2011/08/30 by Duojie Jia, Jia, Duojie, Yi-Ping Lu +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.1108.5887
arxiv created 2011/08/30 · arxiv updated 2011/08/31
A dual Ginzburg-Landau model of the knotted chromo-electric flux-tube is revisited, in which the covariant decomposition of gluon field and the random phase approximation are used. It is shown that the SU(2) QCD vacuum is of type-II superconductor, with the Ginzburg-Landau parameter κ= √(3), being independent of the magnetic condensate and strong coupling used, and consistent with the lattice data. The mass spectrum of a number of fJ meson states with J≤ 2, which are taken to be of glue dominate, are computed with help of the energies of the knotted(linked) QCD fluxtubes. The low-lying fJ states (leq 1.7GeV) are shown to be associated with the string excitations of the types 212 and K=31 in knot topologies.