Saturation spectra of low lying states of Nitrogen: reconciling experiment with theory

Details Saturation spectra of low lying states of Nitrogen: reconciling experiment with theory Saturation spectra of low lying states of Nitrogen: reconciling experiment with theory

2010-05-06

arxiv.org/abs/1005.0953v2

Physics

Atomic Physics

14 pages, 8 figures; Modified according to referees suggestions (Eur. Phys. J. D)

Scientific paper

The hyperfine constants of the levels 2p2(3P)3s 4P_J, 2p2(3P)3p 4Po_J and 2p2(3P)3p 4Do_J, deduced by Jennerich et al. [Eur. Phys. J. D 40 (2006) 81] from the observed hyperfine structures of the transitions 2p2(3P)3s 4P_J - 2p2(3P)3p 4Po_J' and 2p2(3P)3s 4P_J - 2p2(3P)3p 4Do_J' recorded by saturation spectroscopy in the near-infrared, strongly disagree with the ab initio values of J\"onsson et al. [J. Phys. B: At. Mol. Opt. Phys. 43 (2010) 115006]. We propose a new interpretation of the recorded weak spectral lines. If the latter are indeed reinterpreted as crossover signals, a new set of experimental hyperfine constants is deduced, in very good agreement with the ab initio predictions.

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