Graviton as a Pair of Collinear Gauge Bosons
High Energy Physics - Theory
2015-06-22 v2 General Relativity and Quantum Cosmology
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.
Keywords
Cite
@article{arxiv.1409.4771,
title = {Graviton as a Pair of Collinear Gauge Bosons},
author = {Stephan Stieberger and Tomasz R. Taylor},
journal= {arXiv preprint arXiv:1409.4771},
year = {2015}
}
Comments
10 pages, harvmac; v2: references added