PHENIX results on identified hadron production in small and large collision systems

Identified charged hadron ([Formula: see text], [Formula: see text], p and [Formula: see text]) nuclear modification factors and ratios of [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] measured by the PHENIX experiment in p[Formula: see text]Al, 3 He[Formula: see text]Au, Cu+Au collisions at [Formula: see text] = 200[Formula: see text]GeV and in U+U collisions at [Formula: see text] = 193 GeV are presented. The interpretation of experimental results has been carried out by comparison to theoretical predictions involving recombination and fragmentation models, implemented in the string melting version of AMPT package and in PYTHIA/ANGANTYR package, respectively. It is shown that in low [Formula: see text] range ([Formula: see text] [Formula: see text]GeV/c) fragmentation processes seem to dominate over recombination processes in collisions, characterized by small numbers of participant nucleons ([Formula: see text]). The contribution of recombination processes increases with increase of [Formula: see text] values and becomes dominant in collisions with [Formula: see text] which correspond to central collisions of large systems (Cu+Au and U+U).