In ABJ(M) theory a generalized cusp can be constructed out of the 1/6-BPS Wilson line by introducing an angle φ in the spacial contour and/or an angle θ in the internal R-symmetry space. The small angles limits of its anomalous dimension are controlled by corresponding Bremsstrahlung functions. In this note we compute the internal space θ-Bremsstrahlung function to four loops at weak coupling in the planar limit. Based on this result, we propose an all order conjecture for the θ-Bremsstrahlung function.
Bianchi, M., Mauri, A. (2017). ABJM θ-Bremsstrahlung at four loops and beyond. JOURNAL OF HIGH ENERGY PHYSICS, 2017(11) [10.1007/JHEP11(2017)173].
ABJM θ-Bremsstrahlung at four loops and beyond
Bianchi, Marco S.;Mauri, Andrea
2017
Abstract
In ABJ(M) theory a generalized cusp can be constructed out of the 1/6-BPS Wilson line by introducing an angle φ in the spacial contour and/or an angle θ in the internal R-symmetry space. The small angles limits of its anomalous dimension are controlled by corresponding Bremsstrahlung functions. In this note we compute the internal space θ-Bremsstrahlung function to four loops at weak coupling in the planar limit. Based on this result, we propose an all order conjecture for the θ-Bremsstrahlung function.
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