PoS - Proceedings of Science
Volume 432 - 16th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology (RADCOR2023) - Main session
Matching and parton-shower accuracy
L. Scyboz
Full text: pdf
Pre-published on: November 17, 2023
Published on: January 22, 2024
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.
DOI: https://doi.org/10.22323/1.432.0066
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