${{\mathit \rho}{(1700)}}$ WIDTH

${{\mathit \eta}}{{\mathit \rho}^{0}}$ MODE INSPIRE search

M065W6
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
• • • We do not use the following data for averages, fits, limits, etc. • • •
$47$ $\pm19$ 13.4k 1
GRIBANOV
2020
CMD3 $1.1 - 2.0$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$132$ $\pm40$ 7.4k 2
ACHASOV
2018
SND $1.22 - 2.00$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$150$ $\pm30$
ANTONELLI
1988
DM2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$282$ $\pm44$ 3
FUKUI
1988
SPEC 8.95 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$
1  Mass and width of the ${{\mathit \rho}{(770)}}$ fixed at 775 and 149 MeV, respectively; solution 2 of model 2, ${{\mathit \eta}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ decays used.
2  From the combined fit of AULCHENKO 2015 and ACHASOV 2018 in the model with the interfering ${{\mathit \rho}{(1450)}}$, ${{\mathit \rho}{(1700)}}$ and ${{\mathit \rho}{(2150)}}$ with the parameters of the ${{\mathit \rho}{(1450)}}$ and ${{\mathit \rho}{(1700)}}$ floating and the mass and width of the ${{\mathit \rho}{(2150)}}$ fixed at 2155 MeV and 320 MeV, respectively. The phases of the resonances are $\pi $, 0 and $\pi $, respectively.
3  Assuming ${{\mathit \rho}^{+}}{{\mathit f}_{{{0}}}{(1370)}}$ decay mode interferes with ${{\mathit a}_{{{1}}}{(1260)}^{+}}{{\mathit \pi}}$ background. From a two Breit-Wigner fit.
  References:
GRIBANOV 2020
JHEP 2001 112 Measurement of the $e^{+}e^{-}\rightarrow\eta\pi^{+}\pi^{-}$ cross section with the CMD-3 detector at the VEPP-2000 collider
ACHASOV 2018
PR D97 012008 Measurement of the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Cross Section with the SND Detector at the VEPP-2000 Collider
ANTONELLI 1988
PL B212 133 Measurement of the Reaction ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ in the Center of Mass Energy Interval 1350-2400 MeV
FUKUI 1988
PL B202 441 Vector Resonances Around 1.6 GeV of the ${{\mathit \eta}}$ ${{\mathit \pi}^{+}}$ ${{\mathit \pi}^{-}}$ System in the ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ Charge Exchange Reaction at 8.95 ${\mathrm {GeV/}}\mathit c$