Energy spectra have been measured for helium and hydrogen isotopes emitted from highly excited residues produced in central 129Xe + natCu collisions at E/A=30 MeV. The observed differences between the spectra for 3He and 4He nuclei can be attributed to the time dependent evaporative cooling of the residues. This cooling dynamics is also reflected in a characteristic dependence of isotope ratios on the kinetic energy of the emitted particles in reasonable agreement with present evaporative models.

Examining the cooling of hot nuclei

MARGAGLIOTTI, GIACOMO;RUI, RINALDO;
1998-01-01

Abstract

Energy spectra have been measured for helium and hydrogen isotopes emitted from highly excited residues produced in central 129Xe + natCu collisions at E/A=30 MeV. The observed differences between the spectra for 3He and 4He nuclei can be attributed to the time dependent evaporative cooling of the residues. This cooling dynamics is also reflected in a characteristic dependence of isotope ratios on the kinetic energy of the emitted particles in reasonable agreement with present evaporative models.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2559801
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