The impact of glasma on heavy flavor azimuthal correlations and spectra

Abstract

We study the phenomenological impact of the pre-equilibrium glasma initial stage of heavy-ion collisions on heavy quark azimuthal correlations and spectra. Using our numerical solver, we simulate the transport of heavy quark test particles in an SU(3) glasma background field. The glasma field equations are formulated using classical real-time lattice gauge theory, and the heavy quark dynamics are described by classical transport equations numerically solved using the colored particle-in-cell method. For the first time, the effect of the glasma stage on the azimuthal correlations of $c\overline{c}$ and $b\overline{b}$ pairs is studied. The resulting azimuthal width ${\sigma }_{\Delta \varphi }$ exhibits a large and quick decorrelation due to the strong glasma fields. Further, we evaluate how the $p_T$-broadening in the glasma affects heavy quark $p_T$-spectra, which are initialized according to the Fixed-Order Next-to-Leading Logarithm (FONLL) heavy quark production calculation. The nuclear modification factor $R_{AA}$ is extracted for $c$ and $b$ quarks in the glasma and additional nuclear PDF effects accounting for gluon shadowing are included.

24 pages, 15 figures; v2 published in PRD

References in corpus (52)

• Implications of CTEQ global analysis for collider observables
• The Color Glass Condensate
• EPS09 - a New Generation of NLO and LO Nuclear Parton Distribution Functions
• Some Features of the Glasma
• Multi-system Bayesian constraints on the transport coefficients of QCD matter
• Towards an understanding of the RHIC single electron data
• Bayesian analysis of heavy ion collisions with the heavy ion computational framework Trajectum
• Toward a solution to the $R_{AA}$ and $v_2$ puzzle for heavy quarks
• Open heavy flavor in Pb+Pb collisions at sqrt(s)=2.76 TeV within a transport model
• Imprints of fluctuating proton shapes on flow in proton-lead collisions at the LHC
• Wilson line correlator in the MV model: relating the glasma to deep inelastic scattering
• Heavy quarks and jets as probes of the QGP
• Energy density of the Glasma
• Ultraviolet avalanche in anisotropic non-Abelian plasmas
• The shape of the proton at high energies
• Chemical thermalization in relativistic heavy ion collisions
• Expanding color flux tubes and instabilities
• Jet broadening in unstable non-Abelian plasmas
• Quark-antiquark production from classical fields in heavy ion collisions: 1+1 dimensions
• Importance of initial and final state effects for azimuthal correlations in p+Pb collisions
• Simulating jets and heavy quarks in the Glasma using the colored particle-in-cell method
• Jet momentum broadening in the pre-equilibrium Glasma
• Heavy quark diffusion in an overoccupied gluon plasma
• Memory effects on energy loss and diffusion of heavy quarks in the quark-gluon plasma
• Jet momentum broadening during initial stages in heavy-ion collisions
• Medium induced gluon spectrum in dense inhomogeneous matter
• Heavy quark diffusion coefficient in heavy-ion collisions via kinetic theory
• Ballistic diffusion of heavy quarks in the early stage of relativistic heavy ion collisions at RHIC and LHC
• Randomness in infinitesimal extent in the McLerran-Venugopalan model
• Scattering and gluon emission in a color field: a light-front Hamiltonian approach
• Jet quenching in anisotropic flowing matter
• 3-D structure of the Glasma initial state -- Breaking boost-invariance by collisions of extended shock waves in classical Yang-Mills theory
• Medium-induced radiation with vacuum propagation in the pre-hydrodynamics phase
• Observation of enhanced double parton scattering in proton-lead collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV
• Space-time structure of 3+1D color fields in high energy nuclear collisions
• Progress on 3+1D Glasma simulations
• Some Aspects of the Theory of Heavy Ion Collisions
• 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
• Heavy Quark Momentum Broadening in a Non-Abelian Plasma away from Thermal Equilibrium
• Jet quenching parameter in QCD kinetic theory
• Early Time Evolution of High Energy Heavy Ion Collisions
• On the momentum broadening of in-medium jet evolution using a light-front Hamiltonian approach
• Heavy flavor angular correlations as a direct probe of the glasma
• Parton energy loss due to synchrotron-like gluon emission
• Minijet quenching in non-equilibrium quark-gluon plasma
• Energy-momentum tensor of the dilute (3+1)D Glasma
• Evolution of eccentricities induced by geometrical and quantum fluctuations in proton-nucleus collisions
• Azimuthal angle correlations of muons produced via heavy-flavor decays in 5.02 TeV Pb+Pb and $pp$ collisions with the ATLAS detector
• Utilizing high-$p_{\perp }$ theory and data to constrain the initial stages of quark-gluon plasma
• Recent Findings from Heavy-Flavor Angular Correlation Measurements in Hadronic Collisions
• Gluon radiation from a classical point particle: Recoil effects

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