Polarization dynamics from moment equations
Nora Weickgenannt, Jean-Paul Blaizot
Abstract
We derive an expression for the local transverse polarization of a boost-invariant expanding system of massive particles, which involves a set of dynamical spin moments. Starting from spin kinetic theory, we obtain a closed set of equations of motion for these spin moments. These equations are valid during the full evolution of the system, from free streaming to local equilibrium, and can be used to study polarization phenomena in relativistic heavy-ion collisions. Published by the American Physical Society 2024
Topics & Concepts
PhysicsPolarization (electrochemistry)Invariant (physics)Equations of motionClassical mechanicsTransverse planeDynamics (music)Statistical physicsQuantum mechanicsChemistryAcousticsPhysical chemistryEngineeringStructural engineeringHigh-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle InteractionsCold Atom Physics and Bose-Einstein Condensates