Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-04-08
Z.Phys. C76 (1997) 327-331
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, all needed macros included, short version to appear in Z fur Physik
Scientific paper
String Unified Models based on the $k=1$ level of the Kac-Moody Algebra, predict the existence of ``exotic'' new states which carry fractional electric charges. We analyse the possibility of considering these ``exotics'' as preonic matter which can be used to form the families and the gauge group breaking higgs scalars. It is proposed that such a formation may occur provided that these states transform non-trivially under a non-Abelian gauge group with a relatively large rank in order to confine them at a sufficiently large scale. Such a situation is natural in string derived unified models, since the role of the confining group can be played by (part of) the Hidden symmetry. As an example, we present a string derived toy model based on the $SU(4)\times SU(2)_L \times SU(2)_R$ Pati-Salam gauge group.
Dimopoulos Petros
Leontaris George K.
Tracas N. D.
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