Gauge Invariances and Phases of Massive Higher Spins in (A)dS

Details Gauge Invariances and Phases of Massive Higher Spins in (A)dS Gauge Invariances and Phases of Massive Higher Spins in (A)dS

2001-02-23

arxiv.org/abs/hep-th/0102166v1

Phys.Rev.Lett.87:031601,2001

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, LaTeX

Scientific paper

10.1103/PhysRevLett.87.031601

The (m^2,\Lambda) plane of spin s>1 massive fields in (A)dS backgrounds is shown to consist of separate phases, divided by lines of novel ``partially massless'' gauge theories that successively remove helicities, starting from the lowest, 0 or +/-(1/2). The norms of the excluded states flip as the gauge lines are crossed and only the region containing the massive Minkowski theory is unitary. The partially massless gauge theories are unitary or not, depending on the ordering of the gauge lines. This ``level splitting'' of massless Minkowski gauge theories is specific to non-zero \Lambda.

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