Even-odd effects in Z and N distributions of light fragments emitted at forward angles in nuclear collisions 40Ca + 40Ca, 40Ca + 48Ca, and 48Ca + 48Ca at 25 MeV/nucleon and identified in charge and mass with the Chimera multidetector have been analyzed. The amplitude of even-odd staggering effects seems to be related to the neutron to proton ratio N/Z of the entrance channels. A qualitative explanation of this effect, taking into account the deexcitation phase of primary excited fragments, is discussed.
Even-odd effects in Z and N distributions of fragments emitted at intermediate energies
AUDITORE, Lucrezia;LORIA, DARIO;TRIFIRO', ANTONIO;TRIMARCHI, MARINA;
2011-01-01
Abstract
Even-odd effects in Z and N distributions of light fragments emitted at forward angles in nuclear collisions 40Ca + 40Ca, 40Ca + 48Ca, and 48Ca + 48Ca at 25 MeV/nucleon and identified in charge and mass with the Chimera multidetector have been analyzed. The amplitude of even-odd staggering effects seems to be related to the neutron to proton ratio N/Z of the entrance channels. A qualitative explanation of this effect, taking into account the deexcitation phase of primary excited fragments, is discussed.File in questo prodotto:
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