Measurement of the p̄p→KSKSη cross section at beam momenta in the regions of 1.45 and 1.7 GeV/c

Autor: Tim Jones, W. Oelert, E. Rössle, J. Seydoux, R. A. Eisenstein, E. Traneus, B. P. Quinn, H. Fischer, J. Franz, P. D. Barnes, F. Stinzing, P. Harris, S. Wirth, K. Sachs, H. Dennert, Stephan Pomp, K. Kilian, R. Geyer, G. B. Franklin, T. Johansson, Hans von der Schmitt, K. Röhrich, B. Bunker, R. Tayloe, R. Todenhagen, D. Hertzog, W. Eyrich, J. Hauffe, T. Sefzick
Rok vydání: 2001
Předmět:
Zdroj: Physics Letters B. 516:257-263
ISSN: 0370-2693
Popis: The PS185 experiment at LEAR/CERN has investigated strangeness production in antiproton-proton collisions with final states such as $\overline{\Lambda} \Lambda$, $\overline{\Sigma}^0 \Lambda + c.c$, $\overline{\Sigma^+} \Sigma^+$, $\overline{\Sigma^-} \Sigma^-$ 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 $\overline{p} p \to K_S K_S \eta$ 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.
Databáze: OpenAIRE