${{\mathit K}^{\pm}}$ MASS

INSPIRE   PDGID:
S010M
VALUE (MeV) DOCUMENT ID TECN CHG  COMMENT
$\bf{ 493.677 \pm0.015}$ OUR FIT  Error includes scale factor of 2.8.
$\bf{ 493.677 \pm0.013}$ OUR AVERAGE  Error includes scale factor of 2.4.  See the ideogram below.
$493.696$ $\pm0.007$ 1
DENISOV
1991
CNTR - Kaonic atoms
$493.636$ $\pm0.011$ 2
GALL
1988
CNTR - Kaonic atoms
$493.640$ $\pm0.054$
LUM
1981
CNTR - Kaonic atoms
$493.670$ $\pm0.029$
BARKOV
1979
EMUL $\pm{}$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$
$493.657$ $\pm0.020$ 2
CHENG
1975
CNTR - Kaonic atoms
$493.691$ $\pm0.040$
BACKENSTOSS
1973
CNTR - Kaonic atoms
• • We do not use the following data for averages, fits, limits, etc. • •
$493.631$ $\pm0.007$
GALL
1988
CNTR - ${{\mathit K}^{-}}{}^{}\mathrm {Pb}$ (9$\rightarrow$8)
$493.675$ $\pm0.026$
GALL
1988
CNTR - ${{\mathit K}^{-}}{}^{}\mathrm {Pb}$ (11$\rightarrow$10)
$493.709$ $\pm0.073$
GALL
1988
CNTR - ${{\mathit K}^{-}}{}^{}\mathrm {W}$ (9$\rightarrow$8)
$493.806$ $\pm0.095$
GALL
1988
CNTR - ${{\mathit K}^{-}}{}^{}\mathrm {W}$ (11$\rightarrow$10)
$493.640$ $\pm0.022$ $\pm0.008$ 3
CHENG
1975
CNTR - ${{\mathit K}^{-}}{}^{}\mathrm {Pb}$ (9$\rightarrow$8)
$493.658$ $\pm0.019$ $\pm0.012$ 3
CHENG
1975
CNTR - ${{\mathit K}^{-}}{}^{}\mathrm {Pb}$ (10$\rightarrow$9)
$493.638$ $\pm0.035$ $\pm0.016$ 3
CHENG
1975
CNTR - ${{\mathit K}^{-}}{}^{}\mathrm {Pb}$ (11$\rightarrow$10)
$493.753$ $\pm0.042$ $\pm0.021$ 3
CHENG
1975
CNTR - ${{\mathit K}^{-}}{}^{}\mathrm {Pb}$ (12$\rightarrow$11)
$493.742$ $\pm0.081$ $\pm0.027$ 3
CHENG
1975
CNTR - ${{\mathit K}^{-}}{}^{}\mathrm {Pb}$ (13$\rightarrow$12)
1  Error increased from $0.0059$ based on the error analysis in IVANOV 1992.
2  This value is the authors' combination of all of the separate transitions listed for this paper.
3  The CHENG 1975 values for separate transitions were calculated from their Table$~$7 transition energies. The first error includes a 20$\%$ systematic error in the noncircular contaminant shift. The second error is due to a $\pm5$ eV uncertainty in the theoretical transition energies.

           ${\mathit m}_{{{\mathit K}^{\pm}}}$ (MeV)
References