103,983 research outputs found
Light quark masses from Domain Wall Fermions
We present results for the renormalised light and strange quark masses
calculated using Domain Wall Fermions in quenched QCD. New results using the
DBW2 gauge action at inverse lattice spacings of approximately 2 GeV and 1.3
GeV will be presented and compared against existing results at 2 GeV using the
Wilson gauge action. This comparison allows a study of the uncertainties due to
both finite lattice spacing and residual chiral symmetry breaking effects.Comment: Lattice2002(spectrum), 3 pages, 4 figures. Added referenc
Calculation of CP Violation in Non-leptonic Kaon Decay on the Lattice
We give a progress report of our lattice calculation of direct and indirect
CP violation in kaon decays, parametrized as and ,
which require non-perturbative calculation of the matrix elements of the
Standard Model effective Hamiltonian.Comment: Talk presented at CIPANP2003, New York City, May 19-24, 2003, 4
pages, 5 eps figure
Hadronic matrix elements of proton decay on the lattice
We report on our on-going project to calculate proton decay matrix elements
using domain-wall fermions on the lattice. By summarizing the history of the
proton decay calculation on the lattice, we reveal the systematic errors of
those calculations. Then we discuss our approach to tackle those uncertainties
and show our preliminary results on the matrix elements.Comment: 4 pages, 2 figures, talk presented at CIPANP2003: Conference on the
Intersections of Particle and Nuclear Physics, New York City, May 19-24, 200
Nucleon Decay Matrix Elements for Domain-Wall Fermions
We report on the nucleon decay matrix elements with domain-wall fermions in
quenched approximation. Results from direct and indirect method are compared
with a focus on the process of a proton decaying to a pion and a lepton. We
discuss the renormalization necessary for the matching to the continuum theory.
Preliminary results for the renormalized chiral lagrangian parameters are
presented.Comment: Lattice2002(matrixel), 3 pages, 1 figur
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