PeV-scale supersymmetry from new inflation

  title={PeV-scale supersymmetry from new inflation},
  author={Kazunori Nakayama and Fuminobu Takahashi},
  journal={Journal of Cosmology and Astroparticle Physics},
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… 

Figures and Tables from this paper

High-scale SUSY from an R-invariant New Inflation in the Landscape
We provide an anthropic reason that the supersymmetry breaking scale is much higher than the electroweak scale as indicated by the null result of collider experiments and observed 125 GeV Higgs
QCD axion window and false vacuum Higgs inflation
The abundance of the QCD axion is known to be suppressed if the Hubble parameter during inflation, H inf , is lower than the QCD scale, and if the inflation lasts sufficiently long. We show that the
Gravitational Waves, μ Term and Leptogenesis from B − L Higgs Inflation in Supergravity
We consider a renormalizable extension of the minimal supersymmetric standard model endowed by an R and a gauged B − L symmetry. The model incorporates chaotic inflation driven by a quartic
Hybrid inflation in high-scale supersymmetry
A bstractIn hybrid inflation, the inflaton generically has a tadpole due to gravitational effects in supergravity, which significantly changes the inflaton dynamics in high-scale supersymmetry. We
Alchemical Inflation: inflaton turns into Higgs
We propose a new inflation model in which a gauge singlet inflaton turns into the Higgs condensate after inflation. The inflationary path is characterized by a moduli space of supersymmetric vacua
Electroweak Vacuum Metastability and Low-scale Inflation
We study the stability of the electroweak vacuum in low-scale inflation models whose Hubble parameter is much smaller than the instability scale of the Higgs potential. In general, couplings between
QCD axion window and low-scale inflation
We show that the upper bound of the classical QCD axion window can be significantly relaxed for low-scale inflation. If the Gibbons-Hawking temperature during inflation is lower than the QCD scale,
Variants of Kinetically Modified Non-Minimal Higgs Inflation in Supergravity
We consider models of chaotic inflation driven by the real parts of a conjugate pair of Higgs superfields involved in the spontaneous breaking of a grand unification symmetry at a scale assuming its
Topological Higgs inflation: Origin of Standard Model criticality
The measured values of the Higgs and top masses and of the strong gauge coupling constant point to the near-criticality of the Standard Model, where two vacua at the electroweak and Planck scales are


Low-scale supersymmetry from inflation
We investigate an inflation model with the inflaton being identified with a Higgs boson responsible for the breaking of U(1)B−L symmetry. We show that supersymmetry must remain a good symmetry at
Inflaton decay in supergravity
We discuss inflaton decay in supergravity, taking account of the gravitational effects. It is shown that, if the inflaton has a nonzero vacuum expectation value, it generically couples to any matter
Inflation and dark matter in the Higgs portal of classically scale invariant Standard Model
A bstractWe consider a minimal classically scale-invariant extension of the Standard Model. In this theory, the Higgs mechanism is triggered and the electroweak symmetry breaking is generated
Axino dark matter from thermal production
The axino is a promising candidate for dark matter in the Universe. It is electrically and colour neutral, very weakly interacting, and could be—as assumed in this study—the lightest supersymmetric