Hadronic resonances serve as valuable probes for investigating the late-stage evolution of the system formed in ultra-relativistic heavy-ion collisions. Since the lifetime of resonances are comparable to the lifetime of the hadronic phase, momenta of the decay daughters are affected by the competing rescattering and regeneration processes, which can results in the suppression and enhancement of measured resonance yields, respectively. These effects are investigated by analyzing the yield ratio of resonances to the stable hadrons. Previous ALICE results on \(\textrm{K}^{*0}\) and \(\upphi \) measurements in Pb–Pb collisions at \(\sqrt{s_{\textrm{NN}}} = 5.02\) TeV have suggested the dominance of the rescattering effect in central Pb–Pb collisions. This contribution presents the performance study of \(\upphi \) resonance reconstruction from the latest Run 3 data collected by ALICE for Pb–Pb collisions at \(\sqrt{s_{\textrm{NN}}} = 5.36\) TeV.

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First Look of  \(\upphi (1020)\) Resonance Production in Pb-Pb Collisions at 5.36 TeV

  • Sarjeeta Gami

摘要

Hadronic resonances serve as valuable probes for investigating the late-stage evolution of the system formed in ultra-relativistic heavy-ion collisions. Since the lifetime of resonances are comparable to the lifetime of the hadronic phase, momenta of the decay daughters are affected by the competing rescattering and regeneration processes, which can results in the suppression and enhancement of measured resonance yields, respectively. These effects are investigated by analyzing the yield ratio of resonances to the stable hadrons. Previous ALICE results on \(\textrm{K}^{*0}\) and \(\upphi \) measurements in Pb–Pb collisions at \(\sqrt{s_{\textrm{NN}}} = 5.02\) TeV have suggested the dominance of the rescattering effect in central Pb–Pb collisions. This contribution presents the performance study of \(\upphi \) resonance reconstruction from the latest Run 3 data collected by ALICE for Pb–Pb collisions at \(\sqrt{s_{\textrm{NN}}} = 5.36\) TeV.