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Supersymmetric dark matter Q-balls and their interactions in matter

May, 2004
12 pages
Published in:
  • Phys.Rev.D 72 (2005) 025015
e-Print:
DOI:
Report number:
  • EPFL-ITP-LPPC-04-2S,
  • UCLA-04-TEP-13
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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.
  • 12.60.Jv
  • 14.80.Ly
  • 11.30.Pb
  • 95.35.+d
  • supersymmetry
  • dark matter
  • Q-ball
  • scattering: quark Q-ball
  • time dependence
  • neutron star
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