Frankland, J. D. and Gruyer, D. and Bonnet, E. and Chbihi, A. (2016) Reaction mechanisms leading to 3-body exit channels in central collisions of 129Xe +nat Sn at 12 MeV/u. Il nuovo cimento C, 39 (6). pp. 1-7. ISSN 1826-9885
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Abstract
We attempt to ascertain whether well-known sub-Fermi energy reaction mechanisms (fusion-fission, quasifission, deep-inelastic reactions) can explain the cross-sections and other characteristics recently observed for 3-fragment exit channels of central 129Xe + natSn collisions from 8 to 25MeV/u measured with INDRA. In a first step, we have simulated deep-inelastic and capture (fusion-fission and/or quasifission) reactions at 12MeV/u using the Deep Inelastic Transfers model coupled with GEMINI++, which we compare with data using a detailed software simulation of the INDRA array. Although minimum-bias measured and simulated reaction cross-sections are in good agreement, the cross-sections for 3-fragment exit channels are largely underestimated by the simulation. Moreover, 90% of simulated 3-body events are associated with mid-peripheral deep-inelastic collisions, whereas the measured coincident light charged-particle yields are consistent with central collisions leading to fusion or quasifission. However the observed 3-body yield seems beyond the reach of standard statistical decay of the primary (quasi)fission fragments.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 16 Nov 2020 20:54 |
| Last Modified: | 16 Nov 2020 20:54 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/19728 |
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