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arXiv · 1103.1632

Monopoles, strings and dark matter

Catalina Gomez Sanchez·Bob Holdom
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Abstract

We develop a scenario whereby monopoles in a hidden sector yield a decaying dark matter candidate of interest for the PAMELA and FERMI $e^\pm$ excesses. The monopoles are not completely hidden due to a very small kinetic mixing and a hidden photon mass. The latter also causes the monopoles and anti-monopoles to be connected by strings. The resulting long-lived objects eventually decay to hidden photons which tend to escape galactic cores before decaying. The mass scales are those of the hidden photon ($\approx 500$ MeV), the monopole ($\approx 3$ TeV) and the mixing scale (close to the Planck scale). A gauge coupling in the hidden sector is the only other parameter. This coupling must be strong and this results in light point-like monopoles and light thin strings.

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Catalina Gomez Sanchez, Bob Holdom. 2011-04-04. Monopoles, strings and dark matter. https://doi.org/10.1103/physrevd.83.123524

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