@Article{Choi_etal2023, author="Choi, K. Y. and Gong, J. O. and Joh, J. and Park, W. I. and Seto, O.", title="Light cold dark matter from non-thermal decay", journal="Physics Letters B", year="2023", publisher="Elsevier", volume="845", pages="138126--8pp", optkeywords="Dark matter; Non-thermal production; Axion; Q-ball", abstract="We investigate the mass range and the corresponding free-streaming length scale of dark matter produced non-thermally from decay of heavy objects which can be either dominant or sub-dominant at the moment of decay. We show that the resulting dark matter could be very light well below keV scale with a free-streaming length satisfying the Lyman-alpha constraints. We demonstrate two explicit examples for such light cold dark matter.", optnote="WOS:001155183100001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5942), last updated on Mon, 19 Feb 2024 19:48:46 +0000", issn="0370-2693", doi="10.1016/j.physletb.2023.138126", opturl="https://arxiv.org/abs/2304.07462", opturl="https://doi.org/10.1016/j.physletb.2023.138126", language="English" }