Phase Transition and Hybrid Star in a Su(2) Chiral Sigma Model
نویسنده
چکیده
We use a modified SU(2) chiral sigma model to study nuclear matter at high density using mean field approach. We also study the phase transition of nuclear matter to quark matter in the interior of highly dense neutron stars. Stable solutions of Tolman-Oppenheimer-Volkoff equations representing hybrid stars are obtained with a maximum mass of 1.69M ⊙ , radii around 9.3 kms and a quark matter core constituting nearly 55-85% of the star radii.
منابع مشابه
ar X iv : n uc l - th / 0 30 70 57 v 1 1 3 Ju l 2 00 3 SU ( 2 ) CHIRAL SIGMA MODEL STUDY OF PHASE TRANSITION IN HYBRID STARS
We use a modified SU(2) chiral sigma model to study nuclear matter component and simple bag model for quark matter constituting a neutron star. We also study the phase transition of nuclear matter to quark matter with the mixed phase characterized by two conserved charges in the interior of highly dense neutron stars. Stable solutions of Tolman-Oppenheimer-Volkoff equations representing hybrid ...
متن کاملuc l - th / 0 20 90 92 v 1 2 7 Se p 20 02 PHASE TRANSITION AND HYBRID STAR IN A SU ( 2 ) CHIRAL SIGMA MODEL
We use a modified SU(2) chiral sigma model to study nuclear matter at high density using mean field approach. We also study the phase transition of nuclear matter to quark matter in the interior of highly dense neutron stars. Stable solutions of Tolman-Oppenheimer-Volkoff equations representing hybrid stars are obtained with a maximum mass of 1.69M ⊙ , radii around 9.3 kms and a quark matter co...
متن کاملSe p 20 02 PHASE TRANSITION AND HYBRID STAR IN A SU ( 2 ) CHIRAL SIGMA MODEL
We use a modified SU(2) chiral sigma model to study nuclear matter at high density using mean field approach. We also study the phase transition of nuclear matter to quark matter in the interior of highly dense neutron stars. Stable solutions of Tolman-Oppenheimer-Volkoff equations representing hybrid stars are obtained with a maximum mass of 1.69M ⊙ , radii around 9.3 kms and a quark matter co...
متن کامل0 30 60 85 v 1 2 9 Ju n 20 03 FINITE TEMPERATURE STUDY OF NUCLEAR MATTER IN SU ( 2 ) CHIRAL SIGMA MODEL
We study here the equation of state of symmetric nuclear matter at finite temperatures using a modified SU(2) Chiral Sigma model. The effect of temperature on effective mass, entropy and binding energy is also studied. The liquid-gas phase transition is investigated and the critical values of temperature, density and pressure are calculated.
متن کاملJ ul 2 00 3 FINITE TEMPERATURE STUDY OF NUCLEAR MATTER IN SU ( 2 ) CHIRAL SIGMA MODEL
We study here the equation of state of symmetric nuclear matter at finite temperatures using a modified SU(2) Chiral Sigma model. The effect of temperature on effective mass, entropy and binding energy is also studied. The liquid-gas phase transition is investigated and the critical values of temperature, density and pressure are calculated.
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تاریخ انتشار 2002