Comparison of radial flow effects on partitions of multifragmenting sources formed in symmetric and asymmetric central collisions

Abstract : The role of collective radial expansion in determining multifragmentation partition properties has previously been explored by comparing different-sized sources of the same excitation energy per nucleon formed by very different reaction mechanisms: excited quasi-projectiles from semi-peripheral Au+Au collisions and quasi-fused sources from central Xe+Sn collisions. New data has been obtained with INDRA on 181Ta+66Zn collisions in order to allow comparison of Xe+Sn data with quasi-fused systems having the same mass, charge and excitation energy per nucleon formed in mass-asymmetric reactions, for which a smaller initial compression is expected. Preliminary results confirm that, ceteris paribus, smaller radial flow leads to less fragments with more asymmetric partitions.
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Communication dans un congrès
International Workshop on Multi facets of Eos and Clustering (IWM-EC 2014), May 2014, Catania, Italy. EPJ Web of Conferences, 88, pp.00009, 2015, 〈10.1051/epjconf/20158800009〉
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Contributeur : Michel Lion <>
Soumis le : vendredi 26 juin 2015 - 14:06:51
Dernière modification le : jeudi 1 février 2018 - 01:35:27

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J.D. Frankland, D. Gruyer, E. Bonnet, A. Chbihi. Comparison of radial flow effects on partitions of multifragmenting sources formed in symmetric and asymmetric central collisions. International Workshop on Multi facets of Eos and Clustering (IWM-EC 2014), May 2014, Catania, Italy. EPJ Web of Conferences, 88, pp.00009, 2015, 〈10.1051/epjconf/20158800009〉. 〈in2p3-01168700〉

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