Karlsruhe 2024 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 106: Search for new particles 7
T 106.3: Vortrag
Freitag, 8. März 2024, 09:30–09:45, Geb. 20.30: 2.058
Search for single Vector-Like Quarks with the Run 2 data of the CMS experiment — •Di Wang — Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607 Hamburg
As an extension of the standard model, Vector Like Quarks provide a possible solution to various unsolved issues, such as the hierarchy problem. This analysis focuses on the single production of the vector-like top quark T′, in the decay channel T′→ tH (H→ WW), in the final state with two opposite sign leptons. The analysis is based on data collected by CMS Run 2, corresponding to an integrated luminosity of 137 fb−1. The di-lepton final state includes the di-electron channel, the di-muon channel, and the electron-muon channel. A cut-based event selection strategy was designed, followed by a mass reconstruction method based on the χ2 sorting algorithm and neutrino kinematic approximations. A preliminary data-MC comparison and limits based on MC data will be presented.