Pseudorapidity densities of charged particles with transverse momentum thresholds in pp collisions at s =5.02 and 13 TeV

Summary, in English

The pseudorapidity density of charged particles with minimum transverse momentum (pT) thresholds of 0.15, 0.5, 1, and 2 GeV/c is measured in pp collisions at the center of mass energies of s=5.02 and 13 TeV with the ALICE detector. The study is carried out for inelastic collisions with at least one primary charged particle having a pseudorapidity (η) within ±0.8 and pT larger than the corresponding threshold. In addition, measurements without pT-thresholds are performed for inelastic and nonsingle-diffractive events as well as for inelastic events with at least one charged particle having |η|2 GeV/c), highlighting the importance of such measurements for tuning event generators. The new measurements agree within uncertainties with results from the ATLAS and CMS experiments obtained at s=13 TeV. © 2023 CERN.

• Author: S. Acharya; S. Basu; P. Christiansen; N Zurlo
• Department/s: Particle and nuclear physics
• Publishing year: 2023
• Language: English
• Publication/Series: Physical Review D
• Volume: 108
• Issue: 7
• Links: http://dx.doi.org/10.1103/PhysRevD.108.072008
• Document type: Journal article
• Publisher: American Physical Society
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 2470-0010