# E8-hydrogen

Rows: 1. Files: E8-hydrogen.csv, E8-hydrogen.json (same rows).
Unit: Hz.

Columns:
- value: measured value
- sigma: 1-sigma uncertainty, same unit
- source: publication (authors, journal, volume, page)
- year: year of publication
- provenance: where the lab first read the number (internal notes name the lab record; the primary source is the source column)
- pooled: yes: used in the combined value; no: shown as a cross-check only

Notes from the record:
- E8 hydrogen 1S-2S interval, Hz.
- not pooled: Matveev et al. 2013 (PRL 110, 230801), same laboratory and method

Source of the data: the publications in the source column.

Licence: Values are numerical results quoted from the cited publications; the publications themselves remain under their publishers' copyright and licences, and the numbers are reproduced here for scholarly citation, each with its source. This compilation (the selection, the columns and the notes): licence to be set by the author; CC BY 4.0 proposed.

sha256 of E8-hydrogen.csv: 5307b3ef05dea8f965f7b36b9ef45ce669f188f2671375e7510422d036312e08
Record file last written: 2026-11-07 19:14:10 IST.