Soft-dropped observables with colorfulnnlo

Adam Kardos, Andrew Larkoski, Zoltán Trócsányi

Research output: Contribution to journalArticle


In this contribution, we present a detailed study of the effects that decrease the numerical precision in computing QCD radiative corrections to shape distributions at the next-to-next-to-leading order (NNLO) accuracy. For a specific example, we study the contributions to the distribution of soft-dropped heavy-jet mass. We focus on the edge of the phase space where the shape value becomes small and the cross section is dominated by large logarithmic contributions. We use the CoLoRFuLNNLO subtraction method that defines local subtractions in all single and double unresolved regions of the phase space.

Original languageEnglish
Pages (from-to)1891-1899
Number of pages9
JournalActa Physica Polonica B
Issue number11
Publication statusPublished - Jan 1 2019


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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