eventuali allegati, non sono esposti

Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/11585/47574

Citazioni

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

CRIS Current Research Information System

File in questo prodotto: