Long-range and short-range dihadron angular correlations in central PbPb collisions at a nucleon-nucleon center of mass energy of 2.76 TeV

Abstract

First measurements of dihadron correlations for charged particles are presented for central PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV over a broad range in relative pseudorapidity, Delta(eta), and the full range of relative azimuthal angle, Delta(phi). The data were collected with the CMS detector, at the LHC. A broadening of the away-side (Delta(phi) approximately pi) azimuthal correlation is observed at all Delta(eta), as compared to the measurements in pp collisions. Furthermore, long-range dihadron correlations in Delta(eta) are observed for particles with similar phi values. This phenomenon, also known as the "ridge", persists up to at least |Delta(eta)| = 4. For particles with transverse momenta (pt) of 2-4 GeV/c, the ridge is found to be most prominent when these particles are correlated with particles of pt = 2-6 GeV/c, and to be much reduced when paired with particles of pt = 10-12 GeV/c.

References in corpus (21)

• Observation of Long-Range Near-Side Angular Correlations in Proton-Proton Collisions at the LHC
• Elliptic flow of charged particles in Pb-Pb collisions at 2.76 TeV
• Elliptic and triangular flow in event-by-event (3+1)D viscous hydrodynamics
• Observation of a Centrality-Dependent Dijet Asymmetry in Lead-Lead Collisions at sqrt(S(NN))= 2.76 TeV with the ATLAS Detector at the LHC
• Observation and studies of jet quenching in PbPb collisions at nucleon-nucleon center-of-mass energy = 2.76 TeV
• Suppression of charged particle production at large transverse momentum in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Triangularity and Dipole Asymmetry in Heavy Ion Collisions
• Triangular flow in hydrodynamics and transport theory
• Dihadron azimuthal correlations in Au+Au collisions at sqrt(s_NN)=200 GeV
• Triangular flow in event-by-event ideal hydrodynamics in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=200A$ GeV
• Long Range Correlations and the Soft Ridge in Relativistic Nuclear Collisions
• On the Origin of the "Ridge" phenomenon induced by Jets in Heavy Ion Collisions
• Momentum Broadening in an Anisotropic Plasma
• The Fate of the Initial State Fluctuations in Heavy Ion Collisions. II The Fluctuations and Sounds
• Longitudinal Broadening of Quenched Jets in Turbulent Color Fields
• Directed flow at midrapidity in heavy-ion collisions
• The effect of triangular flow on di-hadron azimuthal correlations in relativistic heavy ion collisions
• System Size and Energy Dependence of Jet-Induced Hadron Pair Correlation Shapes in Cu+Cu and Au+Au Collisions at sqrt(s_NN) = 200 and 62.4 GeV
• Three-particle correlation from glasma flux tubes
• The Momentum Kick Model Description of the Near-Side Ridge and Jet Quenching
• Single and Double Photonuclear Excitations in Pb+Pb Collisions at sqrt(s_NN) = 2.76 TeV at the CERN Large Hadron Collider

Cited by in corpus (85)

• 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
• Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions
• Multiplicity and transverse-momentum dependence of two- and four-particle correlations in pPb and PbPb collisions
• Evidence for collectivity in pp collisions at the LHC
• Long-range angular correlations of $\pi$, K and p in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Evidence for collective multi-particle correlations in pPb collisions
• Centrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• Gluon saturation and initial conditions for relativistic heavy ion collisions
• Harmonic decomposition of two-particle angular correlations in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Collective dynamics of the high-energy proton-nucleus collisions
• Measurement of long-range near-side two-particle angular correlations in pp collisions at sqrt(s) = 13 TeV
• Evidence for transverse momentum and pseudorapidity dependent event plane fluctuations in PbPb and pPb collisions
• Relativistic Theory of Hydrodynamic Fluctuations with Applications to Heavy Ion Collisions
• The ALICE experiment: a journey through QCD
• Physics Opportunities of a Fixed-Target Experiment using the LHC Beams
• Jets, Bulk Matter, and their Interaction in Heavy Ion Collisions at Several TeV
• Particle-yield modification in jet-like azimuthal di-hadron correlations in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Studies of azimuthal dihadron correlations in ultra-central PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• Experimental overview on small collision systems at the LHC
• Long-range two-particle correlations of strange hadrons with charged particles in pPb and PbPb collisions at LHC energies
• Charge-Dependent Correlations in Relativistic Heavy Ion Collisions and the Chiral Magnetic Effect
• Elliptic flow of charm and strange hadrons in high-multiplicity pPb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 8.16 TeV
• Heavy-ion collisions at the Large Hadron Collider: a review of the results from Run 1
• Beam Energy Dependence of the Third Harmonic of Azimuthal Correlations in Au+Au Collisions at RHIC
• Observation of correlated azimuthal anisotropy Fourier harmonics in pp and pPb collisions at the LHC
• Forward-central two-particle correlations in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Charged-particle angular correlations in XeXe collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 5.44 TeV
• An overview of experimental results from ultra-relativistic heavy-ion collisions at the CERN LHC: bulk properties and dynamical evolution
• Examining a reduced jet-medium coupling in Pb+Pb collisions at the Large Hadron Collider
• Harmonic decomposition of three-particle azimuthal correlations at RHIC
• Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at $\sqrt{s}=7$ TeV
• Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• Observation of prompt J/$\psi$ meson elliptic flow in high-multiplicity pPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 8.16 TeV
• Multiplicity and transverse momentum evolution of charge-dependent correlations in pp, p-Pb, and Pb-Pb collisions at the LHC
• Multidimensional Study of Hadronization in Nuclei
• Hadron spectra, flow and correlations in PbPb collisions at the LHC: interplay between soft and hard physics
• Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies
• Measurement of quark- and gluon-like jet fractions using jet charge in PbPb and pp collisions at 5.02 TeV
• Angular dihadron correlations as interplay of elliptic and triangular flows
• A systematic study of the sensitivity of triangular flow to the initial state fluctuations in relativistic heavy-ion collisions
• Decomposition of fluctuating initial conditions and flow harmonics
• Multiparticle azimuthal cumulants in p+Pb collisions from a multiphase transport model
• Novel Phenomena in Particle Correlations in Relativistic Heavy-Ion Collisions
• Pseudorapidity and transverse momentum dependence of flow harmonics in pPb and PbPb collisions
• Femtoscopy with identified charged pions in proton-lead collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with ATLAS
• Novel observables for exploring QCD collective evolution and quantum entanglement within individual jets
• Multiparticle correlation studies in pPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 8.16 TeV
• Pseudorapidity dependence of long-range two-particle correlations in pPb collisions at sqrt(s[NN]) = 5.02 TeV
• Two-particle angular correlations in pp and p-Pb collisions at LHC energies from a multi-phase transport model
• Two-particle angular correlations in heavy ion collisions from a multiphase transport model
• Observation of enhanced long-range elliptic anisotropies inside high-multiplicity jets in pp collisions at $\sqrt{s}$ = 13 TeV
• Average transverse momentum of hadrons in proton-nucleus collisions in the wounded nucleon model
• Jet properties in PbPb and pp collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Relics of Minijets amid Anisotropic Flows in High-energy Heavy-ion Collisions
• Mean transverse momenta correlations in hadron-hadron collisions in MC toy model with repulsing strings
• Correlations of azimuthal anisotropy Fourier harmonics with subevent cumulants in pPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 8.16 TeV
• Evidence for similar collectivity of high transverse momentum particles in pPb and PbPb collisions
• Near-side azimuthal and pseudorapidity correlations using neutral strange baryons and mesons in d+Au, Cu+Cu and Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• A Study of the Di-Hadron Angular Correlation Function in Event by Event Ideal Hydrodynamics
• Understanding long-range near-side ridge correlations in p$-$p collisions using rope hadronization at LHC energies
• INFN What Next: Ultra-relativistic Heavy-Ion Collisions
• Phenomenological Implications of the $p_T$ Spectra of $\varphi$ and $\Omega$ produced at LHC and RHIC
• Differential Correlation Measurements with the Identity Method
• Observation of long-range collective flow in OO and NeNe collisions and implications for nuclear structure studies
• On the clustering properties of produced particles in high-energy $pp$ collisions
• Dual Parton Model for the Charged Multiplicity in pp Collisions at 13, 13.6 TeV and for future LHC energy of 27 TeV
• Investigating strangeness enhancement in jet and medium via $\varphi$(1020) production in p$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Jet Quenching and Correlations
• Momentum-kick model application to high multiplicity pp collisions at $\sqrt{s}=13\mathrm{TeV}$ at the LHC
• Feynman Amplitude Approach to study the Passage of a Jet in a Medium
• Systematic study of flow vector fluctuations in $\sqrt{{\text{s}}_{{}_{\mathbf{NN}}}}=5.02$ TeV Pb-Pb collisions
• Large-rapidity ridge correlations from Color Glass Condensate
• LHC: Past, Present, and Future
• Study of the PYTHIA $\Delta \eta \Delta \varphi$ correlation as a function of multiplicity and transverse sphericity in proton-proton collisions at 7 TeV
• Multiplicity dependence of charm baryon and charm meson production in pPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 8.16 TeV
• System size and event shape dependence of particle-identified balance functions in proton-proton collisions at $\sqrt{s}=13$ TeV using PYTHIA 8 and EPOS models
• Two-particle number and transverse momentum balance function with event topology in pp collisions at $\sqrt{s}=13$ TeV
• A Large-$N$ Expansion for Minimum Bias
• Finite $V_{2\Delta }$ puzzle in low-multiplicity pp collisions from ultra-long-range azimuthal correlations in the string-shoving model
• Event shape Engineering analysis of D meson in ultrarelativistic heavy ion collisions
• Analysis of the near-side ridge structure in pp collisions via Momentum-Kick Model
• Soft QCD results from ATLAS and CMS
• Impact of soft QCD effects over intrajet azimuthal anisotropies
• Understanding the medium-like effects in the jet-like yield in pp and p-Pb collisions using event generators