QCD, Symmetry Breaking and the Random Lattice

Details QCD, Symmetry Breaking and the Random Lattice QCD, Symmetry Breaking and the Random Lattice

2006-02-15

arxiv.org/abs/hep-lat/0602021v1

Nucl.Phys.Proc.Suppl.140:698-700,2005

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 3 figures, talk given at Lattice 2004 (Chiral Fermions)

Scientific paper

10.1016/j.nuclphysbps.2004.11.19

According to the Nielsen-Ninomiya No-Go theorem, the doubling of fermions on the lattice cannot be suppressed in a chiral theory. Whereas Wilson and staggered fermions suppress doublers with explicit breaking of chiral symmetry, the random lattice does so by spontaneous chiral symmetry breaking even in the free theory. I present results for meson masses, the chiral condensate and fermionic eigenvalues from simulations of quenched QCD on random lattices in four dimensions, focusing on chiral symmetry breaking.

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