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${{\mathit \psi}{(4360)}}$ MASS

INSPIRE   PDGID:

M181M

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 4374 \pm7}$ OUR AVERAGE  Error includes scale factor of 2.4.  See the ideogram below. $4371.6$ $\pm2.5$ $\pm9.2$ 1 ABLIKIM 2022 AL BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit D}^{+}}{{\mathit D}^{-}}$ $4298$ $\pm12$ $\pm26$ 2 ABLIKIM 2022 AM BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ $4390.3$ $\pm6.0$ $\pm0.7$ 3 ABLIKIM 2021 AJ BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ $4371.7$ $\pm7.5$ $\pm1.8$ 4 ABLIKIM 2021 AK BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{{c2}}}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit J / \psi}}$ $4382.0$ $\pm13.3$ $\pm1.7$ 5 ABLIKIM 2020 O BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit J / \psi}}$ $4391.5$ ${}^{+6.3}_{-6.8}$ $\pm1.0$ ABLIKIM 2017 G BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit h}_{{{c}}}}$ $4347$ $\pm6$ $\pm3$ 279 6 WANG 2015 A BELL 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ $4340$ $\pm16$ $\pm9$ 37 7 LEES 2014 F BABR 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ • • We do not use the following data for averages, fits, limits, etc. • • $4406.9$ $\pm17.2$ $\pm4.5$ 8 ABLIKIM 2022 R BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \chi}_{{{c1}}}}{{\mathit \gamma}}$ $4320.0$ $\pm10.4$ $\pm7.0$ 9 ABLIKIM 2017 B BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ $4383.8$ $\pm4.2$ $\pm0.8$ 10 ABLIKIM 2017 V BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ $4383.7$ $\pm2.9$ $\pm6.2$ 11 ZHANG 2017 B RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ $4386.4$ $\pm2.1$ $\pm6.4$ 12 ZHANG 2017 C RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ or ${{\mathit \psi}{(2S)}}$ $4355$ ${}^{+9}_{-10}$ $\pm9$ 74 13 LIU 2008 H RVUE 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ $4324$ $\pm24$ 14 AUBERT 2007 S BABR 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ $4361$ $\pm9$ $\pm9$ 47 7 WANG 2007 D BELL 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ 1  From a fit to the cross section for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{+}}{{\mathit D}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ in the range $\sqrt {s }$ = $4.190 - 4.946$ GeV. 2  From a three-resonance fit to the Born cross section in the range $\sqrt {s }$ = $3.7730 - 4.7008$ GeV. Parameters depend on the existence or non-existence of a state near 4.5 GeV. 3  From a three-resonance fit to the Born cross section in the range $\sqrt {s }$ = $4.008 - 4.698$ GeV. 4  From a five-resonance fit to the cross section for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$. 5  From a fit of the measured cross section in the range $\sqrt {s }$ = $3.808 - 4.600$ GeV. 6  From a two-resonance fit. Supersedes WANG 2007D. 7  From a two-resonance fit. 8  From a fit to the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(3823)}}$ cross section between 4.23 and 4.70 GeV with two coherent Breit-Wigner resonances. The data is also consistent with a single peak with mass $4417.5$ $\pm26.2$ $\pm3.5$ MeV and width $245$ $\pm48$ $\pm13$ MeV. 9  From a three-resonance fit. Superseded by ABLIKIM 2022AM. 10  From a fit to the cross section for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ $\rightarrow$ 2 ( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ obtained from 16 center-of-mass energies between 4.008 and 4.600 GeV and comprising 5.1 fb${}^{-1}$. Superseded by ABLIKIM 2021AJ. 11  From a three-resonance fit. 12  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. 13  From a combined fit of AUBERT 2007S and WANG 2007D data with two resonances. 14  From a single-resonance fit. Systematic errors not estimated.

${{\mathit \psi}{(4360)}}$ MASS (MeV)

References