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Right-handed sneutrino condensate cold dark matter and the baryon-to-dark matter ratio.

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Right-handed sneutrino condensate cold dark matter and the baryon-to-dark matter ratio. / McDonald, John.
In: Journal of Cosmology and Astroparticle Physics, Vol. 2007, No. 01, 02.01.2007, p. 001.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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McDonald J. Right-handed sneutrino condensate cold dark matter and the baryon-to-dark matter ratio. Journal of Cosmology and Astroparticle Physics. 2007 Jan 2;2007(01):001. doi: 10.1088/1475-7516/2007/01/001

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McDonald, John. / Right-handed sneutrino condensate cold dark matter and the baryon-to-dark matter ratio. In: Journal of Cosmology and Astroparticle Physics. 2007 ; Vol. 2007, No. 01. pp. 001.

Bibtex

@article{b17e1a16875e4940ac971956da93541e,
title = "Right-handed sneutrino condensate cold dark matter and the baryon-to-dark matter ratio.",
abstract = "The similarity of the observed densities of baryons and cold dark matter suggests that they have a common or related origin. This can be understood in the context of the MSSM with right-handed (RH) sneutrinos if cold dark matter is due to a d = 4 flat direction condensate of very weakly coupled RH sneutrino LSPs and the baryon asymmetry is generated by Affleck–Dine leptogenesis along the d = 4 (HuL)2 flat direction. The correct density of RH sneutrino dark matter is obtained if the reheating temperature is in the range 106–108 GeV. A cold dark matter isocurvature perturbation close to present observational bounds is likely in the case of inflation driven by a D-term or by an F-term with suppressed Hubble corrections to the A-terms. An observable baryon isocurvature perturbation is also possible in the case of D-term inflation models.",
keywords = "dark energy theory, baryon asymmetry, inflation",
author = "John McDonald",
year = "2007",
month = jan,
day = "2",
doi = "10.1088/1475-7516/2007/01/001",
language = "English",
volume = "2007",
pages = "001",
journal = "Journal of Cosmology and Astroparticle Physics",
issn = "1475-7516",
publisher = "IOP Publishing",
number = "01",

}

RIS

TY - JOUR

T1 - Right-handed sneutrino condensate cold dark matter and the baryon-to-dark matter ratio.

AU - McDonald, John

PY - 2007/1/2

Y1 - 2007/1/2

N2 - The similarity of the observed densities of baryons and cold dark matter suggests that they have a common or related origin. This can be understood in the context of the MSSM with right-handed (RH) sneutrinos if cold dark matter is due to a d = 4 flat direction condensate of very weakly coupled RH sneutrino LSPs and the baryon asymmetry is generated by Affleck–Dine leptogenesis along the d = 4 (HuL)2 flat direction. The correct density of RH sneutrino dark matter is obtained if the reheating temperature is in the range 106–108 GeV. A cold dark matter isocurvature perturbation close to present observational bounds is likely in the case of inflation driven by a D-term or by an F-term with suppressed Hubble corrections to the A-terms. An observable baryon isocurvature perturbation is also possible in the case of D-term inflation models.

AB - The similarity of the observed densities of baryons and cold dark matter suggests that they have a common or related origin. This can be understood in the context of the MSSM with right-handed (RH) sneutrinos if cold dark matter is due to a d = 4 flat direction condensate of very weakly coupled RH sneutrino LSPs and the baryon asymmetry is generated by Affleck–Dine leptogenesis along the d = 4 (HuL)2 flat direction. The correct density of RH sneutrino dark matter is obtained if the reheating temperature is in the range 106–108 GeV. A cold dark matter isocurvature perturbation close to present observational bounds is likely in the case of inflation driven by a D-term or by an F-term with suppressed Hubble corrections to the A-terms. An observable baryon isocurvature perturbation is also possible in the case of D-term inflation models.

KW - dark energy theory

KW - baryon asymmetry

KW - inflation

U2 - 10.1088/1475-7516/2007/01/001

DO - 10.1088/1475-7516/2007/01/001

M3 - Journal article

VL - 2007

SP - 001

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

SN - 1475-7516

IS - 01

ER -