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arXiv · 2407.01691

Resummation of Glauber Phases in Non-Global LHC Observables for Large $N_c$

Philipp Böer·Patrick Hager·Matthias Neubert·Michel Stillger·Xiaofeng Xu
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Abstract

The Glauber series for non-global jet observables at hadron colliders simultaneously includes the super-leading logarithms alongside an arbitrary number of Glauber phases. Building on the formalism of arXiv:2405.05305, it is shown that the leading terms in this series for large $N_c$ can be resummed in closed form in renormalization-group improved perturbation theory. This remarkable observation suggests that large-$N_c$ methods might also be helpful to study other aspects of non-global logarithms at hadron colliders, and to combine our analytic results with amplitude-level parton showers.

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Philipp Böer, Patrick Hager, Matthias Neubert, Michel Stillger, Xiaofeng Xu. 2024-07-01. Resummation of Glauber Phases in Non-Global LHC Observables for Large $N_c$. https://arxiv.org/abs/2407.01691

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