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Shell effects in fusion-fission of heavy and superheavy nuclei |
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| Authors: | M G Itkis S Beghini A A Bogatchev L Corradi O Dorvaux F Hanappe A Gadea G Giardina I M Itkis M Jandel J Kliman G N Kniajeya N A Kondratiev I V Korzyukov E M Kozulin L Krupa L Latina T Materna G Montagnoli Yu Ts Oganessian I V Pokrovsky E V Prokhorova N Rowley A Ya Rusanov F Scarlassara A M Stefanini L Stuttgé S Szilner M Trotta V M Voskressenski |
| Institution: | 1. Flerov Laboratory of Nuclear Reactions, JINR, 141980, Dubna, Russia 2. Dipartimento di Fisica, Università di Padova, I-35100, Padova, Italy 3. Laboratorio Nazionali di Legnaro, INFN, I-35020, Legnaro (Padova), Italy 4. Institut de Recherches Subatomiques, F-67037, Strasbourg Cedex, France 5. Université Libre de Bruxelles, 1050, Bruxelles, Belgium 6. Dipartimento di Fisica dell’Università di Messina, 98166, Messina, Italy 7. Institute of Nuclear Physics of the NNC, 480082, Almaty, Kazakhstan |
| Abstract: | The process of fusion-fission of heavy and superheavy nuclei (SHE) with Z=82?122 formed in the reactions with 48Ca and 58Fe ions at energies near and below the Coulomb barrier has been studied. The experiments were carried out at the U-400 accelerator of the Flerov Laboratory of Nuclear Reactions (JINR) and at the XTU Tandem accelerator of the National Laboratory of Legnaro (LNL) using the time-of-flight spectrometer of fission fragments CORSET and the neutron multi-detector DEMON. As a result of the experiments, mass and energy distributions (MED) of fission fragments, fission, quasi-fission and evaporation residues cross sections, multiplicities of neutrons and γ quanta and their dependence on the mechanism of formation and decay of compound systems have been studied. |
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