Long-range near-side correlation in $e^{+}{e}^{-}$ Collisions at 183-209 GeV with ALEPH Archived Data

Abstract

The first measurement of two-particle angular correlations for charged particles with LEP-II data is presented. The study is performed using archived hadronic $e^{+}{e}^{-}$ data collected by ALEPH at center-of-mass energies up to 209 GeV, above the $W^{+}{W}^{-}$ production threshold, which provide access to unprecedented charged-particle multiplicities and more complex color-string configurations if compared to previous measurements at LEP-I energies. An intriguing long-range near-side excess is observed in the correlation function measured with respect to the thrust axis in the highest multiplicity interval $N_{\mathrm{trk}}\ge 50$. Such a structure is not predicted by the Monte-Carlo simulation. The harmonic anisotropy coefficients $v_n$, which result from the Fourier expansion of the two-particle correlation functions, were also measured for the first time in $e^{+}{e}^{-}$ data, and compared to PYTHIA6 predictions and to the results obtained in proton-proton collisions. The results presented in the Letter provide novel experimental constraints on the formation of collective phenomena in point-like $e^{+}{e}^{-}$ collisions.

Accepted by PLB

References in corpus (34)

• High-Energy-Physics Event Generation with PYTHIA 6.1
• Methods for analyzing anisotropic flow in relativistic nuclear collisions
• The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions
• Tuning PYTHIA 8.1: the Monash 2013 Tune
• Flow Study in Relativistic Nuclear Collisions by Fourier Expansion of Azimuthal Particle Distributions
• Heavy Ion Collisions: The Big Picture, and the Big Questions
• 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
• Elliptic flow in Au+Au collisions at sqrt(s_NN) = 130 GeV
• 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
• Creating small circular, elliptical, and triangular droplets of quark-gluon plasma
• BHWIDE 1.00: O(alpha) YFS Exponentiated Monte Carlo for Bhabha Scattering at Wide Angles for LEP1/SLC and LEP2
• The ridge in proton-proton collisions at the LHC
• Small System Collectivity in Relativistic Hadron and Nuclear Collisions
• Centrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• Harmonic decomposition of two-particle angular correlations in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models
• Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models
• Collectivity without plasma in hadronic collisions
• Decomposition of Harmonic and Jet Contributions to Particle-pair Correlations at Ultra-relativistic Energies
• Long-range pseudorapidity dihadron correlations in $d$+Au collisions at $\sqrt{s_{\mathrm{NN}}}=200$ GeV
• Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV in PbPb collisions at sqrt(s[NN]) = 5.02 TeV
• Measurements of long-range near-side angular correlations in $\sqrt{s_{\text{NN}}}=5$TeV proton-lead collisions in the forward region
• The Monte Carlo Program KoralW version 1.51 and The Concurrent Monte Carlo KoralW&YFSWW3 with All Background Graphs and First Order Corrections to W-Pair Production
• Study of Fermion pair production in e+e- collisions at 130-183 GeV
• Jet Substructure Studies with CMS Open Data
• Measurements of two-particle correlations in $e^{+}{e}^{-}$ collisions at 91 GeV with ALEPH archived data
• Measurement of the W boson mass and width in e+e- collisions at LEP
• Are minimal conditions for collectivity met in e+e- collisions?
• Statistics of weighted Poisson events and its applications
• Small system studies: A theory overview
• Multi-particle production in proton-nucleus collisions in the Color Glass Condensate
• Strangeness enhancement and flow-like effects in $e^{+}{e}^{-}$ annihilation at high parton density

Cited by in corpus (7)

• Overview of high-density QCD studies with the CMS experiment at the LHC
• The Dynamics of Particle-Particle Correlations and the Ridge Effect in Proton-Proton Collisions
• Observation of enhanced long-range elliptic anisotropies inside high-multiplicity jets in pp collisions at $\sqrt{s}$ = 13 TeV
• Soft QCD Physics at the LHC: highlights and opportunities
• Universality of scaled particle spectra in ultrarelativistic heavy-ion collisions
• Rapidity and multiplicity dependence of charged-particle flow in $p$Pb collisions at $\sqrt{s_{NN}}=8.16$ TeV
• Exploring hidden sectors with two-particle angular correlations at future $e^{+}{e}^{-}$ colliders