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Geometric massive higher spins and current exchanges
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DOI：10.1002/prop.200810547.png)
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Generalised Fierz-Pauli mass terms allow to describe massive higher-spin fields on flat background by means of simple quadratic deformations of the corresponding geometric, massless Lagrangians. In this framework there is no need for auxiliary fields. We briefly review the construction in the bosonic case, and study the interaction of these massive fields with external sources, computing the corresponding propagators. In the same fashion as for the massive graviton, but differently from theories where auxiliary fields are present, the structure of the current exchange is completely determined by the form of the mass term itself. (c) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Keyword:
field theory
higher spins
massive representations
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F
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7.8
论文数:
2.0K
被引数:
3.6K
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