par Chizhov, Yu;Yeremin, Alexander;Corradi, Lorenzo;Gadea, Andrés;Latina, Andrea;Stefanini, A.M. A.M.;Szilner, Suzana;Trotta, Monica;Vinodkumar, A.M.;Beghini, Silvio;Montagnoli, G.;Itkis, Mikhail;Scarlassara, Fernando;Rusanov, Ya;Hanappe, Francis 
;Dorvaux, O.;Rowley, Neil;Stuttge, Louise;Itkis, I.M.;Kniajeva, G.N.;Kozulin, E.M.;Kondratiev, N.A.;Pokrovsky, I.V.;Sagaidak, Roman;Voskressensky, V.M.
Référence Physical review. C. Nuclear physics, 67, 1, page (5)
Publication Publié, 2003
;Dorvaux, O.;Rowley, Neil;Stuttge, Louise;Itkis, I.M.;Kniajeva, G.N.;Kozulin, E.M.;Kondratiev, N.A.;Pokrovsky, I.V.;Sagaidak, Roman;Voskressensky, V.M.Référence Physical review. C. Nuclear physics, 67, 1, page (5)
Publication Publié, 2003
Article révisé par les pairs
| Résumé : | We have studied the mass and energy distributions of fission fragments from the two reactions [Formula Presented] and [Formula Presented] that lead to the same compound nucleus [Formula Presented] Despite the fact that the excitation energy was around 40 MeV in both cases, the contribution from asymmetric fission in the first reaction is only around 1.5% but is about 30% in the second. This marked increase in the yield of asymmetric products is connected to the quasifission process, in which important shell effects become evident. The mass-energy distributions are interpreted in terms of an independent decay mode competing with the normal fusion-fission process and possibly leading to a significant suppression of the fusion cross section itself. © 2003 The American Physical Society. |
