A field guide to event-shape observables using optimal transport
Name
13130_2025_Article_27716.pdf
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1.21 MB
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Adobe PDF
Checksum (MD5)
c079a7d51625f1ebf36d8f08a718d10f
Author(s)
Cesarotti, Cari
LeBlanc, Matt
Date Issued
December 2, 2025
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
Cesarotti, C., LeBlanc, M. A field guide to event-shape observables using optimal transport. J. High Energ. Phys. 2025, 14 (2025).
Version
Final published version
Abstract
We lay out the phenomenological behavior of event-shape observables evaluated by solving optimal transport problems between collider events and reference geometries — which we name manifold distances — to provide guidance regarding their use in future studies. This discussion considers several choices related to the metric used to quantify these distances. We explore the differences between the various options, for the first time using a combination of analytical studies and simulated minimum-bias and multi-jet events. Making judicious choices when defining the metric and reference geometry can improve sensitivity to interesting signal features and reduce sensitivity to non-perturbative effects in QCD. The goal of this article is to provide a ‘field guide’ that can inform how choices made when defining a manifold distance can be tailored for the analysis at-hand.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/JHEP12(2025)014
