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Title: Phase transition from hadronic matter to quark matter

Abstract

We study the phase transition from nuclear matter to quark matter within the SU(3) quark mean field model and NJL model. The SU(3) quark mean field model is used to give the equation of state for nuclear matter, while the equation of state for color superconducting quark matter is calculated within the NJL model. It is found that at low temperature, the phase transition from nuclear to color superconducting quark matter will take place when the density is of order 2.5?0 - 5?0. At zero density, the quark phase will appear when the temperature is larger than about 148 MeV. The phase transition from nuclear matter to quark matter is always first order, whereas the transition between color superconducting quark matter and normal quark matter is second order.

Authors:
; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA
Sponsoring Org.:
USDOE - Office of Energy Research (ER)
OSTI Identifier:
893699
Report Number(s):
JLAB-THY-06-545; DOE/ER/40150-5037
Journal ID: ISSN 0556-2813; PRVCAN; TRN: US0606064
DOE Contract Number:
AC05-06OR23177
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review C; Journal Volume: 75; Journal Issue: 4
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; NUCLEAR MATTER; QUARK MATTER; QUARKS; SUPERCONDUCTIVITY

Citation Formats

Wang, P., Thomas, A. W., and Williams, A. G. Phase transition from hadronic matter to quark matter. United States: N. p., 2007. Web. doi:10.1103/PhysRevC.75.045202.
Wang, P., Thomas, A. W., & Williams, A. G. Phase transition from hadronic matter to quark matter. United States. doi:10.1103/PhysRevC.75.045202.
Wang, P., Thomas, A. W., and Williams, A. G. Sun . "Phase transition from hadronic matter to quark matter". United States. doi:10.1103/PhysRevC.75.045202. https://www.osti.gov/servlets/purl/893699.
@article{osti_893699,
title = {Phase transition from hadronic matter to quark matter},
author = {Wang, P. and Thomas, A. W. and Williams, A. G.},
abstractNote = {We study the phase transition from nuclear matter to quark matter within the SU(3) quark mean field model and NJL model. The SU(3) quark mean field model is used to give the equation of state for nuclear matter, while the equation of state for color superconducting quark matter is calculated within the NJL model. It is found that at low temperature, the phase transition from nuclear to color superconducting quark matter will take place when the density is of order 2.5?0 - 5?0. At zero density, the quark phase will appear when the temperature is larger than about 148 MeV. The phase transition from nuclear matter to quark matter is always first order, whereas the transition between color superconducting quark matter and normal quark matter is second order.},
doi = {10.1103/PhysRevC.75.045202},
journal = {Physical Review C},
number = 4,
volume = 75,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2007},
month = {Sun Apr 01 00:00:00 EDT 2007}
}
  • We study the phase transition from two-flavor nuclear matter to quark matter. A mean field model, constructed at the quark level, is used to give the equation of state for nuclear matter, while the equation of state for color superconducting quark matter is calculated within the NJL model. It is found that at low temperature, the phase transition from nuclear to color superconducting quark matter will take place when the density is of order 2.5{rho}{sub 0}-5{rho}{sub 0}. At zero density, the quark phase will appear when the temperature is larger than about 148 MeV. Within the mean field treatment, themore » phase transition from nuclear matter to quark matter is always first order, whereas the transition between color superconducting quark matter and normal quark matter is second order.« less
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  • We investigate the possibility and consequences of phase transitions from an equation of state (EOS) describing nucleons and hyperons interacting via mean fields of {sigma}, {omega}, and {rho} mesons in the recently improved quark-meson coupling (QMC) model to an EOS describing a Fermi gas of quarks in an MIT bag. The transition to a mixed phase of baryons and deconfined quarks, and subsequently to a pure deconfined quark phase, is described using the method of Glendenning. The overall EOS for the three phases is calculated for various scenarios and used to calculate stellar solutions using the Tolman-Oppenheimer-Volkoff equations. The resultsmore » are compared with recent experimental data, and the validity of each case is discussed with consequences for determining the species content of the interior of neutron stars.« less