Speaker
Description
Recent measurements in high-multiplicity pp and p-A collisions have revealed that these small collision systems exhibit collective-like behaviour, formerly thought to be achievable only in heavy-ion collisions. To understand the origins of these unexpected phenomena, event shape observables can be exploited, as they serve as a powerful tool to disentangle soft and hard contributions to particle production.
Results on the production of light flavor hadrons ($\pi$, K p, $\rm{\phi}$ and $\Xi$) as a function of Transverse Spherocity ($S_{\rm{0}}$) and Relative Transverse Activity ($R_{\rm{T}}$) in high multiplicity pp collisions at $\sqrt{s}$ = 13~$\textrm{TeV}$ measured with the ALICE detector are presented. Hadron-to-pion ratios in different $S_{\rm{0}}$ and $R_{\rm{T}}$ classes are presented and compared with state-of-the-art QCD-inspired Monte Carlo event generators. The evolution of charged particle average transverse momentum with multiplicity, $S_{\rm{0}}$ and $R_{\rm{T}}$ is also discussed in the context of radial flow or flow-like effects.
