Recent measurements of hadronic resonances in small systems at ALICE

4 Nov 2019, 17:40
20m
Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

Poster Presentation Small systems Poster Session

Speaker

Jihye Song (University of Houston (US))

Description

Hadronic resonances are unique and useful probes of ion-ion collision systems. They can be used to study the evolution of the hadrochemistry with system size, including resonance suppression and strangeness enhancement. Resonances can also be used to explore the various mechanisms that influence the shapes of hadron $p_{\mathrm{T}}$ spectra and to search for the possible onset of collective effects in small systems. The ALICE Collaboration has measured a wide variety of mesonic and baryonic resonances in pp and p-Pb collision systems at different energies from low to high charged-particle multiplicities. New results will be reported as functions of the multiplicity, including measurements of the $\mathrm{f}_{0}(980)$ meson in pp collisions at $\sqrt{s}=5.02$~TeV; the $\mathrm{f}_{0}(980)$, $\Sigma(1385)^{\pm}$, $\Lambda(1520)$, $\Xi(1530)^{0}$, and $\Xi(1820)$ resonances in pp collisions at $\sqrt{s}=13$~TeV; and the $\mathrm{K}^{*}(892)$ and $\phi(1020)$ mesons in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ and 8.16 TeV. The results will be compared to measurements from lower energies and discussed in the context of theoretical models.

Primary author

Jihye Song (University of Houston (US))

Presentation Materials