skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Phase diagram of neutral quark matter: The effect of neutrino trapping

Abstract

We study the effect of neutrino trapping on the phase diagram of dense, locally neutral three-flavor quark matter within the framework of a Nambu-Jona-Lasinio model. In the analysis, dynamically generated quark masses are taken into account self-consistently. The phase diagrams in the plane of temperature and quark chemical potential, as well as in the plane of temperature and lepton-number chemical potential are presented. We show that neutrino trapping favors two-flavor color superconductivity and disfavors the color-flavor-locked phase at intermediate densities of matter. At the same time, the location of the critical line separating the two-flavor color-superconducting phase and the normal phase of quark matter is little affected by the presence of neutrinos. The implications of these results for the evolution of protoneutron stars are briefly discussed.

Authors:
;  [1]; ;  [2];  [3]
  1. Institut fuer Theoretische Physik, J. W. Goethe-Universitaet, D-60438 Frankfurt (Germany)
  2. Institut fuer Kernphysik, Technische Universitaet Darmstadt, D-64289 Darmstadt (Germany)
  3. Frankfurt Institute for Advanced Studies, J. W. Goethe-Universitaet, D-60438 Frankfurt (Germany)
Publication Date:
OSTI Identifier:
20776667
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.73.034025; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COLOR MODEL; FLAVOR MODEL; LEPTON NUMBER; NEUTRINOS; PHASE DIAGRAMS; POTENTIALS; QUARK MATTER; QUARKS; REST MASS; SUPERCONDUCTIVITY; TRAPPING

Citation Formats

Ruester, Stefan B., Rischke, Dirk H., Werth, Verena, Buballa, Michael, and Shovkovy, Igor A. Phase diagram of neutral quark matter: The effect of neutrino trapping. United States: N. p., 2006. Web. doi:10.1103/PhysRevD.73.034025.
Ruester, Stefan B., Rischke, Dirk H., Werth, Verena, Buballa, Michael, & Shovkovy, Igor A. Phase diagram of neutral quark matter: The effect of neutrino trapping. United States. doi:10.1103/PhysRevD.73.034025.
Ruester, Stefan B., Rischke, Dirk H., Werth, Verena, Buballa, Michael, and Shovkovy, Igor A. Wed . "Phase diagram of neutral quark matter: The effect of neutrino trapping". United States. doi:10.1103/PhysRevD.73.034025.
@article{osti_20776667,
title = {Phase diagram of neutral quark matter: The effect of neutrino trapping},
author = {Ruester, Stefan B. and Rischke, Dirk H. and Werth, Verena and Buballa, Michael and Shovkovy, Igor A.},
abstractNote = {We study the effect of neutrino trapping on the phase diagram of dense, locally neutral three-flavor quark matter within the framework of a Nambu-Jona-Lasinio model. In the analysis, dynamically generated quark masses are taken into account self-consistently. The phase diagrams in the plane of temperature and quark chemical potential, as well as in the plane of temperature and lepton-number chemical potential are presented. We show that neutrino trapping favors two-flavor color superconductivity and disfavors the color-flavor-locked phase at intermediate densities of matter. At the same time, the location of the critical line separating the two-flavor color-superconducting phase and the normal phase of quark matter is little affected by the presence of neutrinos. The implications of these results for the evolution of protoneutron stars are briefly discussed.},
doi = {10.1103/PhysRevD.73.034025},
journal = {Physical Review. D, Particles Fields},
number = 3,
volume = 73,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2006},
month = {Wed Feb 01 00:00:00 EST 2006}
}