Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2007-02-05
Eur.Phys.J.A32:175-182,2007
Physics
Nuclear Physics
Nuclear Theory
17 pages, 5 figures
Scientific paper
10.1140/epja/i2006-10381-4
In the case of Xe+Sn at 32 MeV/nucleon multifragmentation reaction break-up fragments are built-up from the experimentally detected ones using evaluations of light particle evaporation multiplicities which thus settle fragment internal excitation. Freeze-out characteristics are extracted from experimental kinetic energy spectra under the assumption of full decoupling between fragment formation and energy dissipated in different degrees of freedom. Thermal kinetic energy is determined uniquely while for freeze-out volume - collective energy a multiple solution is obtained. Coherence between the solutions of the break-up restoration algorithm and the predictions of a multifragmentation model with identical definition of primary fragments is regarded as a way to select the true value. The broad kinetic energy spectrum of $^3$He is consistent with break-up genesis of this isotope.
Bonnet Eric
Borderie Bernard
Neindre Nicolas Le
Piantelli S.
Raduta Ad. R.
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