{"paper":{"title":"Analysis of a Tau Neutrino Origin for the Near-Horizon Air Shower Events Observed by the Fourth Flight of the Antarctic Impulsive Transient Antenna (ANITA)","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"astro-ph.HE","authors_text":"A. B. Ludwig, A. Connolly, A. G. Vieregg, A. Novikov, A. Romero-Wolf, A. Zeolla, B. Dailey, B. D. Fox, B. F. Rauch, B. Hill, B. Rotter, B. Strutt, C. Burch, C. Deaconu, C. Hast, C. H. Chen, C. Miki, C. Naudet, D. Saltzberg, D. Seckel, D. Z. Besson, E. Oberla, E. Zas, G. S. Varner, H. Schoorlemmer, J. Alvarez-Mu\\~niz, J. J. Beatty, J. J. Huang, J. M. Clem, J. M. Roberts, J. Nam, J. Ripa, J. Shiao, J. Stockham, J. W. H. Gordon, J. W. Russell, K. Belov, K. Hughes, K. McBride, K. M. Liewer, K. Mulrey, L. Batten, L. Cremonesi, L. Macchiarulo, M. H. Israel, M. S. Sutherland, M. Stockham, N. Wang, O. Banerjee, P. Allison, P. Cao, P. Chen, P. F. Dowkontt, P. W. Gorham, R. Hupe, R. J. Nichol, R. Prechelt, S. A. Wissel, S. H. Wang, S. Matsuno, S. Prohira, S. Stafford, S. Y. Hsu, T. C. Liu, V. Bugaev, W. Carvalho Jr., W. R. Binns, Y. Chen","submitted_at":"2021-12-14T00:06:46Z","abstract_excerpt":"We study in detail the sensitivity of the Antarctic Impulsive Transient Antenna (ANITA) to possible $\\nu_\\tau$ point source fluxes detected via $\\tau$-lepton-induced air showers. This investigation is framed around the observation of four upward-going extensive air shower events very close to the horizon seen in ANITA-IV. We find that these four upgoing events are not observationally inconsistent with $\\tau$-induced EASs from Earth-skimming $\\nu_\\tau$, both in their spectral properties as well as in their observed locations on the sky. These four events, as well as the overall diffuse and poin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.07069","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2112.07069/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}