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Interpreting the electron EDM constraint

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3];  [2];  [2]
  1. Harvard Univ., Cambridge, MA (United States); DOE/OSTI
  2. Harvard Univ., Cambridge, MA (United States)
  3. Rutgers Univ., Piscataway, NJ (United States)
The ACME collaboration has recently announced a new constraint on the electron EDM, |de| < 1.1 × 10-29e cm, from measurements of the ThO molecule. This is a powerful constraint on CP-violating new physics: even new physics generating the EDM at two loops is constrained at the multi-TeV scale. We interpret the bound in the context of different scenarios for new physics: a general order-of-magnitude analysis for both the electron EDM and the CP-odd electron-nucleon coupling; 1-loop SUSY, probing sleptons above 10 TeV; 2-loop SUSY, probing multi-TeV charginos or stops; and finally, new physics that generates the EDM via the charm quark or top quark Yukawa couplings. In the last scenario, new physics generates a “QULE operator” ($$q_{ƒ}\overline{σ}^{μν}\overline{u}_{ƒ}$$)·($$ℓ\overline{σ}_{μν}\overline{e}$$), which in turn generates the EDM through RG evolution. If the QULE operator is generated at tree level, this corresponds to a previously studied leptoquark model. For the first time, we also classify scenarios in which the QULE operator is generated at one loop through a box diagram, which include (among others) SUSY and leptoquark models. The electron EDM bound is the leading constraint on a wide variety of theories of CP-violating new physics interacting with the Higgs boson or the top quark. We argue that any future nonzero measurement of an electron EDM will provide a strong motivation for constructing new colliders at the highest feasible energies.
Research Organization:
Harvard Univ., Cambridge, MA (United States); Rutgers Univ., Piscataway, NJ (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC)
Grant/Contract Number:
SC0010008; SC0013607
OSTI ID:
1611324
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 5 Vol. 2019; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (11)

Collapsing domain walls in the two-Higgs-doublet model and deep insights from the EDM journal October 2020
Towards a measurement of the electric dipole moment of the electron with YbF molecules text January 2020
Higgs-Boson Masses and Mixings in the MSSM with CP Violation and Heavy SUSY Particles preprint January 2019
Two-Higgs-Doublet Model with Soft CP-violation Confronting Electric Dipole Moments and Colliders text January 2020
Electroweak-like Baryogenesis with New Chiral Matter text January 2021
The Muon Smasher's Guide text January 2021
Bounds on CP-violating Higgs-gluon interactions: the case of vanishing light-quark Yukawa couplings journal November 2019
Sum rules for CP-violating operators of Weinberg type journal November 2019
Attaining the shot-noise-limit in the ACME measurement of the electron electric dipole moment journal November 2019
The metastable Q 3 Δ 2 state of ThO: a new resource for the ACME electron EDM search journal February 2020
Attaining the shot-noise-limit in the ACME measurement of the electron electric dipole moment text January 2019

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