May 13 – 19, 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Penetrating probes: Jets and photons in a non-equilibrium quark-gluon plasma

May 16, 2018, 12:10 PM
Sala Casinò, 1st Floor (Palazzo del Casinò)

Sala Casinò, 1st Floor

Palazzo del Casinò

Parallel Talk Electromagnetic and weak probes Electromagnetic and weak probes


Sigtryggur Hauksson (McGill University)


In this talk, we employ new field-theoretical tools to study photons [1] and, for the first time, jets in a non-equilibrium quark-gluon plasma. Jet broadening and photon emission takes place through radiation which is suppressed by repeated and coherent interaction with the medium. We analyze this physics in a medium that is not in thermal equilibrium. This can provide independent means of extracting quark-gluon plasma transport coefficients, such as the shear viscosity, by using jets or photons. Another important application is jet quenching and photon production in the anisotropic plasma [2] created in the early stages of heavy-ion collisions. We present an analyzis of how these probes are affected by such a momentum anisotropy; more specifically we consider the rapidity dependence of photon emission and jet suppression. Finally, we discuss how to extend our work to higher anisotropy where the exponential growth of chromomagnetic fields dominates momentum broadening during radiation.

[1] S. Hauksson, S. Jeon, C. Gale, arXiv: 1709.03598.

[2] P. Romatschke, M. Strickland, Phys. Rev. D 68, 036604 (2003)

Content type Theory
Centralised submission by Collaboration Presenter name already specified

Primary authors

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

Presentation materials