Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-06-05
Phys.Rev.D65:015003,2002
Physics
High Energy Physics
High Energy Physics - Phenomenology
32 pages LaTeX; missing factor in two-loop gauge-mediated scalar mass estimate fixed, comments on unification revised
Scientific paper
10.1103/PhysRevD.65.015003
We present 4D gauge theories which at low energies coincide with higher dimensional supersymmetric (SUSY) gauge theories on a transverse lattice. We show that in the simplest case of pure 5D SUSY Yang-Mills there is an enhancement of SUSY in the continuum limit without fine-tuning. This result no longer holds in the presence of matter fields, in which case fine-tuning is necessary to ensure higher dimensional Lorentz invariance and supersymmetry. We use this construction to generate 4D models which mimic gaugino mediation of SUSY breaking. The way supersymmetry breaking is mediated in these models to the MSSM is by assuming that the physical gauginos are a mixture of a number of gauge eigenstate gauginos: one of these couples to the SUSY breaking sector, while another couples to the MSSM matter fields. The lattice can be as coarse as just two gauge groups while still obtaining the characteristic gaugino-mediated soft breaking terms.
Csa'ki Csaba
Erlich Joshua
Grojean Christophe
Kribs G.
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