Fusion-fission in the35Cl +12C reaction at Elab=180 MeV

Beck, Christian; Djerroud, B.; Heusch, B.; Dayras, R.; Freeman, R.M.; Haas, F.; Hachem, A.; Wieleczko, J. P.; Youlal, M.

doi:10.1007/bf01294763

Cited by 12 publications

(25 citation statements)

References 10 publications

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“…In this section we present the results for the highest energy studied El~b=200 MeV. Very similar results have been obtained at Ela b ~ 180 MeV (see [35]). The angular distributions of the lightest fragments , which were used to obtain the cross sections for the fission-like yields.…”

Section: Angular Distributionssupporting

confidence: 74%

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Competition between the fusion-fission and deep-inelastic orbiting mechanisms in the35Cl +12C reaction

Beck

Djerroud

Haas

et al. 1992

Z. Physik A - Hadrons and Nuclei

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The binary decay properties of the 477 nucleus, produced in the 35C1 + 12C reaction, have been investigated at the 35C1 bombarding energies Elab=180 and 200 MeV by means of a kinematical coincidence technique. Binary reaction products show full energy equilibration and a characteristic 1/sin(0om ) angular distribution. The elemental distribution of the fully-damped products is asymmetric, similar to what has previously been observed in the decay of the 56Ni nucleus. Comparison with theoretical model predictions suggests the occurrence of a fusion-fission rather than orbiting process. Moreover the calculations performed using the Extended HauserFeshbach Method reproduce well the experimental fission yields~ A general discussion of orbiting and fusionfission experimental data of light heavy-ion systems is presented in the framework of the calculated number of available open channels for these systems.

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Section: Angular Distributionssupporting

confidence: 74%

“…Some of the initial results of this work have been previously reported in shorter publications [28,35,36]. In this paper we present the data obtained at two 3sC1 beam energies, E]a b = 180 and 200 MeV.…”

Section: Introductionmentioning

confidence: 90%

Competition between the fusion-fission and deep-inelastic orbiting mechanisms in the35Cl +12C reaction

Beck

Djerroud

Haas

et al. 1992

Z. Physik A - Hadrons and Nuclei

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“…To summarize, the reaction products from the 35 Cl+ 24 Mg system were investigated in detail at the bombarding energy E lab ≈ 8 MeV/nucleon both with inclusive and exclusive measurements in the framework of a systematic study of the fusion-fission process in light composite systems [1,[3][4][5][6][7][15][16][17][18]24].…”

Section: Discussionmentioning

confidence: 99%

“…Nevertheless, the properties of the primary fission fragments can be deduced, even at energies as high as 275 MeV, by using the coincident data. As found for the 35 Cl+ 12 C reaction at the same incident energy [24] and at lower energies studied [3,6] The energy calibrations of the IC's were obtained using elastically scattered 35 Cl projectiles from 100 µg/cm 2 thick Au and C targets and from the Mg target, combined with measurements of α sources and a calibration pulser. On an event-by-event basis, corrections were applied for energy loss in the targets and in the entrance window foils on the IC's and for the pulse height defect in the Si detectors [30].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand reactions which produce three or more heavy fragments are known to be strongly suppressed in this energy regime. During the last two decades, considerable effort has been devoted to the understanding of the binary-reaction processes in heavy-ion collisions within the framework of a systematic study of the fusion-fission process (FF) for light-mass (20 ≤ A CN ≤ 60) composite systems [1][2][3][4][5][6][7][8][9][10][11][12][13]. It has been shown for example that entrance-channel effects do not play a significant role in the binary-decay processes of the 47 [7]) at comparable excitation energies and angular momenta.…”

Section: Introductionmentioning

confidence: 99%

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

Beck

Nouicer

Mahboub

et al. 1998

EPJ A

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Fusion-fission and fully energy-damped binary processes of the 35 Cl+ 24 Mg reaction were investigated using particle-particle coincidence techniques at a 35 Cl bombarding energy of E lab ≈ 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 sec-

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The competition between fusion-fission and deeply inelastic reactions in the medium mass systems

Lee

Jeong

et al. 1996

Z. Physik A - Hadrons and Nuclei

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The competition between fusion-fission and deeply inelastic reactions in the C1 + Ni system has been studied by investigating the exit channel Q-value dependence of the Z-distributions of fission-like fragments. The Z-, kinetic energy-and angular distributions of the fissionlike fragments produced in the 37C1 + 64Ni system at Elab = 170, 186 MeV and in the 28Si + 7~Ge system at Ela b = 176 MeV have been measured by counter telescopes. The Z-distribution of the 37C1 + 64Ni system was found to be essentially the same as that of the 3Sc1 + 62Ni system at the same bombarding energy. It is shown that this result can not be explained by the statistical fusion fission model but is consistent with a deeply inelastic model. A systematic study of the fission-like phenomenon in this mass region indicates that the maximum angular momenta for fusion reactions as well as the minimum angular momenta for DIC can be reproduced by the Bass model in the sliding limit (f= 1.0) while the maximum angular momenta for fully energy-damped deeply inelastic reactions are governed by the strong interaction radius as predicted by the successive critical distance fusion model. The significance of these results are discussed. 25.70.Lm PACS:

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Fusion-fission in the35Cl +12C reaction at Elab=180 MeV

Cited by 12 publications

References 10 publications

Competition between the fusion-fission and deep-inelastic orbiting mechanisms in the35Cl +12C reaction

Competition between the fusion-fission and deep-inelastic orbiting mechanisms in the35Cl +12C reaction

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

The competition between fusion-fission and deeply inelastic reactions in the medium mass systems

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