${{\mathit \rho}{(1450)}}$ WIDTH

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

INSPIRE   PDGID:
M105W1
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$321$ $\pm27$ 13.4k 1
GRIBANOV
2020
CMD3 $1.1 - 2.0$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$280$ $\pm20$ 7.4k 2
ACHASOV
2018
SND $1.22 - 2.00$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$226$ $\pm44$ 3
AKHMETSHIN
2001B
 CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \gamma}}$
$211$ $\pm31$ 4
AKHMETSHIN
2000D
 CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$230$ $\pm30$
ANTONELLI
1988
DM2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$60$ $\pm15$
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  Using the data of AKHMETSHIN 2001B on ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \gamma}}$, AKHMETSHIN 2000D and ANTONELLI 1988 on ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$.
4  Using the data of ANTONELLI 1988, DOLINSKY 1991, and AKHMETSHIN 2000D. The energy-independent width of the ${{\mathit \rho}{(1450)}}$ and ${{\mathit \rho}{(1700)}}$ mesons assumed.
References