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Passing through the `chiral limit' in quenched QCD with Wilson fermions

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Publication:5961257

DOI10.1016/S0920-5632(99)85032-4zbMATH Open1051.81664arXivhep-lat/9811022OpenAlexW3099692103MaRDI QIDQ5961257

Author name not available (Why is that?)

Publication date: 24 April 2002

Published in: (Search for Journal in Brave)

Abstract: We investigate the limit of vanishing quark mass in quenched lattice QCD with unimproved Wilson fermions at . Exploiting the correlations of propagators at different time slices we extract pion masses extremely close to the `chiral limit', despite the presence of `exceptional configurations'. With this at hand, the existence of quenched chiral logarithms can be demonstrated, provided, finite size effects are small. With reference to the phase diagram proposed by Aoki also the range kappa>kappac is investigated. The width of a potential parity-flavor violating phase can, if at all, hardly be resolved.


Full work available at URL: https://arxiv.org/abs/hep-lat/9811022



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