Abstract
The rare decay has a very small rate in the Standard Model, due to a strong cancellation between the direct and indirect diagrams. Models with a changed coupling can thus lead to a great increase in this decay. Current limits on two Higgs doublet models still allow for the possibility that the coupling might have a sign opposite to the Standard Model, the so-called “wrong-sign.” We show how can be used to put limits on the wrong-sign solutions.
- Received 15 August 2016
DOI:https://doi.org/10.1103/PhysRevD.94.075017
© 2016 American Physical Society