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

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arxiv 2505.03182 v1 pith:ZRVRVGZI submitted 2025-05-06 hep-lat

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

classification hep-lat
keywords multi-nucleonlatticeelementsfeynman-hellmannmatrixstructuretechniquesbuilding
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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