# ${\boldsymbol m}_{{{\boldsymbol \pi}^{\pm}}}–{\boldsymbol m}_{{{\boldsymbol \pi}^{0}}}$ INSPIRE search

Measurements with an error $>0.01$ MeV have been omitted.
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$\bf{ 4.5936 \pm0.0005}$ OUR FIT
$\bf{ 4.5936 \pm0.0005}$ OUR AVERAGE
$4.59364$ $\pm0.00048$
 1991
CNTR ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit n}}$ , ${{\mathit n}}$ TOF
$4.5930$ $\pm0.0013$
 1986
CNTR ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit n}}$ , ${{\mathit n}}$ TOF
• • • We do not use the following data for averages, fits, limits, etc. • • •
$4.59366$ $\pm0.00048$
 1988 B
CNTR
$4.6034$ $\pm0.0052$
 1966
CNTR
$4.6056$ $\pm0.0055$
 1963
CNTR
References:
 CRAWFORD 1991
PR D43 46 Precision Measurement of the Pion Mass Difference ${\mathit m}_{{{\mathit \pi}^{-}}}–{\mathit m}_{{{\mathit \pi}^{0}}}$
 CRAWFORD 1988B
PL B213 391 Precision Measurement of the Mass Difference ${\mathit m}_{{{\mathit \pi}^{-}}}–{\mathit m}_{{{\mathit \pi}^{0}}}$
 CRAWFORD 1986
PRL 56 1043 Precision Measurement of the Mass Difference ${\mathit m}_{{{\mathit \pi}^{-}}}–{\mathit m}_{{{\mathit \pi}^{0}}}$
 VASILEVSKY 1966
PL 23 281 Mass Difference of the Negative and Neutral Pions
 CZIRR 1963
PR 130 341 Determination of ${{\mathit \pi}}$ -Meson Masses by Neutron Time of Flight