Axion dark matter from heavy quarks
We propose simple scenarios where the observed dark matter abundance arises from decays and scatterings of heavy quarks through freeze-in of an axion-like particle with mass in the 10keV−1MeV range. These models can be tested by future X-ray telescopes, and in some cases will be almost entirely prob...
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| Main Authors: | , , , , , , , |
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| Format: | Article (Journal) Editorial |
| Language: | English |
| Published: |
September 2024
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| In: |
Physics letters
Year: 2024, Volume: 856, Pages: 1-10 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2024.138923 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1016/j.physletb.2024.138923 Verlag, kostenfrei, Volltext: https://www.sciencedirect.com/science/article/pii/S0370269324004817 
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| Author Notes: | Mohammad Aghaie, Giovanni Armando, Angela Conaci, Alessandro Dondarini, Peter Maták, Paolo Panci, Zuzana Šinská, Robert Ziegler |
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| 520 | |a We propose simple scenarios where the observed dark matter abundance arises from decays and scatterings of heavy quarks through freeze-in of an axion-like particle with mass in the 10keV−1MeV range. These models can be tested by future X-ray telescopes, and in some cases will be almost entirely probed by searches for two-body decays K→π+invis. at NA62. As a byproduct, we discuss the cancellation of IR divergencies in flavor-violating scattering processes relevant for thermal axion production, and derive the general contribution to axion-photon couplings from all three light quarks. | ||
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| 700 | 1 | |a Maták, Peter |e VerfasserIn |4 aut | |
| 700 | 1 | |a Panci, Paolo |e VerfasserIn |4 aut | |
| 700 | 1 | |a Šinská, Zuzana |e VerfasserIn |4 aut | |
| 700 | 1 | |a Ziegler, Robert |e VerfasserIn |0 (DE-588)1371642486 |0 (DE-627)1930708807 |4 aut | |
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