Cosmological evolution of scalar fields and gravitino dark matter in gauge mediation at low reheating temperatures

Ferrantelli, Andrea and McDonald, John (2010) Cosmological evolution of scalar fields and gravitino dark matter in gauge mediation at low reheating temperatures. Journal of Cosmology and Astroparticle Physics, 2010 (2). ISSN 1475-7516

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Abstract

We consider the dynamics of the supersymmetry-breaking scalar field and the production of dark matter gravitinos via its decay in a gauge-mediated supersymmetry breaking model with metastable vacuum. We find that the scalar field amplitude and gravitino density are extremely sensitive to the parameters of the hidden sector. For the case of an O'Raifeartaigh sector, we show that the observed dark matter density can be explained by gravitinos even for low reheating temperatures T_{R}

Item Type:
Journal Article
Journal or Publication Title:
Journal of Cosmology and Astroparticle Physics
Additional Information:
11 pages RevTex. Extended discussion and minor corrections, conclusions unaltered. Version to be published in JCAP
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
56806
Deposited By:
Deposited On:
15 Aug 2012 11:59
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Jan 2020 01:58