K.-I. Ishikawa

ρ meson decay in 2+1 flavor lattice QCD

(PACS-CS Collaboration) 1 Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan 2 Center for Computational Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan 3 Department of Physics, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan 4 RIKEN Advanced Institute for Computational Science, Kobe, Hyogo 650-0047, Japan 5 Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya, Aichi 464-8602, Japan (Dated: November 28, 2011)

Nucleon decay matrix elements from lattice QCD

We present a model-independent calculation of hadron matrix elements for all dimension-six operators associated with baryon number violating processes using lattice QCD. The calculation is performed with the Wilson quark action in the quenched approximation at

Charmonium spectrum from quenched anisotropic lattice QCD.

\beta=6/g^2=6.0

Lattice QCD calculation of the ρ meson decay width

on a

I=2 pion scattering length from two-pion wave functions

28^2\times 48\times 80

Light-quark masses from unquenched lattice QCD

lattice. Our results cover all the matrix elements required to estimate the partial lifetimes of (proton,neutron)

Charm quark system at the physical point of 2+1 flavor lattice QCD

\to

1+1+1 flavor QCD + QED simulation at the physical point

(

I=2 pion scattering phase shift with Wilson fermions

\pi,K,\eta

Kaon semileptonic decay form-factors in two-flavor QCD

) +(