Determining the low energy parameters of Wilson Chiral Perturbation Theory

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dc.creatorAoki, Sinya
dc.creatorBar, Oliver
dc.date2005-09-01
dc.date2005-09-08
dc.date.accessioned2026-07-07T06:23:33Z
dc.date.available2026-07-07T06:23:33Z
dc.descriptionWe report preliminary results of a Wilson Chiral Perturbation Theory (WChPT) analysis of twisted mass lattice QCD data. The quenched data, previously published by two different groups, was generated with two definitions for the critical quark mass and shows a strong non-linear quark mass dependence for small quark masses for the pion mass definition (``bending phenomenon''). We find that WChPT describes this characteristic curvature fairly well. Fits to the data provide estimates for combinations of low-energy parameters, even though the errors are sizable.
dc.description6 pages, 5 figures. Talk presented at Lattice2005(spectrum), Dublin, July 25-30, 2005. v2: One reference added
dc.identifierhttps://arxiv.org/abs/hep-lat/0509002
dc.identifierhttp://arxiv.org/abs/hep-lat/0509002
dc.identifierPoS LAT2005 (2005) 046
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96268
dc.subjectHigh Energy Physics - Lattice
dc.titleDetermining the low energy parameters of Wilson Chiral Perturbation Theory
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