Implementing the dynamic decay adjustment algorithm in a CNAPS parallel computer system

This paper presents the implementation of the Dynamic Decay Adjustment (DDA) algorithm in a CNAPS parallel computer system having 128 processing nodes. The DDA algorithm has several inherent advantages, and the implementation of it in the CNAPS system is shown to perform very well. The DDA implementation is first tested with noisy character patterns to demonstrate its general inherent noise resistance. A more realistic application test involving the identification of Higgs events is then presented. Using the momenta and transverse momenta of the four leading particles from the H0 → Z0Z0 → μ+μ−μ+μ− decay following gg and W+W− fusion, it is possible to obtain a good indentification of these events as well as good rejection of the background.