Cheng Han Chung, Tania Robens
In this work, we present an alternative subtraction scheme for next-to-leading order QCD calculations. The subtraction terms are derived from the splitting functions of an improved parton shower with quantum interferences, and our scheme exhibits a reduced number of momentum mappings in the real emission subtraction terms and facilitates the mapping of NLO calculations with the shower. While simple cases with maximally two partons in the final state have already been presented in a previous publication, we here complete the discussion of the massless scheme by providing the final state real emission and integrated subtraction terms for processes with any number of partons in the final state. We apply our scheme to three jet production at lepton colliders at next-to-leading order and present results for the differential C-parameter distribution.
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http://arxiv.org/abs/1209.1569
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