Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-10-29
Nucl.Phys.B796:77-122,2008
Physics
High Energy Physics
High Energy Physics - Theory
50 pages, 3 appendices; typos corrected, comments and references added. To appear in Nucl. Phys. B
Scientific paper
10.1016/j.nuclphysb.2007.12.002
Lagrangians for massive, unconstrained, higher-spin bosons and fermions are proposed. The idea is to modify the geometric, gauge invariant Lagrangians describing the corresponding massless theories by the addition of suitable quadratic polynomials. These polynomials provide generalisations of the Fierz-Pauli mass term containing all possible traces of the basic field. No auxiliary fields are needed.
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