Local Unitarity
High Energy Physics - Phenomenology
2021-11-01 v1 High Energy Physics - Theory
Abstract
Within the Local Unitarity formalism, any physical cross-section is re-written in such a way that cancellations of infrared singularities between real and virtual contributions are realised locally. Consequently, phase-space and loop integrals are regulated locally without the need of any counter-terms or dimensional regularisation aside from those strictly needed to achieve ultraviolet regularisation. This Local Unitarity representation is especially suitable to direct Monte Carlo integration. As such, it offers a clear and direct path to automate the computation of fixed-order differential observables in Quantum Field Theories.
Cite
@article{arxiv.2110.15662,
title = {Local Unitarity},
author = {Zeno Capatti},
journal= {arXiv preprint arXiv:2110.15662},
year = {2021}
}
Comments
12 pages