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Measuring the baryon content of the universe: BBN vs CMB

Abstract:

The relic abundance of baryons - the only form of stable matter whose existence we are certain of - is a crucial parameter for many cosmological processes, as well as material evidence that there is new physics beyond the Standard Model. We discuss recent determinations of the cosmological baryon density from analysis of the abundances of light elements synthesised at the end of ``the first three minutes'', and from the observed temperature anisotropies imprinted on small angular-scales in th...

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Journal:
in "Frontiers of the Universe", eds L Celnekier and J Tran Thanh Van (The Gioi Publishers, 2004) pp.53-63
Publication date:
2002-05-08
URN:
uuid:831af726-5211-4b30-8d8e-9858123f92dd
Source identifiers:
180096
Local pid:
pubs:180096
Keywords:

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