Pi-K Scattering in Full QCD with Domain-Wall Valence Quarks

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dc.creatorBeane, Silas R.
dc.creatorBedaque, Paulo F.
dc.creatorLuu, Thomas C.
dc.creatorOrginos, Kostas
dc.creatorPallante, Elisabetta
dc.creatorParreno, Assumpta
dc.creatorSavage, Martin J.
dc.date2006-07-26
dc.date.accessioned2026-07-07T10:24:45Z
dc.date.available2026-07-07T10:24:45Z
dc.descriptionWe 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.description14 pages, 9 figures
dc.identifierhttps://arxiv.org/abs/hep-lat/0607036
dc.identifierhttp://arxiv.org/abs/hep-lat/0607036
dc.identifierPhys.Rev.D74:114503,2006
dc.identifierdoi:10.1103/PhysRevD.74.114503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176299
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Phenomenology
dc.titlePi-K Scattering in Full QCD with Domain-Wall Valence Quarks
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