Collective behaviour in proton number fluctuations seen in $\sqrt{s_{NN}}=$ 2.4 GeV Au+Au collisions

TL;DR

This paper investigates proton number fluctuations in low-energy Au+Au collisions to explore density fluctuations and correlation phenomena, using combinant analysis to extract new insights into particle interaction mechanisms.

Contribution

It introduces the use of combinant analysis on multiplicity distributions to probe density fluctuations in heavy-ion collisions at low energies, revealing new information about particle interactions.

Findings

Proton number fluctuations indicate complex correlation phenomena.

Combinant analysis uncovers previously inaccessible information.

Results suggest new avenues for understanding nuclear matter at low energies.

Abstract

At energies of a few GeV per nucleon, nuclear collisions exhibit phenomena more complex than the individualistic nucleon interactions observed at much higher energies. From recent results on proton number fluctuations in Au + Au collisions at $\sqrt{s_{NN}}=2.4$~GeV obtained by the HADES experiment at GSI, we suggest that measuring the multiplicity distributions heavy-ion collisions can be used to probe density fluctuations associated with correlation phenomena. By using the combinant analysis, one can obtain new information contained in them and otherwise unavailable, which may broaden our knowledge of the particle interactions mechanism.