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CERN 1962

CERN-Ecole Polytechnique-Saclay collaboration;
Example of Anticascade anti-Ξ⁺ Particle Production in anti-p p Interactions at 3.0 GeV/c.
Phys. Rev. Lett. 8 (1962) 257;

Motivation
An experiment is in progress at the CERN proton synchrotron to study the interactions of fast antiprotons with protons. A high-energy separated beam has been installed and optimized to provide, in the first instance, a high-purity beam of 3.0 GeV/c antiprotons. The interactions are being produced and observed in the Saclay 81-cm hydrogen bubble chamber.
In the methodical scanning of the first ten thousand photographs (with an average of seven antiprotons per photograph) an event has been found showing the production of an anticascade particle anti-Ξ⁺. The object of this Letter is to present the data and the analysis leading to this conclusion. (Extracted from the introductory part of the paper.).

Accelerator CERN-PS Detectors HBC-81CM

Related references
More (earlier) information appears in
S. van der Meer, preprint CERN-60-22 (1960);

Reactions

anti-p p anti-Ξ+ X

3.0 GeV (Plab)

cs

Particles studied

anti-Ξ+

ex, mass

Record comments
Confirmation of the existence of the anti-Ξ⁺.

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