Isospin dependent multifragmentation of relativistic projectiles

Details Isospin dependent multifragmentation of relativistic projectiles Isospin dependent multifragmentation of relativistic projectiles

2010-06-18

arxiv.org/abs/1006.3723v2

Phys.Rev.C83:024608,2011

Physics

Nuclear Physics

Nuclear Experiment

23 pages, 29 figures, published in Physical Review C

Scientific paper

10.1103/PhysRevC.83.024608

The N/Z dependence of projectile fragmentation at relativistic energies has been studied with the ALADIN forward spectrometer at the GSI Schwerionen Synchrotron (SIS). Stable and radioactive Sn and La beams with an incident energy of 600 MeV per nucleon have been used in order to explore a wide range of isotopic compositions. For the interpretation of the data, calculations with the statistical multifragmentation model for a properly chosen ensemble of excited sources were performed. The parameters of the ensemble, representing the variety of excited spectator nuclei expected in a participant-spectator scenario, are determined empirically by searching for an optimum reproduction of the measured fragment-charge distributions and correlations. An overall very good agreement is obtained. The possible modification of the liquid-drop parameters of the fragment description in the hot freeze-out environment is studied, and a significant reduction of the symmetry-term coefficient is found necessary to reproduce the mean neutron-to-proton ratios /Z and the isoscaling parameters of Z<=10 fragments. The calculations are, furthermore, used to address open questions regarding the modification of the surface-term coefficient at freeze-out, the N/Z dependence of the nuclear caloric curve, and the isotopic evolution of the spectator system between its formation during the initial cascade stage of the reaction and its subsequent breakup.

Affiliated with

Also associated with

No associations

Rating

Isospin dependent multifragmentation of relativistic projectiles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Isospin dependent multifragmentation of relativistic projectiles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isospin dependent multifragmentation of relativistic projectiles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-260934