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Inflation with large supergravity corrections

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

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Inflation with large supergravity corrections. / Mazumdar, Anupam; Nadathur, Seshadri; Stephens, Philip.
In: Physical Review D – Particles and Fields, Vol. 85, No. 4, 045001, 03.02.2012.

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

Harvard

Mazumdar, A, Nadathur, S & Stephens, P 2012, 'Inflation with large supergravity corrections', Physical Review D – Particles and Fields, vol. 85, no. 4, 045001. https://doi.org/10.1103/PhysRevD.85.045001

APA

Mazumdar, A., Nadathur, S., & Stephens, P. (2012). Inflation with large supergravity corrections. Physical Review D – Particles and Fields, 85(4), Article 045001. https://doi.org/10.1103/PhysRevD.85.045001

Vancouver

Mazumdar A, Nadathur S, Stephens P. Inflation with large supergravity corrections. Physical Review D – Particles and Fields. 2012 Feb 3;85(4):045001. doi: 10.1103/PhysRevD.85.045001

Author

Mazumdar, Anupam ; Nadathur, Seshadri ; Stephens, Philip. / Inflation with large supergravity corrections. In: Physical Review D – Particles and Fields. 2012 ; Vol. 85, No. 4.

Bibtex

@article{0823f020ddf0428a84ab7c09b57c8490,
title = "Inflation with large supergravity corrections",
abstract = "It is well known that large Hubble-induced supergravity corrections to the inflaton field can ruin the flatness of the potential, thus creating a tension between slow-roll inflation and supergravity. In this paper we show that it is possible to obtain a {\it cosmologically flat} direction, embedded within the minimal supersymmetric standard model, despite very large super-Hubble corrections. As an illustration, we show that a flat direction which is lifted by an $n=6$ operator matches the current cosmic microwave background data for a wide range of the Hubble parameter, $10^{5} {\rm GeV}\lesssim H_{inf}\lesssim 10^{8.5}$ GeV. Our approach can be applied to any $F$-term inflationary model.",
author = "Anupam Mazumdar and Seshadri Nadathur and Philip Stephens",
note = "5 pages, 1 figure. This version updated to match published version in PRD. Title changed in accordance with journal request. {\textcopyright} 2012 American Physical Society",
year = "2012",
month = feb,
day = "3",
doi = "10.1103/PhysRevD.85.045001",
language = "English",
volume = "85",
journal = "Physical Review D – Particles and Fields",
issn = "1550-2368",
publisher = "American Physical Society",
number = "4",

}

RIS

TY - JOUR

T1 - Inflation with large supergravity corrections

AU - Mazumdar, Anupam

AU - Nadathur, Seshadri

AU - Stephens, Philip

N1 - 5 pages, 1 figure. This version updated to match published version in PRD. Title changed in accordance with journal request. © 2012 American Physical Society

PY - 2012/2/3

Y1 - 2012/2/3

N2 - It is well known that large Hubble-induced supergravity corrections to the inflaton field can ruin the flatness of the potential, thus creating a tension between slow-roll inflation and supergravity. In this paper we show that it is possible to obtain a {\it cosmologically flat} direction, embedded within the minimal supersymmetric standard model, despite very large super-Hubble corrections. As an illustration, we show that a flat direction which is lifted by an $n=6$ operator matches the current cosmic microwave background data for a wide range of the Hubble parameter, $10^{5} {\rm GeV}\lesssim H_{inf}\lesssim 10^{8.5}$ GeV. Our approach can be applied to any $F$-term inflationary model.

AB - It is well known that large Hubble-induced supergravity corrections to the inflaton field can ruin the flatness of the potential, thus creating a tension between slow-roll inflation and supergravity. In this paper we show that it is possible to obtain a {\it cosmologically flat} direction, embedded within the minimal supersymmetric standard model, despite very large super-Hubble corrections. As an illustration, we show that a flat direction which is lifted by an $n=6$ operator matches the current cosmic microwave background data for a wide range of the Hubble parameter, $10^{5} {\rm GeV}\lesssim H_{inf}\lesssim 10^{8.5}$ GeV. Our approach can be applied to any $F$-term inflationary model.

U2 - 10.1103/PhysRevD.85.045001

DO - 10.1103/PhysRevD.85.045001

M3 - Journal article

VL - 85

JO - Physical Review D – Particles and Fields

JF - Physical Review D – Particles and Fields

SN - 1550-2368

IS - 4

M1 - 045001

ER -