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arXiv · 2505.03182

Multi-nucleon matrix elements on the lattice with the Feynman-Hellmann theorem

N. Humphrey·K. U. Can·R. Horsley·P. E. L. Rakow·G. Schierholz·H. Stüben·R. D. Young·J. M. Zanotti
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Abstract

This work presents the first calculation of the lowest moment of the forward Compton structure function $\mathcal{F}_2$ for a multi-nucleon deuteron-like state using Feynman-Hellmann lattice QCD techniques. Using this result as a prototypical example, we chart a course for the systematic study of multi-nucleon structure by building on techniques developed to optimise the computation of the factorially increasing number of Wick contraction terms required to calculate multi-nucleon matrix elements via lattice QCD.

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N. Humphrey, K. U. Can, R. Horsley, P. E. L. Rakow, G. Schierholz, H. Stüben, R. D. Young, J. M. Zanotti. 2025-05-06. Multi-nucleon matrix elements on the lattice with the Feynman-Hellmann theorem. https://arxiv.org/abs/2505.03182

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