Topological studies of light-flavor hadron production in pp, p–Pb, and Pb–Pb collisions with ALICE at the LHC

Recent results for high multiplicity pp and p-Pb collisions have revealed that they exhibit heavy-ion-like behaviors. To understand the origin(s) of these unexpected phenomena, event shape observables such as transverse spherocity $({S}_{0}^{{p}_{{\rm{T}}}=1})$ and the relative transverse activity classifier (R_T) can be exploited as a powerful tools to disentangle soft (non-perturbative) and hard (perturbative) particle production. The production of light-flavor hadrons is shown for various ${S}_{0}^{{p}_{{\rm{T}}}=1}$ classes in pp collisions at $\sqrt{s}=13\,{\rm{TeV}}$ measured with the ALICE detector at the LHC. The evolution of average transverse momentum $(\langle {p}_{{\rm{T}}}\rangle )$ with charged-particle multiplicity, and identified particle ratios as a function of p_T for different ${S}_{0}^{{p}_{{\rm{T}}}=1}$ are also presented. In addition, the system size dependence of charged-particle production in pp, p–Pb, and Pb–Pb collisions at $\sqrt{{s}_{NN}}=5.02\,{\rm{TeV}}$ is presented. The evolution of 〈p_T〉 in different topological regions as a function of R_T are presented. Finally, using the same approach, we present a search for jet quenching behavior in small collision systems.