${{\boldsymbol n}}$ MASS (MeV) INSPIRE search

The mass is known much more precisely in u (atomic mass units) than in MeV. The conversion from u to MeV, 1 u = 931.494$~$0054(57)) MeV/$\mathit c{}^{2}$ (MOHR 2016 , the 2014 CODATA value), involves the relatively poorly known electronic charge.
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$939.5654133$ $\pm0.0000058$
MOHR
2016
RVUE 2014 CODATA value
• • • We do not use the following data for averages, fits, limits, etc. • • •
$939.565379$ $\pm0.000021$
MOHR
2012
RVUE 2010 CODATA value
$939.565346$ $\pm0.000023$
MOHR
2008
RVUE 2006 CODATA value
$939.565360$ $\pm0.000081$
MOHR
2005
RVUE 2002 CODATA value
$939.565331$ $\pm0.000037$ 1
KESSLER
1999
SPEC ${{\mathit n}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit d}}{{\mathit \gamma}}$
$939.565330$ $\pm0.000038$
MOHR
1999
RVUE 1998 CODATA value
$939.56565$ $\pm0.00028$ 2, 3
DIFILIPPO
1994
TRAP Penning trap
$939.56563$ $\pm0.00028$
COHEN
1987
RVUE 1986 CODATA value
$939.56564$ $\pm0.00028$ 4, 3
GREENE
1986
SPEC ${{\mathit n}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit d}}{{\mathit \gamma}}$
$939.5731$ $\pm0.0027$ 3
COHEN
1973
RVUE 1973 CODATA value
1  We use the 1998 CODATA u-to-MeV conversion factor (see the heading above) to get this mass in MeV from the much more precisely measured KESSLER 1999 value of $1.00866491637$ $\pm0.00000000082~$u.
2  The mass is known much more precisely in u: $\mathit m$ = $1.0086649235$ $\pm0.0000000023$ u. We use the 1986 CODATA conversion factor to get the mass in MeV.
3  These determinations are not independent of the ${\mathit m}_{{{\mathit n}}}–{\mathit m}_{{{\mathit p}}}$ measurements below.
4  The mass is known much more precisely in u: $\mathit m$ = $1.008664919$ $\pm0.000000014$ u.
  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
KESSLER 1999
PL A255 221 The Deuteron Binding Energy and the Neutron Mass
MOHR 1999
JPCRD 28 1713 CODATA Recommended Values of the Fundamental Physical Constants: 1998;
DIFILIPPO 1994
PRL 73 1481 Accurate atomic Masses for Fundamental Metrology
COHEN 1987
RMP 59 1121 CODATA Fundamental Physical Constants 1986 Adjustments
GREENE 1986
PRL 56 819 New Determination of the Deuteron Binding Energy and the Neutron Mass
COHEN 1973
JPCRD 2 664 Comment{CODATA}: The 1973 Least Squares Adjustment of the Fundamental Constants