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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2306.12478 |
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| _version_ | 1866914834687197184 |
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| author | Brod, Joachim Polonsky, Zachary Stamou, Emmanuel |
| author_facet | Brod, Joachim Polonsky, Zachary Stamou, Emmanuel |
| contents | CP-odd Higgs couplings to bottom and charm quarks arise in many extensions of the standard model and are of potential interest for electroweak baryogenesis. These couplings induce a contribution to the electron EDM. The experimental limit on the latter then leads to a strong bound on the CP-odd Higgs couplings. We point out that this bound receives large QCD corrections, even though it arises from a leptonic observable. We calculate the contribution of CP-odd Higgs couplings to the bottom and charm quarks in renormalisation-group improved perturbation theory at next-to-leading order in the strong interaction, thereby reducing the uncertainty to a few percent. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_12478 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | A Precise Electron EDM Constraint on CP-odd Heavy-Quark Yukawas Brod, Joachim Polonsky, Zachary Stamou, Emmanuel High Energy Physics - Phenomenology CP-odd Higgs couplings to bottom and charm quarks arise in many extensions of the standard model and are of potential interest for electroweak baryogenesis. These couplings induce a contribution to the electron EDM. The experimental limit on the latter then leads to a strong bound on the CP-odd Higgs couplings. We point out that this bound receives large QCD corrections, even though it arises from a leptonic observable. We calculate the contribution of CP-odd Higgs couplings to the bottom and charm quarks in renormalisation-group improved perturbation theory at next-to-leading order in the strong interaction, thereby reducing the uncertainty to a few percent. |
| title | A Precise Electron EDM Constraint on CP-odd Heavy-Quark Yukawas |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2306.12478 |