Fermion masses from symmetry

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

We present a model with continuous or discrete abelian generation group G, which predicts all orders of magnitude for fermion masses ad mixings correctly as a function of only one small parameter φS M ≈ 1 10. Here φS is the scale of G symmetry breaking and M the fundamental mass scale of the theory. No small Yukawa couplings or special choices of the scalar potential are needed. We perform a systematic computerized scan for similar models with abelian generation group and we find a few other examples. However, for a wide range of charges we find no anomaly free continuous symmetry and also none without mixed SU(3) × SU(2) × U(1), U(1)G anomalies consistent with realistic fermion masses if G is broken by one field with definite charge. We also scan a class of models with generation symmetry derived from a higher dimensional framework.

Detaljer

Författare
Externa organisationer
  • German Electron Synchrotron (DESY)
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Annan fysik
Originalspråkengelska
Sidor (från-till)237-267
Antal sidor31
TidskriftNuclear Physics, Section B
Volym283
StatusPublished - 1987
PublikationskategoriForskning
Peer review utfördJa
Externt publiceradJa