In past experiments, mass asymmetric projectile-target combinations 124Sn+64N i and 112Sn+58N i were investigated at ELab( 112,124Sn)=35 A.MeV beam energy by using the 4π multi-detector CHIMERA. From a quantitative comparison of cross sections associated to Statistical and Dynamical Fission of the Projectile-Like Fragments, it resulted that Dynamical Fission process is about two times more probable in the neutron rich 124Sn+64N i system than in the 112Sn +58 N i neutron poor one. In contrast, no sizable difference was found for Statistical Fission mechanism. The observed difference in the strength of the Dynamical effects could arise from the difference in entrance channel Isospin (N/Z) content. In order to disentangle Isospin effects from effects due to the different masses of the two systems, a new experiment 124Xe+64Zn at 35 A.MeV beam energy has been recently carried out.

Isospin Against Size Effects In Projectile Dynamical Fission For112,124Sn+58,64Niand124Xe+64ZnReactions At 35 A.MeV

LANZALONE, GAETANO
Membro del Collaboration Group
;
2014

Abstract

In past experiments, mass asymmetric projectile-target combinations 124Sn+64N i and 112Sn+58N i were investigated at ELab( 112,124Sn)=35 A.MeV beam energy by using the 4π multi-detector CHIMERA. From a quantitative comparison of cross sections associated to Statistical and Dynamical Fission of the Projectile-Like Fragments, it resulted that Dynamical Fission process is about two times more probable in the neutron rich 124Sn+64N i system than in the 112Sn +58 N i neutron poor one. In contrast, no sizable difference was found for Statistical Fission mechanism. The observed difference in the strength of the Dynamical effects could arise from the difference in entrance channel Isospin (N/Z) content. In order to disentangle Isospin effects from effects due to the different masses of the two systems, a new experiment 124Xe+64Zn at 35 A.MeV beam energy has been recently carried out.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11387/112779
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