Nuclear Theory/RIKEN seminar

"The LPM effect in energy loss and sequential bremsstrahlung"

Presented by Peter Arnold, University of Virginia

Friday, July 17, 2015, 2:00 pm — Small Seminar Room, Bldg. 510

High-energy particles passing through matter lose energy by showering via hard bremsstrahlung and pair production. At very high energy, the quantum duration of each splitting process, known as the formation time, exceeds the mean free time for collisions with the medium, leading to a significant reduction in the splitting rate, known as the Landau-Pomeranchuk-Migdal (LPM) effect. A long-standing problem in field theory has been to understand how to implement this effect in cases where the formation times of two consecutive splittings overlap. I will review why this question is interesting and discuss recent progress in the context of jet energy loss in quark-gluon plasmas.

Hosted by: Soeren Schlichting

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