Super-soft symmetry energy encountering non-Newtonian gravity in neutron stars

Details Super-soft symmetry energy encountering non-Newtonian gravity in neutron stars Super-soft symmetry energy encountering non-Newtonian gravity in neutron stars

2009-08-13

arxiv.org/abs/0908.1922v2

Physics

Nuclear Physics

Nuclear Theory

Version accepted by Physical Review Letters

Scientific paper

Considering the non-Newtonian gravity proposed in the grand unification theories, we show that the stability and observed global properties of neutron stars can not rule out the super-soft nuclear symmetry energies at supra-saturation densities. The degree of possible violation of the Inverse-Square-Law of gravity in neutron stars is estimated using an Equation of State (EOS) of neutron-rich nuclear matter consistent with the available terrestrial laboratory data.

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