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According to a new theory, the existence of hypothetical extra spatial dimensions might be revealed in high energy collisions in accelerator experiments in the following manner. Some of the collision energy might be converted into a graviton, which would disappear into one of the extra dimensions of what would now be called a "megaverse". This would not be detectable and it would appear to experimenters as if the energy of the collision had not been conserved.
Reported by: Gregory Landsberg at the APS spring meeting in Long Beach, California