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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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Bibliographic Details
Main Authors: Aghaie, Mohammad (Author) , Armando, Giovanni (Author) , Conaci, Angela (Author) , Dondarini, Alessandro (Author) , Maták, Peter (Author) , Panci, Paolo (Author) , Šinská, Zuzana (Author) , Ziegler, Robert (Author)
Format: Article (Journal) Editorial
Language:English
Published: September 2024
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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Summary: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.
Item Description:Online verfügbar: 31. Juli 2024, Artikelversion: 8. August 2024
Gesehen am 16.07.2025
Physical Description:Online Resource
ISSN:1873-2445
DOI:10.1016/j.physletb.2024.138923

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