Triton magnetic moment to nuclear magneton ratio

$μₜ/μ_N$ = 2.978 962 4650(59)

Value: 2.978 962 4650
Standard uncertainty: 5.9 × 10⁻⁹
Relative uncertainty: 2.0 × 10⁻⁹ (2 parts per billion)
Status: Measured
Symbol: $μₜ/μ_N$
Source: CODATA 2022 via NIST · NIST entry

Use in a calculation

# triton magnetic moment to nuclear magneton ratio, CODATA 2022 (NIST)
triton_magnetic_moment_to_nuclear_magnet = 2.978962465  # standard uncertainty 5.9e-9

# SciPy: scipy.constants.physical_constants['triton mag. mom. to nuclear magneton ratio']

What it is

The magnetic moment of the triton, the nucleus of tritium (one proton and two neutrons), expressed in nuclear magnetons.

How the value changed, 1998–2022

Each point is one CODATA adjustment, plotted as its difference from the 2022 value; the bars show one standard uncertainty (an arrowhead means the bar runs off the chart).

Relative uncertainty

CODATA	Value (uncertainty)	Relative uncertainty	Change from previous
2022	2.978 962 4650(59)	2.0 × 10⁻⁹	−0.1 σ of 2018
2018	2.978 962 4656(59)	2.0 × 10⁻⁹	+0.4 σ of 2014
2014	2.978 962 460(14)	4.7 × 10⁻⁹	+0.3 σ of 2010
2010	2.978 962 448(38)	1.3 × 10⁻⁸	+0.0 σ of 2006
2006	2.978 962 448(38)	1.3 × 10⁻⁸

“Change from previous” is the shift in the value divided by the standard uncertainty of the previous adjustment. Earlier values are converted into the current unit where NIST changed it (for example J s to J Hz⁻¹).