Multiplicity-dependent production of Σ(1385)± and Ξ(1530)0 in pp collisions at √s = 13 TeV
The production yields of the Σ(1385)± and Ξ(1530)0 resonances are measured in pp collisions at $$ \sqrt{s} $$= 13 TeV with ALICE. The measurements are performed as a function of the charged-particle multiplicity ⟨dNch/dη⟩, which is related to the energy density produced in the collision. The results...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
29 May 2024
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| In: |
Journal of high energy physics
Year: 2024, Issue: 5, Pages: 1-34 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP05(2024)317 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP05(2024)317 Verlag, kostenfrei, Volltext: https://link.springer.com/article/10.1007/JHEP05(2024)317 
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| Author Notes: | The ALICE collaboration |
MARC
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| 245 | 1 | 0 | |a Multiplicity-dependent production of Σ(1385)± and Ξ(1530)0 in pp collisions at √s = 13 TeV |c The ALICE collaboration |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Multiplicity-dependent production of sigma (1385)± and xi (1530) 0 in pp collisions at square root s equal 13 TeV |
| 264 | 1 | |c 29 May 2024 | |
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| 500 | |a Im Titel sind ± und 0 hochgestellt | ||
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| 500 | |a ALICE Collaboration: S. Acharya, V. Anguelov, A. Berdnikova, L. Bergmann, A.G. Bórquez Carcamo, M.C. Danisch, V.J.G. Feuillard, I. Fokin, P. Glässel, A. Nath, Y. Pachmayer, K. Reygers, R. Schicker, J.J. Seo, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, C.A. van Veen, B. Windelband, A. Yüncü, F. Zanone, [und 1027 weitere] | ||
| 520 | |a The production yields of the Σ(1385)± and Ξ(1530)0 resonances are measured in pp collisions at $$ \sqrt{s} $$= 13 TeV with ALICE. The measurements are performed as a function of the charged-particle multiplicity ⟨dNch/dη⟩, which is related to the energy density produced in the collision. The results include transverse momentum (pT) distributions, pT-integrated yields, mean transverse momenta of Σ(1385)± and Ξ(1530)0, as well as ratios of the pT-integrated resonance yields relative to yields of other hadron species. The Σ(1385)±/π± and Ξ(1530)0/π± yield ratios are consistent with the trend of the enhancement of strangeness production from low to high multiplicity pp collisions, which was previously observed for strange and multi-strange baryons. The yield ratio between the measured resonances and the long-lived baryons with the same strangeness content exhibits a hint of a mild increasing trend at low multiplicity, despite too large uncertainties to exclude the flat behaviour. The results are compared with predictions from models such as EPOS-LHC and PYTHIA 8 with Rope shoving. The latter provides the best description of the multiplicity dependence of the Σ(1385)± and Ξ(1530)0 production in pp collisions at $$ \sqrt{s} $$= 13 TeV. | ||
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