Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2000-01-17
Nucl.Phys. A671 (2000) 609-616
Physics
Nuclear Physics
Nuclear Theory
13 pages, 5 figures, Nuclear Physics A, in press
Scientific paper
10.1016/S0375-9474(99)00847-7
The sharp microcanonical multifragmentation model from [Al. H. Raduta and Ad. R. Raduta, Phys. Rev. C 55, 1344 (1997); Phys. Rev. C, in press] is employed for evaluating the nuclear caloric curve predictions of nine isotopic thermometers for three representative nuclei. Evaluations are performed for both primary decay and asymptotic stages. Effects of the secondary decays on the primary decay caloric curves are evidenced and discussed. In both cases a dispersive character of the isotopic caloric curves with increasing the source excitation energy is observed. A procedure of calibrating the isotopic thermometers on the microcanonical predictions for both primary decay and asymptotic stages is proposed. The resulting set of calibrating parameters for each thermometer is independent on the source size, on its excitation energy and, in the case of the primary decay, on the freeze-out radius assumption.
Raduta Ad. R.
Raduta Al. H.
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