{"paper":{"title":"$nd$ Scattering and the $A_y$ Puzzle to Next-to-next-to-next-to-leading Order","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Arman Margaryan, Jared Vanasse, Roxanne P. Springer","submitted_at":"2015-12-11T19:54:23Z","abstract_excerpt":"Polarization observables in neutron-deuteron scattering are calculated to next-to-next-to-next-to-leading order ($\\mathrm{N}^{3}\\mathrm{LO}$) in pionless effective field theory ($\\mathrm{EFT}_{\\not{\\pi}}$). At $\\mathrm{N}^{3}\\mathrm{LO}$ the two-body $P$-wave contact interactions are found to be important contributions to the neutron vector analyzing power, $A_{y}(\\theta)$, and the deuteron vector analyzing power, $iT_{11}(\\theta)$. Extracting the two-body $P$-wave $\\mathrm{EFT}_{\\not{\\pi}}$ coefficients from two-body scattering data and varying them within the expected $\\mathrm{EFT}_{\\not{\\pi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.03774","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":""},"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"}