{"paper":{"title":"Search for eta_b in Two-Photon Events","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"Armin B\\\"ohrer","submitted_at":"2001-10-16T07:47:37Z","abstract_excerpt":"A search for the pseudoscalar meson eta_b was performed at LEP~II energies with an integrated luminosity of 700pb^-1. The search, done for the decay modes into 4 and 6 charged particles yielded 0 and 1 candidates, respectively. Upper limits on Gamma_gammagamma(eta_b)*BR for both modes of 57eV and 128eV were obtained with corresponding limits of 17% and 38% on branching ratios BR(eta_b) -> 4 charged particles and BR(eta_b) -> 6 charged particles at a confidence level of 95%. The candidate has a mass of 9.30 +- 0.04GeV."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0110030","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"}