Forward-backward multiplicity and momentum correlations in $pp$ collisions at LHC energies

Abstract

Charged-particle multiplicity and summed values of the transverse momentum ($p_{\mathrm{T}}$) have been utilized for estimating forward-backward (FB) correlation strength for EPOS3 simulated proton-proton ($pp$) events with and without hydrodynamical evolution of particles at center-of-mass energies $\sqrt{s}$ = 0.9, 2.76, and 7 TeV for different pseudorapidity window width ($\delta \eta$) and gap (${\eta }_{gap}$) between the FB windows. We have studied the variation of FB correlation strength with ${\eta }_{gap}$, $\delta \eta$, $\sqrt{s}$, $p_{\mathrm{T}}$ cuts and multiplicity classes. Results are compared with the corresponding ALICE and ATLAS data. EPOS3 model qualitatively reproduces the overall variation of correlation strength of the LHC data. However, quantitative agreement is better for $pp$ events, generated using EPOS3 with hydrodynamical evolution of particles, with ATLAS data.

arXiv comment11 pages, 15 figures

References in corpus (38)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• Long-range angular correlations on the near and away side in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Observation of long-range near-side angular correlations in proton-lead collisions at the LHC
• Observation of Associated Near-side and Away-side Long-range Correlations in sqrt(s_NN)=5.02 TeV Proton-lead Collisions with the ATLAS Detector
• Charged-particle multiplicities in pp interactions measured with the ATLAS detector at the LHC
• Evidence for collectivity in pp collisions at the LHC
• Parton-Based Gribov-Regge Theory
• Long-range angular correlations of $\pi$, K and p in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Observation of long-range elliptic anisotropies in $\sqrt{s}=$13 and 2.76 TeV $pp$ collisions with the ATLAS detector
• Hadronic photon-photon interactions at high energies
• Analysing radial flow features in p-Pb and p-p collisions at several TeV by studying identified particle production in EPOS3
• Measurement of long-range near-side two-particle angular correlations in pp collisions at sqrt(s) = 13 TeV
• Measurement of long-range angular correlation and quadrupole anisotropy of pions and (anti)protons in central $d$$+$Au collisions at $\sqrt{s_{{}_{NN}}}$=200 GeV
• Evidence for flow in pPb collisions at 5 TeV from v2 mass splitting
• Charged-particle multiplicities in proton-proton collisions at $\sqrt{s}$ = 0.9 to 8 TeV
• Energy Dependence of the Transverse Momentum Distributions of Charged Particles in pp Collisions Measured by ALICE
• Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Long Range Forward-Backward Correlations and the Color Glass Condensate
• Charged-particle distributions at low transverse momentum in $\sqrt{s}$=13 TeV pp interactions measured with the ATLAS detector at the LHC
• Correlations between multiplicities and average transverse momentum in the percolating colour strings approach
• Forward-Backward Multiplicity Correlations in sqrt(s_NN) = 200 GeV Gold-Gold Collisions
• Large Scale Rapidity Correlations in Heavy Ion Collisions
• Forward-backward correlations between multiplicities in windows separated in azimuth and rapidity
• Long range rapidity correlations as seen in the STAR experiment
• Forward-backward multiplicity correlations in pp collisions at $\sqrt{s}$=0.9, 2.76 and 7 TeV
• Forward-backward correlations and charged-particle azimuthal distributions in pp interactions using the ATLAS detector
• Measurement of forward-backward multiplicity correlations in lead-lead, proton-lead and proton-proton collisions with the ATLAS detector
• Forward-Backward Correlations and Event Shapes as probes of Minimum-Bias Event Properties
• Measurement of the inclusive energy spectrum in the very forward direction in proton-proton collisions at sqrt(s) = 13 TeV
• Model of pp and AA collisions for the description of long-range correlations
• Long range forward-backward rapiditiy correlations in proton-proton collisions at LHC
• On the origin of forward-backward multiplicity correlations in $pp$ collisions at ultrarelativistic energies
• Extraction of multiple parton interactions and color reconnection from forward-backward multiplicity correlations
• Forward-backward correlations between intensive observables
• Anomalous features of particle production in high-multiplicity events of pp collisions at the LHC energies
• Forward-backward multiplicity correlations in pp collisions at high energy in Monte Carlo model with string fusion
• Centrality dependent long-range angular correlations of intermediate-pT D-mesons and charged particles in pPb collisions at the LHC energy

Cited by in corpus (3)

• Forward-backward multiplicity and momentum correlations in pp and pPb collisions at the LHC energies
• Event-by-event multiplicity fluctuations and correlations in ring-like and jet like events in ${}^{197}$Au-AgBr collisions at 11.6A GeV/c
• Forward-backward correlations in proton-proton collisions at the LHC energy: A model based study