Speaker
Description
The measurements in high-multiplicity proton-proton (pp)
collisions show several features that are similar to those observed in heavy-ion collisions. In
this
respect, strangeness
production may
provide a valuable investigative tool.
Baryon-to-meson ratios have been measured differentially in $p_T$ and show an evolution with
increasing charged particle multiplicity in small systems similar to the one observed with
centrality in heavy-ion collisions, where this behavior is interpreted to be strongly related to
the hydrodynamical evolution of the system. Furthermore, the production rate of strange and
multi-strange hadrons relative to pions exhibits a significant increase with multiplicity in pp
collisions, similarly to that observed in p-A collisions. This increase is observed to be more
pronounced for hadrons with a larger strangeness content.
In this study, multi-strange ($\Xi$ ,$\Omega$) hadron production measurements at mid-rapidity, in pp $\sqrt{s}$ = 13 TeV
collisions , will be shown as a function of charged-particle multiplicity.
| Field of contribution | Experiment |
|---|
