WIMP Dark Matter Inflation with Observable Gravity Waves

Nobuchika Okada; Qaisar Shafi

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WIMP Dark Matter Inflation with Observable Gravity Waves

Nobuchika Okada, Qaisar Shafi

High Energy Physics - Phenomenology · Submitted 9 Jul 2010

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We present a successful inflation model based on $\lambda \phi^4$ potential in which a Standard Model (SM) singlet inflaton $\phi$, with mass of around a TeV or less, also plays the role of a weakly interacting scalar dark matter particle (WIMP).

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What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.19 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.98 · compares with prior results 0.25 · mentions code or data availability 0.02.

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We present a successful inflation model based on $\lambda \phi^4$ potential in which a Standard Model (SM) singlet inflaton $\phi$, with mass of around a TeV or less, also plays the role of a weakly interacting scalar dark matter particle (WIMP). The WIMP relic abundance generated after inflation is in accord with the current observations. The spectral index $n_s$ lies within the WMAP 1-$\sigma$ bounds, while the Planck satellite may observe the tensor-to-scalar ratio, a canonical measure of gravity waves, which we estimate lies between 0.003 and 0.007.An unbroken $Z_2$ parity ensures that the scalar WIMP is absolutely stable.

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#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We present a successful inflation model based on $\lambda \phi^4$ potential in which a Standard Model (SM) singlet inflaton $\phi$, with mass of around a TeV or less, also plays the role of a weakly interacting scalar dark matter particle (WIMP).	contribution 0.98	0.92	0.54	asserted 1.00
s1	The WIMP relic abundance generated after inflation is in accord with the current observations.	result 0.99	0.78	0.16	asserted 0.98
s2	The spectral index $n_s$ lies within the WMAP 1-$\sigma$ bounds, while the Planck satellite may observe the tensor-to-scalar ratio, a canonical measure of gravity waves, which we estimate lies between 0.003 and 0.007.An unbroken $Z_2$ parity ensures that the scalar WIMP is absolutely stable.	result 1.00	0.85	0.28	hedged possibility 0.79

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.79.

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The paper

Original abstract

We present a successful inflation model based on $\lambda \phi^4$ potential in which a Standard Model (SM) singlet inflaton $\phi$, with mass of around a TeV or less, also plays the role of a weakly interacting scalar dark matter particle (WIMP). The WIMP relic abundance generated after inflation is in accord with the current observations. The spectral index $n_s$ lies within the WMAP 1-$\sigma$ bounds, while the Planck satellite may observe the tensor-to-scalar ratio, a canonical measure of gravity waves, which we estimate lies between 0.003 and 0.007.An unbroken $Z_2$ parity ensures that the scalar WIMP is absolutely stable.

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References

Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

TeV scale leptogenesis, inflaton dark matter and neutrino mass in a scotogenic model
hep-ph 2018-10 conditional novelty 5.0 of 10

A single scotogenic model is argued to fit inflation, dark matter, leptogenesis, and neutrino masses simultaneously, with dark matter between 1.25 and 1.60 TeV and the lightest singlet fermion near 10 TeV.
The ALP miracle: unified inflaton and dark matter
hep-ph 2017-02 conditional novelty 5.0 of 10

One axion-like particle with mass of order 0.01 eV and photon coupling of order 10^-11 GeV^-1 can simultaneously drive inflation, reheat the universe, and account for dark matter.
Higgs Portal Inflation
hep-ph 2011-05 conditional novelty 5.0 of 10

A mixed Higgs-singlet inflaton is viable only for a restricted set of quartic couplings, and the negative portal coupling that mixed inflation prefers typically yields two mixed Higgs-like states at the LHC.
The ALP miracle revisited
hep-ph 2017-10 conditional novelty 4.0 of 10

A single axion-like particle with mass 0.01 to 1 eV and photon coupling of order 10^-11 GeV^-1 can plausibly drive inflation and account for dark matter, a window testable by next-generation axion experiments.
Nonperturbative Dynamics Of Reheating After Inflation: A Review
hep-ph 2014-10 accept novelty 2.0 of 10

The review synthesizes the nonperturbative physics of post-inflation reheating, from parametric preheating through nonlinear fragmentation and thermalization, and surveys models and observables.

Show 1 more citing papers

The Higgs field as an inflaton
hep-ph 2013-07 accept novelty 2.0 of 10

The Standard Model Higgs boson, given a large non-minimal coupling to gravity, produces an inflationary potential whose predicted spectral index and tensor-to-scalar ratio match Planck, at the price of an unknown ultr...

How the literature uses it

22 arXiv papers cite this in 23 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 10 sentences without a confident label

Compares with it 2 papers

We further discuss the differences from the pure Higgs [ref] and singlet inflation [ref] , and present an example of the unitary completion of our model.

Higgs Portal Inflation · Introduction · 0.95
In this sense, the model we propose is quite economical:[ A similar model was proposed in Refs. [ref] in the context of inflation with non-minimal coupling to gravity [ref] .

Dark Matter Chaotic Inflation in Light of BICEP2 · Introduction and Summary · 0.92

Cites it as background 11 papers

The resulting gauge singlet inflation model was first considered in [ref] , where it was called S-inflation (see also [ref] ).[The case of singlet DM added to Higgs Inflation was considered in [ref] .] All non-minimally coupled scalar field inflation models based on the SBB model are identical at the classical level but differ once quantum corrections to the inflaton potential are included.

WIMP Dark Matter and Unitarity-Conserving Inflation via a Gauge Singlet Scalar · Introduction · 0.89
(See also [ref] .) The original motivation was provided by the gauge singlet scalar dark matter model [ref] .

The 750 GeV Resonance as Non-Minimally Coupled Inflaton: Unitarity Violation and Why the Resonance is a Real Singlet Scalar · Introduction · 0.86
The possibility that a single particle could play the dual roles of inflaton and dark matter was mentioned in Refs. [ref] , and studied with more detail in Refs. [ref] .

WIMPflation · Introduction · 0.85

What it cites · 37 sentences without a confident label

Builds on 2 papers

In this letter we propose a successful and relatively simple scenario of WIMP dark matter inflation by merging together ideas from [ref] and [ref] .

Tensor to Scalar Ratio in Non-Minimal $\phi^4$ Inflation · Introduction · 0.94
In this letter we propose a successful and relatively simple scenario of WIMP dark matter inflation by merging together ideas from [ref] and [ref] .

Can WIMP Dark Matter overcome the Nightmare Scenario? · Introduction · 0.94

Uses the method or tool of 4 papers

Following [ref] , we employ non-minimal quartic inflation in which a gravitational coupling of the inflaton to the curvature scalar is included.

Tensor to Scalar Ratio in Non-Minimal $\phi^4$ Inflation · Introduction · 0.97
In the Einstein frame with a canonical gravity sector, the kinetic energy of $ϕ$ can be made canonical by defining a new field $σ$ [ref] , (d σ/d ϕ)^-2 = ( 1 + ξϕ^2/m_P^2 )^2/1+(6 ξ+1)ξϕ^2/m_P^2.

Running Inflation in the Standard Model · Introduction · 0.93
(3) We have considered the preheating scenario after inflation, following [ref] and [ref] , which allows the transition to a radiation dominated universe.

Inflation, dark matter and dark energy in the string landscape · Introduction · 0.92

Uses data or values from 1 paper

V_E/24 π^2 m_P^2 ϵ |_k_0, which should satisfy the WMAP normalization, $Δ_ℛ^2 = (2.43±0.11)×10^-9$ [ref] , at $k_0 = 0.002 Mpc^-1$.

Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation · Introduction · 0.95

Compares with 2 papers

In [ref] , a comprehensive study of certain aspects of this model were presented, and where there is overlap with our work, the results appear to be in broad agreement.

Gauge singlet scalar as inflaton and thermal relic dark matter · Introduction · 0.95
This value marginally exceeds the proposed naturalness bound $V^1/4/Λ< O(1)$ [ref] .

On the Naturalness of Higgs Inflation · Introduction · 0.90

Cites as support 3 papers

In this case, the radiative corrections to the potential is negligible and we can easily obtain $V^1/4/Λ< 1$ for a successful inflation scenario as shown in [ref] .

Tensor to Scalar Ratio in Non-Minimal $\phi^4$ Inflation · Introduction · 1.00
Thus, we expect that the temperature of the universe is high enough for $ϕ$ particles to be in thermal equilibrium, and the standard WIMP dark matter scenario consistent with the WMAP observations can be realized, as shown in recent analysis [ref] .

Can WIMP Dark Matter overcome the Nightmare Scenario? · Introduction · 1.00
In general, the preheating process can be reasonably efficient even for $m_ϕ∼m_h$ [ref] .

Reheating after Inflation · Introduction · 0.96

Cites as background 1 paper

In a separate development, it has been noted by several authors [ref] that a stable SM singlet scalar particle, with mass $∼m_h/2 - 1$ TeV, is a viable cold dark matter candidate (WIMP), provided it has suitable interactions with the SM Higgs doublet $H$ and possibly additional fields.

Gauge Singlet Scalars as Cold Dark Matter · Introduction · 0.81

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