Integration rules for loop scattering equations

Christian Baadsgaard, N. E.J. Bjerrum-Bohr, Jacob L. Bourjaily, Poul H. Damgaard, Bo Feng

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Abstract

Abstract: We formulate new integration rules for one-loop scattering equations analogous to those at tree-level, and test them in a number of non-trivial cases for amplitudes in scalar φ3-theory. This formalism greatly facilitates the evaluation of amplitudes in the CHY representation at one-loop order, without the need to explicitly sum over the solutions to the loop-level scattering equations.

Original languageEnglish (US)
Article number80
Pages (from-to)1-20
Number of pages20
JournalJournal of High Energy Physics
Volume2015
Issue number11
DOIs
StatePublished - Nov 1 2015

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Baadsgaard, C., Bjerrum-Bohr, N. E. J., Bourjaily, J. L., Damgaard, P. H., & Feng, B. (2015). Integration rules for loop scattering equations. Journal of High Energy Physics, 2015(11), 1-20. [80]. https://doi.org/10.1007/JHEP11(2015)080