Ds0*(2317)Meson andD-Meson-Kaon Scattering from Lattice QCD

Charmed Meson Scattering from Lattice QCD

Kaon B parameter from quenched Lattice QCD

We present results of a large-scale simulation for the Kaon B parameter BK in quenched lattice QCD with the Kogut-Susskind quark action. Calculating BK at 1% statistical accuracy for seven values of lattice spacing in the range a ≈ 0.24 − 0.04 fm on lattices up to 563 × 96, we verify a quadratic a dependence of BK theoretically predicted. Strong indications are found that, with our level of acc...

Progress in Kaon Phenomenology from Lattice QCD

Kaon physics is an area in which lattice QCD can have an important impact in Phenomenology. I review the recent progress and current status of three particular topics: kaon beta-decay, the kaon B-parameter and the non-leptonic decay of the kaon into two pions.

The η ′ meson from lattice QCD

We study the flavour singlet pseudoscalar mesons from first principles using lattice QCD. With Nf = 2 flavours of light quark, this is the socalled η2 meson and we discuss the phenomenological status of this. Using maximally twisted-mass lattice QCD, we extract the mass of the η2 meson at two values of the lattice spacing for lighter quarks than previously discussed in the literature. We are ab...

Tetraquarks, hadronic molecules, meson-meson scattering, and disconnected contributions in lattice QCD

Feng-Kun Guo,* Liuming Liu, Ulf-G. Meißner, and Ping Wang Helmholtz-Institut für Strahlenund Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany Institut für Kernphysik, Institute for Advanced Simulation, and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany Institute of High Energy Physics and Theoretical Physics Center...