A quantitative comparison is made between the absolute cross sections associated with statistical and dynamical emission of heavy fragments in the 124Sn+64Ni and 112Sn+58Ni 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 124Sn+64Ni system as in the 112Sn+58Ni 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 ^{124}Sn+^{64}Ni reaction at 35A MeV / P. Russotto;E. De Filippo;A. Pagano;E. Piasecki;F. Amorini;A. Anzalone;L. Auditore;V. Baran;I. Berceanu;J. Blicharska;B. Borderie;R. Bougault;M. Bruno;J. Brzychczyk;G. Cardella;S. Cavallaro;M. B. Chatterjee;A. Chbihi;M. Colonna;M. D’Agostino;R. Dayras;M. Di Toro;J. Frankland;E. Galichet;W. Gawlikowicz;E. Geraci;F. Giustolisi;A. Grzeszczuk;P. Guazzoni;D. Guinet;S. Kowalski;E. La Guidara;G. Lanzalone;G. Lanzanò;N. Le Neindre;C. Maiolino;Z. Majka;M. Papa;M. Petrovici;S. Pirrone;R. Płaneta;G. Politi;A. Pop;F. Porto;M. F. Rivet;F. Rizzo;E. Rosato;K. Schmidt;K. Siwek-Wilczyńska;I. Skwira-Chalot;A. Trifirò;M. Trimarchi;M. Vigilante;J. P. Wieleczko;J. Wilczyński;L. Zetta;W. Zipper. - In: PHYSICAL REVIEW. C, NUCLEAR PHYSICS. - ISSN 0556-2813. - STAMPA. - 81:(2010), pp. 064605.1-064605.7. [10.1103/PhysRevC.81.064605]
Strong enhancement of dynamical emission of heavy fragments in the neutron-rich ^{124}Sn+^{64}Ni reaction at 35A MeV
BRUNO, MAURO;
2010
Abstract
A quantitative comparison is made between the absolute cross sections associated with statistical and dynamical emission of heavy fragments in the 124Sn+64Ni and 112Sn+58Ni 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 124Sn+64Ni system as in the 112Sn+58Ni neutron-poor one. This unexpected and significant difference indicates that the reaction mechanism is strongly dependent on the entrance-channel isospin (N/Z) content.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
