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Notes on BPS Wilson Loops and the Cusp Anomalous Dimension in ABJM theory
  OKC/Nordita High-Energy Physics Theory seminar

Monday 24 February 2014
from 11:00 to 12:30
at 132:028
Speaker : Daniele Marmiroli (UNUSUAL TIME) (Nordita)
Abstract : We introduce a new purely bosonic, 6 BPS Wilson loop for ABJM theory on S 3 that couples scalar fields to a latitude at an angle θ on S 2 ∈ CP 3 . Through localization of this operator, we relate the expansion of the cusp anomalous dimension at small cusp angles to the logarithmic derivative of the ABJM Wilson loop. This defines, non-perturbatively in the ’t Hooft coupling, the bremsstrahlung function B(λ) describing in three dimensions the soft radiation of a W -boson undergoing a sudden change in trajectory. We compare our results for B(λ) to the known weak/strong coupling expansions of the function h(λ) that enters integrability.

Nordita  | Last modified 19 February 2014 14:35  |  HELP