Flavor-changing scalar interactions.

  title={Flavor-changing scalar interactions.},
  author={M Hall and Weinberg},
  journal={Physical review. D, Particles and fields},
  volume={48 3},
  • M Hall, Weinberg
  • Published 1993 in Physical review. D, Particles and fields
The smallness of fermion masses and mixing angles has recently been been attributed to approximate global U(1) symmetries, one for each fermion type. The parameters associated with these symmetry breakings are estimated here directly from observed masses and mixing angles. It turns out that although flavor changing reaction rates may be acceptably small in electroweak theories with several scalar doublets without imposing any special symmetries on the scalars themselves, such theories… CONTINUE READING