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${{\mathit f}_{{{4}}}{(2300)}}$ MASS

$\mathit S$-CHANNEL ${{\overline{\mathit p}}}{{\mathit p}}$ or ${{\overline{\mathit N}}}{{\mathit N}}$

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M041M2

VALUE (MeV) DOCUMENT ID TECN  COMMENT • • We do not use the following data for averages, fits, limits, etc. • • $2283$ $\pm17$ 1 ANISOVICH 2000 J SPEC $\sim$$2380$ 2 CUTTS 1978 B CNTR 0.97$-$3 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\overline{\mathit N}}}{{\mathit N}}$ $2345$ $\pm15$ 3, 2 COUPLAND 1977 CNTR 0.7$-$2.4 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\overline{\mathit p}}}{{\mathit p}}$ $2359$ $\pm2$ 2, 4 ALSPECTOR 1973 CNTR ${{\overline{\mathit p}}}{{\mathit p}}$ $\mathit S$ channel $2375$ $\pm10$ ABRAMS 1970 CNTR $\mathit S$ channel ${{\overline{\mathit N}}}{{\mathit N}}$ 1  From the combined analysis of ANISOVICH 1999C and ANISOVICH 1999F on ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$, ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$, ${{\mathit \eta}}{{\mathit \eta}}$, ${{\mathit \eta}}{{\mathit \eta}^{\,'}}$, ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$. 2  Isospins 0 and 1 not separated. 3  From a fit to the total elastic cross section. 4  Referred to as ${{\mathit U}}$ or ${{\mathit U}}$ region by ALSPECTOR 1973.

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