Axino dark matter and baryon number asymmetry production by the Q-ball decay in gauge mediation

Journal Article · Tue Mar 01 00:00:00 EST 2016 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2016/03/011· OSTI ID:22524951

Kasuya, Shinta ^[1]; Kawakami, Etsuko; Kawasaki, Masahiro ^[2]

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1. Department of Mathematics and Physics, Kanagawa University, Kanagawa 259-1293 (Japan)
2. Institute for Cosmic Ray Research, University of Tokyo, Chiba 277-8582 (Japan)

We investigate the Q-ball decay into the axino dark matter in the gauge-mediated supersymmetry breaking. In our scenario, the Q ball decays mainly into nucleons and partially into axinos to account respectively for the baryon asymmetry and the dark matter of the universe. The Q ball decays well before the big bang nucleosynthesis so that it is not affected by the decay. We show the region of the parameters which realizes this scenario.

• OSTI ID: 22524951
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2016, Issue 03; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASYMMETRY
BARYON NUMBER
COSMOLOGY
GAUGE INVARIANCE
NONLUMINOUS MATTER
NUCLEONS
NUCLEOSYNTHESIS
PARTICLE DECAY
POSTULATED PARTICLES
SUPERSYMMETRY
SYMMETRY BREAKING
UNIVERSE