A1 Journal article (refereed)
System-size dependence of the hadronic rescattering effect at energies available at the CERN Large Hadron Collider (2024)
ALICE Collaboration. (2024). System-size dependence of the hadronic rescattering effect at energies available at the CERN Large Hadron Collider. Physical Review C, 109(1), Article 014911. https://doi.org/10.1103/PhysRevC.109.014911
JYU authors or editors
Publication details
All authors or editors: ALICE Collaboration
Journal or series: Physical Review C
ISSN: 2469-9985
eISSN: 2469-9993
Publication year: 2024
Publication date: 29/01/2024
Volume: 109
Issue number: 1
Article number: 014911
Publisher: American Physical Society (APS)
Publication country: United States
Publication language: English
DOI: https://doi.org/10.1103/PhysRevC.109.014911
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published: https://arxiv.org/abs/2308.16115
Abstract
The first measurements of K∗(892)0 resonance production as a function of charged-particle multiplicity in Xe−Xe collisions at √sNN = 5.44 TeV and pp collisions at √s= 5.02 TeV using the ALICE detector are presented. The resonance is reconstructed at midrapidity (|y|<0.5) using the hadronic decay channel K∗0→K±π∓. Measurements of transverse-momentum integrated yield, mean transverse-momentum, nuclear modification factor of K∗0, and yield ratios of resonance to stable hadron (K∗0/K) are compared across different collision systems (pp, p−Pb, Xe−Xe, and Pb−Pb) at similar collision energies to investigate how the production of K∗0 resonances depends on the size of the system formed in these collisions. The hadronic rescattering effect is found to be independent of the size of colliding systems and mainly driven by the produced charged-particle multiplicity, which is a proxy of the volume of produced matter at the chemical freeze-out. In addition, the production yields of K∗0 in Xe−Xe collisions are utilized to constrain the dependence of the kinetic freeze-out temperature on the system size using the hadron resonance gas in partial chemical equilibrium (HRG-PCE) model.
Keywords: particle physics; nuclear physics
Contributing organizations
Related projects
- The strong interaction at the frontier of knowledge: fundamental research and applications- STRONG -2020
- Lappi, Tuomas
- European Commission
- Center of Excellence in Quark Matter
- Räsänen, Sami
- Research Council of Finland
- Center of Excellence in Quark Matter
- Kim, Dong
- Research Council of Finland
Ministry reporting: Yes
Reporting Year: 2024
Preliminary JUFO rating: 2