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Supergravity Modification of D-term Hybrid Inflation: Solving the Cosmic String and Spectral Index Problem via a Right-Handed Sneutrino.

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Supergravity Modification of D-term Hybrid Inflation: Solving the Cosmic String and Spectral Index Problem via a Right-Handed Sneutrino. / McDonald, John; Lin, C. M.
In: Physical Review D, Vol. 74, No. 6, 01.09.2006, p. 063510.

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

Harvard

McDonald, J & Lin, CM 2006, 'Supergravity Modification of D-term Hybrid Inflation: Solving the Cosmic String and Spectral Index Problem via a Right-Handed Sneutrino.', Physical Review D, vol. 74, no. 6, pp. 063510. https://doi.org/10.1103/PhysRevD.74.063510

APA

McDonald, J., & Lin, C. M. (2006). Supergravity Modification of D-term Hybrid Inflation: Solving the Cosmic String and Spectral Index Problem via a Right-Handed Sneutrino. Physical Review D, 74(6), 063510. https://doi.org/10.1103/PhysRevD.74.063510

Vancouver

McDonald J, Lin CM. Supergravity Modification of D-term Hybrid Inflation: Solving the Cosmic String and Spectral Index Problem via a Right-Handed Sneutrino. Physical Review D. 2006 Sept 1;74(6):063510. doi: 10.1103/PhysRevD.74.063510

Author

McDonald, John ; Lin, C. M. / Supergravity Modification of D-term Hybrid Inflation: Solving the Cosmic String and Spectral Index Problem via a Right-Handed Sneutrino. In: Physical Review D. 2006 ; Vol. 74, No. 6. pp. 063510.

Bibtex

@article{69a979fba2e24480a0339c082630e9be,
title = "Supergravity Modification of D-term Hybrid Inflation: Solving the Cosmic String and Spectral Index Problem via a Right-Handed Sneutrino.",
abstract = "Supergravity corrections due to the energy density of a right-handed sneutrino can generate a negative mass squared for the inflaton, flattening the inflaton potential and reducing the spectral index and inflaton energy density. For the case of D-term hybrid inflation, we show that the spectral index can be lowered from the conventional value n=0.98 to a value within the range favored by the latest WMAP analysis, n=0.951-0.019+0.015. The modified energy density is consistent with nonobservation of cosmic strings in the CMB if n<0.946. The WMAP lower bound on the spectral index implies that the D-term cosmic string contribution may be very close present CMB limits, contributing at least 5% to the CMB multipoles.",
author = "John McDonald and Lin, {C. M.}",
note = "One of the first papers to discuss the implications for inflation models of the latest 3-year WMAP CMB observations. It has generated new research on SUSY inflation models and cosmic strings. Basis of a new RTN collaboration with the Helsinki Institute of Physics (Ferrantelli and Enqvist). 14 citations (SPIRES). RAE_import_type : Journal article RAE_uoa_type : Physics",
year = "2006",
month = sep,
day = "1",
doi = "10.1103/PhysRevD.74.063510",
language = "English",
volume = "74",
pages = "063510",
journal = "Physical Review D",
issn = "1550-2368",
publisher = "American Physical Society",
number = "6",

}

RIS

TY - JOUR

T1 - Supergravity Modification of D-term Hybrid Inflation: Solving the Cosmic String and Spectral Index Problem via a Right-Handed Sneutrino.

AU - McDonald, John

AU - Lin, C. M.

N1 - One of the first papers to discuss the implications for inflation models of the latest 3-year WMAP CMB observations. It has generated new research on SUSY inflation models and cosmic strings. Basis of a new RTN collaboration with the Helsinki Institute of Physics (Ferrantelli and Enqvist). 14 citations (SPIRES). RAE_import_type : Journal article RAE_uoa_type : Physics

PY - 2006/9/1

Y1 - 2006/9/1

N2 - Supergravity corrections due to the energy density of a right-handed sneutrino can generate a negative mass squared for the inflaton, flattening the inflaton potential and reducing the spectral index and inflaton energy density. For the case of D-term hybrid inflation, we show that the spectral index can be lowered from the conventional value n=0.98 to a value within the range favored by the latest WMAP analysis, n=0.951-0.019+0.015. The modified energy density is consistent with nonobservation of cosmic strings in the CMB if n<0.946. The WMAP lower bound on the spectral index implies that the D-term cosmic string contribution may be very close present CMB limits, contributing at least 5% to the CMB multipoles.

AB - Supergravity corrections due to the energy density of a right-handed sneutrino can generate a negative mass squared for the inflaton, flattening the inflaton potential and reducing the spectral index and inflaton energy density. For the case of D-term hybrid inflation, we show that the spectral index can be lowered from the conventional value n=0.98 to a value within the range favored by the latest WMAP analysis, n=0.951-0.019+0.015. The modified energy density is consistent with nonobservation of cosmic strings in the CMB if n<0.946. The WMAP lower bound on the spectral index implies that the D-term cosmic string contribution may be very close present CMB limits, contributing at least 5% to the CMB multipoles.

U2 - 10.1103/PhysRevD.74.063510

DO - 10.1103/PhysRevD.74.063510

M3 - Journal article

VL - 74

SP - 063510

JO - Physical Review D

JF - Physical Review D

SN - 1550-2368

IS - 6

ER -