Article ; Online: Two-Loop Electroweak Corrections with Fermion Loops to e^{+}e^{-}→ZH.
2023 Volume 130, Issue 3, Page(s) 31801
Abstract: We present a complete calculation of the next-to-next-to-leading electroweak corrections involving closed fermion loops to e^{+}e^{-}→ZH. This has been achieved by using a seminumerical technique for the two-loop vertex and box diagrams, based on Feynman ...
| Abstract | We present a complete calculation of the next-to-next-to-leading electroweak corrections involving closed fermion loops to e^{+}e^{-}→ZH. This has been achieved by using a seminumerical technique for the two-loop vertex and box diagrams, based on Feynman parameters and dispersion relations for one of the two subloops. UV divergences are treated with suitable subtraction terms. Numerical results for the unpolarized differential and integrated cross section at center-of-mass energy 240 GeV are provided. The new corrections are found to increase the predicted cross section by 0.7%. |
|---|---|
| Language | English |
| Publishing date | 2023-02-10 |
| Publishing country | United States |
| Document type | Journal Article |
| ZDB-ID | 208853-8 |
| ISSN | 1079-7114 ; 0031-9007 |
| ISSN (online) | 1079-7114 |
| ISSN | 0031-9007 |
| DOI | 10.1103/PhysRevLett.130.031801 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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