"Investigating the Isotopic Effects in Nuclear Fragmentation"
Nihal Buyukcizmeci, Selcuk University
(id #46)
Seminar: Yes
Poster: No
Invited talk: No
Investigating the Isotopic Effects in Nuclear Fragmentation
N. Buyukcizmeci
Department of Physics, Selçuk University, 42079 Konya, Turkey.
(In collaboration with A.S. Botvina and R. Ogul )
Isotopic effects in nuclear multifragmentation are also important for astrophysical processes such as supernova simulations and neutron star models. Modifications for symmetry and surface energy coefficients of nuclear matter at freze-out density are investigated theoretically
by means of isoscaling. In order to compare our predictions with MSU experimental data we consider the fragmentation of the projectiles $^{124}$Sn and $^{112}$Sn which were also used for the MSU experiments. It is seen that while the isoscaling parameters as predicted by statistical multifragmentation model calculations for the single sources $^{124}$Sn and $^{112}$Sn are very sensitive to the symmetry term, the surface energy variation slightly affects the isoscaling parameters. Comparing our results with MSU experimental data, it is confirmed that a significant reduction of the symmetry term coefficient is found necessary to reproduce the isoscaling parameters.