${{\boldsymbol \psi}{(4260)}}$ MASS

INSPIRE search
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$4209.1$ $\pm6.8$ $\pm7.0$ 1
ZHANG
2017B
RVUE $e^+e^-\to\pi^+\pi^-\psi(2S)$
$4223.3$ $\pm1.6$ $\pm2.5$ 2
ZHANG
2017C
RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ or ${{\mathit \psi}{(2S)}}$
$4258.6$ $\pm8.3$ $\pm12.1$ 3
LIU
2013B
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$
$4245$ $\pm5$ $\pm4$ 4
LEES
2012AC
BABR 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$
$4247$ $\pm12$ ${}^{+17}_{-32}$ 5, 3
YUAN
2007
BELL 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$
$4284$ ${}^{+17}_{-16}$ $\pm4$ 13.6
HE
2006B
CLEO $9.4 - 10.6$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$
$4259$ $\pm8$ ${}^{+2}_{-6}$ 125 6
AUBERT,B
2005I
BABR 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$
1  From a three-resonance fit.
2  From a combined fit of BELLE, BABAR and BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ and ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ data.
3  From a two-resonance fit.
4  From a single-resonance fit. Supersedes AUBERT,B 2005I.
5  Superseded by LIU 2013B.
6  From a single-resonance fit. Two interfering resonances are not excluded. Superseded by LEES 2012AC.
References:
ZHANG 2017B
PR D96 054008 Revisiting the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(3686)}}$ Line Shape
ZHANG 2017C
EPJ C77 727 Combined Fit to the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ and ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(3686)}}$ Line Shape
LIU 2013B
PRL 110 252002 Study of ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ and Observation of a Charged Charmonium-like State at Belle
LEES 2012AC
PR D86 051102 Study of the Reaction ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ via Initial-State Radiation at BABAR
YUAN 2007
PRL 99 182004 Measurement of the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ Cross Section Via Initial-State Radiation at Belle
HE 2006B
PR D74 091104 Confirmation of the ${{\mathit Y}{(4260)}}$ Resonance Production in Initial State Radiation
AUBERT,B 2005I
PRL 95 142001 Observation of a Broad Structure in the ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ Mass Spectrum around 4.26 GeV/$\mathit c{}^{2}$