Xi^- Production by Sigma^-, pi^- and Neutrons in the Hyperon Beam Experiment at CERN

Details Xi^- Production by Sigma^-, pi^- and Neutrons in the Hyperon Beam Experiment at CERN Xi^- Production by Sigma^-, pi^- and Neutrons in the Hyperon Beam Experiment at CERN

1997-03-11

arxiv.org/abs/hep-ex/9703007v2

Nucl.Phys.Proc.Suppl. 55A (1997) 14-18

Physics

High Energy Physics

High Energy Physics - Experiment

Corrected Report numbers and author list ; 24 pages, 6 tables, 8 Postscript figures, includes rotating.sty

Scientific paper

Inclusive cross sections for Xi^- hyperon production in high-energy Sigma^-, pi^- and neutron induced interactions were measured by the experiment WA89 at CERN. Secondary Sigma^- and pi^- beams with average momenta of 345 GeV/c and a neutron beam of average momentum 65 GeV/c were produced by primary protons of 450 GeV/c from the CERN SPS. Both single and double differential cross sections are presented as a function of the transverse momentum and the Feynman variable x_F. A strong leading effect for Xi^- produced by Sigma^- is observed. The influence of the target mass on the Xi^- cross section is explored by comparing reactions on copper and carbon nuclei.

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