Statut | Confirmé |
Série | LPTHE-PPH |
Domaines | hep-ph |
Date | Mardi 17 Décembre 2019 |
Heure | 14:00 |
Institut | LPTHE |
Salle | library |
Nom de l'orateur | Tenkanen |
Prenom de l'orateur | Tommi |
Addresse email de l'orateur | |
Institution de l'orateur | John Hopkins |
Titre | Spectator Dark Matter |
Résumé | The observed dark matter (DM) abundance in the Universe can be fully accounted for by a minimally coupled spectator scalar field that was light during cosmic inflation. In this scenario, dark matter was produced during inflation by amplification of quantum fluctuations of the spectator field. I will discuss the DM isocurvature perturbations that are unavoidably generated in such scenarios and the circumstances under which they are not problematic for the viability of non-thermal DM models. I will also discuss implications of DM isocurvature for structure formation, showing that the model has interesting consequences which allow one to test the scenario. |
Numéro de preprint arXiv | |
Commentaires | |
Fichiers attachés |
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