Dynamical emission of heavy fragments in the 112,1124Sn+58,64Ni reactions at 35 AMeV as seen with CHIMERA

Russotto, P.; Piasecki, E.; Amorini, F.; Anzalone, A.; Auditore, Lucrezia; Baran, V.; Berceanu, I.; Blicharska, J.; Brzychczyk, J.; Borderie, B.; Bougault, R.; Bruno, M.; Cardella, G.; Cavallaro, S.; Chatterjee, M. B.; Chbihi, A.; Colonna, M.; D’Agostino, M.; Dayras, R.; De Filippo, E.; Di Toro, M.; Frankland, J.; Galichet, E.; Gawlikowicz, W.; Geraci, E.; Giustolisi, F.; Grzeszczuk, A.; Guazzoni, P.; Guinet, D.; Kowalski, S.; La Guidara, E.; Lanzalone, G.; Lanzanò, G.; Le Neindre, N.; Maiolino, C.; Majka, Z.; Papa, M.; Pagano, A.; Petrovici, M.; Pirrone, S.; Planeta, R.; Politi, Giuseppe; Pop, A.; Porto, F.; Rivet, M. F.; Rosato, E.; Rizzo, Francesca; Schmidt, K.; Siwek Wilczynska, K.; Skwira Chalot, I.; Sochoka, A.; Swiderski, L.; Trifirò, A.; Trimarchi, M.; Vigilante, M.; Wieleczko, J. P.; Wilczynski, J.; Zetta, L.; Zipper, W.

A quantitative comparison regarding absolute cross sections associated to Statistical and Dynamical Fission in the systems 124 Sn +64 Ni and 112 Sn + 58 Ni experimentally investigated at 35 AMeV beam energy is presented. It results that Dynamical Fission process is about two times more probable in the neutron rich 124 Sn +64 Ni system than in the 112 Sn + 58 Ni neutron poor one. At this point of our analysis it is not clear if the observed difference is originated by different entrance channel Isospin (N/Z) content or by different size between the two investigated systems