Soft QCD results from ATLAS and CMS

TL;DR

This paper presents measurements of minimum bias events, underlying event characteristics, strange particle production, and particle correlations in proton-proton and lead ion collisions at the LHC, comparing results to models and other experiments.

Contribution

It provides new experimental data on soft QCD phenomena at the LHC, including detailed particle production and correlation analyses, enhancing understanding of non-perturbative QCD effects.

Findings

Measured properties of minimum bias events at three LHC energies.

Analyzed strange particle production and correlations.

Compared experimental results to phenomenological models.

Abstract

The ATLAS and CMS Collaborations have measured properties of minimum bias events and have determined characteristics of the underlying event in proton-proton collisions at three LHC centre-of-mass energies. Comparisons to common phenomenological models and partially to other experiments have been made. The production of the strange particles K0s, Lambda and Xi is discussed. Particle correlation studies, in particular Bose-Einstein as well as long- and short-range angular correlations in proton-proton and lead ion events are explained.