Maximal-helicity-violating scattering of gluons and gravitons in chiral strong fields
We present all-multiplicity formulas for the tree-level scattering of gluons and gravitons in the maximal helicity violating (MHV) helicity configuration, calculated in certain chiral strong fields. The strong backgrounds we consider are self-dual plane waves in gauge theory and general relativity,...
Main Authors: | , , |
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Format: | Journal article |
Language: | English |
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American Physical Society
2020
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author | Adamo, T Mason, L Sharma, A |
author_facet | Adamo, T Mason, L Sharma, A |
author_sort | Adamo, T |
collection | OXFORD |
description | We present all-multiplicity formulas for the tree-level scattering of gluons and gravitons in the maximal helicity violating (MHV) helicity configuration, calculated in certain chiral strong fields. The strong backgrounds we consider are self-dual plane waves in gauge theory and general relativity, which are treated exactly and admit a well-defined S matrix. The gauge theory background-coupled MHV amplitude is simply a dressed analog of the familiar Parke-Taylor formula, but the gravitational version has nontrivial new structures due to graviton tails. Both formulas have just one residual integral rather than the n-2 expected at n points from space-time perturbation theory; this simplification arises from the integrability of self-dual backgrounds and their corresponding twistor description. The resulting formulas pass several consistency checks and limit to the well-known expressions for MHV scattering of gluons and gravitons when the background becomes trivial. |
first_indexed | 2024-03-07T05:55:46Z |
format | Journal article |
id | oxford-uuid:ea6df581-a933-4c05-b0e1-394727713f55 |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-07T05:55:46Z |
publishDate | 2020 |
publisher | American Physical Society |
record_format | dspace |
spelling | oxford-uuid:ea6df581-a933-4c05-b0e1-394727713f552022-03-27T11:02:25ZMaximal-helicity-violating scattering of gluons and gravitons in chiral strong fieldsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ea6df581-a933-4c05-b0e1-394727713f55EnglishSymplectic ElementsAmerican Physical Society2020Adamo, TMason, LSharma, AWe present all-multiplicity formulas for the tree-level scattering of gluons and gravitons in the maximal helicity violating (MHV) helicity configuration, calculated in certain chiral strong fields. The strong backgrounds we consider are self-dual plane waves in gauge theory and general relativity, which are treated exactly and admit a well-defined S matrix. The gauge theory background-coupled MHV amplitude is simply a dressed analog of the familiar Parke-Taylor formula, but the gravitational version has nontrivial new structures due to graviton tails. Both formulas have just one residual integral rather than the n-2 expected at n points from space-time perturbation theory; this simplification arises from the integrability of self-dual backgrounds and their corresponding twistor description. The resulting formulas pass several consistency checks and limit to the well-known expressions for MHV scattering of gluons and gravitons when the background becomes trivial. |
spellingShingle | Adamo, T Mason, L Sharma, A Maximal-helicity-violating scattering of gluons and gravitons in chiral strong fields |
title | Maximal-helicity-violating scattering of gluons and gravitons in chiral strong fields |
title_full | Maximal-helicity-violating scattering of gluons and gravitons in chiral strong fields |
title_fullStr | Maximal-helicity-violating scattering of gluons and gravitons in chiral strong fields |
title_full_unstemmed | Maximal-helicity-violating scattering of gluons and gravitons in chiral strong fields |
title_short | Maximal-helicity-violating scattering of gluons and gravitons in chiral strong fields |
title_sort | maximal helicity violating scattering of gluons and gravitons in chiral strong fields |
work_keys_str_mv | AT adamot maximalhelicityviolatingscatteringofgluonsandgravitonsinchiralstrongfields AT masonl maximalhelicityviolatingscatteringofgluonsandgravitonsinchiralstrongfields AT sharmaa maximalhelicityviolatingscatteringofgluonsandgravitonsinchiralstrongfields |