Sterile neutrino dark matter and leptogenesis in Left-Right Higgs Parity

Dunsky, David; Hall, Lawrence J.; Harigaya, Keisuke

doi:10.1007/jhep01(2021)125

Cited by 21 publications

(13 citation statements)

References 78 publications

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“…Here, to estimate the projections for next-generation experiments, we scale the limit from XENON1T according to the projections in the high mass region shown in Figure 5. Another example is sneutrino or higgsino dark matter in supersymmetric theories, where the dark matter mass is predicted to be smaller than the scale at which the standard model Higgs quartic coupling vanishes [1191]. Dark matter scatters with nuclei via tree-level Z boson exchange, generating signals detectable in a 1000 tonne-year exposure even for a dark matter mass as large as 10 12 GeV.…”

Section: Measurements Of Standard Model Parametersmentioning

confidence: 99%

A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics

Aalbers,

Abe,

Aerne

et al. 2022

Preprint

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The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available parameter space for Weakly Interacting Massive Particles (WIMPs), while featuring extensive sensitivity to many alternative dark matter candidates. These detectors can also study neutrinos through neutrinoless double-beta decay and through a variety of astrophysical

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Section: Measurements Of Standard Model Parametersmentioning

confidence: 99%

A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics

Aalbers,

Abe,

Aerne

et al. 2022

Preprint

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show abstract

“…no freeze-out production. However, post-inflationary W R scatterings produce RHNs via freeze-in as [46] n s…”

Section: Restricted Condition C2mentioning

confidence: 99%

Chiral Anomaly in SU(2)${}_R$-Axion Inflation and the New Prediction for Particle Cosmology

Maleknejad

2021

Preprint

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Upon embedding the axion-inflation in the minimal left-right symmetric gauge extension of the SM with gauge group SU (2) L × SU (2) R × U (1) B−L , [arXiv:2012.11516] proposed a new particle physics model for inflation. In this work, we present a more detailed analysis. As a compelling consequence, this setup provides a new mechanism for simultaneous baryogenesis and right-handed neutrino creation by the chiral anomaly of W R in inflation. The lightest right-handed neutrino is the dark matter candidate. This setup has two unknown fundamental scales, i.e., the scale of inflation and left-right symmetry breaking SU (2) R × U (1) B−L → U (1) Y . Sufficient matter creation demands the left-right symmetry breaking scale happens shortly after the end of inflation. Interestingly, it prefers left-right symmetry breaking scales above 10 10 GeV , which is in the range suggested by the non-supersymmetric SO(10) Grand Unified Theory with an intermediate left-right symmetry scale. Although W R gauge field generates equal amounts of right-handed baryons and leptons in inflation, i.e. B − L = 0, in the Standard Model sub-sector B − L SM = 0. A key aspect of this setup is that SU (2) R sphalerons are never in equilibrium, and the primordial B − L SM is conserved by the Standard Model interactions. This setup yields a deep connection between CP violation in physics of inflation and matter creation (visible and dark); hence it can naturally explain the observed coincidences among cosmological parameters, i.e., η B 0.3P ζ and Ω DM 5Ω B . The new mechanism does not rely on the largeness of the unconstrained CP-violating phases in the neutrino sector nor fine-tuned masses for the heaviest right-handed neutrinos. The SU (2) R -axion inflation comes with a cosmological smoking gun; chiral, non-Gaussian, and blue-tilted gravitational wave background, which can be probed by future CMB missions and laser interferometer detectors.

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“…no freeze-out production. However, post-inflationary W R scatterings produce RHNs via freeze-in as [46] n…”

Section: Jhep06(2021)113mentioning

confidence: 99%

Chiral anomaly in SU(2)R-axion inflation and the new prediction for particle cosmology

Maleknejad

2021

J. High Energ. Phys.

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Upon embedding the axion-inflation in the minimal left-right symmetric gauge extension of the SM with gauge group SU(2)L × SU(2)R × U(1)B−L, [1] proposed a new particle physics model for inflation. In this work, we present a more detailed analysis. As a compelling consequence, this setup provides a new mechanism for simultaneous baryogenesis and right-handed neutrino creation by the chiral anomaly of WR in inflation. The lightest right-handed neutrino is the dark matter candidate. This setup has two unknown fundamental scales, i.e., the scale of inflation and left-right symmetry breaking SU(2)R × U(1)B−L→ U(1)Y. Sufficient matter creation demands the left-right symmetry breaking scale happens shortly after the end of inflation. Interestingly, it prefers left-right symmetry breaking scales above 1010 GeV, which is in the range suggested by the non-supersymmetric SO(10) Grand Unified Theory with an intermediate left-right symmetry scale. Although WR gauge field generates equal amounts of right-handed baryons and leptons in inflation, i.e. B − L = 0, in the Standard Model sub-sector B − LSM ≠ 0. A key aspect of this setup is that SU(2)R sphalerons are never in equilibrium, and the primordial B − LSM is conserved by the Standard Model interactions. This setup yields a deep connection between CP violation in physics of inflation and matter creation (visible and dark); hence it can naturally explain the observed coincidences among cosmological parameters, i.e., ηB ≃ 0.3Pζ and ΩDM ≃ 5ΩB. The new mechanism does not rely on the largeness of the unconstrained CP-violating phases in the neutrino sector nor fine-tuned masses for the heaviest right-handed neutrinos. The SU(2)R-axion inflation comes with a cosmological smoking gun; chiral, non-Gaussian, and blue-tilted gravitational wave background, which can be probed by future CMB missions and laser interferometer detectors.

show abstract

Sterile neutrino dark matter and leptogenesis in Left-Right Higgs Parity

Cited by 21 publications

References 78 publications

A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics

A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics

Chiral Anomaly in SU(2)${}_R$-Axion Inflation and the New Prediction for Particle Cosmology

Chiral anomaly in SU(2)R-axion inflation and the new prediction for particle cosmology

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