Speaker
Description
In relativistic heavy-ion collisions, Lorentz contracted pancake-shaped nuclear overlapped region evolves into a rapidly expanding approximately spherically shaped fireball. This shape change, though not topological in nature, influences the expansion dynamics, temperature evolution and lifetime of the medium. These, in turn, affect the rate of QCD topological transitions.
In this work, we employ a simple toy model that links the geometry of the fireball evolution to the rate of topological transitions in the QGP. We use parametric expansion dynamics and Lattice-inspired results for the sphaleron rates to estimate the total topological activity and its sensitivity to geometric parameters. The study aims to offer insights into the possible enhancement or suppression of chirality related observables in heavy-ion collisions.
