1. 2005.06.16 GLD central-tracker task-list (with start of assigning names to the tasks) Performance/Simulation (names) Design (names) Backgrounds/alignment/distortion correction (names) Ron Settles/MPI-Desy

2. Performance/Simulation Momentum precision needed for overall tracking? (Kato, Yamaguchi) Momentum precision needed for the TPC? (Kato,Yamaguchi) Arguments for dE/dx? (NN) Arguments for Vº detection? (NN) Requirements for –2-track resolution (in rφ and z)? (NN) –track-gamma separation (in rφ and z)? (NN,J-C Brient) Tolerance on the maximum endplate thickness? (NN,J-C Brient)

3. Design Gas-Amplification technology (R&D) –Chamber gas candidates (R&D,sim) Tracking configuration –Calorimeter diameter (sim) –TPC (sim) –Other tracking detectors (sim) TPC outer diameter (sim) TPC inner diameter (sim) TPC length (sim) Electronics design: maximum density possible? (NN) –Zeroth-order design (NN) –Is there an optimum pad size for momentum, dE/dx resolution and electronics packaging? (sim) Endplate design (Settles, Rosier, NN) –Mechanics –Minimize thickness –Cooling Field cage design (NN)

4. Backgrounds/alignment/distortion correction Revisit question of expected backgrounds. (MDI) Maximum positive-ion buildup tolerable? (Star report, Settles) Maximum occupancy tolerable? (NN) Effect of positive-ion backdrift: gating plane? (NN) Tools for correcting space charge in,presence of bad backgrounds? (NN, Wiedenmann) Required B-mapping accuracy in case of non- uniform B-field? (NN, Settles, Wiedenmann)