Ξ and production in central S (200 A GeV) on W collisions from RQMD
1995; Elsevier BV; Volume: 344; Issue: 1-4 Linguagem: Inglês
10.1016/0370-2693(94)01535-k
ISSN1873-2445
Autores Tópico(s)Quantum Chromodynamics and Particle Interactions
ResumoΞ and Ξ production in central S (200 A GeV) on W collisions is studied in the framework of the transport approach RQMD. Color ropes, i.e. chromoelectric flux tubes created by large SU3 charges, provide the only relevant source of Ξ s. In contrast, the Ξ baryons get additional contributions from multiple baryon scattering which is reflected in different shapes of Ξ and Ξ rapidity distributions. The calculations compare well with experimental data of the WA85 Collaboration. An analysis of the RQMD results shows that the centrally produced Ξ and Ξ densities get near to local chemical equilibrium with their environment.
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