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Measuring the cosmological density perturbation

Abstract:
Precision measurements of anisotropies in the cosmic microwave background and of the clustering of large-scale structure have supposedly confirmed that the primordial density perturbation has a (nearly) scale-invariant spectrum. However this conclusion is based on assumptions about the world model and the nature of the dark matter. Physical models of inflation suggest that the spectrum may not in fact be scale-free, which would imply rather different cosmological parameters on the basis of the same observational data.
Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
Journal:
Nucl.Phys.Proc.Suppl. More from this journal
Volume:
148
Pages:
1-6
Publication date:
2005-03-28
DOI:
ISSN:
0920-5632
Language:
English
Keywords:
Pubs id:
pubs:180127
UUID:
uuid:0bec2441-0b5b-4680-91af-f136f3b27e44
Local pid:
pubs:180127
Source identifiers:
180127
Deposit date:
2012-12-19

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