Summary of Aspen discussions on perturbative uncertainties beyond 7-point variations

Abstract

This writeup elaborates on constructive discussions which took place at the Aspen Center for Physics, Aug - Sep 2024, during the program "Tightening the gap between scattering amplitudes and events at the LHC at higher orders". Building on already existing theoretical understanding from the study of scattering amplitudes and resummations at higher orders, we suggest to complement standard 7-point renormalisation- and factorisation-scale variations by additional estimates of missing higher-order terms which are known to be present in the perturbative series. We also summarise a recent proposal for at least one way that non-Gaussian theory uncertainties might be treated within a frequentist framework. This may help to provide more robust and comprehensive uncertainty estimates for experimental and phenomenological applications of perturbative calculations.

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BibTeX

@misc{canonero2026summary,
  title = {{Summary of Aspen discussions on perturbative uncertainties beyond 7-point variations}},
  author = {Enzo Canonero and Glen Cowan and Stefano Forte and Joey Huston and Sebastian Jaskiewicz and Manfred Kraus and Christian Preuss and Daniel Reichelt and Peter Skands and Robert Szafron and Yannick Ulrich},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.25091},
  eprint = {2610.25091},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.25091},
  note = {CC BY 4.0},
}

RIS

TY  - UNPB
TI  - Summary of Aspen discussions on perturbative uncertainties beyond 7-point variations
AU  - Enzo Canonero
AU  - Glen Cowan
AU  - Stefano Forte
AU  - Joey Huston
AU  - Sebastian Jaskiewicz
AU  - Manfred Kraus
AU  - Christian Preuss
AU  - Daniel Reichelt
AU  - Peter Skands
AU  - Robert Szafron
AU  - Yannick Ulrich
PY  - 2026
DA  - 2026/10/18
PB  - arXiv
DO  - 10.48550/arxiv.2610.25091
UR  - https://arxiv.org/abs/2610.25091
AB  - This writeup elaborates on constructive discussions which took place at the Aspen Center for Physics, Aug - Sep 2024, during the program "Tightening the gap between scattering amplitudes and events at the LHC at higher orders". Building on already existing theoretical understanding from the study of scattering amplitudes and resummations at higher orders, we suggest to complement standard 7-point renormalisation- and factorisation-scale variations by additional estimates of missing higher-order terms which are known to be present in the perturbative series. We also summarise a recent proposal for at least one way that non-Gaussian theory uncertainties might be treated within a frequentist framework. This may help to provide more robust and comprehensive uncertainty estimates for experimental and phenomenological applications of perturbative calculations.
ER  -

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