The first measurements of K∗(892)0 resonance production as a function of charged-particle multiplicity in XeXe 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–partial chemical equilibrium model.

Acharya, S., Adamová, D., Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z., et al. (2024). System-size dependence of the hadronic rescattering effect at energies available at the CERN Large Hadron Collider. PHYSICAL REVIEW C, 109(1), 1-18 [10.1103/physrevc.109.014911].

System-size dependence of the hadronic rescattering effect at energies available at the CERN Large Hadron Collider

Agrawal, N.;Alici, A.;Arcelli, S.;Bellini, F.;Colocci, M.;Ercolessi, F.;Jacazio, N.;Malfattore, G.;Romanenko, G.;Rubini, N.;Scioli, G.;Strazzi, S.;
2024

Abstract

The first measurements of K∗(892)0 resonance production as a function of charged-particle multiplicity in XeXe 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–partial chemical equilibrium model.
2024
Acharya, S., Adamová, D., Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z., et al. (2024). System-size dependence of the hadronic rescattering effect at energies available at the CERN Large Hadron Collider. PHYSICAL REVIEW C, 109(1), 1-18 [10.1103/physrevc.109.014911].
Acharya, S.; Adamová, D.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; Ahuja, I.; Akindinov, A.; Al-Turany, M.; ...espandi
File in questo prodotto:
File Dimensione Formato  
PhysRevC.109.014911.pdf

accesso aperto

Tipo: Versione (PDF) editoriale / Version Of Record
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione (CCBY)
Dimensione 1.16 MB
Formato Adobe PDF
1.16 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/995402
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 3
social impact