Speaker
Peter Arnold
(University of Virginia)
Description
Energy loss of very high energy particles traversing a medium is dominated by the splitting processes of hard bremsstrahlung and pair production. These splitting processes are coherent over large distances, leading to a suppression known as the Landau-Pomeranchuk-Migdal (LPM) effect, relevant to both jet energy loss in quark-gluon plasmas and the evolution of cosmic ray showers. In the QCD case, there is a potentially important correction to the usual treatment of the LPM effect, arising from cases where the coherence lengths of two consecutive splitting processes overlap. I will (i) outline the physics behind the method for calculating the LPM effect and these corrections, and (ii) briefly summarize the types of results available so far.
| Oral or Poster Presentation | Oral |
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Primary author
Peter Arnold
(University of Virginia)
Co-author
Mr
Shahin Iqbal
(University of Virginia)
