On the determination of neutrino masses and dark energy evolution from the cross-correlation of CMB and LSS
- Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582 (Japan)
We discuss the possibilities of the simultaneous determination of the neutrino masses and the evolution of dark energy from future cosmological observations such as cosmic microwave background (CMB), large scale structure (LSS) and the cross-correlation between them. Recently it has been discussed that there is a degeneracy between the neutrino masses and the equation of state for dark energy. It is also known that there are some degeneracies among the parameters describing the dark energy evolution. We discuss the implications of these for the cross-correlation of CMB with LSS in some detail. Then we consider to what extent we can determine the neutrino masses and the dark energy evolution using the expected data from CMB, LSS and their cross-correlation.
- OSTI ID:
- 22137793
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Vol. 2008, Issue 02; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
- Country of Publication:
- United States
- Language:
- English
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