{"paper":{"title":"High resolution spectroscopy of muonium","license":"","headline":"","cross_cats":["physics.acc-ph"],"primary_cat":"physics.atom-ph","authors_text":"((1)Physikalisches Institut, Germany), Heidelberg, K. Jungmann (1), Universitaet Heidelberg","submitted_at":"1998-05-14T12:53:33Z","abstract_excerpt":"The hydrogen-like muonium atom ($\\mu^+e^-$) consists of a positive muon ($\\mu^+$) and an electron ($e^-$). Since it was first observed by Hughes et al. in 1960, a series of precision experiments could be carried out testing bound state Quantum Electrodynamics (QED) and the nature of the muon as a point-like leptonic particle. Precision values for fundamental constants could be obtained, including the fine structure constant $\\alpha$ and the muon's magnetic moment $\\mu_{\\mu}$. Since no internal structure could be revealed for leptons down to dimensions of $10^{-18}$m, the accuracy of theoretica"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/9805019","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"}