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

INSPIRE   PDGID:
M070M
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 3096.900 \pm0.006}$ OUR AVERAGE
$3096.900$ $\pm0.002$ $\pm0.006$ 1
ANASHIN
2015
KEDR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$hadrons
$3096.89$ $\pm0.09$ 502 2
ARTAMONOV
2000
OLYA ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$3096.91$ $\pm0.03$ $\pm0.01$ 3
ARMSTRONG
1993B
 E760 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$
$3096.95$ $\pm0.1$ $\pm0.3$ 193
BAGLIN
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
AAIJ
2015BI
 LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit X}}$
$3096.917$ $\pm0.010$ $\pm0.007$
AULCHENKO
2003
KEDR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$3097.5$ $\pm0.3$
GRIBUSHIN
1996
FMPS 515 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {Be}$ $\rightarrow$ 2 ${{\mathit \mu}}{{\mathit X}}$
$3098.4$ $\pm2.0$ 38k
LEMOIGNE
1982
GOLI 185 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {Be}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{}^{}\mathrm {A}$
$3096.93$ $\pm0.09$ 502 5
ZHOLENTZ
1980
REDE ${{\mathit e}^{+}}{{\mathit e}^{-}}$
$3097.0$ $\pm1$ 6
BRANDELIK
1979C
 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5  Superseded by ARTAMONOV 2000.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