Aleksandra Kelić

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The physics and the technical algorithms of the statistical de-excitation code ABLA07 are documented. The new developments of ABLA07 have been guided by the empirical knowledge obtained in a recent experimental campaign on the nuclide distributions measured at GSI, Darmstadt. Besides distinct signatures of very asymmetric binary splits, lighter systems show(More)
A new experimental approach is introduced to investigate the relaxation of the nuclear deformation degrees of freedom. Highly excited fissioning systems with compact shapes and low angular momenta are produced in peripheral relativistic heavy-ion collisions. Both fission fragments are identified in atomic number. Fission cross sections and fission-fragment(More)
Precise momentum distributions of identified projectile fragments, formed in the reactions 238U+Pb and 238U+Ti at 1A GeV, are measured with a high-resolution magnetic spectrometer. With increasing mass loss, the velocities first decrease as expected from previously established systematics, then level off, and finally increase again. Light fragments are on(More)
Using available experimental data on fission barriers and ground-state masses, a detailed study of the predictions of different models concerning the isospin dependence of saddle-point masses is performed. Evidence is found that several macroscopic models yield unrealistic saddle-point masses for very neutron-rich nuclei, which are relevant for the rprocess(More)
In the course of the concerted action “Lead for ADT”, which preceded the HINDAS project [1], an innovative experimental method has been developed at GSI-Darmstadt. This new approach is based on the inverse-kinematics method where a liquid-hydrogen target is bombarded with heavy projectiles. The reaction products are identified in-flight in mass and atomic(More)
J.-É. Ducret1, É. Le Gentil1, T. Aumann2, C.-O. Bacri 3, J. Benlliure4, M. Böhmer5, A. Boudard1, E. Casarejos4, L. Donadille1, M. Fernandez-Ordoñez4, R. Gernhäuser5, H. Johansson2, A. Kelić2, K. Kezzar1,2, R. Krücken5, T. Kurtukian-Nieto4, A. Lafriakh3, F. Lavaud1, A. Le Fèvre2, S. Leray1, J. Lukasik2, W.-F. J. Müller2, P. Pawlowski7, S. Pietri1, F.(More)
An extended experimental and theoretical campaign dedicated to the studies of spallation reactions in inverse kinematics has been performed at GSI, Darmstadt. This research program on spallation reactions is based on an innovative experimental approach, which exploits the unique installations of GSI: the accelerator complex provides heavy-ion beams at(More)
The construction of two new-generation complementary RIB facilities in Europe, one based on the in-flight fragmentation or fission (IFF) method (FAIR) and the other on the isotope separation online (ISOL) method (EURISOL) is expected in the next 10-15 years. The reaction mechanisms, responsible for the production of the secondary nuclei, along with the(More)
An overview on phenomena observed in low-energy fission is presented, including new results from a GSI experiment with relativistic secondary beams. The interpretation of the structural effects in terms of fission channels reveals an astonishing stability of the fission-channel positions in the heavy fragment in nuclear charge in contrast to the previously(More)