| Article | |
| Report number | arXiv:1805.01473 ; ULB-TH/18-06 ; CERN-TH-2018-110 ; IFUP-TH/2018 ; ULB-TH-18-06 |
| Title | Super-cool Dark Matter |
| Author(s) | Hambye, Thomas (Brussels U.) ; Strumia, Alessandro (CERN ; INFN, Pisa ; Pisa U.) ; Teresi, Daniele (Brussels U.) |
| Publication | 2018-08-29 |
| Imprint | 2018-05-03 |
| Number of pages | 20 |
| Note | 20 pages, 5 figures. Journal version |
| In: | JHEP 1808 (2018) 188 |
| DOI | 10.1007/JHEP08(2018)188 (publication) |
| Subject category | hep-ph ; Particle Physics - Phenomenology ; Astrophysics and Astronomy ; astro-ph.CO ; Particle Physics - Theory ; hep-th |
| Abstract | In dimension-less theories of dynamical generation of the weak scale, the Universe can undergo a period of low-scale inflation during which all particles are massless and super-cool. This leads to a new mechanism of generation of the cosmological Dark Matter (DM) relic density: super-cooling can easily suppress the amount of DM to the desired level. This is achieved for TeV-scale DM, if super-cooling ends when quark condensates form at the QCD phase transition. Along this scenario, the baryon asymmetry can be generated either at the phase transition or through leptogenesis. We show that the above mechanism takes place in old and new dimension-less models. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2020-2025 The Authors (License: CC-BY-4.0), sponsored by SCOAP³ |
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