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Distinguishing Higgs inflation and its variants

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Distinguishing Higgs inflation and its variants. / N. Lerner, Rose; McDonald, John.

In: Physical Review D, Vol. 83, No. 12, 123522, 21.06.2011.

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N. Lerner, Rose ; McDonald, John. / Distinguishing Higgs inflation and its variants. In: Physical Review D. 2011 ; Vol. 83, No. 12.

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@article{b16eb7cc6cea4dbbb05417cd47887cd5,
title = "Distinguishing Higgs inflation and its variants",
abstract = "We consider how Higgs Inflation can be observationally distinguished from variants based on gauge singlet scalar extensions of the Standard Model, in particular where the inflaton is a non-minimally coupled gauge singlet scalar (S-inflation). We show that radiative corrections generally cause the spectral index n to decrease relative to the classical value as the Higgs mass is increased if the Higgs boson is the inflaton, whereas n increases with increasing Higgs mass if the inflaton is a gauge singlet scalar. The accuracy to which n can be calculated in these models depends on how precisely the reheating temperature can be determined. The number of Einstein frame e-foldings N is similar in both models, with N = 58-61 for singlet inflation compared with N = 57-60 for Higgs inflation. This allows the spectral index to be calculated to an accuracy \Delta n = 0.001. Provided the Higgs mass is above ~ 135 GeV, a combination of a Higgs mass measurement and a precise determination of n will enable Higgs Inflation and S-inflation to be distinguished.",
author = "{N. Lerner}, Rose and John McDonald",
note = "19 pages (including appendices)",
year = "2011",
month = jun,
day = "21",
doi = "10.1103/PhysRevD.83.123522",
language = "English",
volume = "83",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "12",

}

RIS

TY - JOUR

T1 - Distinguishing Higgs inflation and its variants

AU - N. Lerner, Rose

AU - McDonald, John

N1 - 19 pages (including appendices)

PY - 2011/6/21

Y1 - 2011/6/21

N2 - We consider how Higgs Inflation can be observationally distinguished from variants based on gauge singlet scalar extensions of the Standard Model, in particular where the inflaton is a non-minimally coupled gauge singlet scalar (S-inflation). We show that radiative corrections generally cause the spectral index n to decrease relative to the classical value as the Higgs mass is increased if the Higgs boson is the inflaton, whereas n increases with increasing Higgs mass if the inflaton is a gauge singlet scalar. The accuracy to which n can be calculated in these models depends on how precisely the reheating temperature can be determined. The number of Einstein frame e-foldings N is similar in both models, with N = 58-61 for singlet inflation compared with N = 57-60 for Higgs inflation. This allows the spectral index to be calculated to an accuracy \Delta n = 0.001. Provided the Higgs mass is above ~ 135 GeV, a combination of a Higgs mass measurement and a precise determination of n will enable Higgs Inflation and S-inflation to be distinguished.

AB - We consider how Higgs Inflation can be observationally distinguished from variants based on gauge singlet scalar extensions of the Standard Model, in particular where the inflaton is a non-minimally coupled gauge singlet scalar (S-inflation). We show that radiative corrections generally cause the spectral index n to decrease relative to the classical value as the Higgs mass is increased if the Higgs boson is the inflaton, whereas n increases with increasing Higgs mass if the inflaton is a gauge singlet scalar. The accuracy to which n can be calculated in these models depends on how precisely the reheating temperature can be determined. The number of Einstein frame e-foldings N is similar in both models, with N = 58-61 for singlet inflation compared with N = 57-60 for Higgs inflation. This allows the spectral index to be calculated to an accuracy \Delta n = 0.001. Provided the Higgs mass is above ~ 135 GeV, a combination of a Higgs mass measurement and a precise determination of n will enable Higgs Inflation and S-inflation to be distinguished.

U2 - 10.1103/PhysRevD.83.123522

DO - 10.1103/PhysRevD.83.123522

M3 - Journal article

VL - 83

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 12

M1 - 123522

ER -