Speaker
Description
Angular correlations between particles can be utilised to study soft fragmentation and production processes as well as the role of multiple parton interactions. Moreover, a study of the multiplicity dependence can further differentiate between the connection of bulk particles and strangeness production in a more dense environment and the potential role of collective effects.
In this talk, we present results on the two-particle correlation studies in pp collisions at 13 TeV measured with ALICE where strange hadrons ($\mathrm{K_{S}^0}$,$\Lambda$ and $\Xi$) are used as trigger particles.
The comparison of the correlation functions of the $\Xi$ hyperon associated with different strange and non-strange mesons and baryons with different models such as PYTHIA8 or EPOS provides an insight into the strangeness production mechanism. The ratios of the per-trigger yields from $\mathrm{K_{S}^0}$-h and $\Lambda$-h to the yields extracted from the h-h correlation function are sensitive to the difference between quark and gluon jets hadronisation mechanism. The multiplicity and $p_{\mathrm{T}}^{\mathrm{trigg}}$ dependence of the per-trigger yields and balanced yields will be shown.
