Understanding isospin transport ratio: Influence of fast emissions and statistical de-excitation

Camaiani, A. (2022) Understanding isospin transport ratio: Influence of fast emissions and statistical de-excitation. Il nuovo cimento C, 45 (3). pp. 1-6. ISSN 1826-9885

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Abstract

We report on one of the main techniques used to estimate the neutron-proton equilibration in heavy-ion collision: the so-called isospin transport ratio, which is expected to bypass any perturbations introducing a linear transformation of the chosen observable. In this proceeding, we will focus on the perturbations introduced by fast and statistical emissions that occur after the projectile-target separation, when the equilibration is already established. We chose 40,48Ca+40,48Ca at 35 MeV/nucleon as a bench test, adopting a full model scheme based on the Antisymmetrized Molecular Dynamics models coupled with several statistical codes. Using the n-p ratio (N/Z) of the Quasi-Projectile as an isospin sensitive observable, we observed a perturbation introduced by the statistical de-excitation of the primary fragments at relatively low excitation energies (below 2 MeV/nucleon), while fast and more dynamical emissions after the projectile-target separation introduced some perturbation once the centrality of the events increased.

Item Type:	Article
Subjects:	500 Scienze naturali e Matematica > 530 Fisica
Depositing User:	Marina Spanti
Date Deposited:	30 Jun 2022 13:53
Last Modified:	30 Jun 2022 13:53
URI:	http://eprints.bice.rm.cnr.it/id/eprint/21937

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