Reheating and Post-inflationary Production of Dark Matter
| Autor: | Marcos A. G. Garcia, Keith A. Olive, Kunio Kaneta, Yann Mambrini |
|---|---|
| Přispěvatelé: | Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), UAM. Departamento de Física Teórica |
| Rok vydání: | 2020 |
| Předmět: |
Particle physics
inflaton: potential Cosmology and Nongalactic Astrophysics (astro-ph.CO) Dark matter FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics dark matter: production Computer Science::Digital Libraries 01 natural sciences 7. Clean energy Exponential expansion General Relativity and Quantum Cosmology High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences Dark Matter 010306 general physics Damped oscillations Physics Inflation (cosmology) Maximum temperature Colliding Beam Accelerators 010308 nuclear & particles physics dark matter: mass temperature: reheating Física Inflaton oscillation inflation: model Cosmology High Energy Physics - Phenomenology [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] Gravitinos Production (computer science) [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Physical Review D Physical Review D, American Physical Society, 2020, 101 (12), pp.123507. ⟨10.1103/PhysRevD.101.123507⟩ Biblos-e Archivo. Repositorio Institucional de la UAM instname Physical Review |
| ISSN: | 1550-7998 1550-2368 |
| DOI: | 10.48550/arxiv.2004.08404 |
| Popis: | We perform a systematic analysis of dark matter production during post-inflationary reheating. Following the period of exponential expansion, the inflaton begins a period of damped oscillations as it decays. These oscillations and the evolution of temperature of the thermalized decay products depend on the shape of the inflaton potential $V(\Phi)$. We consider potentials of the form $\Phi^k$. Standard matter-dominated oscillations occur for $k=2$. In general, the production of dark matter may depend on either (or both) the maximum temperature after inflation, or the reheating temperature, where the latter is defined when the Universe becomes radiation dominated. We show that dark matter production is sensitive to the inflaton potential and depends heavily on the maximum temperature when $k>2$. We also consider the production of dark matter with masses larger than the reheating temperature. Comment: 15 pages, 5 figures |
| Databáze: | OpenAIRE |
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