2010/07/31 by ALICE Collaboration, K. Aamodt, N. Abel +98 · 1 citation
Physics and Astronomy · #Charged particle #Geometry #High-Energy Particle Collisions Research #Ion #Multiplicity (mathematics) #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Proton #Pseudorapidity #Quantum Chromodynamics and Particle Interactions #Spectral line #hep-ex #nucl-ex
paper · pdf · doi:10.1016/j.physletb.2010.08.026
published as Phys. Lett. B 693 (2010) 53-68 · 20 pages, 8 figures, 2 tables, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3902
openalex publication_date 2010/08/21 · openalex created_date 2016/06/24 · arxiv created 2017/09/28 · arxiv updated 2017/10/02 · openalex updated_date 2026/08/06
The inclusive charged particle transverse momentum distribution is measured in proton–proton collisions at s=900 GeV at the LHC using the ALICE detector. The measurement is performed in the central pseudorapidity region (|η|<0.8) over the transverse momentum range 0.15<pT<10 GeV/c. The correlation between transverse momentum and particle multiplicity is also studied. Results are presented for inelastic (INEL) and non-single-diffractive (NSD) events. The average transverse momentum for |η|<0.8 is 〈pT〉INEL=0.483±0.001 (stat.)±0.007 (syst.)GeV/c and 〈pT〉NSD=0.489±0.001 (stat.)±0.007 (syst.)GeV/c, respectively. The data exhibit a slightly larger 〈pT〉 than measurements in wider pseudorapidity intervals. The results are compared to simulations with the Monte Carlo event generators PYTHIA and PHOJET.