Production of Σ(1385)± and Ξ(1530)0 in p–Pb collisions at √sNN=5.02 TeV

D. Adamová, H.A. Andrews, D. Evans, K.L. Graham, P.G. Jones, A. Jusko, M. Krivda, R. Lietava, O. Villalobos Baillie, N. Zardoshti, ALICE Collaboration

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Abstract

The transverse momentum distributions of the strange and double-strange hyperon resonances (Σ(1385)±, Ξ(1530)0) produced in p–Pb collisions at √sNN=5.02 TeV were measured in the rapidity range −0.5<yCMS<0 for event classes corresponding to different charged-particle multiplicity densities, ⟨dNch/dηlab⟩. The mean transverse momentum values are presented as a function of ⟨dNch/dηlab⟩, as well as a function of the particle masses and compared with previous results on hyperon production. The integrated yield ratios of excited to ground-state hyperons are constant as a function of ⟨dNch/dηlab⟩. The equivalent ratios to pions exhibit an increase with ⟨dNch/dηlab⟩, depending on their strangeness content.
Original languageEnglish
Article number389
JournalEuropean Physical Journal C
Volume77
Issue number6
Early online date13 Jun 2017
DOIs
Publication statusPublished - Jun 2017

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