Year: 2026
Type: preprint
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.
Source: arXiv (Cornell University)
Institutions: University of London, Royal Holloway University of London, University of Milan, Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Michigan State University, University of Bern, Universidad Nacional Autónoma de México, RWTH Aachen University, Durham University, European Organization for Nuclear Research, Monash University, Brookhaven National Laboratory, University of Liverpool
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7222996936