Abstract
In a hadronic gas with three conserved charges (electric charge, baryon
number, and strangeness) we employ the hadron resonance gas model to compute
both diagonal and off-diagonal susceptibilities. We model the effect of
chemical freeze-out in two ways: one in which all particle numbers are
conserved below the chemical freeze-out temperature and one which takes into
account resonance decays. We then briefly discuss possible implications these
results may have on two active areas of research, hydrodynamic fluctuations and
the search for the QCD critical point.
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