${{\mathit \psi}{(4660)}}$ MASS INSPIRE search

M189M
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 4623 \pm10}$ OUR AVERAGE  Error includes scale factor of 3.7.
$4603.1$ $\pm3.9$ $\pm0.8$ 1
ABLIKIM
2024BN
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}_{{{s}}}^{+}}{{\mathit D}_{{{s2}}}^{*}{(2573)}^{-}}$
$4584$ $\pm14$ $\pm80$ 2
ABLIKIM
2024BN
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}_{{{s}}}^{+}}{{\mathit D}_{{{s1}}}{(2536)}^{-}}$
$4708$ ${}^{+17}_{-15}$ $\pm21$ 3
ABLIKIM
2023BI
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit J / \psi}}$
$4701.8$ $\pm10.9$ $\pm2.7$ 4
ABLIKIM
2023H
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \chi}_{{{c2}}}}$
$4675.3$ $\pm29.5$ $\pm3.5$ 5
ABLIKIM
2023X
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*0}}{{\mathit D}^{*-}}{{\mathit \pi}^{+}}$
$4651.0$ $\pm37.8$ $\pm2.1$ 6
ABLIKIM
2021AJ
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$
$4619.8$ ${}^{+8.9}_{-8.0}$ $\pm2.3$ 66 7
JIA
2020
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit D}_{{{s}}}^{+}}{{\mathit D}_{{{s2}}}^{*}{(2573)}^{-}}$
$4625.9$ ${}^{+6.2}_{-6.0}$ $\pm0.4$ 89 8
JIA
2019A
 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit D}_{{{s}}}^{+}}{{\mathit D}_{{{s1}}}{(2536)}^{-}}$
$4652$ $\pm10$ $\pm11$ 279 9
WANG
2015A
 BELL 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$
$4669$ $\pm21$ $\pm3$ 37 10
LEES
2014F
 BABR 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$
$4634$ ${}^{+8}_{-7}$ ${}^{+5}_{-8}$ 142 11
PAKHLOVA
2008B
 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}_{{{c}}}^{+}}{{\mathit \Lambda}_{{{c}}}^{-}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$4647.9$ $\pm8.6$ $\pm0.8$ 12
ABLIKIM
2022R
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \chi}_{{{c1}}}}{{\mathit \gamma}}$
$4652.5$ $\pm3.4$ $\pm1.1$ 13
DAI
2017
RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}_{{{c}}}^{+}}{{\mathit \Lambda}_{{{c}}}^{-}}$
$4645.2$ $\pm9.5$ $\pm6.0$ 14
ZHANG
2017B
 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$
$4646.4$ $\pm9.7$ $\pm4.8$ 15
ZHANG
2017C
 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ or ${{\mathit \psi}{(2S)}}$
$4661$ ${}^{+9}_{-8}$ $\pm6$ 44 16
LIU
2008H
 RVUE 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$
$4664$ $\pm11$ $\pm5$ 44
WANG
2007D
 BELL 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$
1  Extracted in a fit that employs two BW resonances. The second one at about 4720 MeV shows low statistical significance of 2.7 $\sigma $.
2  Extracted from a fit with two BW functions. The second one located at about 4750 MeV show a low statistical significance of 4.3 $\sigma $.
3  Seen as a peak in the c.m. energy dependence of the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit J / \psi}}$ cross section using 5.85 ${\mathrm {fb}}{}^{-1}$ of data at c.m. energies $4.61 - 4.95$ GeV. Statistical significance is over 5$\sigma $.
4  Fit model parameterized as the coherent sum of a Breit-Wigner resonance and a continuum amplitude term.
5  From a cross-section measurement of ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*0}}{{\mathit D}^{*-}}{{\mathit \pi}^{+}}$ between 4.189 and 4.951 GeV, assuming a coherent sum of 3 Breit-Wigner resonances plus a continuum amplitude. The two other resonances have masses (widths) $4209.6$ $\pm7.5$ ($81.6$ $\pm19.9$) MeV and $4469.1$ $\pm26.4$ ($246.3$ $\pm37.9$) MeV.
6  From a three-resonance fit to the Born cross section in the range $\sqrt {s }$ = $4.008 - 4.698$ GeV.
7  Using ${{\mathit D}_{{{s2}}}^{*}{(2573)}^{-}}$ $\rightarrow$ ${{\overline{\mathit D}}^{0}}{{\mathit K}^{-}}$ decays.
8  From a fit of a Breit-Wigner convolved with a Gaussian.
9  From a two-resonance fit. Supersedes WANG 2007D.
10  From a two-resonance fit.
11  The ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ and ${{\mathit \Lambda}_{{{c}}}^{+}}{{\mathit \Lambda}_{{{c}}}^{-}}$ states are not necessarily the same.
12  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.
13  The pole parameters are extracted from the speed plot.
14  From a three-resonance fit.
15  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.
16  From a combined fit of AUBERT 2007S and WANG 2007D data with two resonances.

           ${{\mathit \psi}{(4660)}}$ MASS (MeV)
  References:
ABLIKIM 2024BN
PRL 133 171903 Study of the decay and production properties of $D_{s1}(2536)$ and $D_{s2}^*(2573)$
ABLIKIM 2023BI
PRL 131 211902 Observation of a vector charmoniumlike state at 4.7 ${\rm GeV}/c^2$ and search for $Z_{cs}$ in $e^+e^-\to K^+K^-J/\psi$
ABLIKIM 2023H
JHEP 2301 132 Study of $e^+e^-\to\gamma\phi J/\psi$ from $ \sqrt{s} $ = 4.600 to 4.951 GeV
ABLIKIM 2023X
PRL 130 121901 Observation of Three Charmonium-like States with $J^{PC}=1^{--}$ in $e^{+}e^{-}\to D^{*0}D^{*-}\pi^{+}+c.c.$ Process
ABLIKIM 2022R
PRL 129 102003 Observation of resonance structures in $e^+e^-\to \pi^+\pi^-\psi_2(3823)$ and mass measurement of $\psi_2(3823)$
ABLIKIM 2021AJ
PR D104 052012 Cross section measurement of $e^+e^-\rightarrow\pi^+\pi^-(3686)$ from $\sqrt{S}=4.0076$ to 4.6984 GeV
JIA 2020
PR D101 091101 Evidence for a vector charmoniumlike state in $e^+e^- \to D^+_sD^*_{s2}(2573)^-+c.c.$
JIA 2019A
PR D100 111103 Observation of a vector charmoniumlike state in $e^+e^- \to D^+_sD_{s1}(2536)^-+c.c.$
DAI 2017
PR D96 116001 Re-examining the ${{\mathit X}{(4630)}}$ Resonance in the Reaction ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}_{{{c}}}^{+}}{{\overline{\mathit \Lambda}}_{{{c}}}^{-}}$
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
WANG 2015A
PR D91 112007 Measurement of ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ via Initial State Radiation at Belle
LEES 2014F
PR D89 111103 Study of the Reaction ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \psi}{(2S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ via Initial-State Radiation at BaBar
LIU 2008H
PR D78 014032 Combined Fit to BABAR and Belle Data on ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$
PAKHLOVA 2008B
PRL 101 172001 Observation of a Near-Threshold Enhancement in the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}_{{{c}}}^{+}}{{\mathit \Lambda}_{{{c}}}^{-}}$ Cross Section using Initial-State Radiation
WANG 2007D
PRL 99 142002 Observation of Two Resonant Structures in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ via Initial-State Radiation at Belle