${{\mathit \omega}{(1420)}}$ WIDTH

INSPIRE   PDGID:
M125W
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 290 \pm190}$ OUR ESTIMATE
• • We do not use the following data for averages, fits, limits, etc. • •
$440$ $\pm125$ 267 1
ACHASOV
2020B
 SND ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \eta}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$
$104$ $\pm35$ $\pm10$ 824 2
AKHMETSHIN
2017A
 CMD3 $1.4 - 2.0$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \eta}}$
$880$ $\pm170$ 13.1k 3
AULCHENKO
2015A
 SND $1.05 - 1.80$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$480$ $\pm180$ 4
ACHASOV
2010D
 SND $1.075 - 2.0$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \gamma}}$
$130$ $\pm50$ $\pm100$
AUBERT
2007AU
 BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$
$450$ $\pm70$ $\pm70$
AUBERT,B
2004N
 BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$
$870$ ${}^{+500}_{-300}$ $\pm450$ 1.2M 5
ACHASOV
2003D
 RVUE $0.44 - 2.00$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$199$ $\pm15$ 6
HENNER
2002
RVUE $1.2 - 2.0$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \rho}}{{\mathit \pi}}$, ${{\mathit \omega}}{{\mathit \pi}}{{\mathit \pi}}$
$188$ $\pm45$ 177 7
AKHMETSHIN
2000D
 CMD2 $1.2 - 1.38$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$360$ ${}^{+100}_{-60}$ 5095
ANISOVICH
2000H
 SPEC 0.0 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
$240$ $\pm70$ 8
CLEGG
1994
RVUE
$174$ $\pm59$ 315 9
ANTONELLI
1992
DM2 1.34$-$2.4 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \rho}}{{\mathit \pi}}$
1  From a fit with contributions from ${{\mathit \omega}{(1420)}}$, ${{\mathit \omega}{(1650)}}$, and ${{\mathit \phi}{(1680)}}$. The mass of ${{\mathit \omega}{(1420)}}$ is fixed to the PDG 2018 value of 1420 MeV.
2  From a fit of the interfering ${{\mathit \omega}{(1420)}}$ and ${{\mathit \omega}{(1650)}}$ with a relative phase of ${{\mathit \pi}}$ and other parameters floating.
3  From a fit with contributions from ${{\mathit \omega}{(782)}}$, ${{\mathit \phi}{(1020)}}$, ${{\mathit \omega}{(1420)}}$, and ${{\mathit \omega}{(1650)}}$. See ACHASOV 2020A for a further analysis of the ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ data.
4  From a fit of a VMD model with two effective resonances with masses of 1450 MeV and 1700 MeV to describe the excited vector states ${{\mathit \omega}{(1420)}}$, ${{\mathit \rho}{(1450)}}$, ${{\mathit \omega}{(1650)}}$, and ${{\mathit \rho}{(1700)}}$. Systematic errors not evaluated.
5  From the combined fit of ANTONELLI 1992, ACHASOV 2001E, ACHASOV 2002E, and ACHASOV 2003D data on the ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ and ANTONELLI 1992 on the ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ final states. Supersedes ACHASOV 1999E and ACHASOV 2002E.
6  Using results of CORDIER 1981 and preliminary data of DOLINSKY 1991 and ANTONELLI 1992.
7  Using the data of AKHMETSHIN 2000D and ANTONELLI 1992. The ${{\mathit \rho}}{{\mathit \pi}}$ dominance for the energy dependence of the ${{\mathit \omega}{(1420)}}$ and ${{\mathit \omega}{(1650)}}$ width assumed.
8  From a fit to two Breit-Wigner functions and using the data of DOLINSKY 1991 and ANTONELLI 1992.
9  From a fit to two Breit-Wigner functions interfering between them and with the $\omega ,\phi $ tails with fixed ($+,–,+$) phases.
References