Pseudorapidity distributions of charged particles as a function of mid- and forward rapidity multiplicities in pp collisions at √s = 5.02, 7 and 13 TeV

Summary, in English

The multiplicity dependence of the pseudorapidity density of
charged particles in proton–proton (pp) collisions at centre-of-mass
energies s=5.02, 7 and 13 TeV measured by ALICE is reported. The
analysis relies on track segments measured in the midrapidity range (|
η| < 1.5). Results are presented for inelastic events having at least
one charged particle produced in the pseudorapidity interval | η| <
1. The multiplicity dependence of the pseudorapidity density of charged
particles is measured with mid- and forward rapidity multiplicity
estimators, the latter being less affected by autocorrelations. A
detailed comparison with predictions from the PYTHIA 8 and EPOS LHC
event generators is also presented. The results can be used to constrain
models for particle production as a function of multiplicity in pp
collisions.

• Author: S Acharya; Jonatan Adolfsson; Peter Christiansen; Oliver Matonoha; Adrian Nassirpour; Alice Ohlson; Anders Oskarsson; Tuva Richert; Omar Vazquez Rueda; David Silvermyr; N Zurlo
• Department/s: Particle and nuclear physics; eSSENCE: The e-Science Collaboration
• Publishing year: 2021
• Language: English
• Publication/Series: European Physical Journal C. Particles and Fields
• Volume: 81
• Issue: 7
• Links: http://dx.doi.org/10.1140/epjc/s10052-021-09349-5
• Document type: Journal article
• Publisher: Springer
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 1434-6044