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Possibility of structured mixed phases at first order phase transitions is examined with taking into account of charge screening and surface effects. Hadron-quark phase transition in dense neutron star interior is considered, as concrete…

Nuclear Theory · Physics 2015-06-26 D. N. Voskresensky , M. Yasuhira , T. Tatsumi

Possibility of the structured mixed phases at first order phase transitions in neutron stars is reexamined by taking into account the charge screening effect. The Maxwell construction is shown to be not conflicted with the Gibbs conditions…

Nuclear Theory · Physics 2007-05-23 T. Tatsumi , D. N. Voskresensky

Possibility of structured mixed phase at first order phase transitions is examined by taking into account of charge screening and surface effects. Hadron-quark phase transition in dense neutron star interiors is considered as a concrete…

Nuclear Theory · Physics 2015-06-26 T. Tatsumi , M. Yasuhira , D. N. Voskresensky

A structured mixed phase consisting of quark and hadron phases is numerically studied with the Coulomb screening effect and the surface effect. We carefully introduced the Coulomb potential, so that a geometrical structure becomes…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tomoki Endo , Toshiki Maruyama , Satoshi Chiba , Toshitaka Tatsumi

We study the charge screening effect in the hadron-quark mixed phase. By including the charge screening effect, rearrangement of charged particles occurs and some part becomes locally charge-neutral. As a result the equation of state for…

Astrophysics · Physics 2007-05-23 Tomoki Endo , Toshiki Maruyama , Satoshi Chiba , Toshitaka Tatsumi

The hadron-quark phase transition in the interior of compact stars is investigated, when the transition proceeds through a mixed phase. The hadronic phase is described in the framework of relativistic mean-field theory, when also the…

Solar and Stellar Astrophysics · Physics 2009-12-02 G. B. Alaverdyan

We consider the possible formation of the quark hadron mixed phase in protoneutron stars. We discuss two cases: the first one, corresponding to a vanishingly small value of the surface tension of quark matter, is the well known mixed phase…

Solar and Stellar Astrophysics · Physics 2014-11-20 Giuseppe Pagliara , Matthias Hempel , Jurgen Schaffner-Bielich

The Coulomb interaction effect and the surface effect are consistently taken into account in the hadron-quark mixed phase. These two finite-size effects greatly change the properties of the mixed phase and restrict its density region. In…

High Energy Physics - Phenomenology · Physics 2009-11-11 Tomoki Endo , Toshiki Maruyama , Satoshi Chiba , Toshitaka Tatsumi

We examine which first order phase transitions are consistent with today's astrophysical constraints. In particular, we explore how a well-constrained mass-radius data point would restrict the admissible parameter space and to this end, we…

Nuclear Theory · Physics 2024-03-26 Jan-Erik Christian , Jürgen Schaffner-Bielich , Stephan Rosswog

The quark-hadron phase transition at finite baryon chemical potential is investigated in the extended Nambu-Jona-Lasinio model in which the scalar-vector eight-point interaction is included holding the chiral symmetry. By comparing a…

High Energy Physics - Phenomenology · Physics 2015-03-13 Y. Tsue , J. da Providencia , C. Providencia , M. Yamamura

We analyze the different possibilities for the hadron-quark phase transition occurring in beta-stable matter including hyperons in neutron stars. We use a Brueckner-Hartree-Fock approach including hyperons for the hadronic equation of state…

Nuclear Theory · Physics 2008-11-26 Toshiki Maruyama , Satoshi Chiba , Hans-Josef Schulze , Toshitaka Tatsumi

We develop our previous study of the transition to deconfined quark phase in neutron stars, including the interaction in the quark equation of state to the leading order in the perturbative expansion within the confinement density-dependent…

Solar and Stellar Astrophysics · Physics 2015-06-24 A. Li , W. Zuo , G. -X. Peng

A first order phase transition at high baryon density implies that a mixed phase can occupy a significant region of the interior of a neutron star. In this article we investigate the effect of a droplet phase on neutrino transport inside…

Nuclear Theory · Physics 2009-10-31 Sanjay Reddy , George Bertsch , Madappa Prakash

We compare the Gibbs and Maxwell constructions for the hadron-quark phase transition in neutron and protoneutron stars, including interacting hyperons in the confined phase. We find that the hyperon populations are suppressed, and that…

Solar and Stellar Astrophysics · Physics 2015-05-20 N. Yasutake , G. F. Burgio , H. -J. Schulze

We investigate the constraints on the strength of first-order phase transitions in neutron star matter and its relation to the origin of nucleon mass. By combining the parity doublet model for the hadronic phase, the Nambu-Jona-Lasinio…

Nuclear Theory · Physics 2025-07-03 Bikai Gao

The characteristics of the hadron-to-quark first-order phase transition differ depending on whether charge neutrality is locally or globally fulfilled. In $\beta$-equilibrated matter, these two possibilities correspond to the Maxwell and…

Nuclear Theory · Physics 2025-12-10 Constantinos Constantinou , Mirco Guerrini , Tianqi Zhao , Sophia Han , Madappa Prakash

Hadron--quark mixed phase is expected in a wide region of the inner structure of hybrid stars. However, we show that the hadron--quark mixed phase should be restricted to a narrower region to because of the charge screening effect. The…

Solar and Stellar Astrophysics · Physics 2011-07-04 Tomoki Endo

Neutron star interiors provide the opportunity to probe properties of cold dense matter in the QCD phase diagram. Utilizing models of dense matter in accord with nuclear systematics at nuclear densities, we investigate the compatibility of…

High Energy Astrophysical Phenomena · Physics 2020-06-01 Sophia Han , M. A. A. Mamun , S. Lalit , C. Constantinou , M. Prakash

The Coulomb screening effect and the finite-size effect such as surface tension are figured out in the hadron-quark deconfinement phase transition. We study the mixed phase of the quark droplets immersed in hadron matter. We see that the…

Nuclear Theory · Physics 2009-11-10 Tomoki Endo , Toshiki Maruyama , Satoshi Chiba , Toshitaka Tatsumi

We investigate the properties of nuclear matter at the first-order phase transitions such as liquid-gas phase transition and hadron-quark phase transition. As a general feature of the first-order phase transitions of matter consisting of…

Nuclear Theory · Physics 2011-03-10 Toshiki Maruyama , Nobutoshi Yasutake , Toshitaka Tatsumi
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