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

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

INSPIRE   JSON  (beta) PDGID:
M065M6
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$1834$ $\pm12$ 13.4k 1
GRIBANOV
2020
CMD3 $1.1 - 2.0$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1840$ $\pm10$ 7.4k 2
ACHASOV
2018
SND $1.22 - 2.00$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1740$ $\pm20$
ANTONELLI
1988
DM2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1701$ $\pm15$ 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