A novel and economical explanation for SM fermion masses and mixings

I propose the first multiscalar singlet extension
of the standard model (SM), which generates tree level top
quark and exotic fermion masses as well as one and three loop
level masses for charged fermions lighter than the top quark
and for light active neutrinos, respectively, without invoking
electrically charged scalar fields. That model, which is based
on the S3 × Z8 discrete symmetry, successfully explains the
observed SM fermion mass and mixing pattern. The charged
exotic fermions induce one loop level masses for charged
fermions lighter than the top quark. The Z8 charged scalar
singlet χ generates the observed charged fermion mass and
quark mixing pattern.