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Supersymmetric dark-matter Q-balls and their interactions in matter

Alexander Kusenko·Lee Loveridge·Mikhail Shaposhnikov
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Abstract

Supersymmetric extensions of the Standard Model contain non-topological solitons, Q-balls, which can be stable and can be a form of cosmological dark matter. Understanding the interaction of SUSY Q-balls with matter fermions is important for both astrophysical limits and laboratory searches for these dark matter candidates. We show that a baryon scattering off a baryonic SUSY Q-ball can convert into its antiparticle with a high probability, while the baryon number of the Q-ball is increased by two units. For a SUSY Q-ball interacting with matter, this process dominates over those previously discussed in the literature.

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Alexander Kusenko, Lee Loveridge, Mikhail Shaposhnikov. 2005-07-23. Supersymmetric dark-matter Q-balls and their interactions in matter. https://doi.org/10.1103/physrevd.72.025015

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