Abstract:
High-precision analyses of supersymmetry parameters aim at reconstructing
the fundamental supersymmetric theory and its breaking mechanism. A well
defined theoretical framework is needed when higher-order corrections are
included. We propose such a scheme, Supersymmetry Parameter Analysis SPA,
based on a consistent set of conventions and input parameters. A
repository for computer programs is provided which connect parameters in
different schemes and relate the Lagrangian parameters to physical
observables at LHC and high energy e+e- linear collider experiments, i.e.,
masses, mixings, decay widths and production cross sections for
supersymmetric particles. In addition, programs for calculating
high-precision low energy observables, the density of cold dark matter (CDM)
in the universe as well as the cross sections for CDM search experiments
are included. The SPA scheme still requires extended efforts on both the
theoretical and experimental side before data can be evaluated in the
future at the level of the desired precision. We take here an initial step
of testing the SPA scheme by applying the techniques involved to a
specific supersymmetry reference point.
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