Strangeness Enhancement Scenarios: Fireball or Independent Strings?

Details Strangeness Enhancement Scenarios: Fireball or Independent Strings? Strangeness Enhancement Scenarios: Fireball or Independent Strings?

1996-05-03

arxiv.org/abs/hep-ph/9605216v1

Phys.Lett. B387 (1996) 400-404

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, Plain Tex, no figures

Scientific paper

10.1016/0370-2693(96)01047-7

Due to the long-standing discrepancy between NA35 and NA36 data on $\Lambda$ production, two drastically different scenarios of strangeness enhancement are still possible. Independent string models, such as the dual parton model, lead to results close to the NA36 data. On the contrary, the NA35 results can only be described by introducing full final state rescattering of the produced particles. The corresponding predictions for central $Pb$-$Pb$ collisions at CERN energies differ by a factor 3 to 4. Preliminary data on the net proton ($p$-$\bar{p}$) rapidity distribution in $Pb$-$Pb$ collisions favor the independent string scenario.

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