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${{\mathit \omega}{(782)}}$ MASS

INSPIRE   PDGID:

M001M

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 782.66 \pm0.13}$ OUR AVERAGE  Error includes scale factor of 2.0.  See the ideogram below. $777.9$ $\pm2.2$ ${}^{+4.3}_{-2.2}$ 900k ANDREEV 2020 H1 ${{\mathit e}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit e}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit p}}$ $783.20$ $\pm0.13$ $\pm0.16$ 18680 AKHMETSHIN 2005 CMD2 0.60-1.38 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \gamma}}$ $782.68$ $\pm0.09$ $\pm0.04$ 11200 1 AKHMETSHIN 2004 CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $782.79$ $\pm0.08$ $\pm0.09$ 1.2M 2 ACHASOV 2003 D RVUE $0.44 - 2.00$ ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $781.96$ $\pm0.17$ $\pm0.80$ 11k 3 AMSLER 1994 C CBAR $0.0$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \eta}}{{\mathit \pi}^{0}}$ $782.08$ $\pm0.36$ $\pm0.82$ 3463 4 AMSLER 1994 C CBAR $0.0$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \eta}}{{\mathit \pi}^{0}}$ $781.96$ $\pm0.13$ $\pm0.17$ 15k AMSLER 1993 B CBAR $0.0$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ $782.4$ $\pm0.2$ 270k WEIDENAUER 1993 ASTE ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $782.4$ $\pm0.5$ 7000 5 KEYNE 1976 CNTR ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit n}}$ • • We do not use the following data for averages, fits, limits, etc. • • $782.58$ $\pm0.03$ $\pm0.01$ 6 HOID 2020 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \gamma}}$ $781.68$ $\pm0.09$ $\pm0.03$ 7 COLANGELO 2019 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $782.63$ $\pm0.03$ $\pm0.01$ 8 HOFERICHTER 2019 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $781.91$ $\pm0.24$ 9 LEES 2012 G BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ $782.7$ $\pm0.1$ $\pm1.5$ 19500 10 WURZINGER 1995 SPEC 1.33 ${{\mathit p}}$ ${{\mathit d}}$ $\rightarrow$ ${}^{3}\mathrm {He}$ ${{\mathit \omega}}$ $781.78$ $\pm0.10$ 10 BARKOV 1987 CMD ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $782.2$ $\pm0.4$ 1488 11 KURDADZE 1983 B OLYA ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $783.3$ $\pm0.4$ 433 CORDIER 1980 DM1 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $782.5$ $\pm0.8$ 33260 ROOS 1980 RVUE 0.0$-$3.6 ${{\overline{\mathit p}}}{{\mathit p}}$ $782.6$ $\pm0.8$ 3000 BENKHEIRI 1979 OMEG 9$-$12 ${{\mathit \pi}^{\pm}}{{\mathit p}}$ $781.8$ $\pm0.6$ 1430 COOPER 1978 B HBC 0.7$-$0.8 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ 5 ${{\mathit \pi}}$ $782.7$ $\pm0.9$ 535 VANAPELDOORN 1978 HBC 7.2 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\overline{\mathit p}}}{{\mathit p}}{{\mathit \omega}}$ $783.5$ $\pm0.8$ 2100 GESSAROLI 1977 HBC 11 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit n}}$ $782.5$ $\pm0.8$ 418 AGUILAR-BENIT.. 1972 B HBC 3.9,4.6 ${{\mathit K}^{-}}{{\mathit p}}$ $783.4$ $\pm1.0$ 248 BIZZARRI 1971 HBC 0.0 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \omega}}$ $781.0$ $\pm0.6$ 510 BIZZARRI 1971 HBC 0.0 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit K}_{{1}}}{{\mathit K}_{{1}}}{{\mathit \omega}}$ $783.7$ $\pm1.0$ 3583 12 COYNE 1971 HBC 3.7 ${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $784.1$ $\pm1.2$ 750 ABRAMOVICH 1970 HBC 3.9 ${{\mathit \pi}^{-}}{{\mathit p}}$ $783.2$ $\pm1.6$ 13 BIGGS 1970 B CNTR $<$4.1 ${{\mathit \gamma}}$ ${}^{}\mathrm {C}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{}^{}\mathrm {C}$ $782.4$ $\pm0.5$ 2400 BIZZARRI 1969 HBC 0.0 ${{\overline{\mathit p}}}{{\mathit p}}$ 1  Update of AKHMETSHIN 2000C. 2  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. 3  From the ${{\mathit \eta}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ decay. 4  From the ${{\mathit \eta}}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$ decay. 5  Observed by threshold-crossing technique. Mass resolution = 4.8 MeV FWHM. 6  The values were extracted from a dispersively improved Breit-Wigner parameterization and do not include vacuum polarization. Inclusion of vacuum polarization gives $782.736$ $\pm0.024$ MeV. 7  The ${{\mathit \omega}}$ mass was extracted from a dispersively improved Breit-Wigner parameterization, the ${{\mathit \omega}}$ width fixed at $8.49$ $\pm0.08$ MeV. The value does not include vacuum polarization which would shift the mass to $781.81$ $\pm0.09$ $\pm0.03$ MeV. The mixing parameter is assumed real valued. 8  The values were extracted from a dispersively improved Breit-Wigner parameterization and do not include vacuum polarization. 9  From the ${{\mathit \rho}}−{{\mathit \omega}}$ interference in the ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ mass spectrum using the Breit-Wigner for the ${{\mathit \omega}}$ and leaving its mass and width as free parameters of the fit. 10  Systematic uncertainties underestimated. 11  Systematic uncertainties not estimated. 12  From best-resolution sample of COYNE 1971 . 13  From ${{\mathit \omega}}-{{\mathit \rho}}$ interference in the ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ mass spectrum assuming ${{\mathit \omega}}$ width 12.6 MeV.

${{\mathit \omega}{(782)}}$ mass (MeV)

References:

ANDREEV 2020 EPJ C80 1189 Measurement of exclusive $\pi^+ \pi ^-$ and $\rho^0$ meson photoproduction at HERA HOID 2020 EPJ C80 988 Hadronic vacuum polarization and vector-meson resonance parameters from $e^+e^-\rightarrow \pi ^0\gamma$ COLANGELO 2019 JHEP 1902 006 Two-pion contribution to hadronic vacuum polarization HOFERICHTER 2019 JHEP 1908 137 Three-pion contribution to hadronic vacuum polarization LEES 2012G PR D86 032013 Precise Measurement of the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$( ${{\mathit \gamma}}$) Cross Section with the Initial-State Radiation Method at BABAR AKHMETSHIN 2005 PL B605 26 Study of the Processes ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \gamma}}$ , ${{\mathit \pi}^{0}}$ ${{\mathit \gamma}}$ $\rightarrow$ 3 ${{\mathit \gamma}}$ in the c.m. Energy Range $600 - 1380$ MeV at CMD-2 AKHMETSHIN 2004 PL B578 285 Reanalysis of Hadronic Cross Section Measurements at CMD-2 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 WURZINGER 1995 PR C51 443 Near Threshold Production of ${{\mathit \omega}}$ Mesons in the ${{\mathit p}}$ ${{\mathit d}}$ $\rightarrow$ ${}^{3}\mathrm {He}$ ${{\mathit \omega}}$ Reaction AMSLER 1994C PL B327 425 Study of ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilation at Rest into ${{\mathit \omega}}{{\mathit \eta}}{{\mathit \pi}^{0}}$ AMSLER 1993B PL B311 362 Antiproton Proton Annihilation at Rest into ${{\mathit \omega}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ WEIDENAUER 1993 ZPHY C59 387 ${{\mathit N}}{{\overline{\mathit N}}}$ Annihilation at Rest into Five Pions BARKOV 1987 JETPL 46 164 Measurement of ${{\mathit \omega}{(783)}}$ Meson Parameter by Cryogenic Magnetic Detector KURDADZE 1983B JETPL 36 274 Study of the ${{\mathit \omega}}$ Meson Production at VEPP-2M CORDIER 1980 NP B172 13 Cross Section of the Reaction ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ for Center-of-Mass Energies from 750 to 1100 MeV ROOS 1980 LNC 27 321 A Compilation Study of the ${{\mathit \phi}}$ Mass BENKHEIRI 1979 NP B150 268 Backward ${{\mathit \omega}}$ and ${{\mathit \eta}}$ Production in ${{\mathit \pi}}{{\mathit p}}$ Interactions at 9 and 12 ${\mathrm {GeV/}}\mathit c$ COOPER 1978B NP B146 1 ${{\mathit \phi}}$ and ${{\mathit \omega}}$ Meson Production in ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilations at $0.70 - 0.76$ ${\mathrm {GeV/}}\mathit c$ and the OZI Rule VANAPELDOORN 1978 NP B133 245 Final States with a Neutral Meson and a ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ or ${{\overline{\mathit p}}}{{\mathit p}}$ Pair in ${{\overline{\mathit p}}}{{\mathit p}}$ Interactions at 7.2 ${\mathrm {GeV/}}\mathit c$ GESSAROLI 1977 NP B126 382 Analysis of the ${{\mathit \omega}}{{\mathit \pi}^{-}}$ System Produced in the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{0}}$ ${{\mathit p}}$ at 11.2 ${\mathrm {GeV/}}\mathit c$ KEYNE 1976 PR D14 28 Study of ${{\mathit \omega}{(783)}}$ Production near Threshold in the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \omega}{(783)}}{{\mathit n}}$ Also PR D8 2789 Study of Narrow Mesons near their Thresholds AGUILAR-BENITEZ 1972B PR D6 29 Study of Nonstrange Mesons Produced in ${{\mathit K}^{-}}{{\mathit p}}$ Interactions at 3.9 and 4.6 ${\mathrm {GeV/}}\mathit c$ BIZZARRI 1971 NP B27 140 ${{\mathit p}}{{\overline{\mathit p}}}$ Annihilations at Rest. The ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \omega}}$ Channel Mass, Width, and Branching Ratio of the ${{\mathit \omega}}$ Meson COYNE 1971 NP B32 333 General Remarks on Experiments Measuring Particle Widths and the Width of the ${{\mathit \omega}}$ ABRAMOVICH 1970 NP B20 209 Evidence for ${{\mathit \rho}}{{\mathit \omega}}$ Interference Effect in ${{\mathit \pi}^{-}}{{\mathit p}}$ Interactions at 3.9 ${\mathrm {GeV/}}\mathit c$ BIGGS 1970B PRL 24 1201 Measurement of the Magnitude and Phase of ${{\mathit \rho}}{{\mathit \omega}}$ Interference in ${{\mathit \pi}^{+}}{{\mathit \omega}}$ Photoproduction from Carbon BIZZARRI 1969 NP B14 169 Experimental Results on the ${{\mathit \omega}}{{\mathit \pi}}$ and ${{\mathit \pi}}{{\mathit \pi}}$ Systems as Observed in the ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilations at Rest; ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \omega}^{0}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$