Speaker
Description
We have developed a new numerical model to tackle an important problem of heavy-ion physics: the missing link between the pre-equilibrium Glasma and the resulting quark gluon plasma (QGP) stage. Our model simulates the nonperturbative production and real-time dynamics of the quarks from the Glasma. In this presentation, we will introduce our model and report on the role of particle production that is necessary for the initial conditions of the QGP.
The Glasma is modeled by the classical Yang-Mills equation on a real-time lattice. During the time evolution, the strong color fields are sampled and quarks are produced via the Schwinger mechanism. This mechanism is a nonperturbative effect, which cannot be captured by perturbative mechanisms such as those considered in effective kinetic-theories. After being produced, the quarks are evolved according to Wong's equations using a colored particle-in-cell algorithm. We will report how the obtained particle distribution includes various physics information that is necessary for the initial conditions of the QGP. This includes the initial inhomogeneities of electric charge and spin that originate from the quarks. Those are of particular importance for calculating experimental observables like electromagnetic probes and searching for the chiral magnetic effect (CME) in heavy-ion collisions.