2012/03/13 by M. A. Janik, Janik, Małgorzata
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · doi:10.48550/arxiv.1203.2844
openalex publication_date 2012/03/13 · openalex created_date 2022/10/03 · openalex updated_date 2026/07/28
We report on studies of two-particle ΔηΔϕ angular correlations measured in proton-proton collisions at center of mass energies sqrts = 0.9 TeV, sqrts = 2.76 TeV and sqrts = 7 TeV registered by the ALICE experiment at LHC. We present the dependence of the correlation function on the pair transverse momentum, the multiplicity of the event and the charge combination of particles in the pair. ΔηΔϕcorrelations are expected to exhibit several structures which arise from different physics mechanisms. The results are also related to the correlations obtained by femtoscopic analysis. We show that the minijet hypothesis for the non-femtoscopic underlying correlation should be taken into account while performing the femtoscopy analysis.