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

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, ⟨ d Nch /d ηlab⟩ . The mean transverse momentum values are presented as a function of ⟨ d Nch /d ηlab⟩ , 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 ⟨ d Nch /d ηlab⟩ . The equivalent ratios to pions exhibit an increase with ⟨ d Nch /d ηlab⟩ , depending on their strangeness content.