Electron EDM in the complex two-Higgs doublet model
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2020
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| _version_ | 1866916740419551232 |
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| author | Altmannshofer, Wolfgang Gori, Stefania Hamer, Nick Patel, Hiren H. |
| author_facet | Altmannshofer, Wolfgang Gori, Stefania Hamer, Nick Patel, Hiren H. |
| contents | We present the first complete two loop calculation of the electron EDM in the complex two-Higgs doublet model. We confirm gauge-independence by demonstrating analytic cancellation of the gauge parameter $ξ$ in the background field gauge and the 't Hooft $R_ξ$ gauge. We also investigate the behavior of the electron EDM near the decoupling limit, and determine the short- and long-distance contributions by matching onto an effective field theory. Compared with earlier studies of the electron EDM in the complex two-Higgs doublet model, we note disagreements in several places and provide diagnoses where possible. We also provide expressions for EDMs of light quarks. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2009_01258 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Electron EDM in the complex two-Higgs doublet model Altmannshofer, Wolfgang Gori, Stefania Hamer, Nick Patel, Hiren H. High Energy Physics - Phenomenology We present the first complete two loop calculation of the electron EDM in the complex two-Higgs doublet model. We confirm gauge-independence by demonstrating analytic cancellation of the gauge parameter $ξ$ in the background field gauge and the 't Hooft $R_ξ$ gauge. We also investigate the behavior of the electron EDM near the decoupling limit, and determine the short- and long-distance contributions by matching onto an effective field theory. Compared with earlier studies of the electron EDM in the complex two-Higgs doublet model, we note disagreements in several places and provide diagnoses where possible. We also provide expressions for EDMs of light quarks. |
| title | Electron EDM in the complex two-Higgs doublet model |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2009.01258 |