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AbstractAbstract
[en] We report on a measurement of the differential and total cross sections of inclusive production of Ξ* resonances in Σ--nucleus collisions at 345 GeV/c. The cross section for inclusive Ξ01530 production is about a factor of 5 below that of Ξ-1320 hyperons. The products of cross section and branching ratio for the observed channels Ξ01690→Ξ-π+, Ξ-1820→Ξ01530π- a nd Ξ-1950→Ξ01530π- are lower by yet another order of magnitude. The Ξ-1820 and Ξ-1950 resonances show significantly harder xF and pt distributions than Ξ- and Ξ01530 hyperons. A comparison of the xF-distribution to PYTHIA and QGSM predictions provides only a partial agreement. (orig.)
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Source
29 refs.
Record Type
Journal Article
Literature Type
Numerical Data
Journal
European Physical Journal. C; ISSN 1434-6044;
; v. 11(2); p. 271-278

Country of publication
BRANCHING RATIO, CARBON 12 TARGET, COPPER 63 TARGET, DIFFERENTIAL CROSS SECTIONS, EXPERIMENTAL DATA, GEV RANGE 100-1000, HADRONIC PARTICLE DECAY, HYPERON REACTIONS, INCLUSIVE INTERACTIONS, INTEGRAL CROSS SECTIONS, NUCLEON-HYPERON INTERACTIONS, RELATIVISTIC RANGE, TRANSVERSE MOMENTUM, XI-1530 BARYONS, XI-1690 BARYONS, XI-1820 BARYONS, XI-1950 BARYONS
BARYON REACTIONS, BARYON-BARYON INTERACTIONS, BARYONS, CROSS SECTIONS, DATA, DECAY, ELEMENTARY PARTICLES, ENERGY RANGE, FERMIONS, GEV RANGE, HADRON REACTIONS, HADRON-HADRON INTERACTIONS, HADRONS, HYPERONS, INFORMATION, INTERACTIONS, LINEAR MOMENTUM, NUCLEAR REACTIONS, NUMERICAL DATA, PARTICLE DECAY, PARTICLE INTERACTIONS, STRANGE PARTICLES, TARGETS, XI BARYONS
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