Gamma-ray spectra in coincidence with charged particles for the reactions Ca-40 + Ca-48, Ti-46 at E-inc = 25 A MeV are presented. The spectra statistical analysis shows the survival of the GDR up to an excitation energy of approximately 5 A MeV for a system with mass around 60 amu. 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.
|Titolo:||Limiting Excitation energy for GDR gamma decay|
|Data di pubblicazione:||2002|
|Appare nelle tipologie:||1.1 Articolo in rivista|