Dark Photon Limits from Patchy Dark Screening of the Cosmic Microwave Background
Dark photons that kinetically mix with the Standard Model photon give rise to new spectral anisotropies (patchy dark screening) in the cosmic microwave background (CMB) due to conversion of photons to dark photons within large-scale structure. We utilize predictions for this patchy dark screening signal to provide the tightest constraints to date on the dark photon kinetic mixing parameter [ϵ≲4.5×10^{-8} (95% confidence level)] over the mass range 10^{-13} eV≲m_{A^{'}}≲10^{-11} eV, almost an order of magnitude stronger than previous limits, by applying state-of-the-art component separation techniques to the cross-correlation of Planck CMB and unWISE galaxy survey data.
Authors
- Matthew C. Johnson (ORCID: https://orcid.org/0000-0003-4199-0314)
- Fiona McCarthy (ORCID: https://orcid.org/0000-0002-5389-3565)
- Junwu Huang (ORCID: https://orcid.org/0000-0001-6007-7315)
- J. Colin Hill (ORCID: https://orcid.org/0000-0002-9539-0835)
- Keir K. Rogers
- Dalila Pîrvu (ORCID: https://orcid.org/0000-0003-3326-0418)
Institutions
- University of Waterloo (CA)
- Perimeter Institute (CA)
- University of Toronto (CA)
- York University (CA)
- Flatiron Health (United States) (US)
- Flatiron Institute (US)
- Columbia University (US)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2024-10-03
- DOI
- https://doi.org/10.1103/physrevlett.133.141003
- Citations
- 12
- Primary Topic
- Cosmology and Gravitation Theories
- Type
- article
- Field-Weighted Citation Impact
- 3.98
Funders
- National Science Foundation
- U.S. Department of Energy
- National Aeronautics and Space Administration
- Alfred P. Sloan Foundation
- Simons Foundation
- Innovation, Science and Economic Development Canada
- Government of Canada
- Ontario Ministry of Research, Innovation and Science
- University of Toronto
- Horizon 2020 Framework Programme
- Natural Sciences and Engineering Research Council of Canada
- European Research Council