Production of $\Sigma (1385{)}^{\pm }$ and $\Xi (1530{)}^0$ in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV

Abstract

The transverse momentum distributions of the strange and double-strange hyperon resonances ($\Sigma (1385{)}^{\pm }$, $\Xi (1530{)}^0$) produced in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV were measured in the rapidity range $-0.5<y_{\mathrm{CMS}}<0$ for event classes corresponding to different charged-particle multiplicity densities, $⟨\mathrm{d}{N}_{\mathrm{ch}}/\mathrm{d}{\eta }_{\mathrm{lab}}⟩$. The mean transverse momentum values are presented as a function of $⟨\mathrm{d}{N}_{\mathrm{ch}}/\mathrm{d}{\eta }_{\mathrm{lab}}⟩$, 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 $⟨\mathrm{d}{N}_{\mathrm{ch}}/\mathrm{d}{\eta }_{\mathrm{lab}}⟩$. The equivalent ratios to pions exhibit an increase with $⟨\mathrm{d}{N}_{\mathrm{ch}}/\mathrm{d}{\eta }_{\mathrm{lab}}⟩$, depending on their strangeness content.

23 pages, 9 captioned figures, 6 tables, authors from page 18, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3353

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Cited by in corpus (18)

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• Measurement of $\Lambda$(1520) production in pp collisions at $\sqrt{s}$ = 7 TeV and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Quark number scaling of hadronic $p_T$ spectra and constituent quark degree of freedom in $p$-Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV
• New insights into hadron production mechanism from $p_T$ spectra in $pp$ collisions at $\sqrt{s}=7$ TeV
• Hadronic resonance production and interaction in p-Pb collisions at LHC energies in EPOS3
• $\Sigma (1385{)}^{\pm }$ resonance production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Resonance production in high energy collisions from small to big systems
• Constituent quark number scaling from strange hadron spectra in $pp$ collisions at $\sqrt{s}=$ 13 TeV
• Strange hadron production in a quark combination model in Au+Au collisions at RHIC energies
• ${\mathrm{K}}^{\ast }(892{)}^0$ and $\varphi (1020)$ production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 8.16 TeV
• Averaged transverse momentum correlations of hadrons in relativistic heavy-ion collisions
• Effect of hadronic interaction on the flow of $K^{\ast 0}$
• Resonance Production in Heavy-Ion Collisions
• Hadronic resonance production with ALICE at the LHC
• Hadronic resonance production with ALICE at the LHC
• Rescattering effects on resonances production in small systems with ALICE at the LHC