Event reconstruction in the PHENIX central arm spectrometers

The central arm spectrometersfor the PHENIX experiment at the Relativistic Heavy Ion Colliderhave been designed for the optimization of particle identificationin relativistic heavy ion collisions. The spectrometerspresent a challenging environment for event reconstructiondue to a very high track multiplicity in a complicated, focusing, magnetic field. In order to meet this challenge, nine distinct detector types are integrated for charged particle tracking, momentum reconstruction. and particle identification. The techniques which have been developed for the task of event reconstructionare described.