(pi)K scattering in full QCD with domain-wall valence quarks.
| dc.contributor.author | Beane, Silas R. | cat |
| dc.contributor.author | Bedaque, Paulo F. | cat |
| dc.contributor.author | Luu, Thomas C. | cat |
| dc.contributor.author | Orginos, Kostas | cat |
| dc.contributor.author | Pallante, Elisabetta | cat |
| dc.contributor.author | Parreño García, Assumpta | cat |
| dc.contributor.author | Savage, Martin J. | cat |
| dc.date.accessioned | 2010-05-06T12:11:03Z | |
| dc.date.available | 2010-05-06T12:11:03Z | |
| dc.date.issued | 2006 | cat |
| dc.description.abstract | We calculate the pi+ K+ scattering length in fully-dynamical lattice QCD with domain-wall valence quarks on MILC lattices with rooted staggered sea-quarks at a lattice spacing of b=0.125 fm, lattice spatial size of L =2.5 fm and at pion masses of m_pi=290, 350, 490 and 600 MeV. The lattice data, analyzed at next-to-leading order in chiral perturbation theory, allows an extraction of the full pi K scattering amplitude at threshold. Extrapolating to the physical point gives m_pi a_3/2 = -0.0574 (+- 0.0016)(+0.0024 -0.0058) and m_pi a_1/2 = 0.1725 (+- 0.0017)(+0.0023 -0.0156) for the I=3/2 and I=1/2 scattering lengths, respectively, where the first error is statistical and the second error is an estimate of the systematic due to truncation of the chiral expansion. | |
| dc.format.extent | 9 p. | cat |
| dc.format.mimetype | application/pdf | eng |
| dc.identifier.idgrec | 542924 | cat |
| dc.identifier.issn | 0556-2821 | cat |
| dc.identifier.uri | https://hdl.handle.net/2445/12483 | |
| dc.language.iso | eng | eng |
| dc.publisher | The American Physical Society | eng |
| dc.relation.isformatof | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.74.114503 | cat |
| dc.relation.ispartof | Physical Review 2006, vol. 74, núm. 11, p. 114503-1-114503-9 | cat |
| dc.relation.uri | http://dx.doi.org/10.1103/PhysRevD.74.114503 | |
| dc.rights | (c) The American Physical Society, 2006 | eng |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | |
| dc.subject.classification | Partícules (Física nuclear) | cat |
| dc.subject.classification | Cromodinàmica quàntica | cat |
| dc.subject.other | Particles (Nuclear physics) | eng |
| dc.subject.other | Quantum chromodynamics | eng |
| dc.title | (pi)K scattering in full QCD with domain-wall valence quarks. | eng |
| dc.type | info:eu-repo/semantics/article | eng |
| dc.type | info:eu-repo/semantics/publishedVersion |
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