Charged particle decay of hot and rotating Mo88 nuclei in fusion-evaporation reactions

S. Valdré et al.
Phys. Rev. C 93, 034617 – Published 21 March 2016

Abstract

A study of fusion-evaporation and (partly) fusion-fission channels for the Mo88 compound nucleus, produced at different excitation energies in the reaction Ti48+Ca40 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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  • Received 11 September 2015

DOI:https://doi.org/10.1103/PhysRevC.93.034617

©2016 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

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Vol. 93, Iss. 3 — March 2016

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