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arXiv · hep-ph/9902232

Baryon and Antibaryon Production in Hadronic and Nuclear Interactions

A. Capella·E. G. Ferreiro·C. A. Salgado
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Abstract

We introduce a new formulation of the diquark breaking mechanism which describes with no free parameters the huge nuclear stopping observed in central nucleus-nucleus collisions. Supplemented, in the dual parton model, with strings originating from diquark--antidiquark pairs from the nucleon sea, it gives a substantial increase of hyperon and antihyperon yields from $pPb$ to central $PbPb$ collisions. Compared to data, this increase is slightly underestimated for $Λ$'s and $Ξ$'s but is five times too small for $Ω$'s. Introducing final state interactions, a reasonable description of all baryon and antibaryon yields is achieved.

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A. Capella, E. G. Ferreiro, C. A. Salgado. 1999-02-03. Baryon and Antibaryon Production in Hadronic and Nuclear Interactions. https://doi.org/10.1016/s0370-2693(99)00664-4

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