Graviton as a Pair of Collinear Gauge Bosons

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.

10 pages, harvmac; v2: references added

References in corpus (5)

• New Relations for Gauge-Theory Amplitudes
• Evidence for a New Soft Graviton Theorem
• Soft sub-leading divergences in Yang-Mills amplitudes
• Multi-Gluon Scattering in Open Superstring Theory
• On tree amplitudes with gluons coupled to gravitons

Cited by in corpus (12)

• Einstein-Yang-Mills Scattering Amplitudes From Scattering Equations
• New Relations for Einstein-Yang-Mills Amplitudes
• Expansion of All Multitrace Tree Level EYM Amplitudes
• Relations for Einstein-Yang-Mills amplitudes from the CHY representation
• Collinear limits beyond the leading order from the scattering equations
• Graviton and gluon scattering from first principles
• Graviton Amplitudes from Collinear Limits of Gauge Amplitudes
• Extracting Bigravity from String Theory
• Lorentzian contours for tree-level string amplitudes
• Einstein Yang-Mills Amplitudes from Intersections of Twisted Forms
• Planar Zeros in Gauge Theories and Gravity
• Open & Closed vs. Pure Open String One-Loop Amplitudes