2006/05/31 by C. R. Das, Л. В. Лаперашвили, Larisa Laperashvili
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #hep-lat #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.74.035007
published as Phys.Rev. D74 (2006) 035007 · 26 pages, 4 figures; Poster presented at 33rd International Conference on High Energy Physics (ICHEP 06), Moscow, Russia, 26 July - 2 August, 2006
openalex publication_date 2006/08/17 · arxiv created 2006/11/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In the present paper a model of preons and their composites is constructed in the framework of the superstring-inspired flipped E6\ifmmode×\else\texttimes\fi\stackrel\texttildelowE6 gauge symmetry group which reveals a generalized dual symmetry. Here E6 and \stackrel\texttildelowE6 are nondual and dual sectors of the theory with hyperelectric g and hypermagnetic \stackrel\texttildelowg charges, respectively. We follow the old idea by J. Pati presuming that preons are dyons, which in our model are confined by hyper-magnetic strings---composite N=1 supersymmetric non-Abelian flux tubes created by the condensation of spreons near the Planck scale. Considering preons belonging to the 27-plet of E6, we have investigated the breakdown of E6 (and \stackrel\texttildelowE6) near the Planck scale into the SU(6)\ifmmode×\else\texttimes\fi\phantom\rule0ex0exU(1) (and \stackrel\texttildelowSU(6)\ifmmode×\else\texttimes\fi\stackrel\texttildelowU(1)) gauge group and shown that the six types of strings having fluxes \ensuremathΦn=n\ensuremathΦ0 (n=\ifmmode±\else\textpm\fi1,\ifmmode±\else\textpm\fi2,\ifmmode±\else\textpm\fi3) produce three (and only three) generations of composite quark-leptons and bosons. The model predicts the existence of the Family replicated gauge group [E6]3 near the Planck scale. The runnings of the corresponding fine structure constants are investigated, and the critical coupling constants at the two phase transition points near the Planck scale are calculated. The model explains the hierarchies of masses in the standard model naturally. The compactification in a space-time with five dimensions and its influence on form-factors of composite objects are also briefly discussed.