Λ polarization from thermalized jet energy

Abstract

We examine the formation of vortical "smoke rings" as a result of thermalization of energy lost by a jet. We simulate the formation and evolution of these rings using hydrodynamics and define an observable that allows to probe this phenomenon experimentally. We argue that observation of vorticity associated with jets would be an experimental confirmation of the thermalization of the energy lost by quenched jets, and also a probe of shear viscosity.

arXiv comment8 pages, 7 figures

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• Collective dynamics of polarized spin-half fermions in relativistic heavy-ion collisions
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• Vortex rings in heavy-ion collisions at energies $\sqrt{s_{NN}}=$ 3--30 GeV and possibility of their observation
• Polarization in heavy ion collisions: a theoretical review
• Probing early-time longitudinal dynamics with the $\Lambda$ hyperon's spin polarization in relativistic heavy-ion collisions
• Impact of spin polarization on transport and thermodynamic coefficients