{"paper":{"title":"Measurement of the differential cross sections for isolated direct photon pair production in $p \\bar p$ collisions at $\\sqrt{s} = 1.96$ TeV","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"D0 Collaboration","submitted_at":"2013-01-19T07:30:10Z","abstract_excerpt":"We present measurements of direct photon pair production cross sections using 8.5 fb$^{-1}$ of data collected with the D0 detector at the Fermilab Tevatron $p \\bar p$ collider. The results are presented as differential distributions of the photon pair invariant mass $d\\sigma/dM_{\\gamma \\gamma}$, pair transverse momentum $d \\sigma /dp^{\\gamma \\gamma}_T$, azimuthal angle between the photons $d\\sigma/d\\Delta \\phi_{\\gamma \\gamma}$, and polar scattering angle in the Collins-Soper frame $d\\sigma /d|\\cos \\theta^*|$. Measurements are performed for isolated photons with transverse momenta $p^{\\gamma}_T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.4536","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"}