{"paper":{"title":"Nucleon axial coupling from Lattice QCD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-lat","authors_text":"Amy Nicholson, Andre Walker-Loud, Balint Joo, Chia Cheng Chang, Chris Bouchard, Chris Monahan, David Brantley, Enrico Rinaldi, Evan Berkowitz, Henry Monge-Camacho, Kostas Orginos, M.A. Clark, Nicolas Garron, Pavlos Vranas, Thorsten Kurth","submitted_at":"2017-10-17T23:10:26Z","abstract_excerpt":"We present state-of-the-art results from a lattice QCD calculation of the nucleon axial coupling, $g_A$, using M\\\"obius Domain-Wall fermions solved on the dynamical $N_f = 2 + 1 + 1$ HISQ ensembles after they are smeared using the gradient-flow algorithm. Relevant three-point correlation functions are calculated using a method inspired by the Feynman-Hellmann theorem, and demonstrate significant improvement in signal for fixed stochastic samples. The calculation is performed at five pion masses of $m_\\pi\\sim \\{400, 350, 310, 220, 130\\}$~MeV, three lattice spacings of $a\\sim\\{0.15, 0.12, 0.09\\}"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.06523","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"}