Forward-backward correlations and charged-particle azimuthal distributions in pp interactions using the ATLAS detector

Abstract

Using inelastic proton-proton interactions at sqrt(s) = 900 GeV and 7 TeV, recorded by the ATLAS detector at the LHC, measurements have been made of the correlations between forward and backward charged-particle multiplicities and, for the first time, between forward and backward charged-particle summed transverse momentum. In addition, jet-like structure in the events is studied by means of azimuthal distributions of charged particles relative to the charged particle with highest transverse momentum in a selected kinematic region of the event. The results are compared with predictions from tunes of the PYTHIA and HERWIG++ Monte Carlo generators, which in most cases are found to provide a reasonable description of the data.

arXiv comment28 pages + author list (50 total), 7 figures, 5 tables, revised author list, matches published JHEP version

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• N-flation with Hierarchically Light Axions in String Compactifications
• Forward-backward multiplicity correlations in pp collisions at $\sqrt{s}$=0.9, 2.76 and 7 TeV
• Measurement of forward-backward multiplicity correlations in lead-lead, proton-lead and proton-proton collisions with the ATLAS detector
• Forward-backward multiplicity fluctuation and longitudinal harmonics in high-energy nuclear collisions
• Microscopic Origin of Volume Modulus Inflation
• A simple model for rapidity fluctuations in the initial state of ultra-relativistic heavy-ion collisions
• Partial correlation analysis method in ultra-relativistic heavy-ion collisions
• System evolution of forward-backward multiplicity correlations in a multi-phase transport model
• Forward-backward multiplicity and momentum correlations in $pp$ collisions at LHC energies
• CGC/saturation approach for high energy soft interactions: ${\mathbf{v}}_2$ in proton-proton collisions
• Multibin correlations in a superposition approach to relativistic heavy-ion collisions
• Strongly intensive fluctuations and correlations in ultrarelativistic nuclear collisions in the model with string fusion
• Forward-backward correlations with strange particles in PYTHIA
• Forward-backward multiplicity and momentum correlations in pp and pPb collisions at the LHC energies
• Long range rapidity correlations in soft interaction at high energies
• Forward-backward multiplicity correlations at the LHC from independent sources
• Asymmetry at LHC for an U(1)' anomalous extension of MSSM
• A Method to Constrain Preferential Emission and Spectator Dynamics in Heavy-Ion Collisions
• Forward-backward correlations in proton-proton collisions at the LHC energy: A model based study
• Long-range correlation studies at the SPS energies in MC model with string fusion