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arXiv · 1205.5949

How accurately can we measure the hydrogen 2S->1S transition rate from the cosmological data?

Viatcheslav Mukhanov·Jaiseung Kim·Pavel Naselsky·Tiziana Trombetti·Carlo Burigana
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Abstract

Recent progress in observational cosmology, and especially the forthcoming PLANCK mission data, open new directions in so-called precision cosmology. In this paper we illustrate this statement considering the accuracy of cosmological determination of the two-quanta decay rate of 2s hydrogen atom state. We show that the PLANCK data will allow us to measure this decay rate significantly better than in the laboratory experiments.

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Viatcheslav Mukhanov, Jaiseung Kim, Pavel Naselsky, Tiziana Trombetti, Carlo Burigana. 2012-06-14. How accurately can we measure the hydrogen 2S->1S transition rate from the cosmological data?. https://doi.org/10.1088/1475-7516%2F2012%2F06%2F040

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