Measurement of charged particle spectra in minimum-bias events from proton-proton collisions at $\sqrt{s}=$ 13 TeV

TL;DR

This paper presents detailed measurements of charged particle distributions in proton-proton collisions at 13 TeV, providing data across different event types to test and improve theoretical models of high-energy hadronic interactions.

Contribution

It offers new experimental data on pseudorapidity, transverse momentum, and multiplicity distributions in various event categories at 13 TeV, aiding model validation.

Findings

Distributions are measured for different event categories.

Data are compared with Monte Carlo predictions.

Results help refine high-energy interaction models.

Abstract

Pseudorapidity, transverse momentum, and multiplicity distributions are measured in the pseudorapidity range $|\eta| <$ 2.4 for charged particles with transverse momenta satisfying $p_\mathrm{T} >$ 0.5 GeV in proton-proton collisions at a center-of-mass energy of $\sqrt{s} =$ 13 TeV. Measurements are presented in three different event categories. The most inclusive of the categories corresponds to an inelastic pp data set, while the other two categories are exclusive subsets of the inelastic sample that are either enhanced or depleted in single diffractive dissociation events. The measurements are compared to predictions from Monte Carlo event generators used to describe high-energy hadronic interactions in collider and cosmic-ray physics.