Constraints on new physics around the MeV scale with cosmological observations

Abstract

We investigate the joint effect of the cosmological phase transitions, thermal light dark matter, and the lepton asymmetry on the big bang nucleosynthesis and cosmic microwave background. We find that all of them can modify the predictions of the effective number of neutrino species and primordial nucleosynthesis. In turn, we observe that: 1) the cosmological observations can exclude slow and strong phase transitions with strength even smaller than $\mathcal{O}(10^{-3}-10^{-2})$; 2) a much larger portion of dark matter mass region is excluded when the phase transition temperature is closer to 1 MeV; and 3) the magnitude of the non-vanishing neutrino lepton asymmetry is limited to be around $\mathcal{O}(10^{-2}-10^{-1})$ depending on the phase transition strength. These phase transitions can produce stochastic gravitational wave background to be probed by pulsar timing array experiments.

10 pages, 7 figures

References in corpus (42)

• Advanced LIGO
• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• Primordial Nucleosynthesis: from precision cosmology to fundamental physics
• The Sphaleron Rate in the Minimal Standard Model
• Towards a precision calculation of $N_{\mathrm{eff}}$ in the Standard Model II: Neutrino decoupling in the presence of flavour oscillations and finite-temperature QED
• Neutrino decoupling including flavour oscillations and primordial nucleosynthesis
• A precision calculation of relic neutrino decoupling
• Refined Bounds on MeV-scale Thermal Dark Sectors from BBN and the CMB
• Primordial black hole production during first-order phase transitions
• BBN And The CMB Constrain Neutrino Coupled Light WIMPs
• Searching For Gravitational Waves From Cosmological Phase Transitions With The NANOGrav 12.5-year dataset
• Fermi-ball dark matter from a first-order phase transition
• The Gravitational-Wave Physics II: Progress
• A new tension in the cosmological model from primordial deuterium?
• EMPRESS. VIII. A New Determination of Primordial He Abundance with Extremely Metal-Poor Galaxies: A Suggestion of the Lepton Asymmetry and Implications for the Hubble Tension
• Detection of Early-Universe Gravitational Wave Signatures and Fundamental Physics
• Maximizing Direct Detection with Highly Interactive Particle Relic Dark Matter
• Constraining cosmological phase transitions with the Parkes Pulsar Timing Array
• Causal gravitational waves as a probe of free streaming particles and the expansion of the Universe
• Sterile neutrinos, lepton asymmetries, primordial elements: how much of each?
• Origin of Sterile Neutrino Dark Matter via Vector Secret Neutrino Interactions
• Leptophilic Dark Matter with $Z^{\prime }$ interactions
• Constraining The Universal Lepton Asymmetry
• Implications for First-Order Cosmological Phase Transitions from the Third LIGO-Virgo Observing Run
• Mono-Neutrino at DUNE: New Signals From Neutrinophilic Thermal Dark Matter
• Changes in Dark Matter Properties After Freeze-Out
• Magnetic field and gravitational waves from the first-order Phase Transition
• Indications for a Nonzero Lepton Asymmetry from Extremely Metal-Poor Galaxies
• Cosmological Constraints on First-Order Phase Transitions
• Primordial lepton asymmetries in the precision cosmology era: Current status and future sensitivities from BBN and the CMB
• Constraining first-order phase transitions with curvature perturbations
• Solving the Hubble tension without spoiling Big Bang Nucleosynthesis
• Filtered pseudo-scalar dark matter and gravitational waves from first order phase transition
• Addendum: Refined bounds on MeV-scale thermal dark sectors from BBN and the CMB
• Cosmology meets functional QCD: First-order cosmic QCD transition induced by large lepton asymmetries
• One $\mu$ to rule them all: CMB spectral distortions can probe domain walls, cosmic strings and low scale phase transitions
• Probing neutrino interactions and dark radiation with gravitational waves
• Towards a full description of MeV dark matter decoupling: a self-consistent determination of relic abundance and $N_{\mathrm{eff}}$
• Large Neutrino Asymmetry from TeV Scale Leptogenesis
• Heavy dark matter and Gravitational waves
• Earth Shielding and Daily Modulation from Electrophilic Boosted Dark Particles
• Dark matter transient annihilations in the early Universe

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