Cosmological implications of the KATRIN experiment

Details Cosmological implications of the KATRIN experiment Cosmological implications of the KATRIN experiment

2007-09-26

arxiv.org/abs/0709.4152v2

JCAP 0801:007,2008

Astronomy and Astrophysics

Astrophysics

13 pages

Scientific paper

10.1088/1475-7516/2008/01/007

The upcoming Karlsruhe Tritium Neutrino (KATRIN) experiment will put unprecedented constraints on the absolute mass of the electron neutrino, $\mnue$. In this paper we investigate how this information on $\mnue$ will affect our constraints on cosmological parameters. We consider two scenarios; one where $\mnue=0$ (i.e., no detection by KATRIN), and one where $\mnue=0.3$eV. We find that the constraints on $\mnue$ from KATRIN will affect estimates of some important cosmological parameters significantly. For example, the significance of $n_s<1$ and the inferred value of $\Omega_\Lambda$ depend on the results from the KATRIN experiment.

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