{"paper":{"title":"Cosmic-Ray Positrons: Are There Primary Sources?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Allan Labrador, Amit Bhattacharyya, Andrew D. Tomasch, Christopher J. Chaput, Chuck R. Bower, Dietrich Muller, Eric Schneider, Eric Torbet, Georgia A. de Nolfo, Gregory Tarle, James A. Musser, James J. Beatty, Michael A. DuVernois, Scott L. Nutter, Shawn P. McKee, Simon P. Swordy, Stephane Coutu, Steven W. Barwick","submitted_at":"1999-02-10T19:40:17Z","abstract_excerpt":"Cosmic rays at the Earth include a secondary component originating in collisions of primary particles with the diffuse interstellar gas. The secondary cosmic rays are relatively rare but carry important information on the Galactic propagation of the primary particles. The secondary component includes a small fraction of antimatter particles, positrons and antiprotons. In addition, positrons and antiprotons may also come from unusual sources and possibly provide insight into new physics. For instance, the annihilation of heavy supersymmetric dark matter particles within the Galactic halo could "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9902162","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"}