Pions in Lattice QCD with the Overlap Fermions at Strong Gauge Coupling

dc.creatorIchinose, Ikuo
dc.creatorNagao, Keiichi
dc.date2000-01-27
dc.date.accessioned2026-07-07T03:38:16Z
dc.date.available2026-07-07T03:38:16Z
dc.descriptionIn the previous paper we developed a strong-coupling expansion for the lattice QCD with the overlap fermions and showed that Lüsher's "extended" chiral symmetry is spontaneously broken in some parameter region of the overlap fermions. In this paper, we obtain a low-energy effective action and show that there exist quasi-Nambu-Goldsone bosons which are identified as the pions. The pion field is a {\em nonlocal} composite field of quark and anti-quark even at the strong-coupling limit because of the nonlocality of the overlap fermion formalism and Lüsher's chiral symmetry. The pions become massless in the limit of the vanishing bare-quark mass as it is desired.
dc.descriptionLatex 11 pages
dc.identifierhttps://arxiv.org/abs/hep-lat/0001030
dc.identifierhttp://arxiv.org/abs/hep-lat/0001030
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/38463
dc.subjectHigh Energy Physics - Lattice
dc.titlePions in Lattice QCD with the Overlap Fermions at Strong Gauge Coupling
dc.typetext

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