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${{\mathit f}_{{{2}}}{(2150)}}$ MASS

${{\mathit \eta}}{{\mathit \eta}}$ MODE

INSPIRE   PDGID:

M042M3

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 2157 \pm12}$ OUR AVERAGE $2151$ $\pm16$ BARBERIS 2000 E 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{{f}}}}{{\mathit \eta}}{{\mathit \eta}}{{\mathit p}_{{{s}}}}$ $2175$ $\pm20$ PROKOSHKIN 1995 D GAM4 300 ${{\mathit \pi}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit N}}$2 ${{\mathit \eta}}$, 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}$2 ${{\mathit \eta}}$ $2130$ $\pm35$ SINGOVSKI 1994 GAM4 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}$2 ${{\mathit \eta}}$ • • We do not use the following data for averages, fits, limits, etc. • • $2140$ $\pm30$ 1 ABELE 1999 B CBAR $1.94$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$ $2104$ $\pm20$ 2 ARMSTRONG 1993 C E760 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$ $\rightarrow$ 6 ${{\mathit \gamma}}$ 1  Spin not determined. 2  No $\mathit J{}^{PC}$ determination.

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