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Ξ−production by Σ−.π−and neutrons in the hyperon beam experiment WA89 at CERN

Authors
Journal
Nuclear Physics B - Proceedings Supplements
0920-5632
Publisher
Elsevier
Publication Date
Volume
55
Issue
1
Identifiers
DOI: 10.1016/s0920-5632(97)00143-6

Abstract

We report on the measurement of the cross sections of Ξ −-hyperons produced in high energy Σ − −, π − − and neutron—interactions in copper and carbon. Measuring the p t−, x ƒ− and A—dependence of the production cross sections for the different projectiles, we observed a strong leading particle effect for Ξ − produced by Σ −. This constitutes the first measurement, using three different projectiles and two different targets within the same experiment ensuring small systematic uncertanties.

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