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

INSPIRE   PDGID:

M041W2

VALUE (MeV) DOCUMENT ID TECN  COMMENT • • We do not use the following data for averages, fits, limits, etc. • • $310$ $\pm25$ 1 ANISOVICH 2000 J SPEC $135$ ${}^{+150}_{-65}$ 2, 3 COUPLAND 1977 CNTR 0.7$-$2.4 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\overline{\mathit p}}}{{\mathit p}}$ $165$ ${}^{+18}_{-8}$ 3 ALSPECTOR 1973 CNTR ${{\overline{\mathit p}}}{{\mathit p}}$ $\mathit S$ channel $\sim$$190$ 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  From a fit to the total elastic cross section. 3  Isospins 0 and 1 not separated.

References:

ANISOVICH 2000J PL B491 47 I = 0 C = +1 Mesons from 1920 to 2410 MeV COUPLAND 1977 PL 71B 460 Antiproton Proton Total Elastic Cross Sections in the ${{\mathit T}}$ and ${{\mathit U}}$ Regions (0.69 to 2.43 ${\mathrm {GeV/}}\mathit c$) ALSPECTOR 1973 PRL 30 511 High Statistics Investigation of the Broad ${{\mathit T}}$ and ${{\mathit U}}$ Peaks in Antiproton Interactions ABRAMS 1970 PR D1 1917 Total Cross Sections of ${{\mathit K}^{\pm}}$ Mesons and Antiprotons on Nucleons up to 3.3 ${\mathrm {GeV/}}\mathit c$ Also PRL 19 259 New Structures in the ${{\mathit K}^{+}}{{\mathit p}}$ and ${{\mathit K}^{+}}$ deuteron Cross Sections Between 1.55 and 3.30 ${\mathrm {GeV/}}\mathit c$ Also PRL 16 1228 New Structure in the ${{\mathit K}^{-}}{{\mathit p}}$ and ${{\mathit K}^{-}}{{\mathit d}}$ Total Cross Sections between 1 and 2.45 ${\mathrm {GeV/}}\mathit c$ Also PRL 19 678 New Structures in the ${{\mathit K}^{-}}{{\mathit p}}$ and ${{\mathit K}^{-}}{{\mathit d}}$ Total Cross Sections between 2.4 and 3.3 ${\mathrm {GeV/}}\mathit c$

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