Multistrange Hyperon Production on Nuclear Targets

Abstract

We consider the experimental data on yields of protons, strange ${\Lambda }^{\prime }$s, and multistrange baryons ($\Xi$, $\Omega$), and antibaryons production on nuclear targets, and the experimental ratios of multistrange to strange antibaryon production, at the energy region from SPS up to LHC, and compare them to the results of the Quark-Gluon String Model calculations. In the case of heavy nucleus collisions, the experimental dependence of the ${\overline{\Xi }}^{+}/\overline{\Lambda }$, and, in particular, of the ${\overline{\Omega }}^{+}/\overline{\Lambda }$ ratios, on the centrality of the collision, shows a manifest violation of quark combinatorial rules.

18 pages, 7 figures, 4 tables. Accepted for publication in Physical Review D

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• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Strange and Multi-strange Particle Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 62.4 GeV
• Enhancement of hyperon production at central rapidity in 158 A GeV/c Pb-Pb collisions
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Cited by in corpus (1)

• Hyperon Production in Bi+Bi Collisions at NICA and Angular Dependence of Hyperon Spin Polarization