${{\mathit \phi}{(2170)}}$ MASS INSPIRE search

2024

BES3

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ ${{\mathit \pi}^{0}}$

$2178$ $\pm20$ $\pm5$

BES3

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$2190$ $\pm19$ $\pm37$

2022

BES3

$2.0 - 3.08$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$

$2163.5$ $\pm6.2$ $\pm3.0$

⁴

2021

BES3

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}$

$2177.5$ $\pm4.8$ $\pm19.5$

⁵

2020

BES3

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}}{{\mathit \phi}}$

$2126.5$ $\pm16.8$ $\pm12.4$

⁶

2020

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. • • •

$2215.7$ $\pm8.3$

⁷

LICHARD

RVUE

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(nS)}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}{{\mathit \gamma}}$

$2169$ $\pm5$ $\pm6$

⁸

ZHU

RVUE

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}$

$2273.7$ $\pm5.7$ $\pm19.3$

⁹

2021

BES3

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$

$2135$ $\pm8$ $\pm9$

2019

BES3

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{{\mathit f}_{{{0}}}{(980)}}$

$2239.2$ $\pm7.1$ $\pm11.3$

¹⁰

2019

BES3

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$

$2200$ $\pm6$ $\pm5$

471

2015

BES3

${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$2180$ $\pm8$ $\pm8$

¹¹ ^{, 12}

LEES

2012

BABR

10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$

$2079$ $\pm13$ ${}^{+79}_{-28}$

4.8k

¹³

SHEN

2009

BELL

10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$

$2186$ $\pm10$ $\pm6$

2008

BES

${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{{\mathit f}_{{{0}}}{(980)}}$

$2125$ $\pm22$ $\pm10$

483

2008

BABR

10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}{{\mathit \gamma}}$

$2192$ $\pm14$

116

¹⁴

2007

BABR

10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$

$2169$ $\pm20$

149

¹⁴

2007

BABR

10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$

$2175$ $\pm10$ $\pm15$

201

¹² ^{, 15}

AUBERT,BE

2006

BABR

10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}}{{\mathit \pi}}{{\mathit \gamma}}$

¹ Seen in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{*}{(892)}^{0}}{{\overline{\mathit K}}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ ${{\mathit \pi}^{0}}$ with a significance of 3.2$\sigma $.

² 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.

³ 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.

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.

References:

2024AN

JHEP 2401 180

Measurement of the $e^{+}e^{-} \to K_{S}^{0} K_{L}^{0} \pi^{0}$ cross sections from $\sqrt{s}=$ 2.000 to 3.080 GeV

2023AX

PR D108 032011

Measurement of

e^{+} e^{-} ? ? ?^{+} ?^{-}

cross sections at center-of-mass energies from 2.00 to 3.08�GeV

LICHARD

PR D108 092005

New narrow resonance in the $e^+ e^- \to \phi\eta$ data by Belle collaboration

ZHU

2023A

CP C47 113003

Determination of the resonant parameters of excited vector strangenia with the $e^{+}e^{-}\to\eta\phi$ data

2022L

JHEP 2207 045

Measurement of $e^{+}e^{-} \to K^{+}K^{-}\pi^{0}$ cross section and observation of a resonant structure

2021AP

PR D104 092014

Cross section measurement of $e^{+}e^{-} \to K_{S}^{0}K_{L}^{0}$ at $\sqrt{s}=2.00-3.08~{GeV}$

2021T

PR D104 032007

Study of the process $e^{+}e^{-}\rightarrow\phi\eta$ at center-of-mass energies between 2.00 and 3.08 GeV

2020S

PRL 124 112001

Observation of a Resonant Structure in $e^{+}e^{-} \to K^{+}K^{-}\pi^{0}\pi^{0}$

2020M

PR D102 012008

Observation of a structure in $e^{+}e^{-} \to \phi \eta^{\prime}$ at $\sqrt{s}$ from 2.05 to 3.08 GeV

2019L

PR D99 032001

Measurement of $e^{+} e^{-} \rightarrow K^{+} K^{-}$ cross section at $\sqrt{s} = 2.00 - 3.08$ GeV

2019I

PR D99 012014

Observation of $e^+ e^- \to \eta Y(2175)$ at center-of-mass energies above 3.7 GeV

2015H

PR D91 052017

Study of ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ at BESIII

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 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

2008F

PRL 100 102003

Observation of ${{\mathit Y}{(2175)}}$ in ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{{\mathit f}_{{{0}}}{(980)}}$

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