{"paper":{"title":"Reconstructing generalised parton distributions from the lattice off-forward Compton amplitude","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ph","nucl-th"],"primary_cat":"hep-lat","authors_text":"A. Hannaford-Gunn, G. Schierholz, H. St\\\"uben, J. A. Crawford, J. M. Zanotti, K. U. Can, P. E. L. Rakow, R. D. Young, R. Horsley","submitted_at":"2024-05-10T05:52:19Z","abstract_excerpt":"We present a determination of the structure functions of the off-forward Compton amplitude $\\mathcal{H}_1$ and $\\mathcal{E}_1$ from the Feynman-Hellmann method in lattice QCD. At leading twist, these structure functions give access to the generalised parton distributions (GPDs) $H$ and $E$, respectively. This calculation is performed for an unphysical pion mass of $m_{\\pi}=412\\;\\text{MeV}$ and four values of the soft momentum transfer, $t\\approx 0, -0.3, -0.6, -1.1\\;\\text{GeV}^2$, all at a hard momentum scale of $\\bar{Q}^2\\approx 5\\;\\text{GeV}^2$. Using these results, we test various methods t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.06256","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2405.06256/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}