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

INSPIRE   JSON  (beta) PDGID:
M103W
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 88 {}^{+26}_{-21}}$ OUR AVERAGE  Error includes scale factor of 2.5.  See the ideogram below.
$32.4$ $\pm21.0$ $\pm1.8$ 1
ABLIKIM
2024AN
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ ${{\mathit \pi}^{0}}$
$140$ $\pm36$ $\pm16$ 2
ABLIKIM
2023AX
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$191$ $\pm28$ $\pm60$ 3
ABLIKIM
2022L
 BES3 $2.0 - 3.08$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$
$31.1$ ${}^{+21.1}_{-11.6}$ $\pm1.1$ 4
ABLIKIM
2021T
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}$
$149.0$ $\pm15.6$ $\pm8.9$ 5
ABLIKIM
2020M
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}}{{\mathit \phi}}$
$106.9$ $\pm32.1$ $\pm28.1$ 6
ABLIKIM
2020S
 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
2023A
 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}$
$86$ $\pm44$ $\pm51$ 9
ABLIKIM
2021AP
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$
$104$ $\pm24$ $\pm12$ 95
ABLIKIM
2019I
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{{\mathit f}_{{{0}}}{(980)}}$
$139.8$ $\pm12.3$ $\pm20.6$ 10
ABLIKIM
2019L
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$
$104$ $\pm15$ $\pm15$ 471
ABLIKIM
2015H
 BES3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$77$ $\pm15$ $\pm10$ 11, 12
LEES
2012F
 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
2008F
 BES ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \phi}}{{\mathit f}_{{{0}}}{(980)}}$
$61$ $\pm50$ $\pm13$ 483
AUBERT
2008S
 BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}{{\mathit \gamma}}$
$71$ $\pm21$ 116 14
AUBERT
2007AK
 BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$
$102$ $\pm27$ 149 14
AUBERT
2007AK
 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
2006D
 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.

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