Gluons, quarks and deconfinement at high density

Details Gluons, quarks and deconfinement at high density Gluons, quarks and deconfinement at high density

2009-12-04

arxiv.org/abs/0912.0844v1

PoS QCD-TNT09 043 (2009)

Physics

High Energy Physics

High Energy Physics - Lattice

11 pp, 9 figures; talk presented at QCD-TNT, Trento, 7-11 sep 2009

Scientific paper

We compute gluon and quark propagators in 2-colour QCD at large baryon chemical potential mu. The gluon propagator is found to be antiscreened in the superfluid, confined phase and screened in the large-mu, deconfined phase. We present the first attempt to determine corresponding electric and magnetic gluon masses. The quark propagator undergoes dramatic modifications in the superfluid region as a result of the formation of a superfluid gap. These modifications include the appearance of zero crossings in the vector part of the (normal) quark propagator, a large suppression of the scalar part, and the emergence of anomalous propagation.

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