Seminars
# S. Carignano - Power corrections to the HTL effective Lagrangian of QED

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by

→
Europe/Rome

Pontecorvo room (LNGS)
### Pontecorvo room

#### LNGS

Description

I will discuss some recent computations in thermal field theory centered around the Hard Thermal Loop/ Hard Dense Loop formalism.

First, I will focus on the derivation of power corrections to the HTL effective Lagrangian and introduce the On-Shell effective field theory (OSEFT) as a tool to systematically derive these contributions. I will then show how the OSEFT Lagrangian can be used to derive the equations of relativistic chiral kinetic theory. Finally, I will show results for the damping rate of a fermion in a chirally imbalanced system and discuss the fate of the chiral instability at vanishing temperature.

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Stefano Carignano

Departament de Fisica Quantica i Astrofisica

Universitat de Barcelona