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- Leopold Grinberg, D. Pekurovsky, Spencer J. Sherwin, George E. Karniadakis
- Parallel Computing
- 2009

- D Pekurovsky, G Kilcup
- 1998

We present our latest results for the ∆I = 1/2 rule, obtained on quenched ensembles with β = 6.0 and 6.2, and a set of Nf = 2 configurations with β = 5.7. The statistical noise is quite under control. We observe an enhancement of the ∆I = 1/2 amplitude consistent with experiment, although the systematic errors are still large. We also present a… (More)

- D Pekurovsky, G Kilcup
- 1997

An important contribution of Lattice QCD to phenomenology is a first-principle calculation of non-perturbative matrix elements (ME’s) of weak operators involving light hadrons. Knowledge of these ME’s combined with experimental data translates directly to constraints on CKM matrix elements, and thus enables another test of the Minimal Standard Model. In… (More)

The BK parameter serves to parameterize the weak hadronic matrix element responsible for K − K̄0 mixing. Since this mixing gives us the only CP violation observed to date, BK is a crucial link between the measured quantity ǫ and the parameters of the Standard Model. Lattice calculations are well suited for the study of BK parameter, and it has by now… (More)

- D Pekurovsky, G Kilcup
- 1998

We perform a study of matrix elements relevant for the ∆I = 1/2 rule and the direct CP-violation parameter ε′/ε from first principles by computer simulation in Lattice QCD. We use staggered (Kogut-Susskind) fermions, and employ the chiral perturbation theory method for studying K0 → ππ decays. Having obtained a reasonable statistical accuracy, we observe an… (More)

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