${{\mathit e}}$ MAGNETIC MOMENT ANOMALY

${{\mathit \mu}_{{{e}}}}/{{\mathit \mu}_{{{B}}}}$ $−$ 1 = ($\mathit g−$2)/2

INSPIRE   PDGID:
S003MM
VALUE ($ 10^{-6} $) DOCUMENT ID TECN CHG  COMMENT
$\bf{ 1159.65218062 \pm0.00000012}$ OUR AVERAGE
$1159.65218059$ $\pm0.00000013$ 1
FAN
2023
MRS Single electron
$1159.65218073$ $\pm0.00000028$
HANNEKE
2008
MRS Single electron
$1159.6521884$ $\pm0.0000043$
VANDYCK
1987
MRS - Single electron
• • We do not use the following data for averages, fits, limits, etc. • •
$1159.65218128$ $\pm0.00000018$
TIESINGA
2021
RVUE 2018 CODATA value
$1159.65218091$ $\pm0.00000026$
MOHR
2016
RVUE 2014 CODATA value
$1159.65218076$ $\pm0.00000027$
MOHR
2012
RVUE 2010 CODATA value
$1159.65218111$ $\pm0.00000074$ 2
MOHR
2008
RVUE 2006 CODATA value
$1159.65218085$ $\pm0.00000076$ 3
ODOM
2006
MRS - Single electron
$1159.6521859$ $\pm0.0000038$
MOHR
2005
RVUE 2002 CODATA value
$1159.6521869$ $\pm0.0000041$
MOHR
1999
RVUE 1998 CODATA value
$1159.652193$ $\pm0.000010$
COHEN
1987
RVUE 1986 CODATA value
$1159.6521879$ $\pm0.0000043$ 4
VANDYCK
1987
MRS + Single positron
1  FAN 2023 report the most accurate measurement of the electron magnetic moment. A one-electron quantum cyclotron is used. We do not propagate at the moment this measurement to the fine structure and other physical constants. When discrepancies in the independent determinations of alpha are resolved, the new measurement uncertainty of 0.13 ppt is available for precise tests for BSM physics.
2  MOHR 2008 average is dominated by ODOM 2006.
3  Superseded by HANNEKE 2008 per private communication with Gerald Gabrielse.
4  This VANDYCK 1987 reault is for a positron. We do not take it into account for the average to avoid the assumption of CPT invariance.
References