Beyond the Narrow-Width Limit for Off-Shell and Boosted Differential Top Quark Decays
High Energy Physics - Phenomenology
2024-01-11 v1
Abstract
The standard approaches for describing top quark production and its decay dynamics are currently mostly either based on the narrow-width (NW) limit or on off-shell fixed-order calculations. In this article we present a factorised approach for boosted top quarks that combines the properties of the NW limit and off-shell computations accounting for the dominant off-shell effects in an expansion in with the hard scattering scale . We discuss the key ideas of our approach and show some preliminary results at tree-level.
Cite
@article{arxiv.2401.05035,
title = {Beyond the Narrow-Width Limit for Off-Shell and Boosted Differential Top Quark Decays},
author = {André H. Hoang and Simon Plätzer and Christoph Regner and Ines Ruffa},
journal= {arXiv preprint arXiv:2401.05035},
year = {2024}
}
Comments
Talk at the 16th International Workshop on Top Quark Physics (Top2023), 24-29 September 2023