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MSSM flat direction inflation : slow roll, stability, fine tuning and reheating.

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

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MSSM flat direction inflation : slow roll, stability, fine tuning and reheating. / Allahverdi, Rouzbeh; Enqvist, Kari; Garcia-Bellido, Juan et al.
In: Journal of Cosmology and Astroparticle Physics, Vol. 2007, No. 6, 20.06.2007, p. 019.

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

Harvard

Allahverdi, R, Enqvist, K, Garcia-Bellido, J, Jokinen, A & Mazumdar, A 2007, 'MSSM flat direction inflation : slow roll, stability, fine tuning and reheating.', Journal of Cosmology and Astroparticle Physics, vol. 2007, no. 6, pp. 019. https://doi.org/10.1088/1475-7516/2007/06/019

APA

Allahverdi, R., Enqvist, K., Garcia-Bellido, J., Jokinen, A., & Mazumdar, A. (2007). MSSM flat direction inflation : slow roll, stability, fine tuning and reheating. Journal of Cosmology and Astroparticle Physics, 2007(6), 019. https://doi.org/10.1088/1475-7516/2007/06/019

Vancouver

Allahverdi R, Enqvist K, Garcia-Bellido J, Jokinen A, Mazumdar A. MSSM flat direction inflation : slow roll, stability, fine tuning and reheating. Journal of Cosmology and Astroparticle Physics. 2007 Jun 20;2007(6):019. doi: 10.1088/1475-7516/2007/06/019

Author

Allahverdi, Rouzbeh ; Enqvist, Kari ; Garcia-Bellido, Juan et al. / MSSM flat direction inflation : slow roll, stability, fine tuning and reheating. In: Journal of Cosmology and Astroparticle Physics. 2007 ; Vol. 2007, No. 6. pp. 019.

Bibtex

@article{b31034e0aca444dcbd6f7b50df0aee41,
title = "MSSM flat direction inflation : slow roll, stability, fine tuning and reheating.",
abstract = "We consider low scale slow roll inflation driven by the gauge-invariant flat directions udd and LLe of the minimally supersymmetric standard model at the vicinity of a saddle point of the scalar potential. We study the stability of the saddle point and the slow roll regime by considering radiative and supergravity corrections. The latter are found to be harmless, but the former require a modest fine-tuning of the saddle point condition. We show that, while the inflaton decays almost instantly, full thermalization occurs late, typically at a temperature T107 GeV, so that there is no gravitino problem. We also compute the renormalization group running of the inflaton mass and relate it to slepton masses that may be within the reach of the LHC and could be precisely determined in a future linear collider experiment.",
keywords = "cosmology of theories beyond the SM, physics of the early universe",
author = "Rouzbeh Allahverdi and Kari Enqvist and Juan Garcia-Bellido and Asko Jokinen and Anupam Mazumdar",
year = "2007",
month = jun,
day = "20",
doi = "10.1088/1475-7516/2007/06/019",
language = "English",
volume = "2007",
pages = "019",
journal = "Journal of Cosmology and Astroparticle Physics",
issn = "1475-7516",
publisher = "IOP Publishing",
number = "6",

}

RIS

TY - JOUR

T1 - MSSM flat direction inflation : slow roll, stability, fine tuning and reheating.

AU - Allahverdi, Rouzbeh

AU - Enqvist, Kari

AU - Garcia-Bellido, Juan

AU - Jokinen, Asko

AU - Mazumdar, Anupam

PY - 2007/6/20

Y1 - 2007/6/20

N2 - We consider low scale slow roll inflation driven by the gauge-invariant flat directions udd and LLe of the minimally supersymmetric standard model at the vicinity of a saddle point of the scalar potential. We study the stability of the saddle point and the slow roll regime by considering radiative and supergravity corrections. The latter are found to be harmless, but the former require a modest fine-tuning of the saddle point condition. We show that, while the inflaton decays almost instantly, full thermalization occurs late, typically at a temperature T107 GeV, so that there is no gravitino problem. We also compute the renormalization group running of the inflaton mass and relate it to slepton masses that may be within the reach of the LHC and could be precisely determined in a future linear collider experiment.

AB - We consider low scale slow roll inflation driven by the gauge-invariant flat directions udd and LLe of the minimally supersymmetric standard model at the vicinity of a saddle point of the scalar potential. We study the stability of the saddle point and the slow roll regime by considering radiative and supergravity corrections. The latter are found to be harmless, but the former require a modest fine-tuning of the saddle point condition. We show that, while the inflaton decays almost instantly, full thermalization occurs late, typically at a temperature T107 GeV, so that there is no gravitino problem. We also compute the renormalization group running of the inflaton mass and relate it to slepton masses that may be within the reach of the LHC and could be precisely determined in a future linear collider experiment.

KW - cosmology of theories beyond the SM

KW - physics of the early universe

U2 - 10.1088/1475-7516/2007/06/019

DO - 10.1088/1475-7516/2007/06/019

M3 - Journal article

VL - 2007

SP - 019

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

SN - 1475-7516

IS - 6

ER -