Primordial black holes and magnetic fields in conformal neutrino mass models

Abstract

Sufficiently strong and long-lasting first-order phase transitions can produce primordial black holes (PBHs) that contribute substantially to the dark matter abundance of the Universe, and can produce large-scale primordial magnetic fields. We study these mechanisms in a generic class of conformal ${\mathrm{U}(1)}^{\prime }$ models that also explain active neutrino oscillation data via the type-I seesaw mechanism. We find that phase transitions that occur at seesaw scales between $10^4$ GeV and $10^{11}$ GeV produce gravitational wave signals (from the dynamics of the phase transition and from the decay of cosmic string loops) at LISA/ET that can be correlated with microlensing signals of PBHs at the Roman Space Telescope, while scales near $10^{11}$ GeV can be correlated with Hawking evaporation signals at future gamma-ray telescopes. LISA can probe the entire range of PBH masses between $1\times 10^{-16}{M}_{\odot }$ and $8\times 10^{-11}{M}_{\odot }$ if PBHs fully account for the dark matter abundance. For Z' masses between 5 TeV and 100 TeV, and $\sim 3$ TeV right-handed neutrinos, helical magnetic fields can be produced with magnitudes $\sim 10^{-16}$-$10^{-13}$ G and coherence lengths $\sim 10^{-4}$-$10^{-2}$ Mpc, above current blazar lower bounds.

25 pages, 10 figures, 3 tables. Corrected bug in magnetic field code. Corresponding parameter space changed

References in corpus (31)

• Advanced LIGO
• Laser Interferometer Space Antenna
• The NANOGrav 15-year Data Set: Search for Signals from New Physics
• Upper Limits on the Isotropic Gravitational-Wave Background from Advanced LIGO's and Advanced Virgo's Third Observing Run
• NuFit-6.0: Updated global analysis of three-flavor neutrino oscillations
• Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb${}^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• The Threshold for Primordial Black Hole Formation: a Simple Analytic Prescription
• Primordial black hole production during first-order phase transitions
• Evolution of hydromagnetic turbulence from the electroweak phase transition
• Primordial black holes from strong first-order phase transitions
• A lower bound on intergalactic magnetic fields from time variability of 1ES 0229+200 from MAGIC and Fermi/LAT observations
• On the perturbative expansion at high temperature and implications for cosmological phase transitions
• Primordial Black Holes from Supercooled Phase Transitions
• Magnetic Fields from QCD Phase Transitions
• The Gamma-Ray Window to Intergalactic Magnetism
• Primordial black holes as a probe of strongly first-order electroweak phase transition
• Gravitational waves from first-order phase transitions in LISA: reconstruction pipeline and physics interpretation
• Supercooling in Radiative Symmetry Breaking: Theory Extensions, Gravitational Wave Detection and Primordial Black Holes
• Helical Magnetic Fields from Sphaleron Decay and Baryogenesis
• Constraints on the intergalactic magnetic field using Fermi-LAT and H.E.S.S. blazar observations
• Numerical simulations of the decay of primordial magnetic turbulence
• Primordial black holes as dark matter: Interferometric tests of phase transition origin
• Combined measurement of the Higgs boson mass from the $H\to \gamma \gamma$ and $H\to Z{Z}^{\ast }\to 4\ell$ decay channels with the ATLAS detector using $\sqrt{s}$ = 7, 8 and 13 TeV $pp$ collision data
• Magnetogenesis with gravitational waves and primordial black hole dark matter
• Exploring Critical Overdensity Thresholds in Inflationary Models of Primordial Black Holes Formation
• Stochastic gravitational waves from long cosmic strings
• Curvature Perturbations from First-Order Phase Transitions: Implications to Black Holes and Gravitational Waves
• Parameter study of decaying magnetohydrodynamic turbulence
• Gravitational waves from cosmic superstrings and gauge strings
• Supercooled phase transitions in conformal dark sectors explain NANOGrav data
• Gravitational waves from supercooled phase transitions in conformal Majoron models of neutrino mass

Cited by in corpus (3)

• Thermodynamical uncertainties for primordial black holes from cosmological phase transitions
• Born-Infeld AdS Black Holes Surrounded by Perfect Fluid Dark Matter
• Primordial Black Hole Formation and Multimessenger Signals in a Complex Singlet Extension of the Standard Model