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Isospin Diffusion in $^{58}$Ni-Induced Reactions at Intermediate Energies

Authors :
Galichet, E.
Rivet, Marie-France
Borderie, B.
Colonna, M.
Bougault, R.
Durand, D.
Neindre, N. Le
Lopez, O.
Manduci, L.
Vient, E.
Chbihi, A.
Frankland, J. D.
Wieleczko, J. P.
Dayras, R.
Volant, C.
Guinet, D. C. R.
Lautesse, P.
Parlog, M.
Rosato, E.
Vigilante, M.
Publication Year :
2010

Abstract

Isospin diffusion is probed as a function of the dissipated energy by studying two systems $^{58}$Ni+$^{58}$Ni and $^{58}$Ni+$^{197}$Au, over the incident energy range 52-74\AM. Experimental data are compared with the results of a microscopic transport model with two different parameterizations of the symmetry energy term. A better overall agreement between data and simulations is obtained when using a symmetry term with a potential part linearly increasing with nuclear density. The isospin equilibration time at 52 \AM{} is estimated to 130$\pm$10 fm/$c$.

Subjects

Subjects :
Nuclear Experiment

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1003.1082
Document Type :
Working Paper
Full Text :
https://doi.org/10.1142/S021830131001593X