Supersymmetric Composite Models on Intersecting D-branes

Details Supersymmetric Composite Models on Intersecting D-branes Supersymmetric Composite Models on Intersecting D-branes

2004-01-14

arxiv.org/abs/hep-th/0401096v3

Nucl.Phys. B699 (2004) 124-134

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 2 figures

Scientific paper

10.1016/j.nuclphysb.2004.08.011

We construct supersymmetric composite models of quarks and leptons from type IIA T^6/(Z_2 x Z_2) orientifolds with intersecting D6-branes. In case of T^6 = T^2 x T^2 x T^2 with no tilted T^2, a composite model of the supersymmetric SU(5) grand unified theory with three generations is constructed. In case of that one T^2 is tilted, a composite model with SU(3)_c x SU(2)_L x U(1)_Y gauge symmetry with three generations is constructed. These models are not realistic, but contain fewer additional exotic particles and U(1) gauge symmetries due to the introduction of the compositeness of quarks and leptons. The masses of some exotic particles are naturally generated through the Yukawa interactions among "preons".

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