We show how implementing invariance under divergence-free gauge transformations leads to a remarkably simple Lagrangian description of massless bosons of any spin. Our construction covers both flat and (A)dS backgrounds and extends to tensors of arbitrary mixed-symmetry type. Irreducible and traceless fields produce single-particle actions, while whenever trace constraints can be dispensed with the resulting Lagrangians display the same reducible, multi-particle spectra as those emerging from the tensionless limit of free open-string field theory. For all explored options the corresponding kinetic operators take essentially the same form as in the spin-one, Maxwell case.
Titolo: | Maxwell-like Lagrangians for higher spins |
Autori: | |
Data di pubblicazione: | 2013 |
Rivista: | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/JHEP03(2013)168 |
Appare nelle tipologie: | 1.1 Articolo in rivista |