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T: Fachverband Teilchenphysik
T 15: Searches/BSM I
T 15.7: Vortrag
Montag, 16. März 2026, 17:45–18:00, KH 02.018
Search for Semivisible Jets with CMS Run 2 Scouting Data — •Marcel Gaisdörfer1, Jonas Janik1, Brendan Regnery1, Markus Klute1, Benedikt Maier2, Cesare Tiziano Cazzaniga3, Roberto Seidita3, Annapaola de Cosa3, Aimar Aguado Berasaluce3, Rebecca Natalia Hamp3, Celeste Holm3, and Kevin Pedro4 — 1Karlsruher Institut für Technologie (KIT) — 2Imperial College London — 3ETH Zürich — 4Fermi National Accelerator Laboratory
Cosmological observations point towards the existence of Dark Matter (DM), a type of matter not described by the Standard Model (SM) that only interacts gravitationally and at most weakly with SM particles. This search looks for a signature called semivisible jets, which are jets containing invisible DM candidates. Semivisible jets could be caused by a QCD-like dark sector, coupled to the SM via a Z' mediator. To expand previous search efforts towards lower mediator masses, this search utilizes data scouting. Data scouting records the coarser HLT reconstruction instead of the full detector information to save on bandwidth, which allows lowering trigger thresholds, giving access to events that would typically have been discarded. This talk will give an overview of the search strategy, current status and expected limits of the search for semivisible jets with CMS Run 2 HLT scouting data.
Keywords: BSM; Scouting; Semivisible jets; Hidden Valley; Dark Shower