${{\mathit \phi}{(1680)}}$ MASS

${{\mathit e}^{+}}{{\mathit e}^{-}}$ PRODUCTION INSPIRE search

M067M1
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 1680 \pm20}$ OUR ESTIMATE
• • • We do not use the following data for averages, fits, limits, etc. • • •
$1663$ $\pm5$ ${}^{+16}_{-4}$
ABLIKIM
2024CB
 BES3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}{{\mathit \pi}^{0}}$
$1656.8$ $\pm4.9$ 1
LICHARD
2023
RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(nS)}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}{{\mathit \gamma}}$
$1683$ $\pm7$ $\pm9$ 2
ZHU
2023
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(nS)}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}{{\mathit \gamma}}$
$1678$ ${}^{+5}_{-3}$ $\pm7$ 3
ZHU
2023A
 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}$
$1673$ $\pm5$ 4
ABLIKIM
2022L
 BES3 $2.0 - 3.08$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$
$1680$ ${}^{+12}_{-13}$ $\pm21$ 1.8k 5
ABLIKIM
2020F
 BES3 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \eta}}$
$1662$ $\pm20$ 6
ACHASOV
2020C
 SND $1.3 - 2.0$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$
$1641$ ${}^{+24}_{-18}$
ACHASOV
2019
SND ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit \eta}}$
$1667$ $\pm5$ $\pm11$ 3k 7
IVANOV
2019A
 CMD3 $1.59 - 2.007$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \eta}}$
$1700$ $\pm23$ 2k 8
ACHASOV
2018A
 SND $1.3 - 2.0$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ ${{\mathit \pi}^{0}}$
$1674$ $\pm12$ $\pm6$ 6.2k 9
LEES
2014H
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ ${{\mathit \gamma}}$
$1733$ $\pm10$ $\pm10$ 10
LEES
2012F
 BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$
$1689$ $\pm7$ $\pm10$ 4.8k 11
SHEN
2009
BELL 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$
$1709$ $\pm20$ $\pm43$ 12
AUBERT
2008S
 BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$1623$ $\pm20$ 948 13
AKHMETSHIN
2003
CMD2 $1.05 - 1.38$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_L^0}$ ${{\mathit K}_S^0}$
$\sim{}\text{ 1500}$ 14
ACHASOV
1998H
 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$, ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$, ${{\mathit K}^{+}}{{\mathit K}^{-}}$
$\sim{}\text{ 1900}$ 15
ACHASOV
1998H
 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$1700$ $\pm20$ 16
CLEGG
1994
RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$, ${{\mathit K}_S^0}$ ${{\mathit K}}{{\mathit \pi}}$
$1657$ $\pm27$ 367
BISELLO
1991C
 DM2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$1655$ $\pm17$ 17
BISELLO
1988B
 DM2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$
$1680$ $\pm10$ 18
BUON
1982
DM1 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$1677$ $\pm12$ 19
MANE
1982
DM1 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}}{{\mathit \pi}}$
1  From a VDM fit to ZHU 2023 ${{\mathit \eta}}{{\mathit \phi}}{{\mathit \gamma}}$ data with two resonances, ${{\mathit \phi}{(1680)}}$, ${{\mathit \phi}{(2170)}}$, and a third resonance with mass $1850.7$ $\pm5.3$ MeV and width $25$ $\pm35$ MeV of 1.7 $\sigma $ statistical evidence.
2  From a fit using a vector meson dominance model with contributions from ${{\mathit \phi}{(1680)}}$, ${{\mathit \phi}{(2170)}}$ and non resonant contribution.
3  From the analysis of the combined measurements of ${\mathit \sigma (}$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{)}$ from BaBar, Belle, BESIII, CMD3.
4  From a partial wave amplitude analysis at $\sqrt {s }$ = 2.125 GeV which includes all the possible intermediate states that match $\mathit J{}^{PC}$ conservation in the subsequent two-body decay. The intermediate states are parameterized with the relativistic Breit-Wigner functions. Statistical error only.
5  Seen in ${{\mathit \psi}{(2S)}}$ decay with branching ratio ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit X}}{{\mathit \eta}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \eta}}$ = ($12.0$ $\pm1.3$ ${}^{+6.5}_{-6.9}$) $ \times 10^{-6}$.
6  From a fit using a vector meson dominance model with contribution from ${{\mathit \rho}{(770)}}$, ${{\mathit \omega}{(782)}}$, ${{\mathit \phi}{(1020)}}$,  ${{\mathit \omega}{(1420)}}$,  ${{\mathit \rho}{(1450)}}$.
7  From a fit with coherent interference of the ${{\mathit \phi}{(1680)}}$ with a non-resonant contribution.
8  Assuming the ${{\mathit K}}{{\overline{\mathit K}}^{*}{(892)}}$ + c.c. dynamics. Systematic uncertainties not estimated.
9  Using a vector meson dominance model with contribution from ${{\mathit \phi}{(1020)}}$, ${{\mathit \phi}{(1680)}}$, and higher mass excitations of ${{\mathit \rho}{(770)}}$ and ${{\mathit \omega}{(782)}}$.
10  Using events with ${{\mathit \pi}}{{\mathit \pi}}$ invariant mass less than 0.85 GeV.
11  From a fit with two incoherent Breit-Wigners.
12  From the simultaneous fit to the ${{\mathit K}}{{\overline{\mathit K}}^{*}{(892)}}$ + c.c. and ${{\mathit \phi}}{{\mathit \eta}}$ data from AUBERT 2008S using the results of AUBERT 2007AK.
13  From the combined fit of AKHMETSHIN 2003 and MANE 1981 also including ${{\mathit \rho}}$, ${{\mathit \omega}}$, and ${{\mathit \phi}}$. Neither isospin nor flavor structure known.
14  Using data from IVANOV 1981, BARKOV 1987, BISELLO 1988B, DOLINSKY 1991, and ANTONELLI 1992.
15  Using the data from BISELLO 1991C.
16  Using BISELLO 1988B and MANE 1982 data.
17  From global fit including ${{\mathit \rho}}$, ${{\mathit \omega}}$, ${{\mathit \phi}}$ and ${{\mathit \rho}{(1700)}}$ assume mass 1570 MeV and width 510 MeV for ${{\mathit \rho}}$ radial excitation.
18  From global fit of ${{\mathit \rho}}$, ${{\mathit \omega}}$, ${{\mathit \phi}}$ and their radial excitations to channels ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$, ${{\mathit K}^{+}}{{\mathit K}^{-}}$, ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ , ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$. Assume mass 1570 MeV and width 510 MeV for ${{\mathit \rho}}$ radial excitations, mass 1570 and width 500 MeV for ${{\mathit \omega}}$ radial excitation.
19  Fit to one channel only, neglecting interference with ${{\mathit \omega}}$, ${{\mathit \rho}{(1700)}}$.
  References:
ABLIKIM 2024CB
PR D110 112014 Study of the decay $J/\psi \to \phi \pi^{0}\eta$
LICHARD 2023
PR D108 092005 New narrow resonance in the $e^+ e^- \to \phi\eta$ data by Belle collaboration
ZHU 2023
PR D107 012006 Study of $e^{+}e^{-}\to\eta\phi$ via Initial State Radiation at Belle
ZHU 2023A
CP C47 113003 Determination of the resonant parameters of excited vector strangenia with the $e^{+}e^{-}\to\eta\phi$ data
ABLIKIM 2022L
JHEP 2207 045 Measurement of $e^{+}e^{-} \to K^{+}K^{-}\pi^{0}$ cross section and observation of a resonant structure
ABLIKIM 2020F
PR D101 032008 Partial wave analysis of $\psi(3686)\to K^{+}K^{-}\eta$
ACHASOV 2020C
EPJ C80 1139 Measurement of the $e^+e^- \to K^+ K^- \pi^0$ cross section with the SND detector
ACHASOV 2019
PR D99 112004 Measurement of the $e^+e^- \to \pi^+\pi^-\pi^0\eta$ cross section below $\sqrt{s}=2$ GeV
IVANOV 2019A
PL B798 134946 Study of the process $e^+e^-{\to}K^+K^-\eta$ with the CMD-3 detector at the VEPP-2000 collider
ACHASOV 2018A
PR D97 032011 Measurement of the $\mathbf{e^+e^- \rightarrow K_S K_L \pi^0}$ cross section in the energy range $\mathbf{\sqrt{s}=1.3-2.0}$ GeV
LEES 2014H
PR D89 092002 Cross Sections for the Reactions ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ , ${{\mathit K}_S^0}{{\mathit K}_L^0}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$, ${{\mathit K}_S^0}{{\mathit K}_S^0}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$, and ${{\mathit K}_S^0}{{\mathit K}_S^0}{{\mathit K}^{+}}{{\mathit K}^{-}}$ from Events with Initial-State Radiation
LEES 2012F
PR D86 012008 Cross Sections for the Reactions ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$, ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$, and ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ Measured using Initial-State Radiation Events
SHEN 2009
PR D80 031101 Observation of the ${{\mathit \phi}{(1680)}}$ and the ${{\mathit Y}{(2175)}}$ in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
AUBERT 2008S
PR D77 092002 Measurements of ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \eta}}$, ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$, and ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$ Cross Sections using Initial State Radiation Events
AKHMETSHIN 2003
PL B551 27 Study of the Process ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_L^0}$ ${{\mathit K}_S^0}$ in the cm Energy Range 1.05-GeV to 1.38-GeV with CMD-2
Also
PAN 65 1222 Measurement of the Cross Section for the Process ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_L^0}$ ${{\mathit K}_S^0}$ in the Energy Region 2E = $1.05 - 1.38$ GeV with the CMD-2 Detector at VEPP-2M
ACHASOV 1998H
PR D57 4334 Isoscalar Resonances with $\mathit J{}^{PC} = 1{}^{--}$ in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ Annihilation
CLEGG 1994
ZPHY C62 455 Higher Vector Meson States Produced in Electron-Positron Annihilation
BISELLO 1991C
ZPHY C52 227 Observation of an Isoscalar Vector Meson at 1650 ${\mathrm {MeV}}/\mathit c{}^{2}$ in the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$ Reaction
BISELLO 1988B
ZPHY C39 13 Study of Reaction ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ in the Energy Range 1350 ${}\leq{}$ $\sqrt {s }{}\leq{}$ 2400 MeV
BUON 1982
PL 118B 221 Interpretation of DM1 Results on ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Annihilation into Exclusive Channels between 1.4 and 1.9 GeV with a ${{\mathit \rho}^{\,'}}{{\mathit \omega}^{\,'}}{{\mathit \phi}^{\,'}}$ Model
MANE 1982
PL 112B 178 Study of the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$ Reaction in the 1.4 to 2.18 GeV Energy Range: A New Observation of an Isoscalar Vector Meson $−$ ${{\mathit \phi}^{\,'}}$(1.65 GeV)