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Search for long-lived particles in events with photons and missing energy in proton-proton collisio... https://t.co/rJjbwbAqDo
Search for long-lived particles in events with photons and missing energy in proton-proton collisio... https://t.co/rJjbwbAqDo
[1212.1838] CMS Collaboration : Search for long-lived particles decaying to photons and missing energy in proton... http://t.co/MTSkUpLY