2011/07/31 by Stefan Heckel, S. T. Heckel
Physics and Astronomy · #Collision #Dust and Plasma Wave Phenomena #Event (particle physics) #High-Energy Particle Collisions Research #Large Hadron Collider #Magnetic confinement fusion research #Monte Carlo method #Multiplicity (mathematics) #Scaling #hep-ex #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1088/0954-3899/38/12/124095
published as J. Phys. G: Nucl. Part. Phys. 38 (2011) 124095 · 4 pages, 3 figures, proceedings to Quark Matter 2011; only minor changes in the new version (e.g. description of error bars of fig.3 in more detail, ref.5 updated), figures not changed, this is the published version
openalex publication_date 2011/11/10 · arxiv created 2011/11/14 · openalex created_date 2016/06/24 · arxiv updated 2019/08/13 · openalex updated_date 2026/08/05
Non-statistical event-by-event fluctuations of the mean transverse momentum of charged particles in pp and Pb-Pb collisions are studied using the ALICE experiment at the LHC. Little collision energy dependence is observed in pp. The data indicate a common scaling behaviour with event multiplicity from pp to semi-central Pb-Pb collisions. In central Pb-Pb, the results deviate from this trend, exhibiting a significant reduction of the fluctuation strength. The results are compared with measurements in Au-Au collisions at lower energies and with Monte Carlo simulations.