${{\mathit p}}$ MASS (MeV)

INSPIRE search
The mass is known more precisely in u (atomic mass units) than in MeV. The conversion is: 1 u = 931.494 102 42(28) MeV/c${}^{2}$ (2018 CODATA value, TIESINGA 2021 ).
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$\bf{ 938.27208816 \pm0.00000029}$ OUR EVALUATION  2018 CODATA
$938.27208812$ $\pm0.00000029$ 1
FINK
2021
SPEC Penning trap
$938.27208816$ $\pm0.00000029$
TIESINGA
2021
RVUE 2018 CODATA value
• • We do not use the following data for averages, fits, limits, etc. • •
$938.2720813$ $\pm0.0000058$
MOHR
2016
RVUE 2014 CODATA value
$938.272046$ $\pm0.000021$
MOHR
2012
RVUE 2010 CODATA value
$938.272013$ $\pm0.000023$
MOHR
2008
RVUE 2006 CODATA value
$938.272029$ $\pm0.000080$
MOHR
2005
RVUE 2002 CODATA value
$938.271998$ $\pm0.000038$
MOHR
1999
RVUE 1998 CODATA value
$938.27231$ $\pm0.00028$
COHEN
1987
RVUE 1986 CODATA value
$938.2796$ $\pm0.0027$
COHEN
1973
RVUE 1973 CODATA value
1  FINK 2021 quote the more precise mass in atomic mass units.
References:
FINK 2021
PRL 127 243001
TIESINGA 2021
RMP 93 025010 CODATA recommended values of the fundamental physical constants: 2018
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
MOHR 1999
JPCRD 28 1713 CODATA Recommended Values of the Fundamental Physical Constants: 1998;
Also
RMP 72 351 CODATA Recommended Values of the Fundamental Physical Constants: 1998
COHEN 1987
RMP 59 1121 CODATA Fundamental Physical Constants 1986 Adjustments
COHEN 1973
JPCRD 2 664 Comment{CODATA}: The 1973 Least Squares Adjustment of the Fundamental Constants