Excited cluster decays raise predicted proton cumulant ratios in a hadron resonance gas at collision energies of 2 to 5 GeV per nucleon pair, with the largest effect on high-order ratios at low energies.
Impact of resonance regeneration and decay on the net-proton fluctuations in a hadron resonance gas
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We investigate net-proton fluctuations as important observables measured in heavy-ion collisions within the hadron resonance gas (HRG) model. Special emphasis is given to effects which are a priori not inherent in a thermally and chemically equilibrated HRG approach. In particular, we point out the importance of taking into account the successive regeneration and decay of resonances below the chemical freeze-out, which lead to a randomization of the isospin of nucleons and thus to additional fluctuations in the net-proton number. We find good agreement between our model results and the recent STAR measurements of the higher-order moments of the net-proton distribution.
fields
nucl-th 1years
2024 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Excited cluster states: A new source for proton number fluctuations in the high baryon density regime
Excited cluster decays raise predicted proton cumulant ratios in a hadron resonance gas at collision energies of 2 to 5 GeV per nucleon pair, with the largest effect on high-order ratios at low energies.