A Search for New Physics with a Three Photon Final State Using the CMS Detector

A search for new physics with a three photon final state has been performed using data from the Compact Muon Solenoid detector at the Large Hadron Collider. The integrated luminosity was 12.3 fb−1 recorded in 2012 at center-of-mass energy of 8 TeV. No significant narrow resonance in the diphoton spectrum is observed in the mass range of 220 − 600 GeV. The 95% confidence level limits on the cross section times branching ratio are presented.