A subtraction scheme for massive QED
Abstract We present an extension of the FKS subtraction scheme beyond next-to-leading order to deal with soft singularities in fully differential calculations within QED with mas- sive fermions. After a detailed discussion of the next-to-next-to-leading order case, we show how to extend the scheme t...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-01-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP01(2020)085 |
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| _version_ | 1832586151522729984 |
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| author | T. Engel A. Signer Y. Ulrich |
| author_facet | T. Engel A. Signer Y. Ulrich |
| author_sort | T. Engel |
| collection | DOAJ |
| description | Abstract We present an extension of the FKS subtraction scheme beyond next-to-leading order to deal with soft singularities in fully differential calculations within QED with mas- sive fermions. After a detailed discussion of the next-to-next-to-leading order case, we show how to extend the scheme to even higher orders in perturbation theory. As an application we discuss the computation of the next-to-next-to-leading order QED corrections to the muon decay and present differential results with full electron mass dependence. |
| format | Article |
| id | doaj-art-b52b517ec69d4c3e9be6101c7cacd6ab |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-b52b517ec69d4c3e9be6101c7cacd6ab2025-01-26T12:11:03ZengSpringerOpenJournal of High Energy Physics1029-84792020-01-012020112810.1007/JHEP01(2020)085A subtraction scheme for massive QEDT. Engel0A. Signer1Y. Ulrich2Paul Scherrer InstitutPaul Scherrer InstitutPaul Scherrer InstitutAbstract We present an extension of the FKS subtraction scheme beyond next-to-leading order to deal with soft singularities in fully differential calculations within QED with mas- sive fermions. After a detailed discussion of the next-to-next-to-leading order case, we show how to extend the scheme to even higher orders in perturbation theory. As an application we discuss the computation of the next-to-next-to-leading order QED corrections to the muon decay and present differential results with full electron mass dependence.https://doi.org/10.1007/JHEP01(2020)085Precision QEDPerturbative QCDScattering AmplitudesEffective Field Theories |
| spellingShingle | T. Engel A. Signer Y. Ulrich A subtraction scheme for massive QED Journal of High Energy Physics Precision QED Perturbative QCD Scattering Amplitudes Effective Field Theories |
| title | A subtraction scheme for massive QED |
| title_full | A subtraction scheme for massive QED |
| title_fullStr | A subtraction scheme for massive QED |
| title_full_unstemmed | A subtraction scheme for massive QED |
| title_short | A subtraction scheme for massive QED |
| title_sort | subtraction scheme for massive qed |
| topic | Precision QED Perturbative QCD Scattering Amplitudes Effective Field Theories |
| url | https://doi.org/10.1007/JHEP01(2020)085 |
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