[SLAC] [SLAC Pubs and Reports]
Possible Origin of Fermion Chirality and Gut Structure From Extra Dimensions
AbstractThe fundamental chiral nature of the observed quarks and leptons and the emergence of the gauge group itself are most puzzling aspects of the standard model. Starting from general considerations of topological properties of gauge field configurations in higher space- time dimensions, it is shown that the existence of non-trivial structures in ten dimensions would determine a class of models corresponding to a grand unified GUT structure with complex fermion representations with respect to SU(3)C × SU(2)L × U(1)Y. The discussion is carried out within the framework of string theories with characteristic energy scales below the Planck mass. Avoidance of topological obstructions upon continuous deformation of field configurations leads to global chiral symmetry breaking of the underlying fundamental theory, imposes rigorous restrictions on the structure of the vacuum and space-time itself and determines uniquely the gauge structure and matter content.
- slac-pub-7964 (185 KB)
- slac-pub-7964 (74.3 KB)
Alternate download methods: old, ancient*
*download methods - technical info
- slac-pub-7964 (32 KB)
Notes1) The present version of SLAC-PUB-7964 was revised in July 1999 from the original version published at SLAC in October 1998.
2)The PDF version of this document was distilled from a PostScript file most likely created from LaTeX source which used Type 3 fonts. The resultant PDF may be unreadable on the screen at the default viewing magnification (fonts will appear bitmapped, jagged), though the type will be legible at higher magnifications.
Despite the cosmetic problems resulting from the use Type 3 fonts in the original source file, such PDF files print without problems; likewise, the onscreen text is searchable and selectable.
More InformationFull bibliographic data for this document, including its complete author list, is (or soon will be) available from SLAC's SPIRES-HEP Database.
Please report problems with this file to firstname.lastname@example.org. The SLAC preprint inventory is provided by the SLAC Technical Publications Department.
Page generated 04 Apr 2001 @ 15:08 PDT by htmlme.pl