Physics Seminar – “Spin polarizations in heavy ion collisions” with Dr. Matteo Buzzegoli
Physics Seminar
February 24, 2023
11:00 AM - 12:00 PM
Location
SES 2214
Calendar
Download iCal FileMatteo Buzzegoli of Iowa State University joins us to speak about his research titled "Spin polarization in heavy ion collisions."
Abstract:
“By measuring the spin polarization of hadrons produced in heavy-ion collisions, it was found that the quark gluon plasma is the most "vorticous" fluid ever observed. This opens the possibility for new phenomenological investigations of spin physics in fluids. Spin polarization is mainly caused by the spin-rotation coupling in relativistic hydrodynamics. Predictions on spin polarization can be made starting from a notion of local thermal equilibrium which is compatible with quantum field theory. In this talk I review this approach and I compare it with kinetic theory. Following this framework, I also show that there is an additional coupling between the spin and the shear flow, which was previously neglected and that is necessary to reproduce the data on the momentum dependence of spin polarization. I will also discuss the contribution from magnetic field, how pseudo-gauge transformations affect the predictions of spin polarization and possible future applications.”
Date posted
Jan 30, 2023
Date updated
Jan 30, 2023