How accurately can we measure the hydrogen 2S->1S transition rate from the cosmological data?
arXiv:1205.5949 · doi:10.1088/1475-7516/2012/06/040
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.
v2: matched with the version accepted in JCAP (minor changes)
References in corpus (6)
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Angular Power Spectra
- High resolution CMB power spectrum from the complete ACBAR data set
- Probing cosmological parameters with the CMB: Forecasts from full Monte Carlo simulations
- How well do we understand cosmological recombination?
- The Accelerated Recombination, and the ACBAR and WMAP data
- Probing the last scattering surface through the recent and future CMB observations