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Journal of Physics G: Nuclear and Particle Physics 37 (2010) 085010
Symmetry energy of fragments produced in multifragmentation
D. Henzlova, A.S. Botvina, K.-H. Schmidt, V. Henzl, P. Napolitani1, M.V. Ricciardi

Isospin properties of fragments measured in multifragmentation of $^{136}$Xe and $^{124}$Xe 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 at subnuclear densities at high temperatures decreases in comparison with cold nuclei.
1 :  IPNO - Institut de Physique Nucléaire d'Orsay
Physique/Physique Nucléaire Expérimentale
Symmetry energy – Isoscaling – Multifragmentation
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