R. Burkhalter

Kaon B-parameter from quenched domain-wall QCD

We present numerical results for the kaon B-parameter, B{sub K}, determined in the quenched approximation of lattice QCD. Our simulations are performed using domain-wall fermions and the renormalization group improved, DBW2 gauge action which combine to give quarks with good chiral symmetry at finite lattice spacing. Operators are renormalized nonperturbatively using the RI/MOM scheme. We study scaling by performing the simulation on two different lattices with a{sup -1}=1.982(30) and 2.914(54) GeV. We combine this quenched scaling study with an earlier calculation of B{sub K} using two flavors of dynamical, domain-wall quarks at a single lattice spacing to obtain B{sub K}{sup MSNDR}({mu}=2 GeV)=0.563(21)(39)(30), were the first error is statistical, the second systematic (without quenching errors) and the third estimates the error due to quenching.

Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks

We present the results of a first study of the equation of state in finite-temperature QCD with two flavors of Wilson-type quarks. The simulations are made on lattices with a temporal size

Decay constants of B and D mesons from improved relativistic lattice QCD with two flavors of sea quarks

{N}_{t}=4

B meson decay constants from two-flavor lattice QCD with nonrelativistic heavy quarks

and 6, using a renormalization-group-improved action for the gluon sector and a mean-field-improved clover action for the quark sector. The lines of constant physics corresponding to fixed values of the ratio

Performance of lattice QCD programs on CP-PACS

{m}_{mathrm{PS}}{/m}_{mathrm{V}}

Recent results from the CP-PACS collaboration

of the pseudoscalar to vector meson masses at zero temperature are determined, and the beta functions which describe the renormalization-group flow along these lines are calculated. Using these results, the energy density and the pressure are calculated as functions of temperature along the lines of constant physics in the range

Topological susceptibility in lattice QCD with two flavors of dynamical quarks

{m}_{mathrm{PS}}{/m}_{mathrm{V}}=0.65char21{}0.95.

Hybrid quarkonia with dynamical sea quarks

The quark mass dependence in the equation of state is found to be small for

Full QCD light hadron spectrum from the CP-PACS

{m}_{mathrm{PS}}{/m}_{mathrm{V}}ensuremath{lesssim}0.8.

Light hadron spectrum and quark masses in QCD with two flavors of dynamical quarks

A comparison of the results for