Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-08-07
JHEP 0601:052,2006
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX, 37 pages. References and comments added. Published version
Scientific paper
10.1088/1126-6708/2006/01/052
We study the problem of consistent interactions for spin-3 gauge fields in flat spacetime of arbitrary dimension n>3. Under the sole assumptions of Poincar\'e and parity invariance, local and perturbative deformation of the free theory, we determine all nontrivial consistent deformations of the abelian gauge algebra and classify the corresponding deformations of the quadratic action, at first order in the deformation parameter. We prove that all such vertices are cubic, contain a total of either three or five derivatives and are uniquely characterized by a rank-three constant tensor (an internal algebra structure constant). The covariant cubic vertex containing three derivatives is the vertex discovered by Berends, Burgers and van Dam, which however leads to inconsistencies at second order in the deformation parameter. In dimensions n>4 and for a completely antisymmetric structure constant tensor, another covariant cubic vertex exists, which contains five derivatives and passes the consistency test where the previous vertex failed.
Bekaert Xavier
Boulanger Nicolas
Cnockaert Sandrine
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