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arXiv · hep-lat/9710050

Improving Stochastic Estimator Techniques for Disconnected Diagrams

J. Viehoff·N. Eicker·S. Guesken·H. Hoeber·P. Lacock·Th. Lippert·G. Ritzenhoefer·K. Schilling·A. Spitz·P. Ueberholz
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Abstract

Disconnected diagrams are expected to be sensitive to the inclusion of dynamical fermions. We present a feasibility study for the observation of such effects on the nucleonic matrix elements of the axial vector current, using SESAM full QCD vacuum configurations with Wilson fermions on $16^3\times 32$ lattices, at $β=5.6$. Starting from the standard methods developed by the Kentucky and Tsukuba groups, we investigate the improvement from various refinements thereof.

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J. Viehoff, N. Eicker, S. Guesken, H. Hoeber, P. Lacock, Th. Lippert, G. Ritzenhoefer, K. Schilling, A. Spitz, P. Ueberholz. 1997-10-16. Improving Stochastic Estimator Techniques for Disconnected Diagrams. https://doi.org/10.1016/s0920-5632(97)00742-1

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