TY  - JOUR
A1  - Ogul, Rıza
A1  - Imal, Hamide
A1  - Ergun, Asli
A1  - Buyukcizmeci, Nihal
A1  - Botvina, Alexander
A1  - Trautmann, Wolfgang
T1  - Theoretical study of projectile fragmentations in relativistic heavy-ion reactions
T2  - EPJ Web of Conferences
N2  - We have investigated and interpreted the production cross sections and isotopic distributions of projectile-like residues in the reactions 124Sn + 124Sn and 112Sn + 112Sn at an incident beam energy of 1 GeV/nucleon measured with the FRS fragment separator at the GSI laboratory. For the interpretation of the data, calculations within the statistical multifragmentation model (SMM) for an ensemble of excited sources were performed with ensemble parameters. The possible modification of symmetry energy parameter, in the multifragmentation region at the low density and hot freeze-out environment, is studied. It is reconfirmed that a significant reduction of the symmetry energy term is found necessary to reproduce experimental results at these conditions. We have also found a decreasing trend of the symmetry energy for large neutron-rich fragments of low excitation energy which is interpreted as a nuclear-structure effect.
Y1  - 2018
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54791
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-547914
SN  - 2100-014X
VL  - 93.2015
IS  - 02022
PB  - EDP Sciences
ER  -