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Constraints on CP-violating Higgs couplings to the third generation

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Abstract

Discovering CP-violating effects in the Higgs sector would constitute an indisputable sign of physics beyond the Standard Model. We derive constraints on the CP-violating Higgs-boson couplings to top and bottom quarks as well as to tau leptons from low-energy bounds on electric dipole moments, resumming large logarithms when necessary. The present and future projections of the sensitivities and comparisons with the LHC constraints are provided. Non-trivial constraints are possible in the future, even if the Higgs boson only couples to the third-generation fermions.

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Authors and Affiliations

  1. Department of Physics, University of Cincinnati, Cincinnati, Ohio, 45221, U.S.A

    Joachim Brod & Jure Zupan

  2. Rudolf Peierls Centre for Theoretical Physics, University of Oxford, OX1 3PN, Oxford, United Kingdom

    Ulrich Haisch

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  1. Joachim Brod
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  2. Ulrich Haisch
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  3. Jure Zupan
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Correspondence to Joachim Brod.

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ArXiv ePrint: 1310.1385

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Brod, J., Haisch, U. & Zupan, J. Constraints on CP-violating Higgs couplings to the third generation. J. High Energ. Phys. 2013, 180 (2013). https://doi.org/10.1007/JHEP11(2013)180

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  • DOI: https://doi.org/10.1007/JHEP11(2013)180

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