Multi-lepton signatures of vector-like leptons with flavor

Understand

We investigate collider signatures of standard model extensions featuring vector-like leptons and a flavorful scalar sector.

• Such a framework arises naturally within asymptotically safe model building, which tames the UV behavior of the standard model towards the Planck scale and beyond.
• We focus on values of Yukawa couplings and masses which allow to explain the present data on the muon and electron anomalous magnetic moments.
• Using a CMS search based on $77.4 \, \rm{fb}^{-1}$ at the $\sqrt{s}=13$ TeV LHC we find that flavorful vector-like leptons are excluded for masses below around $300$ GeV if they are singlets under $SU(2)_L$, and around $800$ GeV if they are doublets.