تقرير
Light cold dark matter from non-thermal decay
| العنوان: | Light cold dark matter from non-thermal decay |
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| المؤلفون: | Choi, Ki-Young, Gong, Jinn-Ouk, Joh, Junghoon, Park, Wan-Il, Seto, Osamu |
| المصدر: | Physics Letters B, Volume 845, 2023, 138126 |
| سنة النشر: | 2023 |
| المجموعة: | Astrophysics High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics |
| الوصف: | 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. Comment: 8 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.physletb.2023.138126 |
| URL الوصول: | http://arxiv.org/abs/2304.07462 |
| رقم الأكسشن: | edsarx.2304.07462 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.physletb.2023.138126 |
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