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http://hdl.handle.net/2445/131706
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DC Field | Value | Language |
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dc.contributor.author | Torok, Aaron | - |
dc.contributor.author | Beane, Silas R. | - |
dc.contributor.author | Detmold, William | - |
dc.contributor.author | Luu, Thomas C. | - |
dc.contributor.author | Orginos, Kostas | - |
dc.contributor.author | Parreño García, Assumpta | - |
dc.contributor.author | Savage, Martin J. | - |
dc.contributor.author | Walker-Loud, André | - |
dc.contributor.author | NPLQCD Collaboration | - |
dc.date.accessioned | 2019-04-08T08:25:56Z | - |
dc.date.available | 2019-04-08T08:25:56Z | - |
dc.date.issued | 2010-04-26 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131706 | - |
dc.description.abstract | The π + Σ + , π + Ξ 0 , K + p , K + n , and ¯¯¯¯ K 0 Ξ 0 scattering lengths are calculated in mixed-action Lattice QCD with domain-wall valence quarks on the asqtad-improved coarse MILC configurations at four light-quark masses, and at two light-quark masses on the fine MILC configurations. Heavy-baryon chiral perturbation theory with two and three flavors of light quarks is used to perform the chiral extrapolations. To the order we work in the three-flavor chiral expansion, the kaon-baryon processes that we investigate show no signs of convergence. Using the two-flavor chiral expansion for extrapolation, the pion-hyperon scattering lengths are found to be a π + Σ + = − 0.197 ± 0.017 fm , and a π + Ξ 0 = − 0.098 ± 0.017 fm , where the comprehensive error includes statistical and systematic uncertainties. | - |
dc.format.extent | 18 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.81.074506 | - |
dc.relation.ispartof | Physical Review D, 2010, vol. 81, num. 7, p. 074506 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.81.074506 | - |
dc.rights | (c) American Physical Society, 2010 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.title | Meson-baryon scattering lengths from mixed-action lattice QCD | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 588651 | - |
dc.date.updated | 2019-04-08T08:25:57Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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588651.pdf | 966.26 kB | Adobe PDF | View/Open |
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