Abstract:

The Java Analysis Studio (JAS, pronounced jazz...) and the hep.lcd class library provide a general framework for performing Java-based distributed analyses. The package is being developed to fully reconstruct 500 GeV to 1.5 TeV annihilation events for studying e+e- and mu+mu- detector options for future colliders. The current U.S. effort includes first-pass pattern recognition, vertex finding, clustering, track-cluster association and jet finding for use in detailed detector studies. This talk will describe the JAS/hep.lcd distributed analysis framework, some aspects of the reconstruction object modeling, a concrete example of our tracking code, and show our latest effort to reconstruct W's from hadronic jets using various energy flow algorithms.