Possibility of a phase transition to a pion condensate in neutron stars

Details Possibility of a phase transition to a pion condensate in neutron stars Possibility of a phase transition to a pion condensate in neutron stars

Mar 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973phlb...43..359b&link_type=abstract

Physics Letters B, Volume 43, Issue 5, p. 359-361.

Physics

13

Scientific paper

We consider the possibility that a pion condensate may arise in an infinite nuclear medium as a consequence of the modification of the pion propagator due to isobar-hole and nucleon-hole excitations, This does not seem likely in a system with N = Z at densities of less than 0.17 fm-3, but does seem likely to occur at the densities encountered in the interior of neutron stars. We estimate a necessary neutron density of >= 0.38 fm-3 and a condensate energy density of >= - 0.25 MeV fm-3.

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