{"paper":{"title":"Measurement of Z$^0$-boson production at large rapidities in Pb-Pb collisions at $\\sqrt{s_{\\rm NN}}=5.02$ TeV","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"nucl-ex","authors_text":"ALICE Collaboration","submitted_at":"2017-11-29T10:12:27Z","abstract_excerpt":"The production of Z$^0$ bosons at large rapidities in Pb-Pb collisions at $\\sqrt{s_{\\rm NN}}=5.02$ TeV is reported. Z$^0$ candidates are reconstructed in the dimuon decay channel (${\\rm Z}^0 \\rightarrow \\mu^+\\mu^-$), based on muons selected with pseudo-rapidity $-4.0<\\eta<-2.5$ and $p_{\\rm T}>20$ GeV/$c$. The invariant yield and the nuclear modification factor, $R_{\\rm AA}$, are presented as a function of rapidity and collision centrality. The value of $R_{\\rm AA}$ for the 0-20% central Pb-Pb collisions is $0.67 \\pm 0.11 \\, \\mbox{(stat.)} \\, \\pm 0.03 \\, \\mbox{(syst.)} \\, \\pm 0.06 \\, \\mbox{(cor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.10753","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"}