Summary of the working group on large magnetic spectrometers. Part I. Mid-rapidity spectrometers

The work of this group was a continuation of detector considerations developed at the 1984 Detector Workshop at LBL. At that Workshop a preliminary design was developed for a detector to track hadrons produced near mid-rapidity at relatively low collider energies of a few GeV/nucleon in each beam. For the present Workshop we extended consideration to the much higher energies and correspondingly increased yields of charged particles available with RHIC. There was also a general feeling within this group that it might be most advantageous at the beginning of the RHIC program to have a relatively simple and straight-forward detector for early measurements while one was getting the lay of the land. With this general philosophy in mind the group undertook the design of a detector which would track large numbers of particles produced near mid-rapidity over a substantial portion of the solid angle