Integration Rules for Loop Scattering Equations

Christian Baadsgaard; N. Emil J. Bjerrum-Bohr; Jacob Lewis Bourjaily; Poul Henrik Damgaard; Bo Feng

doi:10.1007/JHEP11(2015)080

Integration Rules for Loop Scattering Equations

Christian Baadsgaard, N. Emil J. Bjerrum-Bohr, Jacob Lewis Bourjaily, Poul Henrik Damgaard, Bo Feng

Teoretisk højenergi, astropartikel og gravitationel fysik

40 Citationer (Scopus)

159 Downloads (Pure)

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.

Originalsprog	Engelsk
Artikelnummer	080
Tidsskrift	Journal of High Energy Physics (Online)
Vol/bind	2015
Udgave nummer	11
ISSN	1126-6708
DOI	https://doi.org/10.1007/JHEP11(2015)080
Status	Udgivet - 1 nov. 2015

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10.1007/JHEP11(2015)080

art%3A10.1007%2FJHEP11%282015%29080Forlagets udgivne version, 369 KB

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AU - Baadsgaard, Christian

AU - Bjerrum-Bohr, N. Emil J.

AU - Bourjaily, Jacob Lewis

AU - Damgaard, Poul Henrik

AU - Feng, Bo

PY - 2015/11/1

Y1 - 2015/11/1

N2 - 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.

AB - 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.

U2 - 10.1007/JHEP11(2015)080

DO - 10.1007/JHEP11(2015)080

M3 - Journal article

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VL - 2015

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

IS - 11

M1 - 080

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Integration Rules for Loop Scattering Equations

Abstract

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