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Charged particle decay of hot and rotating $^{88}$Mo nuclei in fusion-evaporation reactions

Abstract : A study of fusion-evaporation and (partly) fusion-fission channels for the 88 Mo compound nucleus, produced at different excitation energies in the reaction 48 Ti + 40 Ca at 300, 450, and 600 MeV beam energies, is presented. Fusion-evaporation and fusion-fission cross sections have been extracted and compared with the existing systematics. Experimental data concerning light charged particles have been compared with the prediction of the statistical model in its implementation in the GEMINI++ code, well suited even for high spin systems, in order to tune the main model parameters in a mass region not abundantly covered by exclusive experimental data. Multiplicities for light charged particles emitted in fusion evaporation events are also presented. Some discrepancies with respect to the prediction of the statistical model have been found for forward emitted α particles; they may be due both to pre-equilibrium emission and to reaction channels (such as deep inelastic collisions or quasifission/quasifusion) different from the compound nucleus formation.
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Contributor : Michel Lion <>
Submitted on : Monday, March 21, 2016 - 4:33:41 PM
Last modification on : Thursday, February 1, 2018 - 1:25:49 AM

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S. Valdre, S. Piantelli, G. Casini, S. Barlini, S. Carboni, et al.. Charged particle decay of hot and rotating $^{88}$Mo nuclei in fusion-evaporation reactions. Physical Review C, American Physical Society, 2016, 93, pp.034617. ⟨10.1103/PhysRevC.93.034617⟩. ⟨in2p3-01291578⟩



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