Work

Simplifying D -dimensional physical-state sums in gauge theory and gravity

Year: 2022

Type: article

Abstract: We provide two independent systematic methods of performing $D$-dimensional physical-state sums in gauge theory and gravity in such a way so that spurious light-cone singularities are not introduced. A natural application is to generalized unitarity in the context of dimensional regularization or theories in higher spacetime dimensions. Other applications include squaring matrix elements to obtain cross sections, and decompositions in terms of gauge-invariant tensors.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.105.056025

Author: Dimitrios Kosmopoulos

Institution: University of California, Los Angeles

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: U.S. Department of Energy

Award: EXPERIMENTAL AND THEORETICAL HIGH ENERGY PHYSICS RESEARCH AT UCLA