The Exact Bremsstrahlung Function in N=2 Superconformal Field Theories

Abstract

We propose an exact formula for the energy radiated by an accelerating quark in N=2 superconformal theories in four dimensions. This formula reproduces the known Bremsstrahlung function for N=4 theories and provides a prediction for all the perturbative and instanton corrections in N=2 theories. We perform a perturbative check of our proposal up to three loops.

7 pages, 2 figures; references added

References in corpus (6)

• The three-loop cusp anomalous dimension in QCD
• The stress tensor of a quark moving through N=4 thermal plasma
• Wilson loop correlators at strong coupling: from matrices to bubbling geometries
• Nonlinear waves in AdS/CFT correspondence
• Wilson Loops in N=2 Superconformal Yang-Mills Theory
• Cusped SYM Wilson loop at two loops and beyond

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