Data for \(\ce{CH}\) — Methylidyne

Hyperfine Structure (2024-09-17)

For the CH spectroscopy, the notation jεFΩ is employed, where the parity index ε is related to parity p by the relation ε=p(-1)^j-1/2. The quantum number Ω is the projection of j on the O-H axis with Ω=1/2 (F₂) or 3/2 (F₁).

The data from Marinakis et al. (2019) were restricted to the lowest 36 (instead of 60) lowest hyperfine levels for consistency with the data of Dagdigian (2018).