Field theory of $\mathfrak{su}(n)$: the absence of non-zero scatterings

Fuente: arXiv
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Main Authors: Boffo, Eugenia, Pulmann, Ján, Ravas, Ľuboš
Format: Preprint
Published: 2026
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author Boffo, Eugenia
Pulmann, Ján
Ravas, Ľuboš
author_facet Boffo, Eugenia
Pulmann, Ján
Ravas, Ľuboš
contents We inspect $\mathfrak{su}(n)$ forms, providing greater detail for $n=2,3$, as a toy model for a field theory in finite dimensions and with gauge symmetries. Relying on homological perturbation theory, we show that there are no scattering amplitudes with trivalent tree-level diagrams, except for the interaction vertex, thus extending a known argument of Cattaneo--Mnëv to arbitrary $n$. In contrast to this, we show how to obtain non-trivial higher products when transferring to a larger space of fields.
format Preprint
id arxiv_https___arxiv_org_abs_2605_26024
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Field theory of $\mathfrak{su}(n)$: the absence of non-zero scatterings
Boffo, Eugenia
Pulmann, Ján
Ravas, Ľuboš
Mathematical Physics
High Energy Physics - Theory
K-Theory and Homology
We inspect $\mathfrak{su}(n)$ forms, providing greater detail for $n=2,3$, as a toy model for a field theory in finite dimensions and with gauge symmetries. Relying on homological perturbation theory, we show that there are no scattering amplitudes with trivalent tree-level diagrams, except for the interaction vertex, thus extending a known argument of Cattaneo--Mnëv to arbitrary $n$. In contrast to this, we show how to obtain non-trivial higher products when transferring to a larger space of fields.
title Field theory of $\mathfrak{su}(n)$: the absence of non-zero scatterings
topic Mathematical Physics
High Energy Physics - Theory
K-Theory and Homology
url https://arxiv.org/abs/2605.26024