Dihadron Tomography of High-Energy Nuclear Collisions in NLO pQCD

Abstract

Back-to-back dihadron spectra in high-energy heavy-ion collisions are studied within the next-to-leading order (NLO) perturbative QCD parton model with jet quenching incorporated via modified jet fragmentation functions due to radiative parton energy loss in dense medium. The experimentally observed appearance of back-to-back dihadrons at high $p_T$ is found to originate mainly from jet pairs produced close and tangential to the surface of the dense matter. However, a substantial fraction of observed high $p_T$ dihadrons also comes from jets produced at the center of the medium after losing finite amount of energy. Consequently, the suppression factor of such high-$p_T$ hadron pairs is found to be more sensitive to the initial gluon density than the single hadron spectra that are dominated by surface emission. A simultaneous ${\chi }^2$-fit to both the single and dihadron spectra can be achieved within a narrow range of the energy loss parameters ${\epsilon }_0=1.6-2.1$ GeV/fm. Because of the flattening of the initial jet production spectra, high $p_T$ dihadrons at the LHC energy are found to be more robust as probes of the dense medium.

arXiv comment4 pages in revtex with 5 figures, final version in PRL The numerical tables of the NLO single and dihadron spectra used in this manuscript can be downloaded from ftp://www-nsdth.lbl.gov/pub/xnwang/dihadron/

References in corpus (17)

• Global QCD Analysis of Parton Structure of the Nucleon: CTEQ5 Parton Distributions
• Suppression of Hadrons with Large Transverse Momentum in Central Au+Au Collisions at $sqrt {s sub {sub {NN}}}_ = 130 GeV
• Disappearance of back-to-back high $p_T$ hadron correlations in central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Centrality dependence of high pT hadron suppression in Au+Au collisions at sqrt(sNN)=130 GeV
• Fragmentation Functions for Pions, Kaons, and Protons at Next-to-Leading Order
• High $p_T$ Azimuthal Asymmetry in Non-central A+A at RHIC
• The two cutoff phase space slicing method
• Jet Tomography of Hot and Cold Nuclear Matter
• Leading-particle suppression in high energy nucleus-nucleus collisions
• The Fragility of High-pT Hadron Spectra as a Hard Probe
• Direct observation of dijets in central Au+Au collisions at sqrt(s_NN) = 200 GeV
• A Dynamical Scaling Law for Jet Tomography
• High-$p_T$ Hadron Spectra, Azimuthal Anisotropy and Back-to-Back Correlations in High-energy Heavy-ion Collisions
• Why the observed jet quenching at RHIC is due to parton energy loss
• Gluon Shadowing and Hadron Production at RHIC
• Parton Energy Loss with Detailed Balance
• A Next-to-Leading-Order Study of Dihadron Production

Cited by in corpus (135)

• Extracting jet transport coefficient from jet quenching at RHIC and LHC
• Jet quenching in high-energy heavy-ion collisions
• Dihadron azimuthal correlations in Au+Au collisions at sqrt(s_NN)=200 GeV
• Thermal Dileptons at LHC
• Heavy-Quark Kinetics in the QGP at LHC
• Suppression pattern of neutral pions at high transverse momentum in Au+Au collisions at sqrt(s_NN) = 200 GeV and constraints on medium transport coefficients
• Heavy Ion Collisions at the LHC - Last Call for Predictions
• Linearized Boltzmann transport model for jet propagation in the quark-gluon plasma: Heavy quark evolution
• Spectra and radial flow at RHIC with Tsallis statistics in a Blast-Wave description
• Linear Boltzmann Transport for Jet Propagation in the Quark-Gluon Plasma: Elastic Processes and Medium Recoil
• Review of Jet Measurements in Heavy Ion Collisions
• Hard collinear gluon radiation and multiple scattering in a medium
• Jet quenching and medium response in high-energy heavy-ion collisions: a review
• Effects of jet-induced medium excitation in $\gamma$-hadron correlation in A+A collisions
• Heavy and light flavor jet quenching at RHIC and LHC energies
• Small Shear Viscosity of a Quark-Gluon Plasma Implies Strong Jet Quenching
• Determining the jet transport coefficient $\hat{q}$ from inclusive hadron suppression measurements using Bayesian parameter estimation
• Particle-yield modification in jet-like azimuthal di-hadron correlations in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Hadron production in p+p, p+Pb, and Pb+Pb collisions with the HIJING 2.0 model at energies available at the CERN Large Hadron Collider
• Quantitative Constraints on the Transport Properties of Hot Partonic Matter from Semi-Inclusive Single High Transverse Momentum Pion Suppression in Au+Au collisions at sqrt(s_NN) = 200 GeV
• Tomography of high-energy nuclear collisions with photon-hadron correlations
• Jet Quenching from QCD Evolution
• Measurement of jet quenching with semi-inclusive hadron-jet distributions in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Interplaying mechanisms behind single inclusive jet suppression in heavy-ion collisions
• Multiple Parton Scattering in Nuclei: Modified DGLAP Evolution for Fragmentation Functions
• Multiple jets and $\gamma$-jet correlation in high-energy heavy-ion collisions
• Parton shower evolution in a 3-d hydrodynamical medium
• Dragging Heavy Quarks in Quark Gluon Plasma at the Large Hadron Collider
• Bulk matter evolution and extraction of jet transport parameter in heavy-ion collisions at RHIC
• Transverse momentum and centrality dependence of dihadron correlations in Au+Au collisions at sqrt(s_NN)=200 GeV: Jet-quenching and the response of partonic matter
• Suppression of high $p_T$ hadrons in $Pb+Pb$ Collisions at LHC
• Photon-Hadron Jet Correlations in p+p and Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Mach cone induced by $\gamma$-triggered jets in high-energy heavy-ion collisions
• Probing Transverse Momentum Broadening via Dihadron and Hadron-jet Angular Correlations in Relativistic Heavy-ion Collisions
• Constraints on jet quenching in p-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathbf{NN}}}$ = 5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions
• Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from STAR
• Nuclear modification of leading hadrons and jets within a virtuality ordered parton shower
• Constraint fitting of experimental data with a jet quenching model embedded in a hydrodynamical bulk medium
• Probing medium-induced jet splitting and energy loss in heavy-ion collisions
• Constraining the Physics of Jet Quenching
• Medium-evolved fragmentation functions
• Probing quark gluon plasma properties by heavy flavours
• A pQCD-based description of heavy and light flavor jet quenching
• Measurement of inclusive charged-particle jet production in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV
• Jet quenching
• A comparison study of medium-modified QCD shower evolution scenarios
• The evolving distribution of hard partons traversing a hot strongly interacting plasma
• Search for the elusive jet-induced diffusion wake in $Z/\gamma$-jets with 2D jet tomography in high-energy heavy-ion collisions
• Information field based global Bayesian inference of the jet transport coefficient
• A Monte-Carlo model for elastic energy loss in a hydrodynamical background
• Jet modification in three dimensional fluid dynamics at next-to-leading twist
• Gradient Tomography of Jet Quenching in Heavy-Ion Collisions
• Modeling of heavy-flavor pair correlations in Au-Au collisions at 200 A GeV at the BNL Relativistic Heavy Ion Collider
• The Phenomenology of Elastic Energy Loss
• Dissecting the role of initial collision geometry for jet quenching observables in relativistic heavy ion collisions
• Dijet asymmetry in Pb+Pb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 2.76 TeV within a multiphase transport model
• Quasi-particle model for lattice QCD: quark-gluon plasma in heavy ion collisions
• Extracting jet transport coefficient via single hadron and dihadron productions in high-energy heavy-ion collisions
• Jet tomography in heavy ion collisions with deep learning
• Measurement of azimuthal correlations of D mesons and charged particles in pp collisions at $\sqrt{s}=7$ TeV and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Parton Transport via Transverse and Longitudinal Scattering in Dense Media
• Quantifying jet transport properties via large $p_T$ hadron production
• Jet-like correlations with neutral pion triggers in pp and central Pb-Pb collisions at 2.76 TeV
• Parton shower evolution in medium and nuclear modification of photon-tagged jets in Pb+Pb collisions at the LHC
• On the bulk viscosity of anisotropically expanding hot QCD plasma
• Transport properties of anisotropically expanding quark-gluon plasma within a quasi-particle model
• Systematic Uncertainties in Theoretical Predictions of Jet Quenching
• Event-by-event azimuthal anisotropy of jet quenching in relativistic heavy ion collisions
• Heavy-flavor production in heavy-ion collisions and implications for the properties of hot QCD matter
• Medium Response and Jet-Hadron Correlations in Relativistic Heavy-Ion Collisions
• Full Jet Reconstruction in Heavy Ion Collisions
• $\eta$ meson production of high-energy nuclear collisions at NLO
• Transverse momentum diffusion and jet energy loss in non-Abelian plasmas
• A study of the correlations between jet quenching observables at RHIC
• Model and parameter dependence of heavy quark energy loss in a hot and dense medium
• Medium-modified Jet Shapes and other Jet Observables from in-medium Parton Shower Evolution
• Selected Experimental Results from Heavy Ion Collisions at LHC
• Ridge, Bulk, and Medium Response: How to Kill Models and Learn Something in the Process
• Event-by-Event Jet Quenching
• Asymmetric transverse momentum broadening in an inhomogeneous medium
• Heavy flavor quenching and flow: the roles of initial condition, pre-equilibrium evolution and in-medium interaction
• $\gamma$-hadron spectra in p + Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• gamma-hadron correlations as a tool to trace the flow of energy lost from hard partons in heavy-ion collisions
• Jet transport and photon bremsstrahlung via longitudinal and transverse scattering
• Effect of medium recoil and $p_T$ broadening on single inclusive jet suppression in high-energy heavy-ion collisions
• Energy loss for heavy quarks in relation to light partons; is radiative energy loss for heavy quarks anomalous?
• Measurements of jet quenching using semi-inclusive hadron+jet distributions in pp and central Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Recent high-pt results from STAR
• Heavy-Flavour Jets in High-Energy Nuclear Collisions
• Transverse momentum balance of dijets in Xe+Xe collisions at the LHC
• Three and two-hadron correlations in \sqrt{s_{NN}}=200 GeV proton-proton and nucleus-nucleus collisions
• System size dependence of associated yields in hadron-triggered jets
• STAR results on medium properties and response of the medium to energetic partons
• Relating $\hat{q}$, $\eta /s$ and $\Delta E$ in an expanding Quark-Gluon Plasma
• Parton splitting scales of reclustered large-radius jets in high-energy nuclear collisions
• Nuclear suppression at low energy heavy ion collisions
• Hard dihadron correlations in heavy-ion collisions at RHIC and LHC
• Jet shape and redistribution of the lost energy from jets in Pb+Pb collisions at the LHC in a multiphase transport model
• A study on the anomaly of $p$ over $\pi$ ratios in $Au+Au$ collisions with jet quenching
• Scaling patterns of the suppression of ${\pi }^0$ yields in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV: links to the transport properties of the QGP
• Evaluating Results from the Relativistic Heavy Ion Collider with Perturbative QCD and Hydrodynamics
• Overall momentum balance and redistribution of the lost energy in asymmetric dijet events in 2.76~ATeV Pb-Pb collisions with a multi-phase transport model
• Characteristics of Parton Energy Loss Studied with High-p_T Particle Spectra from PHENIX
• Three-hadron angular correlations from pQCD at RHIC and LHC
• Longitudinal dependence of two-particle momentum correlations from NEXSPHERIO model
• Unraveling Gluon Jet Quenching through $J/\psi$ Production in Heavy-Ion Collisions
• Expectations for dihadron correlation measurements at the LHC
• Hadron Correlations in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV with ALICE
• Away-side asymmetry of jet correlation relative to reaction plane: a sensitive probe for jet in-medium modifications
• Measurements of Dihadron Correlations Relative to the Event Plane in Au+Au Collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=200$ GeV
• Punch-through jets in $A+A$ collisions at RHIC/LHC
• Exploring Anisotropic flow via the Boltzmann Transport Equation Employing the Tsallis Blast Wave Description at LHC energies
• Monte Carlo approach for hadron azimuthal correlations in high energy proton and nuclear collisions
• Gamma-Jet Tomography of Quark-Gluon Plasma in High-Energy Nuclear Collisions
• A NLO analysis on fragility of dihadron tomography in high energy $AA$ collisions
• Shock Treatment: Heavy Quark Energy Loss in a Novel AdS/CFT Geometry
• Effects of initial state fluctuations on jet energy loss
• Classification of quark and gluon jets in hot QCD medium with deep learning
• Theory of Jet Quenching in Ultra-Relativistic Nuclear Collisions
• Jet quenching in QCD matter: from RHIC to LHC
• Highlights from PHENIX II: Exploring the QCD medium
• The Nuclear Suppression Factor for P_T increasing towards the Kinematic Limit
• Mapping out the Jet correlation landscape: Jet quenching and Medium response
• Photon Radiation and Dilepton Production Induced by Rescattering in Strong Interacting Medium
• Photon bremsstrahlung from quark jet via transverse and longitudinal scatterings: single versus multiple scatterings
• From R_AA via correlations to jets - the long road to tomography
• Modified Fragmentation Function in Heavy Ion Collisions at RHIC via Direct photon-Jet Measurements
• Mapping out the jet correlation landscape: a perspective from PHENIX experiment
• Medium modifications of photon-tagged jet fragmentation function in high-energy heavy-ion collisions
• Jet-Medium Interactions with Identified Particles
• Quantifying Properties of the QCD Matter at RHIC
• Measurement of away-side broadening with self-subtraction of flow in Au+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=200$ GeV
• An improved linear Boltzmann transport model for hadron and jet suppression in ultrarelativistic heavy-ion collisions
• Jet cone size dependence of single inclusive jet suppression due to jet quenching in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• System-size dependence of $\gamma$-jet modifications in heavy-ion collisions