The Hubble Rate Trouble: An Effective Field Theory of Dark Matter

Abstract

The Hubble constant inferred from the 6-parameter fit to the CMB power spectrum conflicts with the value obtained from direct measurements via type Ia supernova and Cepheids observations. We write down effective operators involving spin-0, spin-1/2, and spin-1 dark matter that lead to the relativistic production of dark matter particles at early times, and consequently lead to an increase in the number of relativistic degrees of freedom. This mechanism which is amenable to CMB, BBN, and structure formation observables can sufficiently raise the value of the Hubble constant derived from CMB and reconcile local and CMB probes of the Hubble constant. This mechanism alone increases $H_0$ up to $70\mathrm{km}{\mathrm{s}}^{-1}\mathrm{Mp}{\mathrm{c}}^{-1}$, and with the help of a Phantom-like cosmology, reach $H_0\simeq 71-73\mathrm{km}{\mathrm{s}}^{-1}\mathrm{Mp}{\mathrm{c}}^{-1}$. Lastly, we outline the region of parameter space which reproduces $H_0\simeq 71-73\mathrm{km}{\mathrm{s}}^{-1}\mathrm{Mp}{\mathrm{c}}^{-1}$ while obeying all relevant constraints.

10 pages and 14 figures

References in corpus (19)

• A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
• In the Realm of the Hubble tension $-$ a Review of Solutions
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological Implications from two Decades of Spectroscopic Surveys at the Apache Point observatory
• Cosmic Distances Calibrated to 1% Precision with Gaia EDR3 Parallaxes and Hubble Space Telescope Photometry of 75 Milky Way Cepheids Confirm Tension with LambdaCDM
• The trouble with $H_0$
• Can dark energy evolve to the Phantom?
• Measurements of the Hubble Constant: Tensions in Perspective
• H0LiCOW V. New COSMOGRAIL time delays of HE0435-1223: $H_0$ to 3.8% precision from strong lensing in a flat $\Lambda$CDM model
• Search for New Physics in Electronic Recoil Data from XENONnT
• Measurements of the E-Mode Polarization and Temperature-E-Mode Correlation of the CMB from SPT-3G 2018 Data
• Cosmic Microwave Weak lensing data as a test for the dark universe
• On the use of the local prior on the absolute magnitude of Type Ia supernovae in cosmological inference
• $H_0$ Tension, Phantom Dark Energy and Cosmological Parameter Degeneracies
• A $w-M$ phantom transition at $z_t<0.1$ as a resolution of the Hubble tension
• The Viability of Phantom Dark Energy: A Brief Review
• Determining $H_0$ with Bayesian hyper-parameters
• The Milky Way Cepheid Leavitt law based on Gaia DR2 parallaxes of companion stars and host open cluster populations
• Alternative ideas in cosmology
• The Hubble Tension and Early Dark Energy

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• Seven hints that early-time new physics alone is not sufficient to solve the Hubble tension
• CMB signature of non-thermal Dark Matter produced from self-interacting dark sector
• The H0 trouble: Confronting Non-thermal Dark Matter and Phantom Cosmology with the CMB, BAO, and Type Ia Supernovae data
• A possible solution to the Hubble tension from quantum gravity
• The Hubble Tension: Relativistic Dark Matter Production from Long-lived Particles