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

Physics

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Theoretical Particle Cosmology

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https://doi.org/10.1088/1475-7516/2010/02/003
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Cosmological evolution of scalar fields and gravitino dark matter in gauge mediation at low reheating temperatures. / Ferrantelli, Andrea; McDonald, John.
In: Journal of Cosmology and Astroparticle Physics, Vol. 2010, No. 2, 3, 02.2010.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{9fb3730535544994a74626c225f399ef,

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

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}",

author = "Andrea Ferrantelli and John McDonald",

note = "11 pages RevTex. Extended discussion and minor corrections, conclusions unaltered. Version to be published in JCAP",

year = "2010",

month = feb,

doi = "10.1088/1475-7516/2010/02/003",

language = "English",

volume = "2010",

journal = "Journal of Cosmology and Astroparticle Physics",

issn = "1475-7516",

publisher = "IOP Publishing",

number = "2",

}

RIS

TY - JOUR

T1 - Cosmological evolution of scalar fields and gravitino dark matter in gauge mediation at low reheating temperatures

AU - Ferrantelli, Andrea

AU - McDonald, John

N1 - 11 pages RevTex. Extended discussion and minor corrections, conclusions unaltered. Version to be published in JCAP

PY - 2010/2

Y1 - 2010/2

N2 - 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}

AB - 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}

U2 - 10.1088/1475-7516/2010/02/003

DO - 10.1088/1475-7516/2010/02/003

M3 - Journal article

VL - 2010

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

SN - 1475-7516

IS - 2

M1 - 3

ER -

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