Massless limit of massive self-interacting vector fields

Fuente: arXiv
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Hauptverfasser: Banerjee, Nabamita, Singh, Jitesh
Format: Preprint
Veröffentlicht: 2025
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author Banerjee, Nabamita
Singh, Jitesh
author_facet Banerjee, Nabamita
Singh, Jitesh
contents We study massive self-interacting vector field theories with mass added ``by hand". We show that the massless limit of the quartic self-interacting vector field theory is not smooth. Pathological behavior of the theory is not limited only at the classical level, even at the quantum level unitarity is violated at the two-loop. Using the Vainshtein mechanism, we show that it fails beyond the strong-coupling scale and hence a massless limit is not smooth even in quantum theory.
format Preprint
id arxiv_https___arxiv_org_abs_2505_22119
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Massless limit of massive self-interacting vector fields
Banerjee, Nabamita
Singh, Jitesh
High Energy Physics - Theory
We study massive self-interacting vector field theories with mass added ``by hand". We show that the massless limit of the quartic self-interacting vector field theory is not smooth. Pathological behavior of the theory is not limited only at the classical level, even at the quantum level unitarity is violated at the two-loop. Using the Vainshtein mechanism, we show that it fails beyond the strong-coupling scale and hence a massless limit is not smooth even in quantum theory.
title Massless limit of massive self-interacting vector fields
topic High Energy Physics - Theory
url https://arxiv.org/abs/2505.22119