Measurement of $D^0$ azimuthal anisotropy at mid-rapidity in Au+Au collisions at \sNN = 200\,GeV

Abstract

We report the first measurement of the elliptic anisotropy ($v_2$) of the charm meson $D^0$ at mid-rapidity ($|y|$\,$<$\,1) in Au+Au collisions at \sNN = 200\,GeV. The measurement was conducted by the STAR experiment at RHIC utilizing a new high-resolution silicon tracker. The measured $D^0$ $v_2$ in 0--80\% centrality Au+Au collisions can be described by a viscous hydrodynamic calculation for transverse momentum ($p_{\mathrm{T}}$) less than 4\,GeV/$c$. The $D^0$ $v_2$ as a function of transverse kinetic energy ($m_{\mathrm{T}}-m_0$, where $m_{\mathrm{T}}=\sqrt{p_{\mathrm{T}}^2+m_0^2}$) is consistent with that of light mesons in 10--40\% centrality Au+Au collisions. These results suggest that charm quarks have achieved local thermal equilibrium with the medium created in such collisions. Several theoretical models, with the temperature--dependent, dimensionless charm spatial diffusion coefficient ($2\pi T{D}_s$) in the range of $\sim$2--12, are able to simultaneously reproduce our $D^0$ $v_2$ result and our previously published results for the $D^0$ nuclear modification factor.

arXiv comment7 pages, 4 figures, submitted to PRL

References in corpus (44)

• Experimental and Theoretical Challenges in the Search for the Quark Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence from RHIC Collisions
• Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration
• Methods for analyzing anisotropic flow in relativistic nuclear collisions
• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• How Much do Heavy Quarks Thermalize in a Heavy Ion Collision?
• The STAR Time Projection Chamber: A Unique Tool for Studying High Multiplicity Events at RHIC
• Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions
• Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Event-by-event anisotropic flow in heavy-ion collisions from combined Yang-Mills and viscous fluid dynamics
• Elliptic flow at large transverse momenta from quark coalescence
• QCD Predictions for Charm and Bottom Production at RHIC
• Flow analysis with cumulants: direct calculations
• First Results from Pb+Pb collisions at the LHC
• New method for measuring azimuthal distributions in nucleus-nucleus collisions
• Heavy Quark Production in p+p and Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at sqrt(s_NN)=200 GeV
• Linearized Boltzmann transport model for jet propagation in the quark-gluon plasma: Heavy quark evolution
• Centrality dependence of charged hadron and strange hadron elliptic flow from sqrt(s_NN) = 200 GeV Au+Au collisions
• Suppression of high transverse momentum D mesons in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Observation of $D^0$ meson nuclear modifications in Au+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 200 GeV
• Effects of initial flow velocity fluctuation in event-by-event (3+1)D hydrodynamics
• Heavy-Quark Diffusion and Hadronization in Quark-Gluon Plasma
• ${\mathbf{D}}_{\mathbf{s}}$-Meson as Quantitative Probe of Diffusion and Hadronization in Nuclear Collisions
• A light-cone wavefunction approach to open heavy flavor dynamics in QCD matter
• D meson elliptic flow in non-central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76TeV
• Heavy Quark Momentum Diffusion Coefficient from Lattice QCD
• Heavy-flavour spectra in high energy nucleus-nucleus collisions
• Tomography of the Quark-Gluon-Plasma by Charm Quarks
• Open heavy flavor in Pb+Pb collisions at sqrt(s)=2.76 TeV within a transport model
• Energy loss, hadronization and hadronic interactions of heavy flavors in relativistic heavy-ion collisions
• Transverse momentum dependence of D-meson production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Azimuthal anisotropy of D meson production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Measurements of $D^0$ and $D^{\ast }$ Production in $p$ + $p$ Collisions at $\sqrt{s}$ = 200 GeV
• Azimuthal anisotropy and correlations at large transverse momenta in $p+p$ and Au+Au collisions at $\sqrt{s_{{}_{NN}}}$= 200 GeV
• Elliptic flow for phi mesons and (anti)deuterons in Au+Au collisions at sqrt(s_NN) = 200 GeV
• The TOFp/pVPD Time of Flight System for STAR
• Elliptic and triangular flow of heavy flavor in heavy-ion collisions
• Heavy flavours in heavy-ion collisions: quenching, flow and correlations
• Measurement of the Bottom contribution to non-photonic electron production in $p+p$ collisions at $\sqrt{s}$=200 GeV
• Centrality and transverse momentum dependence of elliptic flow of multi-strange hadrons and $\varphi$ meson in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Analytical and numerical Gubser solutions of the second-order hydrodynamics
• Single electron yields from semileptonic charm and bottom hadron decays in Au$+$Au collisions at $\sqrt{s_{NN}}=200$ GeV
• Transport coefficients of heavy quarks around $T_c$ at finite quark chemical potential
• Event plane resolution correction for azimuthal anisotropy in wide centrality bins
• Insight from elliptic flow of open charm mesons using quark coalescence model at RHIC and LHC energies

Cited by in corpus (84)

• The ALICE experiment: a journey through QCD
• Heavy quarks and jets as probes of the QGP
• Properties of the QCD Matter -- An Experimental Review of Selected Results from RHIC BES Program
• A data-driven analysis for the temperature and momentum dependence of the heavy quark diffusion coefficient in relativistic heavy-ion collisions
• Hadronization and Charm-Hadron Ratios in Heavy-Ion Collisions
• Open Heavy-Flavor Production in Heavy-Ion Collisions
• A linearized Boltzmann--Langevin model for heavy quark transport in hot and dense QCD matter
• D-meson azimuthal anisotropy in mid-central Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}=5.02$ TeV
• Centrality and transverse momentum dependence of $D^0$-meson production at mid-rapidity in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=200\mathrm{GeV}$
• Lattice QCD constraints on the heavy quark diffusion coefficient
• The STAR MAPS-based PiXeL detector
• Measurement of prompt D${}^0$ meson azimuthal anisotropy in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$5.02 TeV
• Elliptic flow of charm and strange hadrons in high-multiplicity pPb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 8.16 TeV
• First observation of the directed flow of $D^0$ and $\overline{D^0}$ in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200~GeV
• Prompt D${}^0$, D${}^{+}$, and D${}^{\ast +}$ production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Large directed flow of open charm mesons probes the three dimensional distribution of matter in heavy ion collisions
• A Study of the Properties of the QCD Phase Diagram in High-Energy Nuclear Collisions
• Transport coefficients from in medium quarkonium dynamics
• The Present and Future of QCD
• Global Constraints from RHIC and LHC on Transport Properties of QCD Fluids in CUJET/CIBJET Framework
• Transverse-momentum and event-shape dependence of D-meson flow harmonics in Pb-Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV
• An experimental review of open heavy flavor and quarkonium production at RHIC
• Accelerated and decelerated expansion in a causal dissipative cosmology
• Doubly charmed baryon production in heavy ion collisions
• A Fixed-Target Programme at the LHC: Physics Case and Projected Performances for Heavy-Ion, Hadron, Spin and Astroparticle Studies
• Observation of prompt J/$\psi$ meson elliptic flow in high-multiplicity pPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 8.16 TeV
• Bulk Properties of the System Formed in Au+Au Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 14.5 GeV
• Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies
• DAB-MOD sensitivity study of heavy flavor $R_{AA}$ and azimuthal anisotropies based on beam energy, initial conditions, hadronization, and suppression mechanisms
• Overview of high-density QCD studies with the CMS experiment at the LHC
• Measurement of the suppression and azimuthal anisotropy of muons from heavy-flavor decays in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV with the ATLAS detector
• Development of heavy-flavour flow-harmonics in high-energy nuclear collisions
• Event-shape engineering for the D-meson elliptic flow in mid-central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Probing the transport properties of Quark-Gluon Plasma via heavy-flavor Boltzmann and Langevin dynamics
• Elliptic flow of electrons from beauty-hadron decays in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Azimuthal anisotropy of heavy-flavour decay electrons in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Studies of charm quark diffusion inside jets using PbPb and pp collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• DREENA-A framework as a QGP tomography tool
• Production of open-charm mesons in relativistic heavy-ion collisions
• Directed flow of open charm in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV using a quark coalescence model
• Event-shape engineering and heavy-flavour observables in relativistic heavy-ion collisions
• Heavy Quark Momentum Broadening in a Non-Abelian Plasma away from Thermal Equilibrium
• Radial profile of bottom quarks in jets in high-energy nuclear collisions
• Event plane determination from Zero Degree Calorimeter at the Cooling-Storage-Ring External-target Experiment
• Heavy-Flavour Jets in High-Energy Nuclear Collisions
• Measurement of D${}^0$-meson + hadron two-dimensional angular correlations in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=$ 200 GeV
• Pion, kaon, and (anti-)proton production in U+U Collisions at $\sqrt{s_{NN}}$ = 193 GeV measured with the STAR detector
• Charmonium Triangular Flow in High Energy Nuclear Collisions
• Onset of Constituent Quark Number Scaling in Heavy-Ion Collisions at RHIC
• Charm and beauty isolation from heavy flavor decay electrons in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV at RHIC
• Highlights from STAR heavy ion program
• Non-extensive statistical distributions of charmed meson production in Pb-Pb and pp($\overline{\text{p}}$) collisions
• Probing the in-medium $P_T$-broadening by $\gamma$+HF angular de-correlations
• Longitudinal momentum fraction of heavy-flavor mesons in jets in high-energy nuclear collisions
• Probing charm quark dynamics via multiparticle correlations in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Measurement of Non-prompt ${\mathrm{D}}^0$-meson Elliptic Flow in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Probing QGP with flow: An experimental overview
• Hydrodynamic description of $D$ meson production in high-energy heavy-ion collisions
• Prerequisites for heavy quark coalescence in heavy-ion collisions
• Towards the understanding of heavy quarks hadronization: from leptonic to heavy-ion collisions
• Measurement of electrons from beauty-hadron decays in pp and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Machine learning approach to analyze heavy quark diffusion coefficient in relativistic heavy-ion collisions
• Measurements of azimuthal anisotropies at forward and backward rapidity with muons in high-multiplicity p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV
• A machine learning-based study of open-charm hadrons in proton-proton collisions at the Large Hadron Collider
• Nuclear modification factors, directed and elliptic flow of electrons from open heavy flavor decays in Au+Au collisions from STAR
• Measurements of directed and elliptic flow for $D^0$ and $\overline{D^0}$ mesons using the STAR detector at RHIC
• Collective Excitation in High-Energy Nuclear Collisions -- In Memory of Professor Lianshou Liu
• Elliptic Flow of Heavy-Flavor Decay Electrons in Au+Au Collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 27 and 54.4 GeV at RHIC
• Probing the mass effect of heavy quark jets in high-energy nuclear collisions
• Interactions between heavy quarks and tilted QGP fireballs in 200 AGeV Au+Au collisions
• Reexamining charm versus bottom quark energy loss inside a color-deconfined medium
• The elliptic flow difference between baryons and anti-baryons in heavy collision with SMASH Model
• Transport properties from Charm to Bottom: $p_T$ suppression, anisotropic flow $v_n$ and their correlations to the bulk dynamics
• Physics of Collectivity and EOS from the RHIC Beam Energy Scan Program
• Transport-model investigation of scaling of the number of constituent quarks and the hadronic-partonic transition in Au + Au collisions
• Signatures of thermalized charm quarks in all charged flow observables
• Production of leptons from decay of heavy-flavor hadrons in high-energy nuclear collisions
• Effect of non-uniform efficiency on higher-order cumulants in heavy-ion collisions
• Elliptic anisotropy of open-charm hadrons from parton scatterings in p--Pb collisions at energies available at the CERN Large Hadron Collider
• Open charm production and ${\Lambda }_c^{+}/D^0$ ratio in pp and Au+Au collisions at the RHIC
• Recent Heavy-Flavor Results from STAR
• Heavy quark polarization anisotropy as a novel probe of fireball geometry
• Partonic transport model application to heavy flavor
• Open and hidden heavy flavor measurements at RHIC