proton magnetogyric ratio

https://doi.org/10.1351/goldbook.P04912
Atomic fundamental physical constant \(\gamma _{\rm{p}} = 2.675\ 221\ 28(81)\times 10^{8}\ \rm{s}^{-1}\ \rm{T}^{-1}\).
Source:
CODATA Bull. 1986, 63, 1 [Terms] [Book]