Multiplicity-dependent production of Σ(1385)± and Ξ(1530)0 in pp collisions at √s=13 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00599673" target="_blank" >RIV/68378271:_____/24:00599673 - isvavai.cz</a>
Alternative codes found
RIV/61389005:_____/24:00599673
Result on the web
<a href="https://doi.org/10.1007/JHEP05(2024)317" target="_blank" >https://doi.org/10.1007/JHEP05(2024)317</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP05(2024)317" target="_blank" >10.1007/JHEP05(2024)317</a>

Result language
angličtina
Original language name
Multiplicity-dependent production of Σ(1385)± and Ξ(1530)0 in pp collisions at √s=13 TeV
Original language description
The production yields of the Σ(1385)± and Ξ(1530)0 resonances are measured in pp collisions at √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 √s = 13 TeV.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
<a href="/en/project/GA23-07499S" target="_blank" >GA23-07499S: Study of quark-gluon plasma with hard probes and limits of its formation</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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