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arXiv · 1409.4771

Graviton as a Pair of Collinear Gauge Bosons

Stephan Stieberger·Tomasz R. Taylor
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Abstract

We show that the mixed gravitational/gauge superstring amplitudes describing decays of massless closed strings - gravitons or dilatons - into a number of gauge bosons, can be written at the tree (disk) level as linear combinations of pure open string amplitudes in which the graviton (or dilaton) is replaced by a pair of collinear gauge bosons. Each of the constituent gauge bosons carry exactly one half of the original closed string momentum, while their +/- 1 helicities add up to +/- 2 for the graviton or to 0 for the dilaton.

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Stephan Stieberger, Tomasz R. Taylor. 2014-09-23. Graviton as a Pair of Collinear Gauge Bosons. https://doi.org/10.1016/j.physletb.2014.10.057

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