STAR Integrated Tracker

We present the design and performance analysis of a new integrated track reconstruction code developed for the STAR experiment at RHIC. The code is meant to replace multiple previous tracker codes written in FORTRAN many years ago, and to readily enable integration of new and varied detector components. The new tracker is written from the ground up in C++ using a strong object -oriented model. Key features are an abstract geometry model for representation of detector components, a flexible track representation model, a built-in KALMAN filter for track parameter determination, and a powerful object factory model for fast handling of numerous small objects such as hits and tracks. Critical issues emphasized in the implementation of this new tracker are optimization of track reconstruction quality, minimization of reconstruction time, and memory footprint. The new tracker will be deployed and used for analysis of data acquired during the RHIC year 3 run of the STAR experiment.