# The Breakdown of Resummed Perturbation Theory at High Energies

@inproceedings{Schenk2021TheBO, title={The Breakdown of Resummed Perturbation Theory at High Energies}, author={Sebastian Schenk}, year={2021} }

Calculations of high-energy processes involving the production of a large number of particles in weakly-coupled quantum field theories have previously signaled the need for novel nonperturbative behavior or even new physical phenomena. In some scenarios, already tree-level computations may enter the regime of large-order perturbation theory and therefore require a careful investigation. We demonstrate that in scalar quantum field theories with a unique global minimum, where suitably resummed…

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