A quantitative comparison is made between the absolute cross sections associated with statistical and dynamical emission of heavy fragments in the Sn124+Ni64 and Sn112+Ni58 collisions experimentally investigated at 35A MeV beam energy using the multidetector CHIMERA. The result shows that the dynamical process is about twice as probable in the neutron-rich Sn124+Ni64 system as in the Sn112+Ni58 neutron-poor one. This unexpected and significant difference indicates that the reaction mechanism is strongly dependent on the entrance-channel isospin (N/Z) content.
Strong enhancement of dynamical emission of heavy fragments in the neutron - rich 124Sn + 64Ni reaction at 35 AMeV
AUDITORE, Lucrezia;TRIFIRO', ANTONIO;TRIMARCHI, MARINA;
2010-01-01
Abstract
A quantitative comparison is made between the absolute cross sections associated with statistical and dynamical emission of heavy fragments in the Sn124+Ni64 and Sn112+Ni58 collisions experimentally investigated at 35A MeV beam energy using the multidetector CHIMERA. The result shows that the dynamical process is about twice as probable in the neutron-rich Sn124+Ni64 system as in the Sn112+Ni58 neutron-poor one. This unexpected and significant difference indicates that the reaction mechanism is strongly dependent on the entrance-channel isospin (N/Z) content.File in questo prodotto:
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