#### ${{\boldsymbol J / \psi}{(1S)}}$ MASS

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
 $\bf{ 3096.900 \pm0.006}$ OUR AVERAGE
$3096.900$ $\pm0.002$ $\pm0.006$ 1
 2015
KEDR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$3096.89$ $\pm0.09$ 502 2
 2000
OLYA ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$3096.91$ $\pm0.03$ $\pm0.01$ 3
 1993 B
E760 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$
$3096.95$ $\pm0.1$ $\pm0.3$ 193
 1987
SPEC ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ X
• • We do not use the following data for averages, fits, limits, etc. • •
$3096.66$ $\pm0.19$ $\pm0.02$ 6.1k 4
 2015 BI
LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit X}}$
$3096.917$ $\pm0.010$ $\pm0.007$
 2003
KEDR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$3097.5$ $\pm0.3$
 1996
FMPS 515 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {Be}$ $\rightarrow$ 2 ${{\mathit \mu}}{{\mathit X}}$
$3098.4$ $\pm2.0$ 38k
 1982
GOLI 185 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {Be}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{}^{}\mathrm {A}$
$3096.93$ $\pm0.09$ 502 5
 1980
REDE ${{\mathit e}^{+}}{{\mathit e}^{-}}$
$3097.0$ $\pm1$ 6
 1979 C
DASP ${{\mathit e}^{+}}{{\mathit e}^{-}}$
 1 Supersedes AULCHENKO 2003 .
 2 Reanalysis of ZHOLENTZ 1980 using new electron mass (COHEN 1987 ) and radiative corrections (KURAEV 1985 ).
 3 Mass central value and systematic error recalculated by us according to Eq.$~$(16) in ARMSTRONG 1993B, using the value for the ${{\mathit \psi}{(2S)}}$ mass from AULCHENKO 2003 .
 4 From a sample of ${{\mathit \eta}_{{c}}{(1S)}}$ and ${{\mathit J / \psi}}$ produced in ${{\mathit b}}$-hadron decays. Systematic uncertainties not estimated.
 5 Superseded by ARTAMONOV 2000 .
 6 From a simultaneous fit to ${{\mathit e}^{+}}{{\mathit e}^{-}}$ , ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ and hadronic channels assuming $\Gamma\mathrm {( {{\mathit e}^{+}} {{\mathit e}^{-}} )}$ = $\Gamma\mathrm {( {{\mathit \mu}^{+}} {{\mathit \mu}^{-}} )}$.
References:
 AAIJ 2015BI
EPJ C75 311 Measurement of the ${{\mathit \eta}_{{c}}{(1S)}}$ Production Cross-Section in Proton-Proton Collisions Via the Decay ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit p}}{{\overline{\mathit p}}}$
 ANASHIN 2015
PL B749 50 Final Analysis of KEDR Data on ${{\mathit J / \psi}}$ and ${{\mathit \psi}{(2S)}}$ Masses
 AULCHENKO 2003
PL B573 63 New Precision Measurement of the ${{\mathit J / \psi}}$ and ${{\mathit \psi}^{\,'}}$ Meson Masses
 ARTAMONOV 2000
PL B474 427 High Precision Mass Measurements in ${{\mathit \psi}}$ and ${{\mathit \Upsilon}}$ Families Revisited
 GRIBUSHIN 1996
PR D53 4723 Production of ${{\mathit J / \psi}}$ and ${{\mathit \psi}{(2S)}}$ Mesons in ${{\mathit \pi}^{-}}{}^{}\mathrm {Be}$ Collisions at 515 ${\mathrm {GeV/}}\mathit c$
 ARMSTRONG 1993B
PR D47 772 Measurement of the ${{\mathit J / \psi}}$ and ${{\mathit \psi}^{\,'}}$ Resonance Parameters in ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilation
 BAGLIN 1987
NP B286 592 ${{\mathit J / \psi}}$ Resonance Formation and Mass Measurement in Antiproton-Proton Annihilations
 LEMOIGNE 1982
PL 113B 509 Measurement of Hadronic Production of the ${{\mathit \chi}_{{1}}{(3507)}^{++}}$ and ${{\mathit \chi}_{{2}}{(3553)}^{++}}$ through Their Radiative Decay to ${{\mathit J / \psi}}$
 ZHOLENTZ 1980
PL 96B 214 High Precision Measurement of the ${{\mathit \psi}}$ and ${{\mathit \psi}^{\,'}}$ Meson Masses
 BRANDELIK 1979C
ZPHY C1 233 Results from DASP on ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Annihilation between 3.1 and 5.2 GeV