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High Energy Physics - Phenomenology

arXiv:1603.01388 (hep-ph)
[Submitted on 4 Mar 2016 (v1), last revised 24 Nov 2017 (this version, v2)]

Title:CP-Violation in the $ZZZ$ and $ZWW$ vertices at $e^+e^-$ colliders in Two-Higgs-Doublet Models

Authors:B. Grzadkowski, O. M. Ogreid, P. Osland
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Abstract:We discuss possibilities of measuring CP violation in the Two-Higgs-Doublet Model by studying effects of one-loop generated $ZZZ$ and $ZWW$ vertices. We discuss a set of CP-sensitive asymmetries for $ZZ$ and $W^+W^-$ production at linear $e^+e^-$-colliders, that directly depends on the weak-basis invariant Im $J_2$ that parametrises the strength of CP violation. Given the restrictions on this model that follow from the LHC measurements, the predicted effects are small. Pursuing such measurements is however very important, as an observed signal might point to a richer scalar sector.
Comments: 28 pages, v2: Signs in Eqs. (3.4) and (A.4) corrected, confirming result of arXiv:1710.05563. Fig. 2 corrected
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:1603.01388 [hep-ph]
  (or arXiv:1603.01388v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1603.01388
Related DOI: https://doi.org/10.1007/JHEP05%282016%29025

Submission history

From: Per Osland [view email]
[v1] Fri, 4 Mar 2016 09:19:22 UTC (329 KB)
[v2] Fri, 24 Nov 2017 15:58:26 UTC (328 KB)
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