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arXiv · 1709.01089

ABJM $θ$-Bremsstrahlung at four loops and beyond

Marco S. Bianchi·Andrea Mauri
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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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Marco S. Bianchi, Andrea Mauri. 2017-11-27. ABJM $θ$-Bremsstrahlung at four loops and beyond. https://doi.org/10.1007/jhep11(2017)173

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