On the primordial black hole formation in hybrid inflation

Abstract

We revisit the scenario of primordial black hole (PBH) formation from large curvature perturbations generated during the waterfall phase transition in hybrid inflation models. In a minimal setup considered in the literature, the mass and abundance of PBHs are correlated and astrophysical size PBHs tend to be overproduced. This is because a longer length scale for curvature perturbations (or a larger PBH mass) requires a longer waterfall regime with a flatter potential, which results in overproduction of curvature perturbations. However, in this paper, we discuss that the higher-dimensional terms for the inflaton potential affect the dynamics during the waterfall phase transition and show that astrophysical size PHBs of order $10^{17\text{–}23}\mathrm{g}$ (which can explain the whole dark matter) can form in some parameter space consistently with any existing constraints. The scenario can be tested by observing the induced gravitational waves from scalar perturbations by future gravitational wave experiments, such as LISA.

14 pages, 8 figures; v2: minor corrections, figures updated, conclusions unchanged; v3: accepted version, minor corrections

References in corpus (27)

• Primordial Black Holes as Dark Matter
• Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events
• Primordial black hole dark matter from single field inflation
• Primordial Black Holes and Slow-Roll Violation
• Primordial black hole formation in the radiative era: investigation of the critical nature of the collapse
• Stochastic gravitational waves associated with the formation of primordial black holes
• Calculating the mass spectrum of primordial black holes
• Primordial black hole formation from an axion-like curvaton model
• Primordial seeds of supermassive black holes
• Minimally Parametric Power Spectrum Reconstruction from the Lyman-alpha Forest
• Black hole formation and slow-roll inflation
• Primordial black holes as biased tracers
• Signatures of non-gaussianity in the isocurvature modes of primordial black hole dark matter
• Questions on calculation of primordial power spectrum with large spikes: the resonance model case
• Hybrid inflation along waterfall trajectories
• Primordial Black Holes from Multifield Inflation with Nonminimal Couplings
• Hybrid $\alpha$-attractors, primordial black holes and gravitational wave backgrounds
• Formation of intermediate-mass black holes as primordial black holes in the inflationary cosmology with running spectral index
• Reconstruction of the Primordial Power Spectrum using Temperature and Polarisation Data from Multiple Experiments
• No-go Theorem for Scalar-Trispectrum-Induced Gravitational Waves
• Power Spectrum of the Density Perturbations From Smooth Hybrid New Inflation Model
• CMB spectral distortions revisited: a new take on $\mu$ distortions and primordial non-Gaussianities from FIRAS data
• Primordial black hole formation by vacuum bubbles II
• Primordial black holes and gravitational waves induced by exponential-tailed perturbations
• Search for a scalar induced stochastic gravitational wave background in the third LIGO-Virgo observing run
• The long-short wavelength mode coupling tightens primordial black hole constraints
• Gravitational Waves and Primordial Black Holes from Supersymmetric Hybrid Inflation

Cited by in corpus (5)

• The recent gravitational wave observation by pulsar timing arrays and primordial black holes: the importance of non-gaussianities
• Resonant amplification of curvature perturbations in inflation model with periodical derivative coupling
• Meso-inflationary Peccei-Quinn symmetry breaking with non-minimal coupling
• Primordial black holes within Higgs hybrid metric-Palatini approach
• Calculating the power spectrum in stochastic inflation by Monte Carlo simulation and least squares curve fitting