What mass are the smallest protohalos?
| dc.creator | Profumo, Stefano | |
| dc.creator | Sigurdson, Kris | |
| dc.creator | Kamionkowski, Marc | |
| dc.date | 2006-03-14 | |
| dc.date.accessioned | 2026-07-07T07:01:06Z | |
| dc.date.available | 2026-07-07T07:01:06Z | |
| dc.description | We calculate the kinetic-decoupling temperature for weakly interacting massive particles (WIMPs) in supersymmetric (SUSY) and universal-extra-dimension (UED) models that can account for the cold-dark-matter abundance determined from cosmic microwave background measurements. Depending on the parameters of the particle-physics model, a wide variety of decoupling temperatures is possible, ranging from several MeV to a few GeV. These decoupling temperatures imply a range of masses for the smallest protohalos much larger than previously thought -- ranging from 10^{-6} earth masses to 10^{2} earth masses. We expect the range of protohalos masses derived here to be characteristic of most particle-physics models that can thermally accommodate the required relic abundance of WIMP dark matter, even beyond SUSY and UED. | |
| dc.description | 5 pages, 4 figures, submitted to Phys. Rev. Lett | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0603373 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0603373 | |
| dc.identifier | Phys.Rev.Lett. 97 (2006) 031301 | |
| dc.identifier | doi:10.1103/PhysRevLett.97.031301 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/108177 | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | What mass are the smallest protohalos? | |
| dc.type | text |