Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-11-07
Phys.Lett.B644:370-374,2007
Physics
High Energy Physics
High Energy Physics - Theory
Latex, 11 pages, v.2, two misprints corrected
Scientific paper
10.1016/j.physletb.2006.12.027
The hierarchy of conformally coupled scalars with the increasing scaling dimensions $\Delta_{k}=k-d/2$, $k=1,2,3,... $ connected with the $k$-th Euler density in the corresponding space-time dimensions $d\geq 2k$ is proposed. The corresponding conformal invariant Lagrangian with the $k$-th power of Laplacian for the already known cases $k=1,2$ is reviewed, and the subsequent case of $k=3$ is completely constructed and analyzed.
Manvelyan Ruben
Tchrakian D. H.
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