Massive tree-level splitting functions beyond kinematical limits
High Energy Physics - Phenomenology
2026-02-16 v2
Abstract
We present a compact form of the massive tree-level QCD splitting functions and discuss a decomposition of the results in terms of lower-order expressions, scalar dipole antenna functions and pure higher-order remainders. The two-gluon radiator functions introduced in this context are novel and generalize expressions obtained from the double-soft approximation. Our results are obtained without reference to soft or quasi-collinear limits.
Cite
@article{arxiv.2512.07025,
title = {Massive tree-level splitting functions beyond kinematical limits},
author = {Stefan Höche and Matt LeBlanc and Jennifer Roloff and Grant Whitman},
journal= {arXiv preprint arXiv:2512.07025},
year = {2026}
}
Comments
16 pages, 7 figures