Michael Buballa, Igor A. Shovkovy
Published 2005-08-18, updated 2005-09-02Version 2
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 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.
Comments: 4 pages, no figure; v2: minor clarifications, references added
Journal: Phys.Rev. D72 (2005) 097501
The mass distribution of quark matter
Determination of equation of state of quark matter from $J/ψ$ and $Υ$ suppression at RHIC and LHC
Color superconducting 2SC+s quark matter and gapless modes at finite temperatures
