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30 September 2018 to 5 October 2018
Aix-Les-Bains, Savoie, France
Europe/Zurich timezone

Jets in non-equilibrium quark-gluon plasma

2 Oct 2018, 15:20
Aix-Les-Bains, Savoie, France

Aix-Les-Bains, Savoie, France

Aix-Les-Bains, Congress Center Student Lectures Day: September 30 at CERN
2a) Jets and high-pT hadrons (TALK) Parallel 2


Sigtryggur Hauksson (McGill University)


In this talk we study jets in non-equilibrium quark-gluon plasma using new theoretical tools developed for photons [1]. Jets broaden through radiation which is suppressed because of coherent interaction with the medium. We analyze this radiation when the medium is not in thermal equilibrium. Jet observables can then be used to gain direct access to non-equilibrium properties of the QGP, such as its shear viscosity and other transport coefficients. As an example we consider the anisotropic plasma formed in early stages of heavy-ion collisions [2]. Momentum broadening is reduced in the direction of the anisotropy which affects the rapidity dependence of jet observables. Finally, we discuss how to generalize our calculation to higher anisotropy where momentum broadening becomes singular because of rapid growth in gluon density. This requires us to incorporate background chromomagnetic fields.

[1] S. Hauksson, S. Jeon, C. Gale, Phys. Rev. C 79, 014901 (2018)
[2] P. Romatschke, M. Strickland, Phys. Rev. D 68, 036604 (2003)

Primary authors

Sigtryggur Hauksson (McGill University) Sangyong Jeon (McGill University) Prof. Charles Gale (McGill University)

Presentation materials