Isospin emission and flows at high baryon density: a test of the symmetry potential

Details Isospin emission and flows at high baryon density: a test of the symmetry potential Isospin emission and flows at high baryon density: a test of the symmetry potential

2010-01-27

arxiv.org/abs/1001.4961v2

Phys.Rev.C81:044611,2010

Physics

Nuclear Physics

Nuclear Theory

10 pages, 16 figures, new figure added, accepted for publication in Phys.Rev.C

Scientific paper

10.1103/PhysRevC.81.044611

High energy Heavy Ion Collisions (HIC) are studied in order to access nuclear matter properties at high density. Particular attention is paid to the selection of observables sensitive to the poorly known symmetry energy at high baryon density, of large fundamental interest, even for the astrophysics implications. Using fully consistent transport simulations built on effective theories we test isospin observables ranging from nucleon/cluster emissions to collective flows (in particular the elliptic, squeeze out, part). The effects of the competition between stiffness and momentum dependence of the Symmetry Potential on the reaction dynamics are thoroughly analyzed. In this way we try to shed light on the controversial neutron/proton effective mass splitting at high baryon and isospin densities. New, more exclusive, experiments are suggested.

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