Higher-order anisotropic flows and dihadron correlations in Pb-Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV in a multiphase transport model

Abstract

Using a multiphase transport model that includes both initial partonic and final hadronic scatterings, we have studied higher-order anisotropic flows as well as dihadron correlations as functions of pseudorapidity and azimuthal angular differences between trigger and associated particles in Pb-Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV. With parameters in the model determined previously from fitting the measured multiplicity density of mid-pseudorapidity charged particles in central collisions and their elliptic flow in mid-central collisions, the calculated higher-order anisotropic flows from the two-particle cumulant method reproduce approximately those measured by the ALICE Collaboration, except at small centralities where they are slightly overestimated. Similar to experimental results, the two-dimensional dihadron correlations at most central collisions show a ridge structure at the near side and a broad structure at the away side. The short- and long-range dihadron azimuthal correlations, corresponding to small and large pseudorapidity differences, respectively, are studied for triggering particles with different transverse momenta and are found to be qualitatively consistent with experimental results from the CMS Collaboration. The relation between the short-range and long-range dihadron correlations with that induced by back-to-back jet pairs produced from initial hard collisions is also discussed.

7 pages, 7 figures, version to appear in Phys. Rev. C

References in corpus (11)

• Elliptic and triangular flow in event-by-event (3+1)D viscous hydrodynamics
• 200 A GeV Au+Au collisions serve a nearly perfect quark-gluon liquid
• Influence of the shear viscosity of the quark-gluon plasma on elliptic flow in ultrarelativistic heavy-ion collisions
• On the Origin of the "Ridge" phenomenon induced by Jets in Heavy Ion Collisions
• Jets, Mach cone, hot spots, ridges, harmonic flow, dihadron and $\gamma$-hadron correlation in high-energy heavy-ion collisions
• Momentum Broadening in an Anisotropic Plasma
• Triangular flow in heavy ion collisions in a multiphase transport model
• Longitudinal Broadening of Quenched Jets in Turbulent Color Fields
• The effect of triangular flow on di-hadron azimuthal correlations in relativistic heavy ion collisions
• Ridge Structure associated with the Near-Side Jet in the (Delta phi)-(Delta eta) Correlation
• Longitudinal broadening of near side jets due to parton cascade

Cited by in corpus (39)

• Measurement of event-plane correlations in sqrt(s_NN)=2.76 TeV lead-lead collisions with the ATLAS detector
• Elliptic and triangular flow in p+Pb and peripheral Pb+Pb collisions from parton scatterings
• GLISSANDO 2: GLauber Initial-State Simulation AND mOre..., ver. 2
• Event-by-event mean $p_{\mathrm{T}}$ fluctuations in pp and Pb-Pb collisions at the LHC
• Flow in AA and pA as an interplay of fluid-like and non-fluid like excitations
• Probing triaxial deformation of atomic nuclei in high-energy heavy ion collisions
• Characterizing flow fluctuations with moments
• Long-range azimuthal correlations in proton-proton and proton-nucleus collisions from the incoherent scattering of partons
• Forward-backward eccentricity and participant-plane angle fluctuations and their influences on longitudinal dynamics of collective flow
• KNO scaling of fluctuations in pp and pA, and eccentricities in heavy-ion collisions
• Event-plane correlators
• Elliptic flow splitting as a probe of the QCD phase structure at finite baryon chemical potential
• Charge correlations using the balance function in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Anomalous centrality evolution of two-particle angular correlations from Au-Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 62 and 200 GeV
• Nearly isentropic flow at sizeable $\eta /s$
• Opacity dependence of elliptic flow in kinetic theory
• Higher harmonics of azimuthal anisotropy in relativistic heavy ion collisions in HYDJET++ model
• Multiplicity and transverse momentum evolution of charge-dependent correlations in pp, p-Pb, and Pb-Pb collisions at the LHC
• Dijet asymmetry in Pb+Pb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 2.76 TeV within a multiphase transport model
• GLISSANDO 3: GLauber Initial-State Simulation AND mOre..., ver. 3
• Elucidating the event-by-event flow fluctuations in heavy-ion collisions via the event shape selection technique
• A method for studying the rapidity fluctuation and decorrelation of harmonic flow in heavy-ion collisions
• Influence of initial fluctuations on geometry measures in relativistic U-U and Cu-Au collisions
• Disentangling flow and nonflow correlations via Bayesian unfolding of the event-by-event distributions of harmonic coefficients in ultrarelativistic heavy-ion collisions
• Decomposition of jet fragmentation function in high-energy heavy-ion collisions
• Novel Phenomena in Particle Correlations in Relativistic Heavy-Ion Collisions
• Medium modifications of jet shapes in Pb+Pb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 2.76 TeV within a multiphase transport model
• Final state effects on charge asymmetry of pion elliptic flow in high-energy heavy-ion collisions
• Initial state fluctuations and final state correlations: Status and open questions
• Collision energy dependence of elliptic flow splitting between particles and their antiparticles from an extended multiphase transport model
• Effects of initial-state dynamics on collective flow within a coupled transport and viscous hydrodynamic approach
• Relics of Minijets amid Anisotropic Flows in High-energy Heavy-ion Collisions
• Robustness of principal component analysis on harmonic flow in heavy ion collisions
• A study of the anisotropy associated with dipole asymmetry in heavy ion collisions
• Azimuthal anisotropies of reconstructed jets in Pb+Pb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 2.76 TeV in a multiphase transport model
• Exploring the effect of hadron cascade-time on particle production in Xe+Xe collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.44 TeV through a multi-phase transport model
• Collisional broadening of angular correlations in a multiphase transport model
• Momentum-kick model application to high multiplicity pp collisions at $\sqrt{s}=13\mathrm{TeV}$ at the LHC
• A Method to Constrain Preferential Emission and Spectator Dynamics in Heavy-Ion Collisions