Finite-size effects on the hadron-quark mixed phase

Abstract

Abstract. We show that the hadron-quark mixed phase is restricted to narrow range of baryon chemical potential by the charge screening effect. Accordingly the mixed phase expected in hadronquark hybrid stars should be narrow. Although the screening would not have large effect in bulk properties of the star such as mass or radius, it change the internal structure of the star very much, which may be tested by the cooling curve, glitch phenomena or gravitational waves.

Particle Ratios in a Multicomponent Nonideal Hadron Resonance Gas

“…Consequently, at adequately high temperature, the pressure in the ideal HRG phase pressure becomes more than the pressure in the QGP phase (i.e., P HRG > P QGP ). Or in simple words, considering a firstorder quark-hadron phase transition in a statistical thermal model framework with sufficiently large number of hadronic degrees of freedom, the system at high temperatures reverts to the hadronic resonance gas (HRG) phase [33][34][35][36][37]. According to lattice quantum chromodynamics (LQCD) predictions for vanishing net baryon number, the phase transition occurs at the critical temperature around 160 MeV and the system remains in the QGP phase at further higher temperatures [38][39][40].…”