An approach was developed to describe the double-differential spectra of secondary particles formed in heavy-ion reactions. Griffin model of nonequilibrium processes was used to account for the nonequilibrium stage of the compound system formation. Simulation of de-excitation of the compound system was carried out using the Monte-Carlo method. Analysis of the probability of neutron, proton, and alpha-particle emission was performed both in equilibrium, and in the pre-equilibrium stages of the process. Fission and gamma-ray emission were also considered after equilibration. The analysis of the experimental data on the double-differential cross sections of p, alpha particles for the O-16 + Sn-116 reaction at the oxygen energy E = 130 and 250 MeV were performed.

Double-differential spectra of the secondary particles in the frame of pre-equilibrium model / O.V. Fotina, V.L. Kravchuk, S. Barlini, F. Gramegna, D.O. Eremenko, Y.L. Parfenova, S.Y. Platonov, O.A. Yuminov, M. Bruno, M. D'Agostino, G. Casini, O. Wieland, A. Bracco, F. Camera. - In: PHYSICS OF ATOMIC NUCLEI. - ISSN 1063-7788. - 73:8(2010 Aug), pp. 1317-1321. [10.1134/S1063778810080053]

Double-differential spectra of the secondary particles in the frame of pre-equilibrium model

A. Bracco;F. Camera
2010

Abstract

An approach was developed to describe the double-differential spectra of secondary particles formed in heavy-ion reactions. Griffin model of nonequilibrium processes was used to account for the nonequilibrium stage of the compound system formation. Simulation of de-excitation of the compound system was carried out using the Monte-Carlo method. Analysis of the probability of neutron, proton, and alpha-particle emission was performed both in equilibrium, and in the pre-equilibrium stages of the process. Fission and gamma-ray emission were also considered after equilibration. The analysis of the experimental data on the double-differential cross sections of p, alpha particles for the O-16 + Sn-116 reaction at the oxygen energy E = 130 and 250 MeV were performed.
angular-distributions ; level densities ; cross-sections ; optical-model ; scattering ; emission ; nuclei
Settore FIS/04 - Fisica Nucleare e Subnucleare
ago-2010
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/150438
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