A model behind the Standard Model?

[selfAdjoint]

Two interesting papers by Chan and Tsou on the hep-th arxiv:

hep-ph/0611363

Title: Higgs Fields as Vielbeins of Internal Symmetry Space
Authors: H.M. Chan, S.T. Tsou
Comments: 24 pages
An earlier suggestion that scalar fields in gauge theory may be introduced as frame vectors or vielbeins in internal symmetry space, and so endowed with geometric significance, is here sharpened and refined. Applied to a $u(1) \times su(2)$ theory this gives exactly the Higgs structure of the standard electroweak theory. Applied to an $su(3)$ theory, it gives a structure having much in common with a phenomenological model previously constructed to explain fermion mixing and mass hierarchy. The difference in physical outcome for the two theories is here traced to the difference in structure between the two symmetry groups.


hep-ph/0611364

Title: A Model Behind the Standard Model
Authors: H.M. Chan, S.T. Tsou
Comments: 62 pages
In spite of its many successes, the Standard Model makes many empirical assumptions in the Higgs and fermion sectors for which a deeper theoretical basis is sought. Starting from the usual gauge symmetry $u(1) \times su(2) \times su(3)$ plus the 3 assumptions: (A) scalar fields as vielbeins in internal symmetry space, (B) the ``confinement picture'' of symmetry breaking, (C) generations as ``dual'' to colour, we are led to a scheme which offers: (I) a geometrical significance to scalar fields, (II) a theoretical criterion on what scalar fields are to be introduced, (III) a partial explanation of why $su(2)$ appears broken while $su(3)$ confines, (IV) baryon-lepton number (B - L) conservation, (V) the standard electroweak structure, (VI) a 3-valued generation index for leptons and quarks, and (VII) a dynamical system with all the essential features of an earlier phenomenological model which gave a good description of the known mass and mixing patterns of quarks and leptons including neutrino oscillations. There are other implications the consistency of which with experiment, however, has not yet been systematically explored.

Any comments?

 

[Evalesco]

These papers by Chan and Tsou are really interesting! They make some bold suggestions about the structure of the Standard Model and propose a model to explain the mass and mixing patterns of quarks and leptons. It will be interesting to see if their ideas are supported by further experiments in the future.

 

[sir-pinski]

These two papers offer an interesting and potentially promising approach to understanding the Higgs and fermion sectors of the Standard Model. By introducing scalar fields as vielbeins in internal symmetry space, the authors are able to provide a geometrical significance to these fields and offer a theoretical criterion for their introduction. This approach also leads to the prediction of baryon-lepton number conservation and the standard electroweak structure.

Furthermore, the incorporation of the "confinement picture" and the "dual" nature of generations sheds light on the differences between the breaking of $su(2)$ and the confinement of $su(3)$, which is a key question in understanding the structure of the Standard Model.

The potential explanation for the mass and mixing patterns of quarks and leptons, including neutrino oscillations, is also intriguing. However, as the authors themselves acknowledge, the consistency of these implications with experiment has not yet been systematically explored.

Overall, these papers present a promising model that could potentially provide a deeper theoretical basis for the Standard Model. Further exploration and testing of its predictions will be necessary to fully evaluate its validity.