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arXiv · 1812.10574

Systematics in nucleon matrix element calculations

Jeremy Green
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Abstract

The current status of calculations of simple nucleon structure observables is reviewed, with a focus on the axial charge. A major challenge is the combination of an exponentially decaying signal-to-noise ratio and the need for large source-sink separations to eliminate excited-state contributions; efforts to understand and deal with this problem are the focus of the largest section of this review. Finite-volume effects and chiral extrapolation are also briefly discussed.

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Jeremy Green. 2018-12-26. Systematics in nucleon matrix element calculations. https://arxiv.org/abs/1812.10574

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