PYTHIA and Thermal FIST predict the same proton-deuteron balance scaling but differ sharply in its transverse-momentum dependence, so deuteron-triggered balance functions can in principle tell coalescence from statistical hadronization.
Clocking hadronization in relativistic heavy ion collisions with balance functions
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abstract
A novel state of matter has been hypothesized to exist during the early stage of relativistic heavy ion collisions, with normal hadrons not appearing until several fm/c after the start of the reaction. To test this hypothesis, correlations between charges and their associated anticharges are evaluated with the use of balance functions. It is shown that late-stage hadronization is characterized by tightly correlated charge/anticharge pairs when measured as a function of relative rapidity.
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Confronting the production mechanisms of nuclei with deuteron and proton-triggered balance functions
PYTHIA and Thermal FIST predict the same proton-deuteron balance scaling but differ sharply in its transverse-momentum dependence, so deuteron-triggered balance functions can in principle tell coalescence from statistical hadronization.