{"paper":{"title":"First measurement of A = 4 (anti)hypernuclei at the LHC","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"nucl-ex","authors_text":"ALICE Collaboration","submitted_at":"2024-10-23T11:17:29Z","abstract_excerpt":"In this Letter, the first evidence of the $^4_{\\bar{\\Lambda}}\\overline{\\rm He}$ antihypernucleus is presented, along with the first measurement at the LHC of the production of (anti)hypernuclei with mass number $A=4$, specifically (anti)$^4_{\\Lambda}\\mathrm{H}$ and (anti)$^4_{\\Lambda}\\mathrm{He}$. In addition, the antiparticle-to-particle ratios for both hypernuclei ($^4_{\\bar{\\Lambda}}\\overline{\\rm H}$ / $^4_{\\Lambda}\\mathrm{H}$ and $^4_{\\bar{\\Lambda}}\\overline{\\rm He}$ / $^4_{\\Lambda}\\mathrm{He}$) are shown, which are sensitive to the baryochemical potential of the strongly-interacting matte"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.17769","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2410.17769/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}