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Soft Theorem of N=4 SYM in Grassmannian Formulation · Around

2014

Soft Theorem of N=4 SYM in Grassmannian Formulation

Rao, Junjie

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Inspired by the new soft theorem in gravity by Cachazo and Strominger, the soft theorem for color-ordered Yang-Mills amplitudes has also been identified by Casali.

In this note, the same content of N=4 SYM using the Grassmannian formulation is studied.
Explicitly, in the holomorphic soft limit, we reduce the n-particle amplitude in terms of Grassmannian contour integrations into the deformed (n-1)-particle amplitude by localizing k variables relevant to the n-th particle.
Afterwards, the leading soft factor and sub-leading soft operator naturally emerge.

Built on

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Similar

N. Arkani-Hamed, J. Bourjaily, F. Cachazo and J. Trnka, JHEP 1101
Original
2011
Cited alongside, same era.
J. Bourjaily, J. Trnka, A. Volovich and C. Wen, JHEP 1101
Original
2011
Cited alongside, same era.
B. U. W. Schwab, JHEP 1408
Original
2011
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E. Casali, JHEP 1408
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2014
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F. Cachazo and A. Strominger, “Evidence for a New Soft Graviton Theorem,” arXiv:1404.4091 [hep-th]
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Z. -W. Liu, “Soft theorems in maximally supersymmetric theories,” arXiv:1410.1616 [hep-th]
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Z. Bern, S. Davies, P. Di Vecchia and J. Nohle, “Low-Energy Behavior of Gluons and Gravitons from Gauge Invariance,” arXiv:1406.6987 [hep-th]
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N. Afkhami-Jeddi, “Soft Graviton Theorem in Arbitrary Dimensions,” arXiv:1405.3533 [hep-th]
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M. Zlotnikov, “Sub-sub-leading soft-graviton theorem in arbitrary dimension,” arXiv:1407.5936 [hep-th]
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C. Kalousios and F. Rojas, “Next to subleading soft-graviton theorem in arbitrary dimensions,” arXiv:1407.5982 [hep-th]
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Z. Bern, S. Davies and J. Nohle, “On Loop Corrections to Subleading Soft Behavior of Gluons and Gravitons,” arXiv:1405.1015 [hep-th]
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S. He, Y. -t. Huang and C. Wen, “Loop Corrections to Soft Theorems in Gauge Theories and Gravity,” arXiv:1405.1410 [hep-th]
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Then

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