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PeV-scale Supersymmetry from New Inflation

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arxiv 1203.0323 v2 pith:7PGE2RKV submitted 2012-03-01 hep-ph astro-ph.CO

Kazunori Nakayama , Fuminobu Takahashi This is my paper · ORCID
classification hep-phastro-ph.CO
keywords inflationaroundbosonbreakinghiggsinflatonscalesupersymmetric
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We show that heavy supersymmetric particles around O(100) TeV to O(1) PeV naturally appear in new inflation in which the Higgs boson responsible for the breaking of U(1)B-L plays the role of inflaton. Most important, the supersymmetric breaking scale is bounded above by the inflationary dynamics, in order to suppress the Coleman-Weinberg potential which would otherwise spoil the slow-roll inflation. Our scenario has rich phenomenological and cosmological implications: the Higgs boson mass at around 125 GeV can be easily explained, non-thermal leptogenesis works automatically, the gravitino production from inflaton decay is suppressed, the dark matter is either the lightest neutralino or the QCD axion, and the upper bound on the inflation scale for the modulus stabilization can be marginally satisfied.

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Cited by 4 Pith papers

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

  1. Gravitational Waves from Metastable Cosmic Strings in Supersymmetric New Inflation Model

    hep-ph 2024-11 conditional novelty 6.0 of 10

    A supersymmetric new inflation model with a two-step SU(2) to U(1) to nothing symmetry breaking yields metastable cosmic strings with GUT-scale tension, able to match the PTA signal while evading LIGO-Virgo-KAGRA cons...

  2. Stochastic inflation with an extremely large number of $e$-folds

    hep-ph 2019-08 accept novelty 6.0 of 10

    A shallow local minimum added to a hilltop inflation potential can make the typical number of e-folds as large as 10^(10^10), enough for light scalars to reach Bunch-Davies equilibrium.

  3. Induced-Gravity Palatini-Like Higgs Inflation in Supergravity Confronts ACT DR6

    hep-ph 2026-02 unverdicted novelty 5.0 of 10

    A Palatini-supergravity Higgs-inflation model with induced gravity predicts a scalar spectral index ns≈0.972-0.974, consistent with ACT DR6, and favors split supersymmetry with gravitino mass 40-60 PeV.

  4. High Frequency Spectrum of Primordial Gravitational Waves

    hep-ph 2026-01 unverdicted novelty 5.0 of 10

    High-frequency primordial gravitational waves extend to higher frequencies due to post-inflation inflaton dynamics, and their detailed spectrum shape can distinguish inflation models.

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