Two-loop leading-color helicity amplitudes for three-photon production at the LHC
We calculate all planar contributions to the two-loop massless helicity amplitudes for the process qq¯¯ → γγγ. The results are presented in fully analytic form in terms of the functional basis proposed recently by Chicherin and Sotnikov. With this publication we provide the two-loop contributions al...
Main Authors: | Chawdhry, HA, Czakon, M, Mitov, A, Poncelet, R |
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Format: | Journal article |
Language: | English |
Published: |
Springer Nature
2021
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