Charged Q-ball dark matter from B and L direction

Jeong Pyong Hong, Masahiro Kawasaki, Masaki Yamada

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


We consider nearly equal number of gauge mediation type charged (anti-) Q-balls with charge of ±α-1 ∼ ±137 well before the BBN epoch and discussed how they evolve in time. We found that ion-like objects with electric charges of +O(1) are likely to become relics in the present universe, which we expect to be the dark matter. These are constrained by MICA experiment, where the trail of heavy atom-like or ion-like object in 109 years old ancient mica crystals is not observed. We found that the allowed region for gauge mediation model parameter and reheating temperature have to be smaller than the case of the neutral Q-ball dark matter.

Original languageEnglish
Article number053
JournalJournal of Cosmology and Astroparticle Physics
Issue number8
Publication statusPublished - 2016 Aug 24


  • dark matter theory
  • physics of the early universe
  • supersymmetry and cosmology


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