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  Communication: Magnetic dipole transitions in the OH A 2Σ+ ← X2Π system

Kirste, M., Wang, X., Meijer, G., Gubbels, K., van der Avoird, A., Groenenboom, G. C., et al. (2012). Communication: Magnetic dipole transitions in the OH A 2Σ+ ← X2Π system. Journal of Chemical Physics, 137(10): 101102. doi:10.1063/1.4751475.

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 Creators:
Kirste, Moritz1, Author           
Wang, Xingan1, Author           
Meijer, Gerard1, Author           
Gubbels, Koos1, 2, 3, Author           
van der Avoird, Ad3, Author
Groenenboom, Gerrit C.3, Author
Meerakker, Sebastiaan Y. T. van de1, 3, Author           
Affiliations:
1Molecular Physics, Fritz Haber Institute, Max Planck Society, ou_634545              
2Institute of Theoretical Physics, University of Cologne, Zülpicher Str. 77, 50937 Cologne, Germany , ou_persistent22              
3Radboud University Nijmegen, Institute for Molecules and Materials, Heijendaalseweg 135, 6525 AJ Nijmegen, The Netherlands, ou_persistent22              

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 Abstract: We report on the observation of magnetic dipole allowed transitions in the well-characterized A 2Σ+ − X 2Π band system of the OH radical. A Stark decelerator in combination with microwave Rabi spectroscopy is used to control the populations in selected hyperfine levels of both Λ-doublet components of the X 2Π3/2, v = 0, J = 3/2 ground state. Theoretical calculations presented in this Communication predict that the magnetic dipole transitions in the A 2Σ+, v = 1 ← X 2Π, v = 0 band are weaker than the electric dipole transitions by a factor of 2.58 × 103 only, i.e., much less than commonly believed. Our experimental data confirm this prediction.

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Language(s): eng - English
 Dates: 2012-07-182012-08-242012-09-112012
 Publication Status: Issued
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1063/1.4751475
 Degree: -

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Title: Journal of Chemical Physics
  Abbreviation : J. Chem. Phys.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Institute of Physics
Pages: - Volume / Issue: 137 (10) Sequence Number: 101102 Start / End Page: - Identifier: ISSN: 0021-9606
CoNE: https://pure.mpg.de/cone/journals/resource/954922836226