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Symmetry energy of fragments produced in multifragmentation

D. Henzlova·A. S. Botvina·K. -H. Schmidt·V. Henzl·P. Napolitani·M. V. Ricciardi
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Abstract

Isospin properties of fragments measured in multifragmentation of 136Xe and 124Xe projectiles in mid-peripheral collisions with a lead target at 1 A GeV were studied within the statistical approach describing the liquid-gas nuclear phase transition. By analyzing the isoscaling phenomenon and the mean N-over-Z ratio of the fragments with Z=10-13 we have concluded that the symmetry energy of hot fragments produced in multifragment environment at subnuclear densities at high temperatures decreases in comparison with cold nuclei.

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D. Henzlova, A. S. Botvina, K. -H. Schmidt, V. Henzl, P. Napolitani, M. V. Ricciardi. 2010-06-16. Symmetry energy of fragments produced in multifragmentation. https://doi.org/10.1088/0954-3899%2F37%2F8%2F085010

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