Work

A partially broken Fronsdal model for massless higher-spin particles of integer spin

Year: 2025
Type: article
Abstract: A bstract By introducing arbitrary parameters in the usual Fronsdal model, we find a region in the parameters space away from the “Fronsdal point” where we still have an irreducible description of massless particles of arbitrary integer spin s ≥ 3. The higher spin gauge symmetry is further constrained by a vanishing double divergence condition on the traceless gauge parameter: $$\partial \cdot \partial \cdot \stackrel{\text{-}}{\Lambda}=0$$ . Remarkably, it does not introduce extra propagating gauge invariants. We demonstrate that we only have spin- s helicity states as propagating modes for arbitrary integer s ≥ 3. For the simplest s = 3 case we present a gauge invariant proof while for s ≥ 4 we use a light-cone gauge. The reduction in the gauge symmetry allows for more general source couplings when compared to the Fronsdal model.
Language: English
Open Access status: diamond
OpenAlex ID: W4415244655
FWCI: 0.478
Cites: 26
Cited by: 1
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