Monopolium: the key to monopoles

Dirac showed that the existence of one magnetic pole in the universe could offer an explanation for the discrete nature of the electric charge. Magnetic poles appear naturally in most Grand Unified Theories. Their discovery would be of greatest importance for particle physics and cosmology. The intense experimental search carried thus far has not met with success. A way out of this impasse could be that the monopoles are dynamically confined forming monopolium, a monopole- anti-monopole bound state. Even if the poles are very massive, the binding could be so strong, that monopolium could have a relatively small mass. We study in this scenario the feasibility of detecting monopolium in present and future accelerators.