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

نویسنده

  • Bumseok Kyae
چکیده

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/yc, gauge interaction by the massless mode is universal, independent of the locations of sources, but above 1/yc, the interaction distinguishes their locations. We consider the S/(Z2 × 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 Z2, A 1 μ and Aμ, interact with the bulk gauge coupling g 2, Aμ at low energy interacts with e2g2/(e2 + g2) due to the brane kinetic term with the coupling e2. Even if g2, which is asymptotically free, blew up at the scale 1/yc < μ < Λcutoff , e2g2/(e2 + g2) could remain small at low energy by brane matter fields’ contribution. The condensations of the gauginos Ψ1 and Ψ2 generate soft mass term of Ψ3 by gravity mediation. [email protected]

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تاریخ انتشار 2008