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arXiv · 1209.1531

Cosmologically viable gauge mediation

Hiraku Fukushima·Ryuichiro Kitano·Fuminobu Takahashi
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Abstract

Gauge mediation provides us with a complete picture of supersymmetry breaking and its mediation within the effective field theories, and thus allows us to discuss consistencies with low-energy particle physics as well as cosmological observations. We study in detail the cosmological evolution of the pseudo-modulus field in the supersymmetry breaking sector and also the production of the gravitinos in the early Universe in a simple (but a complete) model of gauge mediation. Under fairly reasonable assumptions, it is found that there exists a parameter region where dark matter of the Universe is explained by both thermally and non-thermally produced gravitinos, while the baryon asymmetry of the Universe is generated through the thermal leptogenesis.

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Hiraku Fukushima, Ryuichiro Kitano, Fuminobu Takahashi. 2012-09-07. Cosmologically viable gauge mediation. https://doi.org/10.1007/jhep02(2013)140

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