Number 118 (Story #1), March 12, 1993 by Phillip F. Schewe and Ben Stein MYSTERIOUS DI-PHOTON EVENTS , electron-positron collision events at the LEP accelerator in which the final-state particles include a pair of leptons and a pair of photons (the photon energy adding up to about 60 GeV) have been reported by the L3 and the DELPHI collaborations, two of the four detector groups at LEP. At a meeting at CERN in November 1992 Sam Ting of L3 showed the particle-track diagrams for four such events and Ugo Amaldi of DELPHI showed two events. The hypothetical Higgs particle could decay into a pair of photons, but other decay paths should also have been evident in the data but weren't. (CERN Courier, Jan./Feb. 1993.)