Searches for New Physics in Photon Final States

The Run I results on the searches for new physics in photon final states were intriguing. The rare eeγγ 6ET candidate event and the measured event rate for the signature l + γ + 6ET, which was 2.7 sigma above the Standard Model predictions, sparked signature-based searches in the γγ +X and lγ +X channels. With more data in Run II we should be able to answer a simple question: was it an anomaly or were the Run I results the first evidence for new physics? We present searches for New Physics in Photon Final States at CDF Run II, Fermilab, with substantially more data and a higher p̄p collision energy, 1.96 TeV, and the upgraded CDF-II detector. PACS. 13.85.Rm Limits on production of particles – 12.60.Jv Supersymmetric models – 13.85.Qk Inclusive production with identified leptons, photons, or other nonhadronic particles – 14.80.Ly Supersymmetric partners of known particles – 14.80.-j Other particles (including hypothetical)