Artículos de revistas
Unitarity of higher derivative spin-3 models
Fecha
2020-03-01Registro en:
Annals of Physics, v. 414.
1096-035X
0003-4916
10.1016/j.aop.2020.168076
2-s2.0-85078117117
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
The fourth order in derivatives New Massive Gravity model NMG, describes a massive spin-2 particle in D=2+1. At the linearized level a proof of unitarity necessarily implies that the generalization to higher dimensions includes non-unitary massless spin-2 modes. The linearized version of NMG is dual to the Fierz-Pauli model FP. Here we examine the unitarity of higher derivative spin-3 models, analogous to the NMG, dual to the Singh-Hagen model SH. We find that the same kind of restriction on the dimension of the space also happens in this case, and the models are physical only in D=2+1.