Probing new physics with displaced vertices: Muon tracker at CMS
Kyrylo Bondarenko (Intituut-Lorentz, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, Netherlands); Alexey Boyarsky (Intituut-Lorentz, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, Netherlands); Maksym Ovchynnikov (Intituut-Lorentz, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, Netherlands); Oleg Ruchayskiy (Discovery Center, Niels Bohr Institute, Copenhagen University, Blegdamsvej 17, DK-2100 Copenhagen, Denmark); Lesya Shchutska (Institute of physics, Laboratoire de physique des hautes énergies (LPHE), École polytechnique fédérale de Lausanne (EPFL), BSP 625, Rte de la Sorge, CH-1015 Lausanne, Switzerland)
Long-lived particles can manifest themselves at the LHC via “displaced vertices”—several charged tracks originating from a position separated from the proton interaction point by a macroscopic distance. Here we demonstrate the potential of the muon trackers at the CMS experiment for displaced vertex searches. We use heavy neutral leptons and Chern-Simons portal as two examples of long-lived particles for which the CMS muon tracker can provide essential information about their properties.
