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000636200 088__ $$2arXiv$$aarXiv:2508.09006
000636200 1001_ $$0P:(DE-H253)PIP1102744$$aBarca, Lorenzo$$b0$$eCorresponding author$$udesy
000636200 245__ $$aCurrent-Enhanced Excited States in Lattice QCD Three-Point Functions
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000636200 520__ $$aExcited-state contamination remains one of the leading sources of systematic uncertainty in the precise determination of hadron structure observables from lattice QCD. In this letter, we present a general argument, inspired by current-meson dominance and implemented through the variational method, to identify which excited states are enhanced by the choice of the inserted current and kinematics. The argument is supported by numerical evidence across multiple hadronic channels and provides both a conceptual understanding and practical guidance to account for excited-state effects in hadron three-point function analyses.
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000636200 536__ $$0G:(GEPRIS)448374536$$aDFG project 448374536 - Fortschritte bei einer präzisen ab initio Bestimmung der Partonen-Struktur von Hadronen (448374536)$$c448374536$$x2
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