K+K+scattering length from lattice QCD

2007/09/07 by Silas Beane, Silas R. Beane, Thomas Luu +8 · 4 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.77.094507

published as Phys.Rev.D77:094507,2008 · 17 pages, 12 figures. NPLQCD collaboration

arxiv created 2007/09/07 · openalex publication_date 2008/05/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01

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⁺=\ensuremath-0.352\ifmmode±\else\textpm\fi0.016, where the statistical and systematic errors have been combined in quadrature.

Citations

• The Gell-Mann–Okubo mass relation among baryons from fully-dynamical mixed-action lattice QCD
• The Chroma Software System for Lattice QCD

Cited by

• Hadrons in strong electric and magnetic fields
• Low Energy Continuum and Lattice Effective Field Theories
• Meson-baryon scattering lengths from mixed-action lattice QCD
• Strange and nonstrange quark mass dependence of elastic light resonances from SU(3) unitarized chiral perturbation theory to one loop