Systems of intermediate fissility are characterized by an evaporation residues (ER) cross section comparable or larger than the fission cross section, and by a relatively higher probability for charged particle emission in the pre-scission channel. In a theoretical framework in which time scale estimates of the fission process rely on statistical model calculations, the analysis of particle emission in the ER channel is the source of additional constraints on the statistical and dynamical models. This contribution will offer an overall view of the systems studied so far and will provide new clues for interesting and contradictory physical cases. In particular, the analysis of the systems 32S + 100Mo at ELab = 200 MeV and 18O + 150Sm at ELab = 122 MeV will be presented. Recent advancement will be briefly discussed on the interplay between the fission and the evaporation residues channels as implied by a dynamical (Langevin) approach to the description of the fission process.
New clues on fission dynamics from systems of intermediate fissility / Vardaci, Emanuele; Brondi, Augusto; DI NITTO, Antonio; V., Fiorillo; D., Guadagnolo; LA RANA, Giovanni; Moro, RENATA EMILIA MARIA; M., Trotta; A., Ordine; A., Boiano; M., Cinausero; E., Fioretto; G., Prete; V., Rizzi; N., Gelli; F., Lucarelli; P. N., Nadotchy; V. A., Rubchenya. - STAMPA. - (2008), pp. 8-21. (Intervento presentato al convegno 6h Int. Conf. on Dynamical Aspects of Nuclear Fission tenutosi a Smolenice Castle Slovak Republic nel Oct. 2-6 2006).
New clues on fission dynamics from systems of intermediate fissility
VARDACI, EMANUELE;BRONDI, AUGUSTO;DI NITTO, antonio;LA RANA, GIOVANNI;MORO, RENATA EMILIA MARIA;
2008
Abstract
Systems of intermediate fissility are characterized by an evaporation residues (ER) cross section comparable or larger than the fission cross section, and by a relatively higher probability for charged particle emission in the pre-scission channel. In a theoretical framework in which time scale estimates of the fission process rely on statistical model calculations, the analysis of particle emission in the ER channel is the source of additional constraints on the statistical and dynamical models. This contribution will offer an overall view of the systems studied so far and will provide new clues for interesting and contradictory physical cases. In particular, the analysis of the systems 32S + 100Mo at ELab = 200 MeV and 18O + 150Sm at ELab = 122 MeV will be presented. Recent advancement will be briefly discussed on the interplay between the fission and the evaporation residues channels as implied by a dynamical (Langevin) approach to the description of the fission process.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
