- Competition between evaporation and fragmentation in nuclear reactions at 15-20 AMeV beam energy
- Morelli, Luca <1982>
Subject
- FIS/04 Fisica nucleare e subnucleare
Description
- The reactions 32S+58,64Ni are studied at 14.5 AMeV. From this energy on, fragmentation begins to be a dominant process, although evaporation and fission are still present. After a selection of the collision mechanism, we show that important even-odd effects are present in the isotopic fragment distributions when the excitation energy is small. The staggering effect appears to be a universal feature of fragment production, slightly enhanced when the emission source is neutron poor. A closer look at the behavior of isotopic chains reveals that odd-even effects cannot be explained by pairing effects in the nuclear mass alone, but depend in a more complex way on the de-excitation chain.
Date
- 2011-05-20
Type
- Doctoral Thesis
- PeerReviewed
Format
- application/pdf
Identifier
urn:nbn:it:unibo-2520
Morelli, Luca (2011) Competition between evaporation and fragmentation in nuclear reactions at 15-20 AMeV beam energy, [Dissertation thesis], Alma Mater Studiorum Università di Bologna. Dottorato di ricerca in Fisica