Soft Contribution to the Hard Ridge in Relativistic Nuclear Collisions

Abstract

Nuclear collisions exhibit long-range rapidity correlations not present in proton-proton collisions. Because the correlation structure is wide in relative pseudorapidity and narrow in relative azimuthal angle, it is known as the ridge. Similar ridge structures are observed in correlations of particles associated with a jet trigger (the hard ridge) as well as correlations without a trigger (the soft ridge). Earlier we argued that the soft ridge arises when particles formed in an early Glasma stage later manifest transverse flow. We extend this study to address new soft ridge measurements. We then determine the contribution of flow to the hard ridge.

16 pages, 9 figures, includes comparison to data

References in corpus (20)

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• Long Range Correlations and the Soft Ridge in Relativistic Nuclear Collisions
• Measuring Shear Viscosity Using Transverse Momentum Correlations in Relativistic Nuclear Collisions
• Intra-jet correlations of high-$p_t$ hadrons from STAR
• On the Origin of the "Ridge" phenomenon induced by Jets in Heavy Ion Collisions
• Momentum Broadening in an Anisotropic Plasma
• Anomalous centrality variation of minijet angular correlations in Au-Au collisions at 62 and 200 GeV from STAR
• Longitudinal Broadening of Quenched Jets in Turbulent Color Fields
• Jet broadening in unstable non-Abelian plasmas
• Transverse Radial Flow Effects on Two- and Three-Particle Angular Correlations
• Three-particle correlation from glasma flux tubes
• Ridge Structure associated with the Near-Side Jet in the (Delta phi)-(Delta eta) Correlation
• Scale-dependence of transverse momentum correlations in Pb-Au collisions at 158A GeV/c
• Non-flow correlations and elliptic flow fluctuations in Au+Au collisions at sqrt(s_NN)=200GeV
• The RHIC azimuth quadrupole: "perfect liquid" or gluonic radiation?
• Momentum Kick Model Analysis of PHENIX Near-Side Ridge Data and Photon Jet
• Viscosity and the Soft Ridge at RHIC
• System size dependence of freeze-out properties at RHIC
• Search for a Ridge Structure Origin with Shower Broadening and Jet Quenching
• Energy and system dependence of high-$p_T$ triggered two-particle near-side correlations

Cited by in corpus (17)

• The ridge in proton-proton collisions at the LHC
• Acceptance dependence of fluctuation measures near the QCD critical point
• Small x physics and RHIC data
• Fluctuation Probes of Early-Time Correlations in Nuclear Collisions
• Longitudinal correlation of the triangular flow event plane in a hybrid approach with hadron and parton cascade initial conditions
• Temporal evolution of tubular initial conditions and their influence on two-particle correlations in relativistic nuclear collisions
• Novel Phenomena in Particle Correlations in Relativistic Heavy-Ion Collisions
• Hydrodynamics: Fluctuating Initial Conditions and Two-particle Correlations
• Flow Fluctuations from Early-Time Correlations in Nuclear Collisions
• Ridge Formation Induced by Jets in $pp$ Collisions at 7 TeV
• Boltzmann-Langevin Approach to Pre-equilibrium Correlations in Nuclear Collisions
• Di-Hadron Correlations with Identified Leading Hadrons in 200 GeV Au+Au and d+Au Collisions at STAR
• Longitudinal dependence of two-particle momentum correlations from NEXSPHERIO model
• Effects of Minijets on Hadronic Spectra and Azimuthal Harmonics in Au-Au Collisions at 200 GeV
• Glasma flux tubes vs minimum-bias jets in 2D angular correlations on $\eta$ and $\varphi$
• The Glasma and the Hard Ridge
• Fluctuation and flow probes of early-time correlations in relativistic heavy ion collisions