Finite temperature collective modes in a two phase coexistence region of asymmetric nuclear matter

Details Finite temperature collective modes in a two phase coexistence region of asymmetric nuclear matter Finite temperature collective modes in a two phase coexistence region of asymmetric nuclear matter

2010-09-04

arxiv.org/abs/1009.0801v2

Phys.Rev.C83:044325,2011

Physics

Nuclear Physics

Nuclear Theory

15 pages, 4 figures. Minor changes in the text

Scientific paper

10.1103/PhysRevC.83.044325

The relation between collective modes and the phase transition in low density nuclear matter is examined. The dispersion relations for collective modes in a linear approach are evaluated within a Landau-Fermi liquid scheme by assuming coexisting phases in thermodynamical equilibrium. Temperature and isospin composition are taken as relevant parameters. The in-medium nuclear interaction is taken from a recently proposed density functional model. We found significative modifications in the energy spectrum, within certain range of temperatures and isospin asymmetry, due to the separation of matter into independent phases. We conclude that detailed calculations should not neglect this effect.

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