Isospin dependent thermodynamics of fragmentation
| dc.creator | Raduta, Ad. R. | |
| dc.creator | Gulminelli, F. | |
| dc.date | 2006-11-15 | |
| dc.date | 2008-06-09 | |
| dc.date.accessioned | 2026-07-07T10:22:38Z | |
| dc.date.available | 2026-07-07T10:22:38Z | |
| dc.description | The thermal and phase properties of a multifragmentation model which uses clusters as degrees of freedom, are explored as a function of isospin. A good qualitative agreement is found with the phase diagram of asymmetric nuclear matter as established by different mean-field models. In particular, from the convexity properties of the nuclear entropy, we show that uncharged finite nuclei display first and second order liquid-gas-like phase transitions. Different quantities are examined to connect the thermal properties of the system to cluster observables. In particular we show that fractionation is only a loose indication of phase coexistence. A simple analytical formula is proposed and tested to evaluate the symmetry (free) energy from the widths of isotopic distributions. Assuming that one may restore the isotopic composition of break-up fragments, it is found that some selected isotopic observables can allow to quantitatively access the freeze-out symmetry energy in multifragmentation experiments. | |
| dc.description | 23 pages, 7 figures | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0611056 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0611056 | |
| dc.identifier | Phys.Rev.C75:044605,2007 | |
| dc.identifier | doi:10.1103/PhysRevC.75.044605 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/175580 | |
| dc.subject | Nuclear Theory | |
| dc.title | Isospin dependent thermodynamics of fragmentation | |
| dc.type | text |