English

Nuclear matter EOS with light clusters within the mean-field approximation

Nuclear Theory 2013-07-10 v1

Abstract

The crust of a neutron star is essentially determined by the low-density region (ρ<ρ00.150.16\unitfm3\rho<\rho_0\approx0.15-0.16\unit{fm}^{-3}) of the equation of state. At the bottom of the inner crust, where the density is ρ0.1ρ0\rho\lesssim0.1\rho_0, the formation of light clusters in nuclear matter will be energetically favorable at finite temperature. At very low densities and moderate temperatures, the few body correlations are expected to become important and light nuclei like deuterons, tritons, helions and α\alpha-particles will form. Due to Pauli blocking, these clusters will dissolve at higher densities ρ0.1ρ0\rho\gtrsim 0.1\rho_0. The presence of these clusters influences the cooling process and quantities, such as the neutrino emissivity and gravitational waves emission. The dissolution density of these light clusters, treated as point-like particles, will be studied within the Relativistic Mean Field approximation. In particular, the dependence of the dissolution density on the clusters-meson couplings is studied.

Keywords

Cite

@article{arxiv.1307.2534,
  title  = {Nuclear matter EOS with light clusters within the mean-field approximation},
  author = {Márcio Ferreira and Constança Providência},
  journal= {arXiv preprint arXiv:1307.2534},
  year   = {2013}
}

Comments

Contribution for the Conference Proceedings of the Compact Stars in the QCD Phase Diagram III (CSQCD III) conference, December 12-15, 2012, Guaruj\'a, Brazil. http://www.astro.iag.usp.br/~foton/CSQCD3

R2 v1 2026-06-22T00:48:25.218Z