Phases of neutron rich matter and hybrid neutron star in hybrid derivative coupling model.

Details Phases of neutron rich matter and hybrid neutron star in hybrid derivative coupling model. Phases of neutron rich matter and hybrid neutron star in hybrid derivative coupling model.

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999injpb..73..401s&link_type=abstract

Indian J. Phys., Part B, Vol. 73B, No. 2, p. 401 - 408

Physics

Neutron Stars: Quark Matter

Scientific paper

The authors have studied different phases such as the liquid gas phase, beta equilibrium phase and deconfined phase involving quarks of neutron rich matter in the frame work of a recently proposed hybrid derivative coupling model. They discuss the possible existence of a hybrid star with the core consisting of asymmetric quark matter, an intermediate region of mixed phase containing quarks and neutrinos and a crust of neutrons. The authors have determined the asymmetry parameter (i) βtnfl for which both pressure and compressibility vanish and (ii) βfl for which the binding energy as well as the pressure is zero. The baryon density and energy per baryon of self bound asymmetric quark matter resulting from neutrons have been calculated. The compressibility of asymmetric quark matter has also been determined.

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