{"paper":{"title":"Observation of an anomalous positron abundance in the cosmic radiation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Bruno, A. Leonov, A. M. Galper, A. N. Kvashnin, A. Vacchi, D. Campana, E. A. Bogomolov, E. Mocchiutti, E. Vannuccini, F. Cafagna, G. A. Bazilevskaya, G. Castellini, G. C. Barbarino, G. De Rosa, G. Osteria, G. Vasilyev, G. Zampa, L. Bonechi, L. Grishantseva, L. Marcelli, M. Boezio, M. Bongi, M. Casolino, M. P. De Pascale, M. Pearce, M. Ricci, M. Simon, N. De Simone, N. Zampa, O. Adriani, P. Carlson, P. Hofverberg, P. Papini, P. Picozza, P. Spillantini, R. Bellotti, R. Sparvoli, S. A. Voronov, S. Bottai, S. B. Ricciarini, S. Orsi, S. V. Koldashov, S. Y. Krutkov, V. Bonvicini, V. Di Felice, V. G. Zverev, V. Malvezzi, V. V. Mikhailov, W. Menn, Y. I. Stozhkov, Y. T. Yurkin","submitted_at":"2008-10-28T09:32:34Z","abstract_excerpt":"Positrons are known to be produced in interactions between cosmic-ray nuclei and interstellar matter (\"secondary production\"). Positrons may, however, also be created by dark matter particle annihilations in the galactic halo or in the magnetospheres of near-by pulsars. The nature of dark matter is one of the most prominent open questions in science today. An observation of positrons from pulsars would open a new observation window on these sources. Here we present results from the PAMELA satellite experiment on the positron abundance in the cosmic radiation for the energy range 1.5 - 100 GeV."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.4995","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/0810.4995/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"}