English

A model with bulk and brane gauge kinetic terms and SUSY breaking without hidden sector

High Energy Physics - Theory 2007-05-23 v2 High Energy Physics - Phenomenology

Abstract

We derive various solutions for the gauge field and the gaugino when there are both 5D bulk kinetic terms and 4D brane kinetic terms. Below the compactification scale 1/yc1/y_c, gauge interaction by the massless mode is universal, independent of the locations of sources, but above 1/yc1/y_c, the interaction distinguishes their locations. We consider the S1/(Z2×Z2)S^1/(Z_2\times Z_2') orbifold compactification, in which N=2 SUSY and SU(2) gauge symmetry break down to N=1 and U(1), respectively. While the odd parity gauge fields under Z2Z_2, Aμ1A^1_\mu and Aμ2A^2_\mu, interact with the bulk gauge coupling g2g^2, Aμ3A^3_\mu at low energy interacts with e2g2/(e2+g2)e^2g^2/(e^2+g^2) due to the brane kinetic term with the coupling e2e^2. Even if g2g^2, which is asymptotically free, blew up at the scale 1/yc<μ<Λcutoff1/y_c<\mu < \Lambda_{\rm cutoff}, e2g2/(e2+g2)e^2g^2/(e^2+g^2) could remain small at low energy by brane matter fields' contribution. The condensations of the gauginos Ψ1\Psi^1 and Ψ2\Psi^2 generate soft mass term of Ψ3\Psi^3 by gravity mediation.

Keywords

Cite

@article{arxiv.hep-th/0207272,
  title  = {A model with bulk and brane gauge kinetic terms and SUSY breaking without hidden sector},
  author = {Bumseok Kyae},
  journal= {arXiv preprint arXiv:hep-th/0207272},
  year   = {2007}
}

Comments

1+15 pages, 2 figures, references added, typos corrected