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Isocaling and the symmetry energy in the multifragmentation regime of heavy-ion collisions

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Chen, Z. Kowalski, S. Huang, M. Wada, R. Keutgen, Thomas [UCL] Wang, J.

The ratio of the symmetry energy coefficient to temperature, a(sym)/T, in Fermi energy heavy-ion collisions, was experimentally extracted as a function of the fragment atomic number using isoscaling parameters and the variance of the isotope distributions. The extracted values were compared to the results of calculations made with an antisymmetrized molecular dynamics (AMD) model employing a statistical decay code to account for deexcitation of excited primary fragments. The experimental values are in good agreement with the values calculated from the final ground-state products but are significantly different from those characterizing the yields of the primary AMD fragments.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès libre
Publication date 2010
Language Anglais
Journal information "Physical Review C (Nuclear Physics)" - Vol. 81, no. 6 (2010)
Peer reviewed yes
Publisher Amer Physical Soc (College Pk)
issn 0556-2813
e-issn 1089-490X
Publication status Publié
Affiliation UCL - SST/CRC - Centre de ressources du cyclotron
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Bibliographic reference Chen, Z. ; Kowalski, S. ; Huang, M. ; Wada, R. ; Keutgen, Thomas ; et. al. Isocaling and the symmetry energy in the multifragmentation regime of heavy-ion collisions. In: Physical Review C (Nuclear Physics), Vol. 81, no. 6 (2010)
Permanent URL http://hdl.handle.net/2078.1/33723