ar X iv : n uc l - th / 0 51 00 19 v 1 6 O ct 2 00 5 Break - up fragments excitation and the freeze - out volume
نویسنده
چکیده
Abstract We investigate, in microcanonical multifragmentation models, the influence of the amount of energy dissipated in break-up fragments excitation on freeze-out volume determination. Assuming a limiting temperature decreasing with nuclear mass, we obtain for the Xe+Sn at 32 MeV/nucleon reaction [J. D. Frankland et al., Nucl. Phys. A689, 905 (2001); A689, 940 (2001)] a freeze-out volume almost half the one deduced using a constant limiting temperature.
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