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Inflation at the TeV scale with a PNGB curvaton.

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Inflation at the TeV scale with a PNGB curvaton. / Dimopoulos, Konstantinos.
In: Physics Letters B, Vol. 634, No. 4, 16.03.2006, p. 331-339.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Dimopoulos K. Inflation at the TeV scale with a PNGB curvaton. Physics Letters B. 2006 Mar 16;634(4):331-339. doi: 10.1016/j.physletb.2006.01.050

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Dimopoulos, Konstantinos. / Inflation at the TeV scale with a PNGB curvaton. In: Physics Letters B. 2006 ; Vol. 634, No. 4. pp. 331-339.

Bibtex

@article{1ea56c8ccaae4de5b854effb13109e53,
title = "Inflation at the TeV scale with a PNGB curvaton.",
abstract = "We investigate a particular type of curvaton mechanism, under which inflation can occur at Hubble scale of order 1 TeV. The curvaton is a pseudo Nambu–Goldstone boson, whose order parameter increases after a phase transition during inflation, triggered by the gradual decrease of the Hubble scale. The mechanism is studied in the context of modular inflation, where the inflaton is a string axion. We show that the mechanism is successful for natural values of the model parameters, provided the phase transition occurs much earlier than the time when the cosmological scales exit the horizon. Also, it turns our that the radial mode for our curvaton must be a flaton field.",
author = "Konstantinos Dimopoulos",
year = "2006",
month = mar,
day = "16",
doi = "10.1016/j.physletb.2006.01.050",
language = "English",
volume = "634",
pages = "331--339",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "4",

}

RIS

TY - JOUR

T1 - Inflation at the TeV scale with a PNGB curvaton.

AU - Dimopoulos, Konstantinos

PY - 2006/3/16

Y1 - 2006/3/16

N2 - We investigate a particular type of curvaton mechanism, under which inflation can occur at Hubble scale of order 1 TeV. The curvaton is a pseudo Nambu–Goldstone boson, whose order parameter increases after a phase transition during inflation, triggered by the gradual decrease of the Hubble scale. The mechanism is studied in the context of modular inflation, where the inflaton is a string axion. We show that the mechanism is successful for natural values of the model parameters, provided the phase transition occurs much earlier than the time when the cosmological scales exit the horizon. Also, it turns our that the radial mode for our curvaton must be a flaton field.

AB - We investigate a particular type of curvaton mechanism, under which inflation can occur at Hubble scale of order 1 TeV. The curvaton is a pseudo Nambu–Goldstone boson, whose order parameter increases after a phase transition during inflation, triggered by the gradual decrease of the Hubble scale. The mechanism is studied in the context of modular inflation, where the inflaton is a string axion. We show that the mechanism is successful for natural values of the model parameters, provided the phase transition occurs much earlier than the time when the cosmological scales exit the horizon. Also, it turns our that the radial mode for our curvaton must be a flaton field.

U2 - 10.1016/j.physletb.2006.01.050

DO - 10.1016/j.physletb.2006.01.050

M3 - Journal article

VL - 634

SP - 331

EP - 339

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 4

ER -