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The production yields of the $\Sigma(1385)^{\pm}$ and $\Xi(1530)^{0}$resonances are measured in pp collisions at $\sqrt{s}=13$ TeV with ALICE. Themeasurements are performed as a function of the charged particle multiplicity$\langle \mathrm{d}N_\mathrm{ch}/\mathrm{d}\eta \rangle$, which is related tothe energy density produced in the collision. The results include transversemomentum ($p_{\rm T}$) distributions, $p_{\rm T}$-integrated yields, meantransverse momenta of $\Sigma(1385)^{\pm}$ and $\Xi(1530)^{0}$, as well asratios of the $p_{\rm T}$-integrated resonance yields relative to yields ofother hadron species. The $\Sigma(1385)^{\pm}/\pi^{\pm}$ and$\Xi(1530)^{0}/\pi^{\pm}$ yield ratios are consistent with the trend of theenhancement of strangeness production from low to high multiplicity ppcollisions, which was previously observed for strange and multi-strangebaryons. The yield ratio between the measured resonances and the long-livedbaryons with the same strangeness content exhibits a hint of a mild increasingtrend at low multiplicity, despite too large uncertainties to exclude the flatbehaviour. The results are compared to predictions from models such as EPOS-LHCand PYTHIA 8 with Rope shoving. The latter provides the best description of themultiplicity dependence of the $\Sigma(1385)^{\pm}$ and $\Xi(1530)^{0}$production in pp collisions at $\sqrt{s}=13$ TeV.

Multiplicity-dependent production of $\Sigma(1385)^{\pm}$ and $\Xi(1530)^{0}$ in pp collisions at $\sqrt{s}=13$ TeV