Strange matrix elements of the nucleon
Randy Lewis, W. Wilcox, R.M. Woloshyn
TL;DR
This paper presents calculations of disconnected matrix elements of the nucleon using lattice QCD techniques, focusing on vector and scalar operators with stochastic estimators.
Contribution
It introduces new lattice QCD results for nucleon matrix elements using stochastic estimators and discusses analysis methods and chiral extrapolations.
Findings
Disconnected contributions to nucleon matrix elements measured
Chiral extrapolations discussed and analyzed
Results obtained at beta=6 with quenched configurations
Abstract
Results for the disconnected contributions to matrix elements of the vector current and scalar density have been obtained for the nucleon from the Wilson action at beta=6 using a stochastic estimator technique and 2000 quenched configurations. Various methods for analysis are employed and chiral extrapolations are discussed.
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