2014/01/31 by L. K. Graczykowski, Łukasz Kamil Graczykowski, M. A. Janik +1
Physics and Astronomy · #Alice (programming language) #Charged particle #Event (particle physics) #High-Energy Particle Collisions Research #Ion #Large Hadron Collider #Monte Carlo method #Nuclear physics #Particle (ecology) #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Proton #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Range (aeronautics) #Statistics #hep-ex #nucl-ex
paper · pdf · doi:10.1016/j.nuclphysa.2014.03.004
published as Nucl.Phys. A926 (2014) 205-212 · 7 pages, 5 figures, submitted to the Special Issue of Nuclear Physics A: proceedings of IS2013 conference
openalex publication_date 2014/03/16 · arxiv created 2014/09/09 · arxiv updated 2014/09/10 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report on studies of untriggered two-particle angular correlations of identified particles (pions, kaons and protons) measured in proton-proton collisions at center-of-mass energy sqrts=7 TeV recorded by ALICE at the LHC. These type of studies are sensitive to a wide range of correlations which arise from different physics mechanisms, each of them having a unique structure in DeltaEta-DeltaPhi space. The correlations of particles with different quark content and flavor are sensitive to various conservation laws. The study of these correlations is the main goal of this analysis. The results confirm that these laws strongly influence the shape of the correlation functions for different particle types and must be taken into account while analysing the data. Moreover, we verify their implementation using two Monte Carlo event generators and we found that the analyzed models do not reproduce the measured correlations for protons.