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Precise determination of the I=2 ππ scattering length from mixed-action lattice QCD

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dc.contributor.authorBeane, Silas R.
dc.contributor.authorLuu, Thomas C.
dc.contributor.authorOrginos, Kostas
dc.contributor.authorParreño García, Assumpta
dc.contributor.authorSavage, Martin J.
dc.contributor.authorTorok, Aaron
dc.contributor.authorWalker-Loud, André
dc.contributor.authorNPLQCD Collaboration
dc.date.accessioned2019-04-05T14:10:02Z
dc.date.available2019-04-05T14:10:02Z
dc.date.issued2008-01-14
dc.date.updated2019-04-05T14:10:03Z
dc.description.abstractThe I = 2 π π scattering length is calculated in fully dynamical lattice QCD with domain-wall valence quarks on the asqtad-improved coarse MILC configurations (with fourth-rooted staggered sea quarks) at four light-quark masses. Two- and three-flavor mixed-action chiral perturbation theory at next-to-leading order is used to perform the chiral and continuum extrapolations. At the physical charged pion mass, we find m π a I = 2 π π = − 0.043   30 ± 0.000   42 , where the error bar combines the statistical and systematic uncertainties in quadrature.
dc.format.extent12 p.
dc.format.mimetypeapplication/pdf
dc.identifier.idgrec588643
dc.identifier.issn1550-7998
dc.identifier.urihttps://hdl.handle.net/2445/131685
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1103/PhysRevD.77.014505
dc.relation.ispartofPhysical Review D, 2008, vol. 77, num. 1, p. 014505
dc.relation.urihttps://doi.org/10.1103/PhysRevD.77.014505
dc.rights(c) American Physical Society, 2008
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)
dc.subject.classificationFísica de partícules
dc.subject.classificationInteraccions d'hadrons
dc.subject.otherParticle physics
dc.subject.otherHadron interactions
dc.titlePrecise determination of the I=2 ππ scattering length from mixed-action lattice QCD
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion

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