.png){kind=icon}
.png){kind=icon}
Return
Interpreting the electron EDM constraint
.png){kind=icon}
OA
AI
DOI：10.1007/JHEP05(2019)059.png)
.png){kind=icon}
.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
The ACME collaboration has recently announced a new constraint on the electron EDM, jdej < 1 : 1 10 e 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 di ff erent 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 10TeV; 2-loop SUSY, probing multi-TeV charginos or stops; and fi nally, 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 (qf uf) (` 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 fi rst 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.
Keywords:
Beyond Standard Model
Supersymmetric Standard Model
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
5.5
Papers:
3.9W
Citations:
13.7W