Isospin diffusion is probed as a function of the dissipated energy by studying two systems 58Ni+58Ni and 58Ni+197Au, over the incident energy range 52-74A MeV. 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 A MeV is estimated to 130 ± 10 fm/c.
THE ISOSPIN DIFFUSION IN 58Ni-INDUCED REACTIONS AT INTERMEDIATE ENERGIES / E., Galichet; M. F., Rivet; B., Borderie; M., Colonna; R., Bougault; D., Durand; N., LE NEINDRE; O., Lopez; L., Manduci; E., Vient; A., Chbihi; J. D., Frankland; J. P., Wieleczko; R., Dayras; C., Volant; D. C. R., Guinet; P., Lautesse; M., Parlog; Rosato, Elio; Vigilante, Mariano. - In: INTERNATIONAL JOURNAL OF MODERN PHYSICS E. - ISSN 0218-3013. - STAMPA. - 19:8-9(2010), pp. 1534-1544. [10.1142/S021830131001593X]
THE ISOSPIN DIFFUSION IN 58Ni-INDUCED REACTIONS AT INTERMEDIATE ENERGIES
ROSATO, ELIO;VIGILANTE, MARIANO
2010
Abstract
Isospin diffusion is probed as a function of the dissipated energy by studying two systems 58Ni+58Ni and 58Ni+197Au, over the incident energy range 52-74A MeV. 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 A MeV is estimated to 130 ± 10 fm/c.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.