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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/12483

(pi)K scattering in full QCD with domain-wall valence quarks.

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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.

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BEANE, Silas r., BEDAQUE, Paulo f., LUU, Thomas c., ORGINOS, Kostas, PALLANTE, Elisabetta, PARREÑO GARCÍA, Assumpta, SAVAGE, Martin j.. (pi)K scattering in full QCD with domain-wall valence quarks.. _Physical Review 2006_. vol. 74. Vol. 11, núm. 114503-1-114503-9. [consulta: 21 de gener de 2026]. ISSN: 0556-2821. [Disponible a: https://hdl.handle.net/2445/12483]

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