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Title: Note on color neutrality in Nambu-Jona-Lasinio-type models

Abstract

By referring to the underlying physics behind the color charge neutrality condition in quark matter, we discuss how this condition should be properly imposed in Nambu-Jona-Lasinio (NJL)-type models in a phenomenologically meaningful way. In particular, we show that the standard assumption regarding the use of two color chemical potentials, chosen in a very special way, is not justified in general. When used uncritically, such an approach leads to wrong or unphysical conclusions.

Authors:
 [1];  [2]
  1. Institut fuer Kernphysik, Technische Universitaet Darmstadt, D-64289 Darmstadt (Germany)
  2. Frankfurt Institute for Advanced Studies, J.W. Goethe-Universitaet, D-60438 Frankfurt (Germany)
Publication Date:
OSTI Identifier:
20713889
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 72; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.72.097501; (c) 2005 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; CALCULATION METHODS; COLOR MODEL; POTENTIALS; QUARK MATTER

Citation Formats

Buballa, Michael, and Shovkovy, Igor A. Note on color neutrality in Nambu-Jona-Lasinio-type models. United States: N. p., 2005. Web. doi:10.1103/PhysRevD.72.097501.
Buballa, Michael, & Shovkovy, Igor A. Note on color neutrality in Nambu-Jona-Lasinio-type models. United States. doi:10.1103/PhysRevD.72.097501.
Buballa, Michael, and Shovkovy, Igor A. Tue . "Note on color neutrality in Nambu-Jona-Lasinio-type models". United States. doi:10.1103/PhysRevD.72.097501.
@article{osti_20713889,
title = {Note on color neutrality in Nambu-Jona-Lasinio-type models},
author = {Buballa, Michael and Shovkovy, Igor A.},
abstractNote = {By referring to the underlying physics behind the color charge neutrality condition in quark matter, we discuss how this condition should be properly imposed in Nambu-Jona-Lasinio (NJL)-type models in a phenomenologically meaningful way. In particular, we show that the standard assumption regarding the use of two color chemical potentials, chosen in a very special way, is not justified in general. When used uncritically, such an approach leads to wrong or unphysical conclusions.},
doi = {10.1103/PhysRevD.72.097501},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 72,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 2005},
month = {Tue Nov 01 00:00:00 EST 2005}
}