Jet quenching as a probe of the initial stages in heavy-ion collisions

Abstract

Jet quenching provides a very flexible variety of observables which are sensitive to different energy- and time-scales of the strongly interacting matter created in heavy-ion collisions. Exploiting this versatility would make jet quenching an excellent chronometer of the yoctosecond structure of the evolution process. Here we show, for the first time, that a combination of jet quenching observables is sensitive to the initial stages of heavy-ion collisions, when the approach to local thermal equilibrium is expected to happen. Specifically, we find that in order to reproduce at the same time the inclusive particle production suppression, $R_{AA}$, and the high-$p_T$ azimuthal asymmetries, $v_2$, energy loss must be strongly suppressed for the first $\sim 0.6$ fm. This exploratory analysis shows the potential of jet observables, possibly more sophisticated than the ones studied here, to constrain the dynamics of the initial stages of the evolution.

arXiv comment10 pages, 7 figures. Version to be published in PLB. Minor changes in the text and a new appendix containing 4 additional figures added

References in corpus (57)

• Implications of CTEQ global analysis for collider observables
• Long-range angular correlations on the near and away side in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions
• QCD Equation of State and Hadron Resonance Gas
• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• Collective flow and two-pion correlations from a relativistic hydrodynamic model with early chemical freeze out
• Multiplicity and transverse-momentum dependence of two- and four-particle correlations in pPb and PbPb collisions
• Extracting jet transport coefficient from jet quenching at RHIC and LHC
• Calculating Quenching Weights
• Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• High $p_T$ Azimuthal Asymmetry in Non-central A+A at RHIC
• Event-by-event fluctuations in perturbative QCD + saturation + hydro model: pinning down QCD matter shear viscosity in ultrarelativistic heavy-ion collisions
• Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead-lead collisions at sqrt(s_NN) = 2.76 TeV with the ATLAS detector
• Scaling of transverse energies and multiplicities with atomic number and energy in ultrarelativistic nuclear collisions
• $\mathcal{N}=1$ supersymmetric indices and the four-dimensional A-model
• Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Central $d$$+$Au Collisions at $\sqrt{s_{{}_{NN}}}$=200 GeV
• Evidence for collective multi-particle correlations in pPb collisions
• Parton-to-Pion Fragmentation Reloaded
• Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Multi-particle azimuthal correlations in p-Pb and Pb-Pb collisions at the CERN Large Hadron Collider
• Lattice QCD and heavy ion collisions: a review of recent progress
• Jet Quenching
• Imprints of fluctuating proton shapes on flow in proton-lead collisions at the LHC
• Comparison of Jet Quenching Formalisms for a Quark-Gluon Plasma "Brick"
• Jet Quenching and Azimuthal Anisotropy of Large $p_T$ Spectra in Non-central High-energy Heavy-ion Collisions
• Azimuthal anisotropy of charged particles at high transverse momenta in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• Small Shear Viscosity of a Quark-Gluon Plasma Implies Strong Jet Quenching
• Angular Dependence of Jet Quenching Indicates Its Strong Enhancement Near the QCD Phase Transition
• Eliminating experimental bias in anisotropic-flow measurements of high-energy nuclear collisions
• Measurement of multi-particle azimuthal correlations in $pp$, $p$+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector
• Experimental overview on small collision systems at the LHC
• Event-by-event hydrodynamics $+$ jet energy loss: A solution to the $R_{AA}\otimes v_2$ puzzle
• Measurement of the cross section for inclusive isolated-photon production in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector
• Elliptic flow of charm and strange hadrons in high-multiplicity pPb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 8.16 TeV
• Confronting impact parameter dependent JIMWLK evolution with HERA data
• Predictions for 5.023 TeV Pb+Pb collisions at the LHC
• Energy versus centrality dependence of the jet quenching parameter $\hat{q}$ at RHIC and LHC: a new puzzle?
• Towards a global analysis of polarized parton distributions
• Probing the time structure of the quark-gluon plasma with top quarks
• DREENA-B framework: first predictions of $R_{AA}$ and $v_2$ within dynamical energy loss formalism in evolving QCD medium
• Constraint fitting of experimental data with a jet quenching model embedded in a hydrodynamical bulk medium
• Chemical freeze-out temperature in hydrodynamical description of Au+Au collisions at sqrt(s_NN) = 200 GeV
• A Simultaneous Description of Hadron and Jet Suppression in Heavy Ion Collisions
• Cumulants and nonlinear response of high $p_T$ harmonic flow at $\sqrt{s_{NN}}=5.02$ TeV
• Measurement of identified pi^0 and inclusive photon v_2 and implication to the direct photon production in sqrt(s_NN) = 200 GeV Au+Au collisions
• Examining a reduced jet-medium coupling in Pb+Pb collisions at the Large Hadron Collider
• Predictions for multiplicities and flow harmonics in 5.44 TeV Xe+Xe collisions at the CERN Large Hadron Collider
• Fourier Harmonics of High-pT Particles Probing the Fluctuating Intitial Condition Geometries in Heavy-Ion Collisions
• Azimuthal anisotropy of charged jet production in $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV Pb-Pb collisions
• Fluctuating Heavy Quark Energy Loss in Strongly-Coupled Quark-Gluon Plasma
• A systematic comparison of jet quenching in different fluid-dynamical models
• A study of the correlations between jet quenching observables at RHIC
• Energy loss in a fluctuating hydrodynamical background
• The $x$ and $Q^2$ dependence of $\hat{q}$, quasi-particles and the JET puzzle
• The Role of QCD Monopoles in Jet Quenching
• Extracting $\hat{q}$ in event-by-event hydrodynamics and the centrality/energy puzzle
• Latest predictions from the EbyE NLO EKRT model

Cited by in corpus (51)

• QCD thermalization: Ab initio approaches and interdisciplinary connections
• The ALICE experiment: a journey through QCD
• Jet quenching and medium response in high-energy heavy-ion collisions: a review
• Heavy quarks and jets as probes of the QGP
• Resolving the Scales of the Quark-Gluon Plasma with Energy Correlators
• Exploring QCD matter in extreme conditions with Machine Learning
• Simulating jets and heavy quarks in the Glasma using the colored particle-in-cell method
• Predicting parton energy loss in small collision systems
• Medium-induced gluon radiation with full resummation of multiple scatterings for realistic parton-medium interactions
• From hydro to jet quenching, coalescence and hadron cascade: a coupled approach to solving the $R_{AA}\otimes v_2$ puzzle
• Jet momentum broadening in the pre-equilibrium Glasma
• Inclusive jet and hadron suppression in a multistage approach
• Temperature dependence of $\eta /s$ of strongly interacting matter: effects of the equation of state and the parametric form of $(\eta /s)(T)$
• Anisotropic momentum broadening in the 2+1D Glasma: analytic weak field approximation and lattice simulations
• Dynamically groomed jet radius in heavy-ion collisions
• DAB-MOD sensitivity study of heavy flavor $R_{AA}$ and azimuthal anisotropies based on beam energy, initial conditions, hadronization, and suppression mechanisms
• Time reclustering for jet quenching studies
• Jet Broadening in Flowing Matter -- Resummation
• Jet momentum broadening during initial stages in heavy-ion collisions
• Jet quenching test of the QCD matter created at RHIC and the LHC needs opacity-resummed medium induced radiation
• Medium-induced cascade in expanding media
• System size scan of D meson $R_{\text{AA}}$ and $v_n$ using PbPb, XeXe, ArAr, and OO collisions at LHC
• Exploring the initial stages in heavy-ion collisions with high-pT RAA and v2 theory and data
• QLBT: A linear Boltzmann transport model for heavy quarks in a quark-gluon plasma of quasi-particles
• Jet quenching from heavy to light ion collisions
• Medium-induced radiation with vacuum propagation in the pre-hydrodynamics phase
• Multi-partonic medium induced cascades in expanding media
• Asymmetric transverse momentum broadening in an inhomogeneous medium
• The medium-modified $g\to c\bar{c}$ splitting function in the BDMPS-Z formalism
• Heavy flavor quenching and flow: the roles of initial condition, pre-equilibrium evolution and in-medium interaction
• Early evolution constrained by high-$p_T$ QGP tomography
• Jet quenching parameter in QCD kinetic theory
• Heavy flavor angular correlations as a direct probe of the glasma
• Hard probe path lengths and event-shape engineering of the quark-gluon plasma
• Leading order, next-to-leading order, and non-perturbative parton collision kernels: effects in static and evolving media
• Minijet quenching in non-equilibrium quark-gluon plasma
• An Experiment for Electron-Hadron Scattering at the LHC
• The impact of glasma on heavy flavor azimuthal correlations and spectra
• Medium effects for hadron-tagged jets in proton-proton collisions
• Transverse momentum broadening of medium-induced cascades in expanding media
• Medium-enhanced $c\bar{c}$ radiation
• Flavor and path-length dependence of jet quenching from inclusive jet and γ-jet suppression
• Bayesian Constraints on Pre-Equilibrium Jet Quenching and Predictions for Oxygen Collisions
• In-medium gluon radiation spectrum with all-order resummation of multiple scatterings in longitudinally evolving media
• Utilizing high-$p_{\perp }$ theory and data to constrain the initial stages of quark-gluon plasma
• Momentum broadening of heavy quarks and jets in the Glasma from classical colored particle simulations
• Jet quenching in mini-quark-gluon plasma: Medium modification factor $I_{pA}$ for photon-tagged jets
• Road map to extracting medium properties: an overview
• Deciphering the role of multiple scatterings and time delays in the in-medium emission process
• Smooth matching of $\hat{q}$ from hadronic to quark and gluon degrees of freedom
• Reconstructing jet anisotropies with cumulants