# ${{\boldsymbol \mu}}/{{\boldsymbol p}}$ MAGNETIC MOMENT RATIO INSPIRE search

This ratio is used to obtain a precise value of the muon mass and to reduce experimental muon Larmor frequency measurements to the muon magnetic moment anomaly. Measurements with an error $>$ $0.00001$ have been omitted. By convention, the minus sign on this ratio is omitted. CODATA values were fitted using their selection of data, plus other data from multiparameter fits.
VALUE DOCUMENT ID TECN CHG  COMMENT
$3.183345142$ $\pm0.000000071$
 2016
RVUE 2014 CODATA value
• • • We do not use the following data for averages, fits, limits, etc. • • •
$3.183345107$ $\pm0.000000084$
 2012
RVUE 2010 CODATA value
$3.183345137$ $\pm0.000000085$
 2008
RVUE 2006 CODATA value
$3.183345118$ $\pm0.000000089$
 2005
RVUE 2002 CODATA value
$3.18334513$ $\pm0.00000039$
 1999
CNTR + HFS in muonium
$3.18334539$ $\pm0.00000010$
 1999
RVUE 1998 CODATA value
$3.18334547$ $\pm0.00000047$
 1987
RVUE 1986 CODATA value
$3.1833441$ $\pm0.0000017$
 1982
CNTR + Precession strob
$3.1833461$ $\pm0.0000011$
 1982
CNTR + HFS splitting
$3.1833448$ $\pm0.0000029$
 1978
CNTR + See KLEMPT 1982
$3.1833403$ $\pm0.0000044$
 1977
CNTR + HFS splitting
$3.1833402$ $\pm0.0000072$
 1973
RVUE 1973 CODATA value
$3.1833467$ $\pm0.0000082$
 1972
CNTR + Precession phase
References:
 MOHR 2016
RMP 88 035009 CODATA Recommended Values of the Fundamental Physical Constants: 2014
 MOHR 2012
RMP 84 1527 CODATA Recommended Values of the Fundamental Physical Constants: 2010
 MOHR 2008
RMP 80 633 CODATA Recomended Values of the Fundamental Physical Constants: 2006
 MOHR 2005
RMP 77 1 NIST Constants
 LIU 1999
PRL 82 711 High Precision Measurements of the Ground State Hyperfine Structure Interval of Muonium and of the Muon Magnetic Moment
 MOHR 1999
JPCRD 28 1713 CODATA Recommended Values of the Fundamental Physical Constants: 1998;
 COHEN 1987
RMP 59 1121 CODATA Fundamental Physical Constants 1986 Adjustments
 KLEMPT 1982
PR D25 652 Measurement of the Magnetic Moment of the Positive Muon by a Stroboscopic Muon Spin Rotation Technique
 MARIAM 1982
PRL 49 993 Higher Precision Measurement of the hfs Interval of Muonium and of the Muon Magnetic Moment
 CAMANI 1978
PL 77B 326 New Determination of the Magnetic Moment of the Positive Muon from Larmor Precession Measurements in Liquid Bromine
 CASPERSON 1977
PRL 38 956 New Precise Value for the Muon Magnetic Moment and Sensitive Test of the Theory of the hfs Interval in Muonium
 COHEN 1973
JPCRD 2 664 Comment{CODATA}: The 1973 Least Squares Adjustment of the Fundamental Constants
 CROWE 1972
PR D5 2145 Precision Measurement of the Magnetic Moment of the Muon