The Sudakov radiator for jet observables and the soft physical coupling

30 Jul 2018Andrea BanfiBasem Kamal El-MenoufiPier Francesco Monni

We present a procedure to calculate the Sudakov radiator for a generic recursive infrared and collinear (rIRC) safe observable in two-scale problems. We give closed formulae for the radiator at next-to-next-to-leading-logarithmic (NNLL) accuracy, which completes the general NNLL resummation for this class of observables in the {\tt ARES} method for processes with two emitters at the Born level... (read more)

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