PACS: 25.70.-z Low and intermediate energy heavy-ion collisions – 24.60.-k Statistical theory and fluctuations – 25.70.Pq Multifragment emission and correlations
Springer Online Journal Archives 1860-2000
Abstract: Vaporized sources produced in collisions between 36Ar and 58Ni at 95 MeV per nucleon have been detected with the multidetector INDRA. Complete information concerning the deexcitation properties of quasi-projectiles, including second moments of chemical composition, is compared to a quantum statistical model describing a gas of fermions and bosons in thermal and chemical equilibrium. Inclusions in the calculation of all known discrete levels of nuclear species which deexcite into light particles and of a final state excluded volume interaction are found decisive to very well reproduce the experimental data, which strongly supports that thermodynamical equilibrium was achieved at freeze-out for such sources.
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