Flavor hierarchy of parton energy loss in quark-gluon plasma from a Bayesian analysis

Abstract

The quenching of light and heavy flavor hadrons in relativistic heavy-ion collisions probes the color and flavor dependences of parton energy loss through a color-deconfined quark-gluon plasma (QGP), and thus reveals the properties of QCD matter at extremely high density and temperature. By combining a next-to-leading order perturbative QCD calculation of parton production, a general ansatz of parton energy loss functions and parton fragmentation functions, we calculate the nuclear modification of various hadron species -- charged hadrons, $D$ mesons and $B$-decayed $J/\psi$ -- over a wide transverse momentum regime. Comparing our calculations to the experimental data using the Bayesian statistical analysis, we perform a first simultaneous extraction of the energy loss functions of gluons ($g$), light quarks ($q$), charm quarks ($c$) and bottom quarks ($b$) inside the QGP. We find that the average parton energy loss at high energies follows the expected hierarchy of $⟨\Delta E_g⟩>⟨\Delta E_q⟩\sim ⟨\Delta E_c⟩>⟨\Delta E_b⟩$, while the parton energy loss distribution can further test the QCD calculations of parton interaction with the dense nuclear matter. We also find that the reduction of experimental uncertainties can significantly improve the precision of the extracted parton energy loss functions inside the QGP.

arXiv comment7 pages, 5 figures

References in corpus (53)

• emcee: The MCMC Hammer
• Radiative energy loss and $p_{\perp }$-broadening of high energy partons in nuclei
• Radiative energy loss of high energy quarks and gluons in a finite volume quark-gluon plasma
• Fully quantum treatment of the Landau--Pomeranchuk--Migdal effect in QED and QCD
• Gluon Radiation off Hard Quarks in a Nuclear Environment: Opacity Expansion
• Multiple Parton Scattering in Nuclei: Parton Energy Loss
• Applying Bayesian parameter estimation to relativistic heavy-ion collisions: simultaneous characterization of the initial state and quark-gluon plasma medium
• Multiple Scattering, Parton Energy Loss and Modified Fragmentation Functions in Deeply Inelastic eA Scattering
• Extracting jet transport coefficient from jet quenching at RHIC and LHC
• Induced Gluon Radiation in a QCD Medium
• The theory and phenomenology of perturbative QCD based jet quenching
• Fragmentation Functions from Flavour-inclusive and Flavour-tagged e^+e^- Annihilations
• Jet Quenching in Thin Quark-Gluon Plasmas I: Formalism
• Studies of jet quenching using isolated-photon + jet correlations in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV
• Modification of jet shapes in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• Heavy Flavor at the Large Hadron Collider in a Strong Coupling Approach
• Phenomenological constraints on the transport properties of QCD matter with data-driven model averaging
• Next-to-leading order QCD corrections to high-p_T pion production in longitudinally polarized pp collisions
• Charmed-Meson Fragmentation Functions with Finite-Mass Corrections
• Systematic Comparison of Jet Energy-Loss Schemes in a realistic hydrodynamic medium
• Nuclear modification factor of D${}^0$ mesons in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Constraining the Eq. of State of Super-Hadronic Matter from Heavy-Ion Collisions
• Jet Quenching
• Hard collinear gluon radiation and multiple scattering in a medium
• Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV with the ATLAS detector
• Jet Structure in Heavy Ion Collisions
• Determining Fundamental Properties of Matter Created in Ultrarelativistic Heavy-Ion Collisions
• 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
• Collisional Energy Loss in a Finite Size QCD Matter
• Full jet in quark-gluon plasma with hydrodynamic medium response
• Determining the jet transport coefficient $\hat{q}$ from inclusive hadron suppression measurements using Bayesian parameter estimation
• Measurement of prompt and nonprompt charmonium suppression in PbPb collisions at 5.02 TeV
• Jet energy loss, photon production, and photon-hadron correlations at RHIC
• Multiple jets and $\gamma$-jet correlation in high-energy heavy-ion collisions
• Quantifying properties of hot and dense QCD matter through systematic model-to-data comparison
• Energy versus centrality dependence of the jet quenching parameter $\hat{q}$ at RHIC and LHC: a new puzzle?
• Probing Transverse Momentum Broadening via Dihadron and Hadron-jet Angular Correlations in Relativistic Heavy-ion Collisions
• Full jet evolution in quark-gluon plasma and nuclear modification of jet production and jet shape in Pb+Pb collisions at 2.76 ATeV at the LHC
• Quenching of Hadron Spectra in Heavy Ion Collisions at the LHC
• Investigating the collision energy dependence of $\eta$/s in RHIC beam energy scan using Bayesian statistics
• Charmed hadron chemistry in relativistic heavy-ion collisions
• Flavor hierarchy of jet quenching in relativistic heavy-ion collisions
• Nuclear modification of jet shape for inclusive jets and $\gamma$-jets at the LHC energies
• Bayesian inference of the fluctuating proton shape
• Elastic energy loss and longitudinal straggling of a hard jet
• A global extraction of the jet transport coefficient in cold nuclear matter
• Medium Response and Jet-Hadron Correlations in Relativistic Heavy-Ion Collisions
• Enhancement of baryon-to-meson ratios around jets as a signature of medium response
• Final State Gluon Emission in Deep-Inelastic Scattering at Next-to-Leading Twist
• Unraveling Gluon Jet Quenching through $J/\psi$ Production in Heavy-Ion Collisions
• Quenching jets increases their flavor

Cited by in corpus (5)

• Transverse momentum balance of dijets in Xe+Xe collisions at the LHC
• Applications of emulation and Bayesian methods in heavy-ion physics
• Flavor dependence of jet quenching in heavy-ion collisions from a Bayesian analysis
• Production of leptons from decay of heavy-flavor hadrons in high-energy nuclear collisions
• Constraining color-charge effects of partonic energy loss with jet axis-based inclusive jet substructure measurement