Pre-equilibrium effects on properties of hot giant dipole resonances
Anno: 1993
Autori: Chomaz P., Di Toro M., Smerzi A.
Affiliazione autori: GANIL, B.P. 5027, F-14021 Caen Cedex, France; INFN-Laboratorio Nazionale del Sud, Viale A. Doria, Catania, Italy; Dipartimento di Fisica, Catania, Italy
Abstract: In this article we analyse how the presence of a pre-equilibrium dipole strength can affect the properties of the giant dipole resonance (GDR) built on hot nuclei. We show that a little amount of GDR phonons still excited when the compound nucleus is formed will substantially modify the gamma-decay from the giant resonance region. Also on the basis of microscopic calculations of the reaction dynamics we propose to study the effect of the N over Z ratio in the entrance channel. This analysis could bring independent information on the problem of the GDR disappearing at high excitation energy.
Giornale/Rivista: NUCLEAR PHYSICS. A (PRINT)
Volume: 563 (3) Da Pagina: 509 A: 524
Parole chiavi: Excitation-energy; Collective Motion; Nuclei; Temperature; DependenceDOI: 10.1016/0375-9474(93)90126-ICitazioni: 94dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
