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arXiv · hep-th/0101050

Shadow multiplets and superHiggs mechanism

Davide Fabbri·Pietro Frè
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Abstract

We discuss a general feature of Freund Rubin compactifications that was previously overlooked. It consist in a curious pairing, which we call a shadow relation, of completely different (in terms of spin and mass) fields of the dimensionally reduced theory. Particularly interesting is the case where the compactification preserves a certain amount of supersymmetry, giving rise to a shadowing phenomenon between whole supermultiplets of fields. In particular, there are strong suggestions about the consistency of a massive truncation of 11D supergravity to the massless modes of the graviton supermultiplet plus the massive modes of its shadow partner. This fact has important consequences in the ${\cal N}=2$ and ${\cal N}=3$ cases, which seem to realize respectively a Higgs or a superHiggs phenomenon. In other words, we are led to reinterpret the dimensionally reduced theory as a spontaneously broken phase of some higher (super)symmetric theory.

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Davide Fabbri, Pietro Frè. 2001-01-09. Shadow multiplets and superHiggs mechanism. https://doi.org/10.1002/1521-3978(200105)49%3A4%2F6%3C475%3A%3Aaid-prop475%3E3.3.co%3B2-y

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