Study of Constrained Minimal Supersymmetry

Details Study of Constrained Minimal Supersymmetry Study of Constrained Minimal Supersymmetry

1993-12-13

arxiv.org/abs/hep-ph/9312272v1

Phys.Rev.D49:6173-6210,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

Michigan preprint UM-TH-93-24, LaTeX, 60 pages without figures. Complete paper with inline figures available by anonymous ftp

Scientific paper

10.1103/PhysRevD.49.6173

Taking seriously phenomenological indications for supersymmetry, we have made a detailed study of unified minimal SUSY, including effects at the few percent level in a consistent fashion. We report here a general analysis without choosing a particular unification gauge group. We find that the encouraging SUSY unification results of recent years do survive the challenge of a more complete and accurate analysis. Taking into account effects at the 5-10% level leads to several improvements of previous results, and allows us to sharpen our predictions for SUSY in the light of unification. We perform a thorough study of the parameter space. The results form a well-defined basis for comparing the physics potential of different facilities. Very little of the acceptable parameter space has been excluded by LEP or FNAL so far, but a significant fraction can be covered when these accelerators are upgraded. A number of initial applications to the understanding of the SUSY spectrum, detectability of SUSY at LEP II or FNAL, BR($b\to s\gamma$), Width($Z\to b\bar b$), dark matter, etc, are included in a separate section. We formulate an approach to extracting SUSY parameters from data when superpartners are detected. For small tan(beta) or large $m_top$ both $M_half$ and $M_0$ are entirely bounded from above at O(1 tev) without having to use a fine-tuning constraint.

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