Massive Higher Spin States in String Theory and the Principle of Equivalence

Details Massive Higher Spin States in String Theory and the Principle of Equivalence Massive Higher Spin States in String Theory and the Principle of Equivalence

1998-09-22

arxiv.org/abs/hep-th/9809142v1

Phys.Rev. D59 (1999) 104013

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, plain Tex

Scientific paper

10.1103/PhysRevD.59.104013

In this paper we study three point functions of the Type II superstring involving one graviton and two massive states, focusing in particular on the spin-7/2 fermions at the first mass level. Defining a gravitational quadrupole ``h-factor'', we find that the non-minimal interactions of string states in general are parametrized by $h\ne1$, in contrast to the preferred field theory value of h=1 (for tree-level unitarity). This difference arises from the fact that consistent gravitational interactions of strings are related to the presence of a complete tower of massive states, not present in the ordinary field theory case.

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