Nonplanar Cusp and Transcendental Anomalous Dimension at Four Loops in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="script">N</mml:mi><mml:mo>=</mml:mo><mml:mn>4</mml:mn></mml:math> Supersymmetric Yang-Mills Theory
Physical review letters