Combination of Searches for gauge-mediated Supersymmetry in Events with Photons at CMS

In this thesis, a combination of searches for gauge-mediated supersymmetry in events withat least one photon is presented. The combination is based on proton-proton collision datarecorded by CMS in 2016, which corresponds to a center-of-mass energy of 13 TeV and anintegrated luminosity of 35.9 fb−1 . Four individual analyses, which all focus on signatures withisolated photons and a significant amount of missing transverse momentum, are combined tocover a wide range of different signal scenarios. These signatures are complemented by additionalcharged leptons, a second photon, or additional requirements on the hadronic activity. Withinthe combination, the signal regions of the contributing analyses are studied concerning possibleoverlaps, which are removed by an optimized veto strategy. The combination of searches probesthe phase space of two general gauge-mediated scenarios. For these scenarios, the combinationsets the first observed lower limits on neutralino and chargino masses, which reach up to 475 GeVand 850 GeV, respectively. In addition, the results of the combination are interpreted with respectto strong gluino pair production and with respect to electroweak scenarios, which feature avariable gaugino decay. Within these scenarios, gluino masses up to 2100 GeV and neutralinomasses up to 1200 GeV can be excluded.