{"paper":{"title":"Measurement of the branching fractions and lifetime of the $5D_{5/2}$ level of Ba$^+$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"Boris B. Blinov, Carolyn Auchter, Matthew R. Hoffman, Spencer R. Williams, Thomas W. Noel","submitted_at":"2014-09-02T20:14:23Z","abstract_excerpt":"We present a measurement of the branching fractions for decay from the long-lived $5D_{5/2}$ level in \\Ba. The branching fraction for decay into the $6S_{1/2}$ ground state was found to be $0.846(25)_{\\mathrm{stat}}(4)_{\\mathrm{sys}}$. We also report an improved measurement of the $5D_{5/2}$ lifetime, $\\tau_{5D_{5/2}}=31.2(0.9)$~s. Together these measurements provide the first experimental determination of transition rates for decay out of the $5D_{5/2}$ level. The low ($<7 \\times 10^{-12}$~Torr) pressure in the ion trap in which these measurements were made simplified data acquisition and ana"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.0873","kind":"arxiv","version":2},"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"}