MULTIPHOTON DECAYS OF HEAVY-PARTICLES

Decays of two heavy particles, produced in cosmic ray interactions, ar e presented. These particles decay into one charged particle and four photons each. The photons converted into electron pairs very close to the decay vertex. Attempts to explain this decay topology with known p article decays are presented. Unless both events represent a b --> u t ransition, which is statistically unlikely, then other known decay mod es for charmed or bottom particles do not account satisfactorily for t hese observations. This could indicate, possibly, a new decay channel.