English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

The equation of state of neutron star matter is examined in terms of therelativistic mean-field theory, including a scalar-isovector $\delta$-mesoneffective field. The constants of the theory are determined numerically so thatthe empirically known characteristics of symmetric nuclear matter arereproduced at the saturation density. The thermodynamic characteristics of bothasymmetric nucleonic matter and $\beta$-equilibrium hadron-electron$npe$-plasmas are studied. Assuming that the transition to strange quark matteris an ordinary first-order phase transition described by Maxwell's rule, adetailed study is made of the variations in the parameters of the phasetransition owing to the presence of a $\delta$-meson field. The quark phase isdescribed using an improved version of the bag model, in which interactionsbetween quarks are accounted for in a one-gluon exchange approximation. Thecharacteristics of the phase transition are determined for various values ofthe bag parameter within the range $B\in[60,120]$ $MeV/fm^{3}$ and it is shownthat including a $\delta$-meson field leads to a reduction in the phasetransition pressure $P_{0}$ and in the concentrations $n_{N}$ and $n_{Q}$ atthe phase transition point.

Relativistic Mean-Field Theory Equation of State of Neutron Star Matter and a Maxwellian Phase Transition to Strange Quark Matter