Exact global baryon number conservation alone cannot reproduce STAR BES-II and HADES proton factorial cumulants; adding repulsive proton pairs at high energies and attractive triplets at low energies does, but with parameters fitted to the same data.
Mapping the QCD phase diagram with statistics friendly distributions
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abstract
We demonstrate that the multiplicity distribution of a system located in the vicinity of a first-order phase transition can be successfully measured in terms of its factorial cumulants with a surprisingly small number of events. This finding has direct implications for the experimental search of a QCD phase transition conjectured to be located in the high baryon density region of the QCD phase diagram.
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Baselines for Abelian Charge Fluctuations in Nuclear Collisions:Theory and Comparison with Experimental Data
Exact global baryon number conservation alone cannot reproduce STAR BES-II and HADES proton factorial cumulants; adding repulsive proton pairs at high energies and attractive triplets at low energies does, but with parameters fitted to the same data.