Foamy dark matter from monodromies
We investigate the dynamics of axion-like particle (ALP) dark matter where the field range is enlarged by a monodromy. The monodromy potential allows sufficient production of dark matter also at larger couplings to the Standard Model particles. The potential typically features a number of “wiggles”...
Gespeichert in:
| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
19 August 2019
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| In: |
Journal of cosmology and astroparticle physics
Year: 2019, Heft: 8, Pages: 1-25 |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2019/08/020 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1088/1475-7516/2019/08/020 Verlag: https://doi.org/10.1088%2F1475-7516%2F2019%2F08%2F020 
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| Verfasserangaben: | Jürgen Berges, Aleksandr Chatrchyan, Joerg Jaeckel |
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| 520 | |a We investigate the dynamics of axion-like particle (ALP) dark matter where the field range is enlarged by a monodromy. The monodromy potential allows sufficient production of dark matter also at larger couplings to the Standard Model particles. The potential typically features a number of “wiggles” that lead to a rapid growth of fluctuations. Using classical-statistical field theory simulations we go beyond the linear regime and treat the system in the non-linear and even non-perturbative regime. For sufficiently strong wiggles the initially homogeneous field is completely converted into fluctuations. The fluctuations correspond to dark matter particles with a non-vanishing velocity and we consider the corresponding restrictions from structure formation as well as the effects on today's dark matter density. | ||
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