Spacetime Structure of Massive Gravitinos

Details Spacetime Structure of Massive Gravitinos Spacetime Structure of Massive Gravitinos

2002-10-04

arxiv.org/abs/hep-ph/0210084v1

Beyond the Desert 2002, IOP publication, Editor: H. V. Klapdor-Kleingrothaus, pp. 181-193

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 2 figures, uses iopart.cls, Invited talk at Beyond the Desert 2002, Oulu, Finland, June 2-7, 2002

Scientific paper

The talk presents an ab initio construct of the spacetime structure underlying massive gravitinos. We argue that single spin interpretation of massive gravitino is untenable, and that a spin measurement in the rest frame for an unpolarized ensemble of massive gravitinos, would yield the results 3/2^- with probability one half, and 1/2 with probability one half. The latter is distributed uniformly, i.e. as 1/4, among the two spin-1/2^+ and spin-1/2^- states of opposite parities. From that we draw the conclusion that the massive gravitino should be interpreted as a particle of multiple spin. We expect that a extension of this work to finite-range gravity shall endow the graviton with spins 0, 1, and 2 components.

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