{"paper":{"title":"Suppression of excited $\\Upsilon$ states relative to the ground state in PbPb collisions at $\\sqrt{s_\\mathrm{NN}}$ = 5.02 TeV","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"hep-ex","authors_text":"CMS Collaboration","submitted_at":"2017-06-19T14:24:31Z","abstract_excerpt":"The relative yields of $\\Upsilon$ mesons produced in pp and PbPb collisions at $\\sqrt{s_\\mathrm{NN}}$ = 5.02 TeV and reconstructed via the dimuon decay channel are measured using data collected by the CMS experiment. Double ratios are formed by comparing the yields of the excited states, $\\Upsilon$(2S) and $\\Upsilon$(3S), to the ground state, $\\Upsilon$(1S), in both PbPb and pp collisions at the same center-of-mass energy. The double ratios, [$\\Upsilon$(nS)/$\\Upsilon$(1S)]$_\\mathrm{PbPb}$ / [$\\Upsilon$(nS)/$\\Upsilon$(1S)]$_\\mathrm{pp}$, are measured to be 0.308 $\\pm$ 0.055 (stat) $\\pm$ 0.019 ("},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.05984","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"}