Matching and parton-shower accuracy

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch

Abstract

In this talk I investigate the interplay of NLO matching and next-to-leading-logarithmic (NLL) parton showers in the context of two-body decays. Three matching schemes have been implemented in the NLL-accurate PanScales showers: a multiplicative scheme, MC@NLO and POWHEG. By means of both analytic and numerical arguments, I show how these retain the showers NLL accuracy, and (under certain provisions in the case of POWHEG) can augment it so that it achieves NNDL accuracy for global event shapes. The talk also briefly explores some phenomenological considerations.

Original languageEnglish
Title of host publicationProceedings of Science
Subtitle of host publication16th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology (RADCOR2023)
Place of PublicationItaly
PublisherSissa Medialab, SRL
Number of pages9
Volume432
DOIs
Publication statusPublished - 22 Jan 2024
Externally publishedYes
EventInternational Symposium on Radiative Corrections, RADCOR 2023: Applications of Quantum Field Theory to Phenomenology - Crieff, Scotland, United Kingdom
Duration: 28 May 20232 Jun 2023
Conference number: 16th
https://pos.sissa.it/432/

Publication series

NameProceedings of Science
PublisherSissa Medialab, SRL
Volume432
ISSN (Print)1824-8039

Conference

ConferenceInternational Symposium on Radiative Corrections, RADCOR 2023
Abbreviated titleRADCOR 2023
Country/TerritoryUnited Kingdom
CityCrieff, Scotland
Period28/05/232/06/23
Internet address

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