Tensor decomposition for bosonic and fermionic scattering amplitudes
In this paper, we elaborate on a method to decompose multiloop multileg scattering amplitudes into Lorentz-invariant form factors, which exploits the simplifications that arise from considering four-dimensional external states. We propose a simple and general approach that applies to both fermionic...
| Príomhchruthaitheoirí: | , |
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| Formáid: | Journal article |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
American Physical Society
2021
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| _version_ | 1826282079272304640 |
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| author | Peraro, T Tancredi, L |
| author_facet | Peraro, T Tancredi, L |
| author_sort | Peraro, T |
| collection | OXFORD |
| description | In this paper, we elaborate on a method to decompose multiloop multileg scattering amplitudes into Lorentz-invariant form factors, which exploits the simplifications that arise from considering four-dimensional external states. We propose a simple and general approach that applies to both fermionic and bosonic amplitudes and allows us to identify a minimal number of physically relevant form factors, which can be related one to one to the independent helicity amplitudes. We discuss explicitly its applicability to various four- and five-point scattering amplitudes relevant for LHC physics. |
| first_indexed | 2024-03-07T00:38:26Z |
| format | Journal article |
| id | oxford-uuid:8236c329-f97f-42db-b855-797c6fd1793f |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:38:26Z |
| publishDate | 2021 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:8236c329-f97f-42db-b855-797c6fd1793f2022-03-26T21:35:48ZTensor decomposition for bosonic and fermionic scattering amplitudesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8236c329-f97f-42db-b855-797c6fd1793fEnglishSymplectic ElementsAmerican Physical Society2021Peraro, TTancredi, LIn this paper, we elaborate on a method to decompose multiloop multileg scattering amplitudes into Lorentz-invariant form factors, which exploits the simplifications that arise from considering four-dimensional external states. We propose a simple and general approach that applies to both fermionic and bosonic amplitudes and allows us to identify a minimal number of physically relevant form factors, which can be related one to one to the independent helicity amplitudes. We discuss explicitly its applicability to various four- and five-point scattering amplitudes relevant for LHC physics. |
| spellingShingle | Peraro, T Tancredi, L Tensor decomposition for bosonic and fermionic scattering amplitudes |
| title | Tensor decomposition for bosonic and fermionic scattering amplitudes |
| title_full | Tensor decomposition for bosonic and fermionic scattering amplitudes |
| title_fullStr | Tensor decomposition for bosonic and fermionic scattering amplitudes |
| title_full_unstemmed | Tensor decomposition for bosonic and fermionic scattering amplitudes |
| title_short | Tensor decomposition for bosonic and fermionic scattering amplitudes |
| title_sort | tensor decomposition for bosonic and fermionic scattering amplitudes |
| work_keys_str_mv | AT perarot tensordecompositionforbosonicandfermionicscatteringamplitudes AT tancredil tensordecompositionforbosonicandfermionicscatteringamplitudes |