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${{\mathit f}_{{2}}{(1810)}}$ MASS

INSPIRE   PDGID:

M038M

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 1815 \pm12}$ OUR AVERAGE  Error includes scale factor of 1.4.  See the ideogram below. $1822$ ${}^{+29}_{-24}$ ${}^{+66}_{-57}$ 5.5k 1 ABLIKIM 2013 N BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}}{{\mathit \eta}}$ $1737$ $\pm9$ ${}^{+198}_{-65}$ 2 UEHARA 2010 A BELL 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \eta}}{{\mathit \eta}}$ $1800$ $\pm30$ 40 ALDE 1988 D GAM4 300 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit p}}$4 ${{\mathit \pi}^{0}}$ $1806$ $\pm10$ 1600 ALDE 1987 GAM4 100 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ 4 ${{\mathit \pi}^{0}}{{\mathit n}}$ $1870$ $\pm40$ 3 ALDE 1986 D GAM4 100 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \eta}}{{\mathit n}}$ $1857$ ${}^{+35}_{-24}$ 4 COSTA 1980 OMEG 10 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit n}}$ • • We do not use the following data for averages, fits, limits, etc. • • $1845.0$ $\pm2.2$ ${}^{+1.6}_{-7.2}$ 5 ALBRECHT 2020 RVUE 0.9 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$ , ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$ , ${{\mathit \pi}^{0}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $1858$ ${}^{+18}_{-71}$ 6 LONGACRE 1986 RVUE Compilation $1799$ $\pm15$ 7 CASON 1982 STRC 8 ${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Delta}^{++}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ 1  From partial wave analysis including all possible combinations of 0${}^{++}$, 2${}^{++}$, and 4${}^{++}$ resonances. 2  Breit-Wigner mass. Could also be the ${{\mathit f}_{{2}}{(1910)}}$. 3  Seen in only one solution. 4  Error increased by spread of two solutions. Included in LONGACRE 1986 global analysis. 5  T-matrix pole, 4 poles, 4 channels, including scattering data from HYAMS 1975 ( ${{\mathit \pi}}{{\mathit \pi}}$ ), LONGACRE 1986 ( ${{\mathit K}}{{\overline{\mathit K}}}$ ), BINON 1983 ( ${{\mathit \eta}}{{\mathit \eta}}$ ). 6  From a partial-wave analysis of data using a K-matrix formalism with 5 poles. Includes compilation of several other experiments. 7  From an amplitude analysis of the reaction ${{\mathit \pi}^{+}}$ ${{\mathit \pi}^{-}}$ $\rightarrow$ 2 ${{\mathit \pi}^{0}}$ . The resonance in the 2${{\mathit \pi}^{0}}$ final state is not confirmed by PROKOSHKIN 1997 .

${{\mathit f}_{{2}}{(1810)}}$ mass (MeV)

References:

ALBRECHT 2020 EPJ C80 453 Coupled channel analysis of ${\bar{p}p}\,\rightarrow \,\pi ^0\pi ^0\eta $, ${\pi ^0\eta \eta }$ and ${K^+K^-\pi ^0}$ at 900 MeV/c and of ${\pi \pi }$-scattering data ABLIKIM 2013N PR D87 092009 Partial Wave Analysis of ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}}{{\mathit \eta}}$ UEHARA 2010A PR D82 114031 Measurement of ${{\mathit \eta}}{{\mathit \eta}}$ Production in Two-Photon Collisions ALDE 1988D SJNP 47 810 Observation of the Tensor ${{\mathit X}{(1810)}}$ Meson in 300 GeV Central ${{\mathit \pi}^{-}}{{\mathit n}}$ Collisions ALDE 1987 PL B198 286 Neutral Mesons Decaying into 4${{\mathit \pi}^{0}}$ ALDE 1986D NP B269 485 Production of ${{\mathit G}{(1590)}}$ and other Mesons Decaying into ${{\mathit \eta}}$ Pairs by 100 ${\mathrm {GeV/}}\mathit c$ ${{\mathit \pi}^{-}}$ on Protons LONGACRE 1986 PL B177 223 A Measurement of ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ at 22 ${\mathrm {GeV/}}\mathit c$ and a Systematic Study of the $2+{}^{+}{}^{}$ Meson Spectrum CASON 1982 PRL 48 1316 Amplitude Analysis of the Reaction ${{\mathit \pi}^{+}}$ ${{\mathit \pi}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ from 1.0 to 2.3 GeV COSTA 1980 NP B175 402 An Amplitude Analysis of the ${{\mathit K}^{+}}{{\mathit K}^{-}}$ System Produced in the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit n}}$ at 10 ${\mathrm {GeV/}}\mathit c$