Inflation and supersymmetry breaking in Higgs-R2 supergravity

Aoki, Shuntaro; Lee, Hyun Min; Menkara, Adriana G.

doi:10.1007/jhep10(2021)178

Cited by 6 publications

(3 citation statements)

References 57 publications

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“…Following the discussion in Refs. [8][9][10]26], we change the original frame in Eq. ( 1) to a new frame where the unitarity up to the Planck scale is manifest.…”

Section: The Modelmentioning

confidence: 99%

“…Among the proposed solutions is the ultra-violet (UV) completion of linear sigma model type [6], extending the global symmetry of the Lagrangian in the Higgssigma field space. The extension of the Higgs inflation with an R 2 term has been identified as a linear sigma model [8][9][10], so it is amusing to make a dual field-theory interpretation of the gravitational couplings in this context.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reheating and Dark Matter Freeze-in in the Higgs-$R^2$ Inflation Model

Aoki,

Lee,

Menkara

et al. 2022

Preprint

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We study the post-inflationary dynamics for reheating and freeze-in dark matter in the Higgs-R 2 inflation model. Taking the perturbative approach for reheating, we determine the evolution of the temperature for radiation bath produced during inflation and determine the maximum and reheating temperatures of the Universe. Adopting a singlet scalar dark matter with a conformal non-minimal coupling and a vanishing Higgs-portal coupling, we discuss the freeze-in production of dark matter both from the non-thermal scattering during reheating and the thermal scattering after reheating. We find that the non-thermal inflaton scattering process is dominant for dark matter production in most of the parameter space. The reheating temperature in our model is determined dominantly by the Higgs condensate to be up to about 10 14 GeV and dark matter with masses up to about 10 5 GeV can be produced with a correct relic density.

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“…Following the discussion in Refs. [8][9][10]26], we change the original frame in Eq. ( 1) to a new frame where the unitarity up to the Planck scale is manifest.…”

Section: The Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reheating and Dark Matter Freeze-in in the Higgs-$R^2$ Inflation Model

Aoki,

Lee,

Menkara

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, the original proposal for Higgs inflation itself is lacking a predictive power because a large non-minimal coupling gives rise to unitarity violation below the Planck scale [2][3][4][5]. Thus, linear sigma-model constructions have been proposed for unitarizing the Higgs inflation [6][7][8], and they are found to be dual to the effective theory beyond the Einstein gravity with R 2 term and maintain similar inflationary predictions as in the original Higgs inflation [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Higgs inflation at the pole

Cléry,

Lee,

Menkara

2023

J. High Energ. Phys.

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We propose a novel possibility for Higgs inflation where the perturbative unitarity below the Planck scale is ensured by construction and the successful predictions for inflation are accommodated. The conformal gravity coupling for the Higgs field leads to the proximity of the effective Planck mass to zero in the Jordan frame during inflation, corresponding to a pole in the Higgs kinetic term in the Einstein frame. Requiring the Higgs potential to vanish at the conformal pole in the effective theory in the Jordan frame, we make a robust prediction of the successful Higgs inflation. For a successful Higgs inflation at the pole, we take the running quartic coupling for the Higgs field to be small enough at the inflation scale, being consistent with the low-energy data, but we need a nontrivial extension of the SM with extra scalar or gauge fields in order to keep the running Higgs quartic coupling small during inflation. Performing the perturbative analysis of reheating with the known couplings of the SM particles to the Higgs boson, we show that a concrete realization of the Higgs pole inflation can be pinned down by the reheating processes with a general equation of state for the Higgs inflaton. We illustrate some extensions of the simple Higgs pole inflation to the general pole expansions, the running Higgs quartic coupling in the Standard Model and its extension with a singlet scalar field, a supergravity embedding of the Higgs pole inflation.

show abstract

Reheating and dark matter freeze-in in the Higgs-R2 inflation model

Aoki

Lee

Menkara

et al. 2022

J. High Energ. Phys.

View full text Add to dashboard Cite

We study the post-inflationary dynamics for reheating and freeze-in dark matter in the Higgs-R2 inflation model. Taking the perturbative approach for reheating, we determine the evolution of the temperature for radiation bath produced during reheating and determine the maximum and reheating temperatures of the Universe. Adopting a singlet scalar dark matter with a conformal non-minimal coupling and a vanishing Higgs-portal coupling, we discuss the freeze-in production of dark matter both from the non-thermal scattering during reheating and the thermal scattering after reheating. We find that thermal scattering is dominant for dark matter production in our model due to the high reheating temperature. The reheating temperature in our model is determined dominantly by the Higgs condensate to be up to about 1014 GeV and dark matter with masses up to about 109 GeV can be produced with a correct relic density.

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Inflation and supersymmetry breaking in Higgs-R2 supergravity

Cited by 6 publications

References 57 publications

Reheating and Dark Matter Freeze-in in the Higgs-$R^2$ Inflation Model

Reheating and Dark Matter Freeze-in in the Higgs-$R^2$ Inflation Model

Higgs inflation at the pole

Reheating and dark matter freeze-in in the Higgs-R2 inflation model

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