Weyl Invariance and the Origins of Mass

Details Weyl Invariance and the Origins of Mass Weyl Invariance and the Origins of Mass

2008-12-17

arxiv.org/abs/0812.3364v1

Phys.Lett.B675:93-97,2009

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, LaTeX

Scientific paper

By a uniform and simple Weyl invariant coupling of scale and matter fields, we construct theories that unify massless, massive, and partially massless excitations. Masses are related to tractor Weyl weights, and Breitenlohner-Freedman stability bounds in anti de Sitter amount to reality of these weights. The method relies on tractor calculus -- mathematical machinery allowing Weyl invariance to be kept manifest at all stages. The equivalence between tractor and higher spin systems with arbitrary spins and masses is also considered.

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