Massless particles in five and higher dimensions

We describe a five-dimensional analogue of Wigner's operator equation W-a = lambda P-a, where W-a is the Pauli-Lubanski vector, Pathe energy-momentum operator, and lambda the helicity of a massless particle. Higher dimensional generalisations are also given. (C) 2020 The Author(s). Published by Elsevier B.V.

Automated summary

This paper describes a five-dimensional analogue of Wigner's operator equation involving the Pauli-Lubanski vector, energy-momentum operator, and helicity of a massless particle. Higher dimensional generalisations are also provided.