  Detailed knowledge of the hadronic spectrum is still an open question, which
has phenomenological consequences on the study of heavy-ion collisions. A
previous lattice QCD study concluded that additional strange resonances are
missing in the currently tabulated lists provided by the Particle Data Group
(PDG). That study identified the list labeled PDG2016+ as the ideal spectrum to
be used as an input in thermal-model-based analyses. In this work, we determine
the effect of additional resonances on the freeze-out parameters of systems
created in heavy-ion collisions. These parameters are obtained from thermal
fits of particle yields and net-particle fluctuations. For a complete picture,
we compare several hadron lists including both experimentally discovered and
theoretically predicted states. We find that the inclusion of additional
resonances mildly influences the extracted parameters -- with a general trend
of progressively lowering the temperature -- but is not sufficient to close the
gap in temperature between light and strange hadrons previously observed in the
literature.
