Search for production of hidden particles in proton-proton collisions with the CMS experiment at the Large Hadron Collider (LHC) using displaced non-prompt lepton Universiteit Antwerpen
This thesis project conducts a search for a new type of particle using the data of the CMS experiment at the Large Hadron Collider at CERN, in Geneva, Switzerland. The data have been collected in 2016, 2017 and 2018, before the long shutdown started. The new particle is a so called Heavy Neutral Lepton (HNL), a potential new family member of the Standard Model neutrino. Along with the known left-handed neutrinos that interact with the W and Z ...