{"paper":{"title":"Precise Measurement of the Absolute Yield of Fluorescence Photons in Atmospheric Gases","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.IM","authors_text":"AIRFLY Collaboration: M. Ave, A. Ulrich, B. Keilhauer, B. Rouill\\'e d'Orfeuil, C. Di Giulio, C. Hojvat, C. Williams, D. Gonzales, F. Kuehn, F. Salamida, H. Klages, H. Spinka, J. R. H\\\"orandel, J. Ridky, K. Daumiller, L. No\\v{z}ka, M. Boh\\'a\\v{c}ov\\'a, M. Hrabovsk\\'y, M. Iarlori, M. Kleifges, M. Monasor, M. Palatka, P. Di Carlo, P. Facal San Luis, P. Privitera, P. Schov\\'anek, R. \\v{S}mida, S. Petrera, V. Rizi, V. Verzi","submitted_at":"2011-01-19T23:45:20Z","abstract_excerpt":"We have performed a measurement of the absolute yield of fluorescence photons at the Fermilab Test Beam. A systematic uncertainty at 5% level was achieved by the use of Cherenkov radiation as a reference calibration light source. A cross-check was performed by an independent calibration using a laser light source. A significant improvement on the energy scale uncertainty of Ultra-High Energy Cosmic Rays is expected."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.3799","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"}