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Celestial double copy from the worldsheet
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DOI：10.1007/JHEP05(2021)157.png)
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摘要
En 中文
Using the ambitwistor string, we compute tree-level celestial amplitudes for biadjoint scalars, Yang-Mills and gravity to all multiplicities. They are presented in compact CHY-like formulas with operator-valued scattering equations and numerators acting on a generalized hypergeometric function. With these we extend the celestial double copy to tree-level amplitudes with arbitrary number of external states. We also show how color-kinematics duality is implemented in celestial amplitudes and its interpretation in terms of a generalized twisted cohomology theory.
Keyword:
Scattering Amplitudes
Gauge Symmetry
Superstrings and Heterotic Strings
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期刊
IF:
5.5
论文数:
4.0W
被引数:
13.7W
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