Resonance decay effect on conserved number fluctuations in a hadron resonance gas model

Abstract

We study the effect of charged secondaries coming from resonance decay on the net-baryon, net-charge and net-strangeness fluctuations in high energy heavy-ion collisions within the hadron resonance gas (HRG) model. We emphasize the importance of including weak decays along with other resonance decays in the HRG, while comparing with the experimental observables. The effect of kinematic cuts on resonances and primordial particles on the conserved number fluctuations are also studied. The HRG model calculations with the inclusion of resonance decays and kinematical cuts are compared with the recent experimental data from STAR and PHENIX experiments. We find a good agreement between our model calculations and the experimental measurements for both net-proton and net-charge distributions.

9 pages, 5 figures, Accepted for publication in Physical Review C

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• Freeze-out Conditions in Heavy Ion Collisions from QCD Thermodynamics
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Cited by in corpus (7)

• Effects of volume corrections and resonance decays on cumulants of net-charge distributions in a Monte Carlo hadron resonance gas model
• Nuclear matter at finite temperature and static properties of proto-neutron star
• Non-critical fluctuations of (net) charges and (net) protons from iEBE-VISHNU hybrid model
• Conserved charge fluctuations using the $D$-measure in heavy-ion collisions
• Experimental results on charge fluctuations in heavy-ion collisions
• Study on higher moments of net-charge multiplicity distributions using a multiphase transport model
• Freeze-out and thermalization in relativistic heavy ion collisions