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${{\mathit \phi}{(2170)}}$ WIDTH

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VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 106 {}^{+24}_{-18}}$ OUR AVERAGE  Error includes scale factor of 2.0.  See the ideogram below. $140$ $\pm36$ $\pm16$ 1 ABLIKIM 2023 AX BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $191$ $\pm28$ $\pm60$ 2 ABLIKIM 2022 L BES3 $2.0 - 3.08$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ $89$ $\pm50$ $\pm5$ 3 ABLIKIM 2021 A BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \eta}}$ $31.1$ ${}^{+21.1}_{-11.6}$ $\pm1.1$ 4 ABLIKIM 2021 T BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}$ $149.0$ $\pm15.6$ $\pm8.9$ 5 ABLIKIM 2020 M BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}}{{\mathit \phi}}$ $106.9$ $\pm32.1$ $\pm28.1$ 6 ABLIKIM 2020 S BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ • • We do not use the following data for averages, fits, limits, etc. • • $35$ $\pm23$ 7 LICHARD 2023 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(nS)}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}{{\mathit \gamma}}$ $96$ ${}^{+17}_{-14}$ $\pm9$ 8 ZHU 2023 A RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}$ $86$ $\pm44$ $\pm51$ 9 ABLIKIM 2021 AP BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ $104$ $\pm24$ $\pm12$ 95 ABLIKIM 2019 I BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{{\mathit f}_{{{0}}}{(980)}}$ $139.8$ $\pm12.3$ $\pm20.6$ 10 ABLIKIM 2019 L BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ $104$ $\pm15$ $\pm15$ 471 ABLIKIM 2015 H BES3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $77$ $\pm15$ $\pm10$ 11, 12 LEES 2012 F BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ $192$ $\pm23$ ${}^{+25}_{-61}$ 4.8k 13 SHEN 2009 BELL 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ $65$ $\pm23$ $\pm17$ 52 ABLIKIM 2008 F BES ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{{\mathit f}_{{{0}}}{(980)}}$ $61$ $\pm50$ $\pm13$ 483 AUBERT 2008 S BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}{{\mathit \gamma}}$ $71$ $\pm21$ 116 14 AUBERT 2007 AK BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ $102$ $\pm27$ 149 14 AUBERT 2007 AK BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$ $58$ $\pm16$ $\pm20$ 201 12, 15 AUBERT,BE 2006 D BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}}{{\mathit \pi}}{{\mathit \gamma}}$ 1  From a fit to the ${{\mathit e}^{+}}{{\mathit e}^{-}}$ cross section between 2.00 and 3.08 GeV with a sum of Breit-Wigner amplitude and a non-resonant contribution. 2  By a simultaneous fit of the ${{\mathit K}_{{{2}}}^{*}{(1430)}^{+}}{{\mathit K}^{-}}$ and ${{\mathit K}^{*}{(892)}^{+}}{{\mathit K}^{-}}$ intermediate channels in a partial-wave analysis, assuming the same structure, modelled with a coherent sum of a nonresonant component and a resonant component by a Breit-Wigner function. 3  From a fit to the cross section between 2.00 and 3.08 GeV with a coherent sum of Breit-Wigner amplitudes, including contributions from ${{\mathit \omega}{(1420)}}$ and ${{\mathit \omega}{(1650)}}/{{\mathit \phi}{(1680)}}$. 4  From a fit to the cross section below 3.5 GeV measured by BaBar and BESIII with a coherent sum of two modified Breit-Wigner amplitudes (${{\mathit \phi}{(1680)}}$ and ${{\mathit \phi}{(2170)}}$) and a nonresonant term. 5  From a fit using a coherent sum of a phase-space modified Breit-Wigner function and a phase-space term. 6  By a simultaneous fit of the intermediate channels in a partial-wave analysis, assuming the same structure, modelled with a coherent sum of a nonresonant component and a resonant component by a Breit-Wigner function. 7  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. 8  From the analysis of the combined measurements of ${\mathit \sigma (}$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{)}$ from BaBar, Belle, BESIII, CMD3. The statistical significance for ${{\mathit \phi}{(2170)}}$ is 7.2 $\sigma $. 9  From a fit to the cross section between 2.00 and 3.08 GeV with a sum of Breit-Wigner amplitude and a nonresonant contribution. The observed structure can be also due to ${{\mathit \rho}{(2150)}}$. 10  The observed structure can be due to both the ${{\mathit \phi}{(2170)}}$ and ${{\mathit \rho}{(2150)}}$. 11  Fit includes interference with the ${{\mathit \phi}{(1680)}}$. 12  From the ${{\mathit \phi}}{{\mathit f}_{{{0}}}{(980)}}$ component. 13  From a fit with two incoherent Breit-Wigners. 14  From the ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit f}_{{{0}}}{(980)}}$ component. 15  Superseded by LEES 2012F.

${{\mathit \phi}{(2170)}}$ WIDTH (MeV)

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