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Soft Graviton Theorem in Arbitrary Dimensions · Around

2014

Soft Graviton Theorem in Arbitrary Dimensions

Afkhami-Jeddi, Nima

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In this note we show that the recent conjecture proposed by Cachazo and Strominger holds at tree level in arbitrary dimensions.

The proof makes crucial use of the fact that the sub-leading operator is defined using the total angular momentum operator.
A key ingredient that makes the proof possible is the CHY formula for graviton amplitudes in arbitrary number of dimensions.

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S. Weinberg, Phys. Rev. 140
1965
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F. Cachazo and A. Strominger, “Evidence for a New Soft Graviton Theorem,” arXiv:1404.4091 [hep-th]
Original
Cited in the paper.
F. Cachazo, S. He and E. Y. Yuan, “Scattering Equations and KLT Orthogonality,” arXiv:1306.6575 [hep-th]
Original
Cited in the paper.
F. Cachazo, S. He and E. Y. Yuan, “Scattering of Massless Particles in Arbitrary Dimension,” arXiv:1307.2199 [hep-th]
Original
Cited in the paper.
B. U. W. Schwab and A. Volovich, “Subleading soft theorem in arbitrary dimension from scattering equations,” arXiv:1404.7749 [hep-th]
Original
Cited in the paper.

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