https://doi.org/10.1140/epjc/s2005-02371-1
Experimental Physics
Determining the stau trilinear coupling 
in supersymmetric Higgs decays
1
Department of Physics, Chonbuk National University, Chonju, Korea
2
I. Physikalisches Institut, RWTH Aachen, Germany
3
Deutsches Elektronensynchrotron DESY, Hamburg, Germany
The measurement of the trilinear couplings A in the part of the Lagrangian which breaks supersymmetry softly will be a difficult experimental task. In this report the heavy Higgs decays 
to stau pairs are investigated for measuring the stau trilinear coupling . Based on detailed simulations of signal and backgrounds for a specific reference point in future high luminosity e
+
e
- linear collider experiments, it is concluded that the parameter can be determined with a precision at the 10% level in the region of moderate to large 
.
© Springer-Verlag, 2005
