Gauge invariance and the Englert-Brout-Higgs mechanism in non-Hermitian field theories

Autor: Jonathan Richard Ellis, Dries Seynaeve, Jean Alexandre, Peter Millington
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Alexandre, J, Ellis, J, Millington, P & Seynaeve, D 2019, ' Gauge invariance and the Englert-Brout-Higgs mechanism in non-Hermitian field theories ', Physical Review D (Particles, Fields, Gravitation and Cosmology), vol. 99, no. 7, 075024 . https://doi.org/10.1103/PhysRevD.99.075024
Physical Review
ISSN: 2470-0010
2470-0029
DOI: 10.1103/PhysRevD.99.075024
Popis: We discuss $\mathcal{PT}$-symmetric Abelian gauge field theories, as well as their extension to the Englert-Brout-Higgs mechanism for generating a mass for a vector boson. Gauge invariance is not straightforward, and we discuss the different related problems, as well as a solution which consists in coupling the gauge field to a current that is not conserved. Non-Hermiticity then necessarily precludes the Lorenz gauge condition but nevertheless allows for a consistent formulation of the theory. We therefore generalise the Englert-Brout-Higgs mechanism to $\mathcal{PT}$-symmetric field theories, opening the way to constructing non-Hermitian extensions of the Standard Model and new scenarios for particle model-building.
19 pages
Databáze: OpenAIRE