Effects of the low lying Dirac modes on the spectrum of ground state mesons

Details Effects of the low lying Dirac modes on the spectrum of ground state mesons Effects of the low lying Dirac modes on the spectrum of ground state mesons

2011-10-27

arxiv.org/abs/1110.6149v2

PoS (Lattice 2011) 111

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 5 figures. Talk presented at the XXIX International Symposium on Lattice Field Theory, LATTICE 2011, July 2011, Squaw

Scientific paper

The lowest eigenmodes of the Dirac operator are related to the dynamical breaking of the chiral symmetry in Quantum Chromodynamics (QCD). In our work we construct quark propagators which exclude a varying number of the lowest Dirac eigenmodes and study the influence thereof on meson correlators and the meson spectrum. That procedure partially restores the chiral symmetry (in the valence sector) and we observe degeneracies in the spectrum while confinement seems not to be affected.

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