Results 101 to 110 of about 74,976 (149)

From QFT to Boltzmann: freeze-in in the presence of oscillating condensates

open access: yesJournal of High Energy Physics
Scalar dark matter (DM), and axions in particular, have an irreducible abundance of particles produced by freeze-in due to portal interactions with the Standard Model plasma in the early Universe. In addition, vacuum misalignment and other mechanisms can
Wen-Yuan Ai   +3 more
doaj   +1 more source

New insights into axion freeze-in

open access: yesJournal of High Energy Physics
Freeze-in via the axion-photon coupling, g ϕγ , can produce axions in the early Universe. At low reheating temperatures close to the minimum allowed value T reh ≈ T BBN ≈ 10 MeV, the abundance peaks for axion masses m ϕ ≈ T reh.
Mudit Jain   +3 more
doaj   +1 more source

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