{"paper":{"title":"Dispersion theory of nucleon Compton scattering and polarizabilities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Martin Schumacher, Michael D. Scadron","submitted_at":"2013-01-08T15:40:58Z","abstract_excerpt":"A status report on the topic Compton scattering and polarizabilities is presented with emphasis on the scalar t-channel as entering into dispersion theory. Precise values for the polarizabilities are obtained leading to $\\alpha_p = 12.0\\pm 0.6$ $(12.0)$, $\\beta_p=1.9\\mp 0.6$ $(1.9)$, $\\alpha_n= 12.5\\pm 1.7$ $(13.4)$, $\\beta_n= 2.7 \\mp 1.8$ $(1.8)$ in units of $10^{-4}$ fm$^3$ and $\\gamma^{(p)}_\\pi = -36.4 \\pm 1.5$ $(-36.6)$, $\\gamma^{(n)}_\\pi = 58.6 \\pm 4.0$ $(58.3)$, $(\\gamma^{(p)}_0= -0.58\\pm 0.20)$, $(\\gamma^{(n)}_0 = +0.38\\pm 0.22)$ in units of $10^{-4}$ fm$^4$, for the proton (p) and neut"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.1567","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"}