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v3.3.2
Jet cross sections at high-energy colliders exhibit intricate patterns of logarithmically enhanced higher-order corrections. In particular, so-called non-global logarithms emerge from soft radiation emitted off energetic partons inside jets. While this is a single-logarithmic effect at lepton colliders, at hadron colliders phase factors in the amplitudes lead to double-logarithmic corrections starting at four-loop order. In my talk I’ll explain the origin of these ``super-leading logarithms'’ and discuss their resummation, which we recently achieved in 2107.01212, based on renormalization group methods.