title: Disentangling Mass and Mixing Hierarchies.
abstract: We present a fully perturbative mechanism that naturally generates mass hierarchies for the standard model (SM) fermions in a flavor-blind sector. The dynamics generating the mass hierarchies can therefore be independent from the source of flavor violation, and hence this dynamics may operate at a much lower scale. This mechanism works by dynamically enforcing simultaneous diagonalization--alignment--among a set of flavor-breaking spurions, as well as generating highly singular spectra for them. It also has general applications in model building beyond the SM, wherever alignment between exotic and SM sources of flavor violation is desired.
authors.affiliation: Department of Physics, University of California, Berkeley, California 94720, USA and Ernest Orlando Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: Simon
authors.initials: S
authors.lastname: Knapen
authors.affiliation: Department of Physics, University of California, Berkeley, California 94720, USA and Ernest Orlando Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: Dean J
authors.initials: DJ
authors.lastname: Robinson