Varying $α$ in the early universe: CMB, LSS and FMA
| dc.creator | Martins, C. J. A. P. | |
| dc.date | 2002-05-06 | |
| dc.date.accessioned | 2026-07-07T02:03:34Z | |
| dc.date.available | 2026-07-07T02:03:34Z | |
| dc.description | I review recent constraints on and claimed detections of a time-varying fine-structure constant $α$, and discuss our own work, particularly on the effects of $α$ in the cosmic microwave background and large-scale structure. Our results are consistent with no variation in $α$ from the epoch of recombination to the present day, and restrict any such variation to be less than about 4%. The forthcoming MAP and Planck experiments will be able to break most of the currently existing degeneracies between $α$ and other parameters, and measure $α$ to better than percent accuracy. | |
| dc.description | 4 pages, uses moriond.sty, contribution to Moriond 2002 cosmology meeting at Les Arcs, France (March 16-23, 2002), to appear in the Proceedings | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0205079 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0205079 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/4430 | |
| dc.subject | Astrophysics | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Varying $α$ in the early universe: CMB, LSS and FMA | |
| dc.type | text |