In an earlier work we analyzed the $CP$-even scalar sector of an ${\mathsf{S}}_3$ flavor model, where we identified some novel decay signatures of an exotic scalar. In this work we extend our analysis by including the complete set of scalars/pseudoscalars, revisiting the potential minimization conditions in a more general setup, setting the spectrum in conformity with the current LHC limits on the scalar mass, and identifying yet another spectacularly novel decay channel which might be revealed from an intense study of rare top decays at the LHC into modes containing multileptons of different flavors.

• Received 21 June 2012

DOI:https://doi.org/10.1103/PhysRevD.86.036009