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arXiv · 0709.4152

Cosmological implications of the KATRIN experiment

Jostein R. Kristiansen·Oystein Elgaroy
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Abstract

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 $Ω_Λ$ depend on the results from the KATRIN experiment.

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Jostein R. Kristiansen, Oystein Elgaroy. 2008-01-02. Cosmological implications of the KATRIN experiment. https://doi.org/10.1088/1475-7516%2F2008%2F01%2F007

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