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Influence of statistical sequential decay on isoscaling and symmetry energy coefficient in GEMINI simulation | | P. Zhou
; W. D. Tian
; Y. G. Ma
; X. Z. Cai
; D. Q. Fang
; H. W. Wang
; | | Date: |
13 May 2011 | | Abstract: | Extensive calculations on isoscaling behavior with the sequential-decay model
GEMINI are performed for the mediate-heavy nuclei in the mass range $A$ =
60-170 at excitation energies of up to 3 MeV per nucleon. The comparison
between the products after the first-step decay and the ones after entire-steps
decay demonstrates that there exists strong sequential decay effect on the
final isoscaling parameters and the apparent temperature. Not only the
entire-steps decay procedure reduces the isoscaling parameters $alpha$ and
$eta$, but also it makes the apparent source temperature smaller.
Consequently it results that the apparent energy parameter $gamma$ does not
reflect the initial symmetry energy coefficient $C_{sym}$ embedded in the mass
calculation formula from $alpha = 4gamma[(Z/A)_{1}^{2}-(Z/A)_{2}^{2}]/T$. | | Source: | arXiv, 1105.2749 | | Services: | Forum | Review | PDF | Favorites | |
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