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Title: K+K+ scattering length from lattice QCD
Author: Beane, Silas R.
Luu, Thomas C.
Orginos, Kostas
Parreño García, Assumpta
Savage, Martin J.
Torok, Aaron
Walker-Loud, André
NPLQCD Collaboration
Keywords: Física de partícules
Particle physics
Issue Date: 21-May-2008
Publisher: American Physical Society
Abstract: The K + K + scattering length is calculated in fully-dynamical lattice QCD with domain-wall valence quarks on the MILC asqtad-improved gauge configurations with rooted-staggered sea quarks. Three-flavor mixed-action chiral perturbation theory at next-to-leading order, which includes the leading effects of the finite lattice spacing, is used to extrapolate the results of the lattice calculation to the physical value of m K + / f K + . We find m K + a K + K + = − 0.352 ± 0.016 , where the statistical and systematic errors have been combined in quadrature.
Note: Reproducció del document publicat a:
It is part of: Physical Review D, 2008, vol. 77, num. 9, p. 094507
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ISSN: 1550-7998
Appears in Collections:Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Física Quàntica i Astrofísica)

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