# E9-antimatter

Rows: 1. Files: E9-antimatter.csv, E9-antimatter.json (same rows).
Unit: g (local free-fall acceleration).

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:
- E9 free fall of antihydrogen, in units of g.

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 E9-antimatter.csv: 653b71dcc5f9eb57cb7ed39b2562c6779df6e25f073e6e7fff5b43814c896dd5
Record file last written: 2026-11-07 19:14:28 IST.