Key result
The inclusion of excited nuclear clusters increases all cumulant ratios, with corrections ranging from 1% to 100% at low collision energies.
Answers are grounded in this paper and cite their sources.
Calculations reveal contributions of excited nuclear clusters to proton fluctuations in high baryon density systems, suggesting important implications for precision data comparisons.
We calculate the contribution of the decay products of excited nuclear cluster states to the event-by-event fluctuations of protons in the energy range from sNN=2−5 GeV within the statistical model. We find that the inclusion of the excited nuclear clusters yields corrections to all cumulant ratios, ranging from 1% for ratio of second to first-order cumulant to 100% for the sixth to second order cumulant towards the lowest inspected energy. As expected the contribution of excited cluster states is most important at low energies sNN<3.5 GeV and becomes negligible at higher collision energies. Especially in light of the expected ultra-high precision data from CBM at FAIR, this new contribution is important to allow for a quantitative comparison with (potentially later available) lattice QCD or effective model results.
No takes yet. Share an insight, caveat, or question.
Tomášik et al. (2025) studied proton number fluctuations. decay products of excited nuclear cluster states was evaluated on cumulant ratios of proton number fluctuations (null, 95% CI null, p=null). The inclusion of excited nuclear clusters increases all cumulant ratios, with corrections ranging from 1% to 100% at low collision energies.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: