تقرير
Challenges for Inflaton Dark Matter
| العنوان: | Challenges for Inflaton Dark Matter |
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| المؤلفون: | Lebedev, Oleg, Yoon, Jong-Hyun |
| سنة النشر: | 2021 |
| المجموعة: | Astrophysics High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | We examine an intriguing possibility that a single field is responsible for both inflation and dark matter, focussing on the minimal set-up where inflation is driven by a scalar coupling to curvature. We study in detail the reheating process in this framework, which amounts mainly to particle production in a quartic potential, and distinguish thermal and non-thermal dark matter options. In the non-thermal case, the reheating is impeded by backreaction and rescattering, making this possibility unrealistic. On the other hand, thermalized dark matter is viable, yet the unitarity bound forces the inflaton mass into a narrow window close to half the Higgs mass. Comment: 16 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.physletb.2021.136614 |
| URL الوصول: | http://arxiv.org/abs/2105.05860 |
| رقم الأكسشن: | edsarx.2105.05860 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.physletb.2021.136614 |
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