Isoscaling and the nuclear EoS

Abstract

Experiments with rare isotopes are shedding light on the role isospin plays in the equation of state (EoS) of nuclear matter, and isoscaling - a straightforward comparison of reactions with different isospin - could deliver valuable information about it. In this work, we test this assertion pragmatically by comparing molecular dynamics simulations of isoscaling reactions using different EoS and looking for changes in the isoscaling parameters; to explore the possibility of isoscaling carrying information from the hot-and-dense stage of the reaction, we perform our study in confined and expanding systems. Our results indicate that indeed isoscaling can help us learn about the nuclear EoS, but only in some ranges of excitation energies. © 2011 IOP Publishing Ltd.