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Isoscaling in Statistical Sequential Decay Model
- Source :
- Chinese Physics Letters. 24:385-388
- Publication Year :
- 2007
- Publisher :
- IOP Publishing, 2007.
-
Abstract
- A sequential decay model is used to study isoscaling, i.e. the factorization of the isotope ratios from sources of different isospins and sizes over a broad range of excitation energies, into fugacity terms of proton and neutron number, R21(N,Z) = Y2(N,Z)/Y1(N,Z) = Ce(αN+βZ). It is found that the isoscaling parameters α and β have a strong dependence on the isospin difference of equilibrated source and excitation energy, no significant influence of the source size on α and β has been observed. It is found that α and β decrease with the excitation energy and are linear functions of 1/T and Δ(Z/A)2 or Δ(N/A)2 of the sources. Symmetry energy coefficient Csym is constrained from the relationship of α and source Δ(Z/A)2, β and source Δ(N/A)2.
Details
- ISSN :
- 17413540 and 0256307X
- Volume :
- 24
- Database :
- OpenAIRE
- Journal :
- Chinese Physics Letters
- Accession number :
- edsair.doi...........a25da0b8c46ca659d5d9f0bcd8c339bf