Measurement of Non-prompt ${\mathrm{D}}^0$-meson Elliptic Flow in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV

Abstract

The elliptic flow ($v_2$) of ${\mathrm{D}}^0$ mesons from beauty-hadron decays (non-prompt ${\mathrm{D}}^0$) was measured in midcentral (30-50%) Pb-Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV with the ALICE detector at the LHC. The ${\mathrm{D}}^0$ mesons were reconstructed at midrapidity ($|y|<0.8$) from their hadronic decay ${\mathrm{D}}^0\to {\mathrm{K}}^{-}{\pi }^{+}$, in the transverse momentum interval $2<p_{\mathrm{T}}<12$ GeV/$c$. The result indicates a positive $v_2$ for non-prompt ${\mathrm{D}}^0$ mesons with a significance of 2.7$\sigma$. The non-prompt ${\mathrm{D}}^0$-meson $v_2$ is lower than that of prompt non-strange D mesons with 3.2$\sigma$ significance in $2<p_{\mathrm{T}}<8$ GeV/$c$, and compatible with the $v_2$ of beauty-decay electrons. Theoretical calculations of beauty-quark transport in a hydrodynamically expanding medium describe the measurement within uncertainties.

arXiv comment23 pages, 4 captioned figures, 1 table, authors from page 18, published version, figures at http://alice-publications.web.cern.ch/node/9513

References in corpus (85)

• XGBoost: A Scalable Tree Boosting System
• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• An Introduction to PYTHIA 8.2
• 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
• Quark Gluon Plasma an Color Glass Condensate at RHIC? The perspective from the BRAHMS experiment
• The PHOBOS Perspective on Discoveries at RHIC
• Collective flow and viscosity in relativistic heavy-ion collisions
• Tuning PYTHIA 8.1: the Monash 2013 Tune
• Flow Study in Relativistic Nuclear Collisions by Fourier Expansion of Azimuthal Particle Distributions
• Performance of the ALICE Experiment at the CERN LHC
• The p_T Spectrum in Heavy-Flavour Hadroproduction
• How Much do Heavy Quarks Thermalize in a Heavy Ion Collision?
• The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events
• 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
• The p_T Spectrum in Heavy-Flavour Photoproduction
• Erratum: Transverse momentum and centrality dependence of high-\pt\ non-photonic electron suppression in Au+Au collisions at \sqrtsNN\ = 200 GeV
• Performance of the ALICE VZERO system
• Elliptic flow from two- and four-particle correlations in Au + Au collisions at sqrt{s_{NN}} = 130 GeV
• Alignment of the ALICE Inner Tracking System with cosmic-ray tracks
• High $p_T$ Azimuthal Asymmetry in Non-central A+A at RHIC
• Properties of hot and dense matter from relativistic heavy ion collisions
• Quark Coalescence for Charmed Mesons in Ultrarelativistic Heavy-Ion Collisions
• Nuclear Modification of Electron Spectra and Implications for Heavy Quark Energy Loss in Au+Au Collisions at sqrt(s_NN)=200 GeV
• 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 the charged-particle multiplicity density at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Heavy quark dynamics and hadronization in ultra-relativistic heavy-ion collisions: collisional versus radiative energy loss
• Observation of $D^0$ meson nuclear modifications in Au+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 200 GeV
• Heavy Flavor at the Large Hadron Collider in a Strong Coupling Approach
• D meson elliptic flow in non-central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76TeV
• Nuclear modification factor of D${}^0$ mesons in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Open heavy flavor in Pb+Pb collisions at sqrt(s)=2.76 TeV within a transport model
• Transverse momentum dependence of D-meson production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Measurement of $D^0$ azimuthal anisotropy at mid-rapidity in Au+Au collisions at \sNN = 200\,GeV
• Charm production in Pb+Pb collisions at the Large Hadron Collider energy
• A non-perturbative estimate of the heavy quark momentum diffusion coefficient
• Azimuthal anisotropy of D meson production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Heavy and light flavor jet quenching at RHIC and LHC energies
• Quarkonia and Heavy-Quark Relaxation Times in the Quark-Gluon Plasma
• Hadronization and Charm-Hadron Ratios in Heavy-Ion Collisions
• The Azimuthal Asymmetry at large p_t seem to be too large for a ``Jet Quenching''
• Eliminating experimental bias in anisotropic-flow measurements of high-energy nuclear collisions
• Suppression and azimuthal anisotropy of prompt and nonprompt J/psi production in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• 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
• Energy dependence and fluctuations of anisotropic flow in Pb-Pb collisions at $\sqrt{{\text{s}}_{\text{NN}}}=5.02$ and $2.76$ TeV
• Production of muons from heavy flavour decays at forward rapidity in pp and Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV
• Measurement of D${}^0$, D${}^{+}$, D${}^{\ast +}$ and D${}_{\mathrm{s}}^{+}$ production in Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}=5.02$ TeV
• Influence of hadronic bound states above $T_c$ on heavy-quark observables in Pb+Pb collisions at at the CERN Large Hadron Collider
• Measurement of prompt D${}^0$ meson azimuthal anisotropy in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$5.02 TeV
• Measurement of the B+/- meson nuclear modification factor in PbPb collisions at sqrt(s[NN]) = 5.02 TeV
• Does the Charm Flow at RHIC?
• QGP formation time and direct photons from heavy ion collisions
• Heavy flavours in heavy-ion collisions: quenching, flow and correlations
• Effects of non-uniform acceptance in anisotropic flow measurement
• Prompt D${}^0$, D${}^{+}$, and D${}^{\ast +}$ production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Elastic and radiative heavy quark interactions in ultra-relativistic heavy-ion collisions
• Azimuthally sensitive correlations in nucleus-nucleus collisions
• Transverse-momentum and event-shape dependence of D-meson flow harmonics in Pb-Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV
• Measurement of beauty and charm production in pp collisions at $\sqrt{s}=5.02$ TeV via non-prompt and prompt D mesons
• A modified-Boltzmann approach for modeling the hot QCD medium-induce splitting vertices in the deep LPM region
• Single electron yields from semileptonic charm and bottom hadron decays in Au$+$Au collisions at $\sqrt{s_{NN}}=200$ GeV
• Charm elliptic flow from quark coalescence dynamics
• Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies
• Heavy-flavor dynamics in nucleus-nucleus collisions: from RHIC to LHC
• Spectral and Transport Properties of Quark-Gluon Plasma in a Nonperturbative Approach
• Measurement of the production of high-$p_{\mathrm{T}}$ electrons from heavy-flavour hadron decays in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Measurement of azimuthal anisotropy of muons from charm and bottom hadrons in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with the ATLAS detector
• Measurement of prompt ${\mathrm{D}}^0$ and ${\overline{\mathrm{D}}}^0$ meson azimuthal asymmetry and search for strong electric fields in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Prompt and non-prompt $J/\psi$ elliptic flow in Pb+Pb collisions at $\sqrt{s_{{}_{\text{NN}}}}=5.02$ TeV with the ATLAS detector
• Elliptic flow of electrons from heavy-flavour hadron decays at mid-rapidity in Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}$ = 2.76 TeV
• Measurement of B${}_{\mathrm{s}}^0$ meson production in pp and PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Measurement of electrons from beauty-hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Event-shape engineering for the D-meson elliptic flow in mid-central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Elliptic flow of electrons from beauty-hadron decays in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Relativistic Langevin dynamics: charm versus beauty
• A fluid-dynamic approach to heavy-quark diffusion in the quark-gluon plasma
• Rapidity dependence of heavy-flavour production in heavy-ion collisions within a full 3+1 transport approach: quenching, elliptic and directed flow
• Heavy flavor quenching and flow: the roles of initial condition, pre-equilibrium evolution and in-medium interaction
• Measurement of beauty-strange meson production in Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV via non-prompt ${{\mathrm{D}}_{\mathrm{s}}}^{+}$ mesons
• Measurement of electrons from beauty-hadron decays in pp and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV

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