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Symmetry energy of fragments produced in multifragmentation
Henzlova D., Botvina A.S., Schmidt K.-H., Henzl V., Napolitani P. et al
Journal of Physics G: Nuclear and Particle Physics 37 (2010) 085010 - http://hal.in2p3.fr/in2p3-00024375
Physique/Physique Nucléaire Expérimentale
Symmetry energy of fragments produced in multifragmentation
D. Henzlova, A.S. Botvina, K.-H. Schmidt, V. Henzl, P. Napolitani1, M.V. Ricciardi
1 :  IPNO - Institut de Physique Nucléaire d'Orsay
http://ipnweb.in2p3.fr
CNRS : UMR8608 – IN2P3 – Université Paris XI - Paris Sud
IPN - 15, rue Georges Clemenceau - 91406 ORSAY CEDEX
France
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.

Articles dans des revues avec comité de lecture
2010
Journal of Physics G: Nuclear and Particle Physics (J. Phys. G: Nucl. Part. Phys.)
Publisher Institute of Physics: Hybrid Open Access
ISSN 0954-3899 (eISSN : 1361-6471)
37
085010

25.70.Mn, 25.70.Pq, 24.10.Pa
Symmetry energy – Isoscaling – Multifragmentation
Lien vers le texte intégral : 
http://fr.arXiv.org/abs/nucl-ex/0507003