Impact of NLO Weak SMEFT Corrections in $e^+e^- \rightarrow ZH$
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866909421641138176 |
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| author | Asteriadis, Konstantin Dawson, Sally Giardino, Pier Paolo Szafron, Robert |
| author_facet | Asteriadis, Konstantin Dawson, Sally Giardino, Pier Paolo Szafron, Robert |
| contents | We present results from a complete next-to-leading order (NLO) calculation of $e^+e^-\rightarrow ZH$ in the Standard Model Effective Field Theory (SMEFT) framework, including all contributions from dimension-6 operators. At NLO, there are novel dependencies on CP violating parameters in the gauge sector, on modifications to the Higgs boson self-couplings, on alterations to the top quark Yukawa couplings, and on 4-fermion operators involving the electron and the top quark, among others. We show that including only the logarithms resulting from renormalization group scaling can produce misleading results, and further, we explicitly demonstrate the constraining power of combining measurements from different energy scales. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_03557 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Impact of NLO Weak SMEFT Corrections in $e^+e^- \rightarrow ZH$ Asteriadis, Konstantin Dawson, Sally Giardino, Pier Paolo Szafron, Robert High Energy Physics - Phenomenology We present results from a complete next-to-leading order (NLO) calculation of $e^+e^-\rightarrow ZH$ in the Standard Model Effective Field Theory (SMEFT) framework, including all contributions from dimension-6 operators. At NLO, there are novel dependencies on CP violating parameters in the gauge sector, on modifications to the Higgs boson self-couplings, on alterations to the top quark Yukawa couplings, and on 4-fermion operators involving the electron and the top quark, among others. We show that including only the logarithms resulting from renormalization group scaling can produce misleading results, and further, we explicitly demonstrate the constraining power of combining measurements from different energy scales. |
| title | Impact of NLO Weak SMEFT Corrections in $e^+e^- \rightarrow ZH$ |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2406.03557 |