We consider massive half-integer higher spin fields coupled to an external constant electromagnetic field in flat space of an arbitrary dimension and construct a gauge invariant Lagrangian in the ...linear approximation in the external field. A procedure for finding the gauge-invariant Lagrangians is based on the BRST construction where no off-shell constraints on the fields and on the gauge parameters are imposed from the very beginning. As an example of the general procedure, we derive a gauge invariant Lagrangian for a massive fermionic field with spin 3/2 which contains a set of auxiliary fields and gauge symmetries.
The dynamics of an
N=4 spinning particle in a curved background is described using the
N=4 superfield formalism. The
SU(2)
local×
SU(2)
global
N=4 superconformal symmetry of the particle action ...requires the background to be a real “Kähler-like” manifold whose metric is generated by a sigma-model superpotential. The anti-de-Sitter spaces are shown to belong to this class of manifolds.
We demonstrate how to reconstruct standard cubic vertices for N=1 supersymmetric Yang-Mills and Supergravities using various techniques adopted for the description of cubic interactions between ...higher spin fields.
n = 4 supersymmetry for the FRW model Pashnev, A.; Rosales, J. J.; Tkach, V. I. ...
Physical review. D, Particles and fields,
10/2001, Letnik:
64, Številka:
8
Journal Article
PDF
