Heavy Quark Diffusion from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>2</mml:mn><mml:mo>+</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:math> Flavor Lattice QCD with 320 MeV Pion Mass
Luis Altenkort, Olaf Kaczmarek, Rasmus Larsen, Swagato Mukherjee, Péter Petreczky, Hai-Tao Shu, Simon Stendebach
Abstract
We present the first calculations of the heavy flavor diffusion coefficient using lattice QCD with light dynamical quarks corresponding to a pion mass of around 320 MeV. For temperatures 195 MeV<T<352 MeV, the heavy quark spatial diffusion coefficient is found to be significantly smaller than previous quenched lattice QCD and recent phenomenological estimates. The result implies very fast hydrodynamization of heavy quarks in the quark-gluon plasma created during ultrarelativistic heavy-ion collision experiments.
Topics & Concepts
PhysicsQuarkQuantum chromodynamicsLattice QCDDiffusionPionHeavy ionParticle physicsLattice (music)Nuclear physicsIonThermodynamicsQuantum mechanicsAcousticsHigh-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle InteractionsParticle physics theoretical and experimental studies