Search for Supersymmetry in pp Collisions at ?s = 8 TeV with a Photon, Lepton, and Missing Transverse Energy

This Ph.D. thesis is a search for physics beyond the standard model (SM) of particle physics, whichsuccessfully describes the interactions and properties of all known elementary particles. However, noparticle exists in the SM that can account for the dark matter, which makes up about one quarter of theenergy-mass content of the universe. Understanding the nature of dark matter is one goal of the CERNLarge Hadron Collider (LHC). The extension of the SM with supersymmetry (SUSY) is considered apromising possibilities to explain dark matter. The nominated thesis describes a search for SUSY using data collected by the CMS experiment at theLHC. It utilizes a final state consisting of a photon, a lepton, and a large momentum imbalance probing aclass of SUSY models that has not yet been studied extensively. The thesis stands out not only due to itscontent that is explained with clarity but also because the author performed more or less all aspects of thethesis analysis by himself, from data skimming to limit calculations, which is extremely rare, especiallynowadays in the large LHC collaborations.