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2013

Matching Fully Differential NNLO Calculations and Parton Showers

Alioli, Simone, Bauer, Christian W., Berggren, Calvin et al.

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We present a general method to match fully differential next-to-next-to-leading (NNLO) calculations to parton shower programs.

We discuss in detail the perturbative accuracy criteria a complete NNLO+PS matching has to satisfy.
Our method is based on consistently improving a given NNLO calculation with the leading-logarithmic (LL) resummation in a chosen jet resolution variable.
The resulting NNLO$+$LL calculation is cast in the form of an event generator for physical events that can be directly interfaced with a parton shower routine, and we give an explicit construction of the input "Monte Carlo cross sections" satisfying all required criteria.

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