Measurement of the $\overline{p}p \to K_S K_S η$ cross section at beam momenta in the regions of 1.45 and 1.7 GeV/c

P. D. Barnes; B. Bunker; H. Dennert; R. A. Eisenstein; W. Eyrich; H. Fischer; G. Franklin; J. Franz; R. Geyer; P. Harris; J. Hauffe; D. Hertzog; T. Johansson; T. Jones; K. Kilian; W. Oelert; S. Pomp; B. Quinn; K. Röhrich; E. Rössle; K. Sachs; H. Schmitt; T. Sefzick; J. Seydoux; F. Stinzing; R. Tayloe; R. Todenhagen; E. Traneus; S. Wirth

doi:10.1016/s0370-2693(01)00958-3

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Measurement of the $\overline{p}p \to K_S K_S η$ cross section at beam momenta in the regions of 1.45 and 1.7 GeV/c

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Abstract

The PS185 experiment at LEAR/CERN has investigated strangeness production in antiproton-proton collisions with final states such as $\overlineΛ Λ$, $\overlineΣ^0 Λ+ c.c$, $\overline{Σ^+} Σ^+$, $\overline{Σ^-} Σ^-$ and $K_S K_S$. Results are presented from a study of about 32,000 {$K_S K_S X$} events obtained at several antiproton momenta in the regions of 1.45 and 1.7 GeV/c. The $\overline{p} p \to K_S K_S η$ cross sections extracted at these momenta constitute the first measurement of this reaction in flight and are broadly consistent with expectations of a phase-space extrapolation of branching ratios from annihilation at rest.

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P. D. Barnes, B. Bunker, H. Dennert, R. A. Eisenstein, W. Eyrich, H. Fischer, G. Franklin, J. Franz, R. Geyer, P. Harris, J. Hauffe, D. Hertzog, T. Johansson, T. Jones, K. Kilian, W. Oelert, S. Pomp, B. Quinn, K. Röhrich, E. Rössle, K. Sachs, H. Schmitt, T. Sefzick, J. Seydoux, F. Stinzing, R. Tayloe, R. Todenhagen, E. Traneus, S. Wirth. 2001-07-20. Measurement of the $\overline{p}p \to K_S K_S η$ cross section at beam momenta in the regions of 1.45 and 1.7 GeV/c. https://doi.org/10.1016/s0370-2693(01)00958-3

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