Gravitino dark matter and baryon asymmetry from Q-ball decay in gauge mediation

Abstract

We investigate the Q-ball decay in the gauge-mediated SUSY breaking. Q balls decay mainly into nucleons, and partially into gravitinos, while they are kinematically forbidden to decay into sparticles which would be cosmologically harmful. This is achieved by the Q-ball charge small enough to be unstable for the decay, and large enough to be protected kinematically from unwanted decay channel. We can then have right amounts of the baryon asymmetry and the dark matter of the universe, evading any astrophysical and cosmological observational constraints such as the big bang nucleosynthesis, which has not been treated properly in the literatures.

7 pages, 6 eps figures, footnote added

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• Big-Bang Nucleosynthesis and Gravitino
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• Gravitino dark matter from Q-ball decays
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• Revisiting the gravitino dark matter and baryon asymmetry from Q-ball decay in gauge mediation
• Baryogenesis from the Gauge-mediation type Q ball and the New type of Q ball as dark matter
• Affleck-Dine Baryogenesis and Dark Matter Production after High-scale Inflation
• Charge-Swapping Q-balls and Their Lifetimes
• Affleck-Dine baryogenesis just after inflation
• Snowmass-2013 Cosmic Frontier 3 (CF3) Working Group Summary: Non-WIMP dark matter
• Dark Matter Gravitinos and Baryons via Q-ball decay in the Gauge-Mediated MSSM
• Opening the window to the cogenesis with Affleck-Dine mechanism in gravity mediation
• Baryon Asymmetric Universe from Spontaneous CP Violation
• New Q-ball Solutions in Gauge-Mediation, Affleck-Dine Baryogenesis and Gravitino Dark Matter
• Q-ball dark matter and baryogenesis in high-scale inflation
• A solution to the baryon-DM coincidence problem in the CMSSM with a 126-GeV Higgs boson
• Affleck-Dine baryogenesis after D-term inflation and solutions to the baryon-DM coincidence problem
• Axino dark matter and baryon number asymmetry production by the Q-ball decay in gauge mediation
• Affleck-Dine leptogenesis and its backreaction to inflaton dynamics
• Charge distribution of the gauge-mediation type Q ball
• Understanding the Quantized Angular Momentum of Rotating Q-balls