Determining the Stau Trilinear Coupling A_tau in Supersymmetric Higgs Decays

Choi, S. Y.; Martyn, H. -U.; Zerwas, P. M.

Determining the Stau Trilinear Coupling A_tau in Supersymmetric Higgs Decays

Authors

Choi, S. Y.

Martyn, H. -U.

Zerwas, P. M.

Description

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 H,A -> stau_1 stau_2 to stau pairs are investigated for measuring the stau trilinear coupling A_tau. 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 $_tau can be determined with a precision at the 10% level in the region of moderate to large tan(beta).
13 pages