Classical stability of U(1)_A domain walls in dense matter QCD
arXiv:hep-ph/0112144 · doi:10.1103/PhysRevD.65.125011
Abstract
It was recently shown that there exists metastable U(1)_A domain wall configurations in high-density QCD (μ>> 1 GeV). In the following we will assess the stability of such non-trivial field configurations at intermediate densities (μ< 1 GeV). The existence of such configurations at intermediate densities could have interesting consequences for the physics of neutron stars with high core density.
13 pages, 2 Postscript figures, typos corrected