Semiclassical geons at particle accelerators

Understand

We point out that in certain four-dimensional extensions of general relativity constructed within the Palatini formalism stable self-gravitating objects with a discrete mass and charge spectrum may exist.

• The incorporation of nonlinearities in the electromagnetic field may effectively reduce their mass spectrum by many orders of magnitude.
• As a consequence, these objects could be within (or near) the reach of current particle accelerators.
• We provide an exactly solvable model to support this idea.