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${{\mathit \pi}_{{2}}{(1880)}}$ MASS

INSPIRE   PDGID:

M185M

VALUE (MeV) EVTS DOCUMENT ID TECN CHG  COMMENT $\bf{ 1874 {}^{+26}_{-5}}$ OUR AVERAGE  Error includes scale factor of 1.6.  See the ideogram below. $1847$ ${}^{+20}_{-3}$ 46M 1 AGHASYAN 2018 B COMP 190 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit p}}$ $1929$ $\pm24$ $\pm18$ 4k EUGENIO 2008 B852 - 18 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \eta}}{{\mathit \pi}^{-}}{{\mathit p}}$ $1876$ $\pm11$ $\pm67$ 145k LU 2005 B852 - 18 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit p}}$ $2003$ $\pm88$ $\pm148$ 69k KUHN 2004 B852 - 18 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}{{\mathit p}}$ • • We do not use the following data for averages, fits, limits, etc. • • $1880$ $\pm20$ ANISOVICH 2001 B SPEC 0 $0.6 - 1.94$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \eta}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ 1  Statistical error negligible.

${{\mathit \pi}_{{2}}{(1880)}}$ MASS (MeV)

References:

AGHASYAN 2018B PR D98 092003 Light isovector resonances in $\pi^- p \to \pi^-\pi^-\pi^+ p$ at 190 GeV/${\it c}$ EUGENIO 2008 PL B660 466 Observation of the ${{\mathit \pi}{(1800)}}$ and ${{\mathit \pi}_{{2}}{(1880)}}$ Mesons in ${{\mathit \eta}}{{\mathit \eta}}{{\mathit \pi}^{-}}$ Decay LU 2005 PRL 94 032002 Exotic Meson Decay to ${{\mathit \omega}}{{\mathit \pi}^{0}}{{\mathit \pi}^{-}}$ KUHN 2004 PL B595 109 Exotic Meson Production in the ${{\mathit f}_{{1}}{(1285)}}{{\mathit \pi}^{-}}$ System Observed in the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}{{\mathit p}}$ at 18 GeV/$\mathit c$ ANISOVICH 2001B PL B500 222 Study of ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \eta}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ in Flight