Current Exchanges and Unconstrained Higher Spins
| dc.creator | Francia, D. | |
| dc.creator | Mourad, J. | |
| dc.creator | Sagnotti, A. | |
| dc.date | 2007-01-18 | |
| dc.date | 2007-03-25 | |
| dc.date.accessioned | 2026-07-07T11:03:08Z | |
| dc.date.available | 2026-07-07T11:03:08Z | |
| dc.description | The (Fang-)Fronsdal formulation for free fully symmetric (spinor-) tensors rests on (gamma-)trace constraints on gauge fields and parameters. When these are relaxed, glimpses of the underlying geometry emerge: the field equations extend to non-local expressions involving the higher-spin curvatures, and with only a pair of additional fields an equivalent ``minimal'' local formulation is also possible. In this paper we complete the discussion of the ``minimal'' formulation for fully symmetric (spinor-) tensors, constructing one-parameter families of Lagrangians and extending them to (A)dS backgrounds. We then turn on external currents, that in this setting are subject to conventional conservation laws and, by a close scrutiny of current exchanges in the various formulations, we clarify the precise link between the local and non-local versions of the theory. To this end, we first show the equivalence of the constrained and unconstrained local formulations, and then identify a unique set of non-local Lagrangian equations which behave in exactly the same fashion in current exchanges. | |
| dc.description | 37 pages, Latex. Typos corrected, note and references added. Final version to appear in Nucl. Phys. B | |
| dc.identifier | https://arxiv.org/abs/hep-th/0701163 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0701163 | |
| dc.identifier | Nucl.Phys.B773:203-237,2007 | |
| dc.identifier | doi:10.1016/j.nuclphysb.2007.03.021 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188483 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Current Exchanges and Unconstrained Higher Spins | |
| dc.type | text |