Anomalous scaling of linear power corrections
High Energy Physics - Phenomenology
2025-07-28 v1
Abstract
Non-perturbative corrections to hadronic observables represent a critical obstacle to increasing accuracy at colliders. Long taken to scale simply as , where is the centre-of-mass scattering energy, recent work has opened the path towards calculating the anomalous dimension that modifies that scaling. A priori, the problem is complex, requiring a resummation involving arbitrary numbers of large-angle and low-energy gluons. Within a specific framework for kinematic recoil, we show that it reduces to a simple exponential for key observables like the thrust, -parameter and energy correlators. This simplicity holds for a specific hadron mass scheme, and also even beyond the two-jet limit.
Cite
@article{arxiv.2507.18696,
title = {Anomalous scaling of linear power corrections},
author = {Casey Farren-Colloty and Jack Helliwell and Rtvik Patel and Gavin P. Salam and Silvia Zanoli},
journal= {arXiv preprint arXiv:2507.18696},
year = {2025}
}
Comments
6 pages, 6 figures, plus supplemental material