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Random Matrix Models for the Hermitian Wilson-Dirac operator of QCD-like theories

High Energy Physics - Lattice 2013-03-14 v1 High Energy Physics - Phenomenology High Energy Physics - Theory Mathematical Physics math.MP

Abstract

We introduce Random Matrix Models for the Hermitian Wilson-Dirac operator of QCD-like theories. We show that they are equivalent to the ϵ\epsilon-limit of the chiral Lagrangian for Wilson chiral perturbation theory. Results are obtained for two-color QCD with quarks in the fundamental representation of the color group as well as any-color QCD with quarks in the adjoint representation. For Nc=2N_c=2 we also have obtained the lattice spacing dependence of the quenched average spectral density for a fixed value of the index of the Dirac operator. Comparisons with direct numerical simulations of the random matrix ensemble are shown.

Keywords

Cite

@article{arxiv.1303.3242,
  title  = {Random Matrix Models for the Hermitian Wilson-Dirac operator of QCD-like theories},
  author = {Mario Kieburg and Jacobus J. M. Verbaarschot and Savvas Zafeiropoulos},
  journal= {arXiv preprint arXiv:1303.3242},
  year   = {2013}
}

Comments

Figures 3 and 4 changed with respect to the published version