2007/02/28 by D. J. Antonio, P. A. Boyle, T. Blum +28 · 1 citation
Physics and Astronomy · #Fermion #High-Energy Particle Collisions Research #Mixing (physics) #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Strange quark #hep-lat #hep-ph
paper · pdf · doi:10.1103/physrevlett.100.032001
published as Phys.Rev.Lett.100:032001,2008 · 4 pages, 4 figures. RBC and UKQCD collaborations
arxiv created 2007/10/22 · openalex publication_date 2008/01/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present the first results for neutral-kaon mixing using (2+1)-flavors of domain-wall fermions. A new approach is used to extrapolate to the physical up and down quark masses from our numerical studies with pion masses in the range 240-420 MeV; only SU(2)LxSU(2)R chiral symmetry is assumed and the kaon is not assumed to be light. Our main result is BK;MS[over ](2 GeV)=0.524(10)(28) where the first error is statistical and the second incorporates estimates for all systematic errors.