7th Workshop on Nuclear Fission and Spectroscopy of Neutron-Rich Nuclei

Session

session 11 (Chair: A. Goergen)

session_11

12 Mar 2026, 08:30

Salle Totem, Le Bachat, Chamrousse, France

79. Shell effects in Quasi-fission: a theoretical perspective

Cedric Simenel (Australian National University)

12/03/2026, 08:30

Quasifission occurs in fully damped heavy-ion collisions following a significant mass transfer between the fragments, without formation of a compound nucleus. It is the primary reaction mechanism hindering the formation of a superheavy compound nucleus after the collision partners have reached contact. As in fission, quasi-fission is expected to be affected by quantum effects leading to...

2. Fission with PARIS @ VAMOS

Michal Ciemala (IFJ PAn)

12/03/2026, 08:55

As obvious from the intense experimental and theoretical work done over the past decades, nuclear fission is complex. A major reason of this is the interference of various aspects, from both reaction dynamics and nuclear structure, which determines the observables that can ultimately be measured in the laboratory. The last years showed that high-fold coincidences between as many as possible...

12. Fast-timing lifetime measurements in A = 83 nuclei near the N = 50 shell closure

Ludovico Lapo Luperi (Institut Laue-Langevin)

12/03/2026, 09:20

Fast-timing measurements have been performed to investigate the nuclear structure of the A =
83 isobars 83Se and 83Br, with the aim of studying the evolution of collectivity and possible shape
coexistence in the vicinity of the N = 50 shell closure.
The experiment was carried out at the LOHENGRIN recoil mass separator at the Institut
Laue-Langevin. Neutron-induced fission products were...

7. Fission of Hg-194

Krzysztof Miernik (University of Warsaw, Faculty of Physics)

12/03/2026, 09:35

We present results of experiment focused on a previously unknown fission characteristic of Hg-194 perfromed at the ALTO facility during the campaign with the nu-ball-2 spectrometer. The nuclide of interest was created in a fusion reaction of C-12 beam on a thick W-182 target. Independent fission yields of even-even nuclei were determined by detecting gamma-gamma cascades in the fission...

44. Angular Momentum in Fission through 241Am(2nth, f ) Isomeric Ratio measurements with the Lohengrin spectrometer

Anna SKOULOUDAKI (CEA Cadarache)

12/03/2026, 09:50

Despite decades of study, accurate modeling of nuclear fission remains difficult, as a wide variety of theoretical approaches—microscopic, macroscopic, and phenomenological models—are based on different underlying assumptions. To date, despite this diversity of approaches, none of the currently existing models can predict the angular-momentum generation mechanism with satisfactory accuracy. To...