Exploring the influence of bulk viscosity of QCD on dilepton tomography

Abstract

The collective behavior of hadrons and of electromagnetic radiation in heavy-ion collisions has been widely used to study the properties of the the Quark-Gluon Plasma (QGP). Indeed this collectivity, as measured by anisotropic flow coefficients, can be used to constrain the transport properties of QGP. The goal of this contribution is to investigate the influence of the specific bulk viscosity ($\zeta /s$) on dilepton production, both at Relativistic Heavy-Ion Collider (RHIC) and Large Hadron Collider (LHC) energies. We explore the sensitivity of dileptons to dynamical features that bulk viscosity induces on the evolution of a strongly-interacting medium, and highlight what makes them a valuable probe in the pursuit to also constrain $\zeta /s$.

25 pages, 16 figures

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• Testing thermal photon and dilepton rates
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Cited by in corpus (17)

• Running the gamut of high energy nuclear collisions
• The ALICE experiment: a journey through QCD
• A collision geometry-based 3D initial condition for relativistic heavy-ion collisions
• Multi-messenger heavy-ion collision physics
• The Present and Future of QCD
• Quantum algorithms for transport coefficients in gauge theories
• Exploring theoretical uncertainties in the hydrodynamic description of relativistic heavy-ion collisions
• Dilepton production at next-to-leading order and intermediate invariant-mass observables
• Anisotropic fluid dynamical simulations of heavy-ion collisions
• Multi-scale evolution of charmed particles in a nuclear medium
• Diffusion matrix associated with the diffusion processes of multiple conserved charges in a hot and dense hadronic matter
• Electromagnetic and weak probes: theory
• Second order relativistic viscous hydrodynamics within an effective description of hot QCD medium
• Distinguishing the sources of dielectron anisotropic flow at low beam energies
• Far-from-equilibrium hydrodynamic simulations of ultrarelativistic nuclear collisions
• Probing early-time longitudinal dynamics with the $\Lambda$ hyperon's spin polarization in relativistic heavy-ion collisions
• Dileptons at Colliders as Probes of the Quark-Gluon Plasma