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dc.contributor.author | Aoki, S. | en |
dc.contributor.author | Cossu, G. | en |
dc.contributor.author | Feng, X. | en |
dc.contributor.author | Fukaya, H. | en |
dc.contributor.author | Hashimoto, S. | en |
dc.contributor.author | Kaneko, T. | en |
dc.contributor.author | Noaki, J. | en |
dc.contributor.author | Onogi, T. | en |
dc.contributor.author | JLQCD Collaboration | en |
dc.contributor.alternative | 青木, 愼也 | ja |
dc.date.accessioned | 2020-04-14T23:54:06Z | - |
dc.date.available | 2020-04-14T23:54:06Z | - |
dc.date.issued | 2017-08-01 | - |
dc.identifier.issn | 2470-0010 | - |
dc.identifier.uri | http://hdl.handle.net/2433/250295 | - |
dc.description.abstract | We calculate the form factors of the K→πlν semileptonic decays in three-flavor lattice QCD and study their chiral behavior as a function of the momentum transfer and the Nambu-Goldstone boson masses. Chiral symmetry is exactly preserved by using the overlap quark action, which enables us to directly compare the lattice data with chiral perturbation theory (ChPT). We generate gauge ensembles at a lattice spacing of 0.11 fm with four pion masses covering 290–540 MeV and a strange quark mass ms close to its physical value. By using the all-to-all quark propagator, we calculate the vector and scalar form factors with high precision. Their dependence on ms and the momentum transfer is studied by using the reweighting technique and the twisted boundary conditions for the quark fields. We compare the results for the semileptonic form factors with ChPT at next-to-next-to-leading order in detail. While many low-energy constants appear at this order, we make use of our data of the light meson electromagnetic form factors in order to control the chiral extrapolation. We determine the normalization of the form factors as f+(0)=0.9636(36)(+57−35) and observe reasonable agreement of their shape with experiment. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society (APS) | en |
dc.rights | © 2017 American Physical Society | en |
dc.title | Chiral behavior of K→πlν decay form factors in lattice QCD with exact chiral symmetry | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | Physical Review D | en |
dc.identifier.volume | 96 | - |
dc.identifier.issue | 3 | - |
dc.relation.doi | 10.1103/PhysRevD.96.034501 | - |
dc.textversion | publisher | - |
dc.identifier.artnum | 034501 | - |
dcterms.accessRights | open access | - |
datacite.awardNumber | 25800147 | - |
datacite.awardNumber | 26400259 | - |
datacite.awardNumber | 16H03978 | - |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
出現コレクション: | 学術雑誌掲載論文等 |
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