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Parity assignment of Λ-doublets in NO X 2Π12

✍ Scribed by F.H. Geuzebroek; M.G. Tenner; A.W. Kleyn; H. Zacharias; S. Stotle

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
549 KB
Volume
187
Category
Article
ISSN
0009-2614

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✦ Synopsis

By applying two separate experimental methods the parity of the two components of the n-doublet of the X 211,,z ground state ofN0 is determined. In the first method the assignment is made by simultaneously measuring one-and two-photon laser induced fluorescence spectra of the A *E+ state and applying the appropriate selection rules. In the second setup hexapole focusing and resonance-enhanced multiphoton ionisation (REMPI) are combined. The upper component of the A-doublet is focused by the hexapole and the total parity of this state is assigned by detection with REMPI. again using the A'Z*tX 211,,z transition. Both methods show that the upper component of the n-doublet of the X 2n,,2 (u=O, .I=O.S) state ofN0 has negative total parity. This assignment supports theoretical results obtained from a perturbation analysis by de Vivie and Peyerimhoff who have calculated that G ?-acts as the major contributor to the A-doublet splitting.

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