{"paper":{"title":"Electron-positron pair production in ion collisions at low velocity beyond Born approximation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"physics.atom-ph","authors_text":"A.I. Milstein, R.N. Lee","submitted_at":"2016-07-19T09:05:22Z","abstract_excerpt":"We derive the spectrum and the total cross section of electromagnetic $e^{+}e^{-}$ pair production in the collisions of two nuclei at low relative velocity $\\beta$. Both free-free and bound-free $e^{+}e^{-}$ pair production is considered. The parameters $\\eta_{A,B}=Z_{A,B}\\alpha$ are assumed to be small compared to unity but arbitrary compared to $\\beta$ ($Z_{A,B}$ are the charge numbers of the nuclei and $\\alpha$ is the fine structure constant). Due to a suppression of the Born term by high power of $\\beta$, the first Coulomb correction to the amplitude appears to be important at $\\eta_{A,B}\\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.05470","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"}