Violation of the Landau-Yang theorem from infrared Lorentz symmetry breaking

Asorey, M. (Universidad de Zaragoza) ; Balachandran, A. P. ; Momen, M. Arshad ; Qureshi, B.

Resumen: Lorentz symmetry forbids decays of massive spin-1 particle like the Z0 into two massless photons, a result known as the Landau-Yang theorem. But it is known that infrared effects can break Lorentz invariance. Employing the construction of Mund et al. [1] which incorporated this Lorentz violation, we propose an interaction leading to the decay Z0→ 2γ and study the dependence of the decay on the parameter of this Lorentz violation.

Idioma: Inglés

DOI: 10.1007/JHEP10(2023)028

Año: 2023

Publicado en: Journal of High Energy Physics 2023, 10 (2023), [9 pp.]
ISSN: 1126-6708

Financiación: info:eu-repo/grantAgreement/ES/DGA-FSE/E21-17R
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PGC2022-126078NB-C21

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Teórica (Dpto. Física Teórica)