Dark energy and the Boomerang data
| dc.creator | Amendola, Luca | |
| dc.date | 2000-06-21 | |
| dc.date | 2000-10-11 | |
| dc.date.accessioned | 2026-07-07T11:28:41Z | |
| dc.date.available | 2026-07-07T11:28:41Z | |
| dc.description | The recent high-quality Boomerang data allow to test many competing cosmological models. Here I present a seven-parameter likelihood analysis of dark energy models with exponential potential and explicit coupling to dark matter. Such a model is conformally equivalent to a scalar field with non-minimal coupling to gravity. So far, the constraints on a dark energy - dark matter coupling were extremely weak. The Boomerang data constrain the dimensionless coupling $β$ to be smaller than 0.1, an order of magnitude better than previous limits. In terms of the constant $ξ$ of non-minimally coupled theories, this amounts to $ξ<0.01.$ On the other hand, Boomerang has not enough sensitivity to put constraints on the potential slope. | |
| dc.description | seven pages, two figures. Minor revision to match version accepted in Phys. Rev. Lett | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0006300 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0006300 | |
| dc.identifier | Phys.Rev.Lett.86:196-199,2001 | |
| dc.identifier | doi:10.1103/PhysRevLett.86.196 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/196473 | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Dark energy and the Boomerang data | |
| dc.type | text |