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${{\mathit \omega}{(1420)}}$ 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 2020 B SND ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \eta}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$ $104$ $\pm35$ $\pm10$ 824 2 AKHMETSHIN 2017 A CMD3 $1.4 - 2.0$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \eta}}$ $880$ $\pm170$ 13.1k 3 AULCHENKO 2015 A SND $1.05 - 1.80$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $480$ $\pm180$ 4 ACHASOV 2010 D SND $1.075 - 2.0$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \gamma}}$ $130$ $\pm50$ $\pm100$ AUBERT 2007 AU BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ $450$ $\pm70$ $\pm70$ AUBERT,B 2004 N 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 2003 D 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 2000 D CMD2 $1.2 - 1.38$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $360$ ${}^{+100}_{-60}$ 5095 ANISOVICH 2000 H 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:

ACHASOV 2020B EPJ C80 1008 Study of the process $e^+e^- \to \eta\pi^0\gamma$ in the energy range $\sqrt{s} = \mbox{1.05-2.00}$ GeV with the SND detector AKHMETSHIN 2017A PL B773 150 Study of the Process ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit \eta}}$ in the c.m. Energy Range $1394 - 2005$ MeV with the CMD-3 Detector AULCHENKO 2015A JETP 121 27 Study of the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ Process in the Energy Range $1.05 - 2.00$ GeV ACHASOV 2010D PR D98 112001 Measurement of the $e^+e^- \to \pi^0\gamma$ cross section in the energy range 1.075-2 GeV at SND AUBERT 2007AU PR D76 092005 The ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ 2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ${{\mathit \pi}^{0}}$ , 2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ${{\mathit \eta}}$ , ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ and ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}}$ Cross Sections Measured with Initial-State Radiation Also PR D77 119902E (errat.) Erratum: The ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ 2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ${{\mathit \pi}^{0}}$ , 2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ${{\mathit \eta}}$ , ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ and ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}}$ Cross Sections Measured with Initial-State Radiation [Phys. Rev. D 76, 092005 (2007)] AUBERT,B 2004N PR D70 072004 Study of the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ Process using Initial State Radiation with BABAR ACHASOV 2003D PR D68 052006 Study of the Process ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ in the Energy Region $\sqrt {s }$ below 0.98 GeV HENNER 2002 EPJ C26 3 Application of Wavelet Analysis to the Spectrum of ${{\mathit \omega}^{\,'}}$ States and Ratio $\mathit R_{{{\mathit e}^{+}} {{\mathit e}^{-}}}$ AKHMETSHIN 2000D PL B489 125 Study of the Process ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ with CMD-2 Detector ANISOVICH 2000H PL B485 341 Evidence for ${{\mathit \omega}^{\,'}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \sigma}}$ and ${{\mathit b}_{{1}}{(1235)}}{{\mathit \pi}}$ CLEGG 1994 ZPHY C62 455 Higher Vector Meson States Produced in Electron-Positron Annihilation ANTONELLI 1992 ZPHY C56 15 Measurement of the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ and ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Reactions in the Energy Interval 1350