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|Type:||Artigo de periódico|
|Title:||Multi-strange Particle Measurements In 7 Tev Proton-proton And 2.76 Tev Pb-pb Collisions With The Alice Experiment At The Lhc|
|Abstract:||The production of charged multi-strange particles is studied with the ALICE experiment at the CERN LHC. Measurements of the central rapidity yields of Ξ- and Ω- baryons, as well as their antiparticles, are presented as a function of transverse momentum (p t) for inelastic pp collisions at √s = 7 TeV and compared to existing measurements performed at the same and/or at lower energies. The results are also compared to predictions from two different tunes of the PYTHIA event generator. We find that data significantly exceed the production rates from those models. Finally, we present the status of the multi-strange particle production studies in Pb-Pb at √sNN = 2.76 TeV performed as a function of collision centrality. © CERN 2011. Published under licence by IOP Publishing Ltd.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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