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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| _version_ | 1797101714807980032 |
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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 |
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