Strings on celestial sphere

We transform superstring scattering amplitudes into the correlation functions of primary conformal fields on two-dimensional celestial sphere. The points on celestial sphere are associated to the asymptotic directions of (light-like) momenta of external particles, with the Lorentz group realized as...

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Bibliographic Details
Main Authors: Stephan Stieberger, Tomasz R. Taylor
Format: Article
Language:English
Published: Elsevier 2018-10-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321318302463