Report/Journal Article

PUBDB-2018-03903

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Self-interacting dark matter with a stable vector mediator

Duerr, M. (Corresponding author)DESY* ; Schmidt-Hoberg, K.DESY* ; Wild, S.DESY*

2018
IOP London

This record in other databases:        

Please use a persistent id in citations: doi:10.1088/1475-7516/2018/09/033  doi:10.3204/PUBDB-2018-03903

Report No.: DESY-18-051; arXiv:1804.10385

Abstract: Light vector mediators can naturally induce velocity-dependent dark matter self-interactions while at the same time allowing for the correct dark matter relic abundance via thermal freeze-out. If these mediators subsequently decay into Standard Model states such as electrons or photons however, this is robustly excluded by constraints from the Cosmic Microwave Background. We study to what extent this conclusion can be circumvented if the vector mediator is stable and hence contributes to the dark matter density while annihilating into lighter degrees of freedom. We find viable parts of parameter space which lead to the desired self-interaction cross section of dark matter to address the small-scale problems of the collisionless cold dark matter paradigm while being compatible with bounds from the Cosmic Microwave Background and Big Bang Nucleosynthesis observations.

Note: (c) IOP Publishing Ltd and Sissa Medialab

---

Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)
2. NewAve - New avenues towards solving the dark matter puzzle (638528) (638528)
3. DFG project 13245592 - SFB 676: Teilchen, Strings und frühes Universum: Struktur von Materie und Raum-Zeit (13245592) (13245592)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2018

---

Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---

---

Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint/Report Duerr, M. (Corresponding author)DESY* ; Schmidt-Hoberg, K.DESY* ; Wild, S.DESY*
Self-interacting dark matter with a stable vector mediator
[10.3204/PUBDB-2018-01957]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

---