Determining the stau trilinear coupling in supersymmetric Higgs decays
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