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  • Letter
  • Open Access

Discovery prospects for electron and neutron electric dipole moments in the general two Higgs doublet model

Wei-Shu Hou, Girish Kumar, and Sven Teunissen

  • Department of Physics, National Taiwan University, Taipei 10617, Taiwan

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Phys. Rev. D 109, L011703 – Published 16 January, 2024

DOI: https://doi.org/10.1103/PhysRevD.109.L011703

Abstract

Baryon asymmetry of the Universe offers one of the strongest hints for physics beyond the Standard Model (BSM). Remarkably, in the general two Higgs doublet model (g2HDM) that possesses a second set of Yukawa matrices, one can have electroweak baryogenesis (EWBG) while the electron electric dipole moment (eEDM) is evaded by a natural flavor tuning that echoes the Standard Model (SM). We show that eEDM may first emerge around 10−30  e cm or so, followed by neutron EDM (nEDM) down to 10−27  e cm. We illustrate a cancellation mechanism for nEDM itself, which in turn can be probed when a facility capable of pushing down to 10−28  e cm becomes available.

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Phys. Rev. D 109, L011703– Published 16 January, 2024
  • Received 14 August 2023
  • Accepted 12 December 2023
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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