Constraints on low energy supersymmetry

Details Constraints on low energy supersymmetry Constraints on low energy supersymmetry

1997-11-25

arxiv.org/abs/hep-ph/9711470v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 8 figures. Talk given at the International Workshop on Quantum Effects in the MSSM, Barcelona, September 1997, to ap

Scientific paper

We review the available constraints on the low energy supersymmetry. The bulk of the electroweak data is well screened from supersymmetric loop effects, due to the structure of the theory, even with superpartners generically light, ${\cal O}(M_Z)$. The only exception are the left-handed squarks of the third generation which have to be $\simgt {\cal O}(300$ GeV) to maintain the success of the SM in describing the precision data. The other superpartners can still be light, at their present experimental mass limits. As an application of the derived constraints (supplemented by the requirement of ``naturalness'') we discuss the predictions for the mass of the lighter MSSM Higgs boson in specific scanarios of supersymmetry breaking.

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