{"paper":{"title":"Measurement of Z gamma Production in pbar{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":"CDF Collaboration, et al, T. Aaltonen","submitted_at":"2010-04-07T17:26:04Z","abstract_excerpt":"The production rate and kinematics of photons produced in association with Z bosons are studied using 2/fb of p\\bar{p} collision data collected at the Collider Detector at Fermilab.  The cross section for p\\bar{p} -> l^+ l^- gamma + X (where the leptons l are either muons or electrons with dilepton mass  M_{ll} > 40 GeV/c^2, and where the photon has transverse energy Et_{gamma} > 7 GeV and is well separated from the leptons) is 4.6 +/- 0.2 (stat)  +/- 0.3 (syst)  +/- 0.3 (lum) pb, which is consistent with standard model expectations.  We use the photon Et distribution from Z-gamma events where"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.1140","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"}