Jongbae Kim 1998 J. Phys. G: Nucl. Part. Phys. 24 1881 doi:10.1088/0954-3899/24/10/006
Explanation of the masses of quarks and leptons in a supersymmetric preon model
Jongbae Kim
Show affiliationsWe have studied whether the radiative effects including gauge and Yukawa interaction corrections can improve the phenomenological consequences on the masses of quarks and leptons in the supersymmetric preon model. Our study shows that pure renormalization effects in the region from the metacolour scale to the electroweak scale produce quark-lepton distinction within a given family. They cannot, however, produce the desired up-down distinction or the expected quark-lepton asymmetry in the effective hierarchy parameter 
of the up, down and lepton sectors. It also shows that the pure radiative corrections cannot explain the `fine structure' effects exhibited by 
. These lead us to conclude that the symmetry structure of the preon theory cannot strictly respect left-right, up-down and quark-lepton symmetries near and below the Planck scale. This subsequently implies the 
symmetry both as regards unification of couplings near the Planck scale in the model and as regards its possible origin from a superstring theory.
- PACS
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12.60.Jv Supersymmetric models
11.30.Ly Other internal and higher symmetries
11.15.Ex Spontaneous breaking of gauge symmetries
- Subjects
- Dates
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Issue 10 (October 1998)
Received 8 December 1997
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Explanation of the masses of quarks and leptons in a supersymmetric preon model
Jongbae Kim 1998 J. Phys. G: Nucl. Part. Phys. 24 1881
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