Dark photon limits from patchy dark screening of the cosmic microwave background
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866913378674409472 |
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| author | McCarthy, Fiona Pirvu, Dalila Hill, J. Colin Huang, Junwu Johnson, Matthew C. Rogers, Keir K. |
| author_facet | McCarthy, Fiona Pirvu, Dalila Hill, J. Colin Huang, Junwu Johnson, Matthew C. Rogers, Keir K. |
| contents | 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 ($\varepsilon \lesssim 4\times 10^{-8}$ (95% confidence level)) over the mass range $10^{-13} \,\, {\rm eV} \lesssim m_{A^\prime} \lesssim 10^{-11}$ eV, almost an order of magnitude stronger than previous limits, by applying state-of-the-art component separation techniques to the cross-correlation of $\textit{Planck}$ CMB and $\textit{unWISE}$ galaxy survey data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_02546 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Dark photon limits from patchy dark screening of the cosmic microwave background McCarthy, Fiona Pirvu, Dalila Hill, J. Colin Huang, Junwu Johnson, Matthew C. Rogers, Keir K. High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics 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 ($\varepsilon \lesssim 4\times 10^{-8}$ (95% confidence level)) over the mass range $10^{-13} \,\, {\rm eV} \lesssim m_{A^\prime} \lesssim 10^{-11}$ eV, almost an order of magnitude stronger than previous limits, by applying state-of-the-art component separation techniques to the cross-correlation of $\textit{Planck}$ CMB and $\textit{unWISE}$ galaxy survey data. |
| title | Dark photon limits from patchy dark screening of the cosmic microwave background |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2406.02546 |