Small systems at the LHC

TL;DR

This paper reviews recent results from LHC experiments on small systems, focusing on collective phenomena and strangeness enhancement in proton-proton collisions, highlighting ongoing research in high-multiplicity QCD interactions.

Contribution

It summarizes recent experimental findings on collective effects and strangeness production in small collision systems at the LHC, emphasizing their significance in high-energy physics.

Findings

Observation of collective phenomena in small systems

Evidence of strangeness enhancement in proton-proton collisions

Highlights of recent experimental results from ALICE, ATLAS, and CMS

Abstract

In these proceedings, I report on a selection of recent LHC results in small systems from ALICE, ATLAS and CMS experiments. Due to the fact that the investigation of QCD in small systems at high multiplicity is becoming an increasingly large subject, interesting the heavy-ion community and more in general the high-energy physics community, not all the related topics can be discussed in this paper. The focus will be given to some of the measurements addressing the physics of collective phenomena in small systems and to the recent results on strangeness enhancement in proton-proton collisions. The reader must be informed that a large number of interesting results did not find space in the discussion reported here.