2018 Impact factor 2.481
Hadrons and Nuclei
Eur. Phys. J. A 2, 281-293

Study of the fusion-fission process in the 35Cl + 24Mg reaction

C. Beck1 - R. Nouicer1 - D. Mahboub1 - B. Djerroud1 - R.M. Freeman1 - A. Hachem1 - T. Matsuse1 - Sl. Cavallaro2 - E. De Filippo2 - G. Lanzanó2 - A. Pagano2 - M.L. Sperduto2 - R. Dayras3 - E. Berthoumieux3 - R. Legrain3 - E. Pollacco3

1 Institut de Recherches Subatomiques, Institut National de Physique Nucléaire et de Physique des Particules - Centre National de la Recherche Scientifique/Université Louis Pasteur, B.P.28, F-67037 Strasbourg Cedex 2, France
2 Dipartimento di Fisica dell'Universitá di Catania, INFN and LNS Catania, I-95129 Catania, Italy
3 DAPNIA/SPhN, C.E. Saclay, F-91191 Gif sur Yvette Cedex, France

Received: 12 March 1998 Communicated by D. Schwalm

Abstract
Fusion-fission and fully energy-damped binary processes of the 35Cl+24Mg reaction were investigated using particle-particle coincidence techniques at a 35Cl bombarding energy of Elab $\approx$8 MeV/nucleon. Inclusive data were also taken in order to determine the partial wave distribution of the fusion process. The fragment-fragment correlation data show that the majority of events arises from a binary-decay process with a relatively large multiplicity of secondary light-charged particles emitted by the two primary excited fragments in the exit channel. No evidence is observed for ternary-breakup processes, as expected from the systematics recently established for incident energies below 15 MeV/nucleon and for a large number of reactions. The binary-process results are compared with predictions of statistical-model calculations. The calculations were performed using the Hauser-Feshbach method, based on the available phase space at the scission point of the compound nucleus. This new method uses temperature-dependent level densities and its predictions are in good agreement with the presented experimental data, thus consistent with the fusion-fission origin of the binary fully-damped yields.

PACS
24.60.Dr Statistical compound-nucleus reactions - 25.70.Gh Compound nucleus - 25.70.Jj Fusion and fusion-fission reaction - 25.70.-z Low and intermediate energy heavy-ion reactions


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