Observation of the ND4 Schüler band in a neutralized ion beam experiment |
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| Authors: | W. Ketterle P. Graßhoff H. Figger H. Walther |
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| Affiliation: | 1. Max-Planck-Institut für Quantenoptik, D-8046, Garching, Germany
2. Sektion Physik der Universit?t München, D-8046, Garching, Germany
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| Abstract: | The emission of the ND4 Schüler band was observed after neutralization of a mass-selected ND 4 + ion beam. Thus the assignment of this band to the ammonium radical was confirmed. The lifetime of the upper state (3p 2 F 2) was determined to be 4.2 ns, which is much shorter than ab initio values of the radiative lifetime, showing that this state decays predominantly by predissociation. The Schuster band was not observed, neither after neutralization of ND 4 + , nor of ND 3 + . |
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