Abstract
The results of searches for physics beyond the standard model with photons in the final state are presented. Events were collected at center-of-mass energies of 7 and 8 TeV in proton-proton collisions during the first run of the LHC data taking between 2011 and 2015 and analyzed with the general-purpose detector of the Compact Muon Solenoid experiment. A search for long-lived particles which decay to photons is first presented. This is the first search at CMS which exploits information of the time measurement made with the CMS electromagnetic calorimeter to identify displaced photons. A model-independent search for new heavy scalars in the diphoton final state is also described. The search, covering the mass range between 150 GeV and 850 GeV, is extended to resonances with natural width up to 10% of the mass. Results obtained in both searches significantly extend previous searches results in terms of mass, width and lifetime ranges.
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