Table 2
Spectroscopic parameters for N, J = 2, 3∕2 → 1, 1∕2 hyperfine transitions of CH.
| Transition | Frequency | AE | Eu | |
|---|---|---|---|---|
| Parity | F | [GHz] | 10−2 × [s−1] | [K] |
| −→ + | 1 → 1 | 2006.74892 | 1.117 | 96.31 |
| 1 → 0 | 2006.76263 | 2.234 | ||
| 2 → 1 | 2006.79912 | 3.350 | ||
| + →− (*) | 1 → 1 | 2010.73859 | 1.128 | 96.66 |
| 1 → 0 | 2010.81046 | 2.257 | ||
| 2 → 1 | 2010.81192 | 3.385 | ||
Notes.Columns are quantum number information, frequency, Einstein A coefficient and upper level energy; all taken from the Cologne Database for Molecular Spectroscopy (Müller et al. 2005). The frequencies were determined by Davidson et al. (2001). (*) – indicate the transitions that are not observed in this experiment.
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