Reaction Dynamics with Exotic Nuclei

By V. Baran, M. Colonna, V. Greco, M. Toro. 2002

267 citations recorded by the source corpus.

AbstractWe review the new possibilities oﬀered by the reaction dynamics of asymmetricheavy ion collisions, using stable and unstable beams. We show that it represents arather unique tool to probe regions of highly Asymmetric Nuclear Matter (ANM) incompressed as well as dilute phases, and to test the in-medium isovector interactionfor high momentum nucleons. The focus is on a detailed study of the symmetryterm of the nuclear Equation of State (EOS) in regions far away from saturationconditions but always under laboratory controlled conditions.Thermodynamic properties of ANM are surveyed starting from nonrelativisticand relativistic eﬀective interactions. In the relativistic case the role of the isovectorscalar δ-meson is stressed. The qualitative new features of the liquid-gas phase tran-sition, ”diﬀusive” instability and isospin distillation, are discussed. The results ofab-initio simulations of n-rich, n-poor, heavy ion collisions, using stochastic isospindependent transport equations, are analysed as a function of beam energy and cen-trality. The isospin dynamics plays an important role in all steps of the reaction,from prompt nucleon emissions to the ﬁnal fragments. The isospin diﬀusion is alsoof large interest, due to the interplay of asymmetry and density gradients. In rela-tivistic collisions, the possibility of a direct study of the covariant structure of theeﬀective nucleon interaction is shown. Results are discussed for particle production,collective ﬂows and iso-transparency.Perspectives of further developments of the ﬁeld, in theory as well as in experi-ment, are presented.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/272d397923330b9e44c6d052c3ca68b412f46725

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In Nuclear and High Energy Physics

Citations in the corpus

The Nuclear Symmetry Energy (2016, methodology): “the elliptic flow has been studied with model calculations to test its usefulness as a probe of the stiffness of the symmetry energy [232, 233, 234].”