1. A Final Word MDI @ ILC Jan 8th, 2005 Eric Torrence University of Oregon

2. Words of Thanks  To the attendees, who made it on short notice  To the session organizers  To the local organizing committee Markiewicz, Seryi, Woods  Naomi Nagahashi

3. Purpose of MDI Machine DetectorPhysics Complicated Optimization with many parameters Need to expand knowledge beyond one particular box

4. Current MDI Goals Identify hard constraints Identify hard constraints Understand comparative advantage of parameter variations Understand comparative advantage of parameter variations Work towards complete conceptual design Work towards complete conceptual design Do not try to prejudge the final design Do not try to prejudge the final design

5. Strawman BDIR Need more than quick studies Must start designing something concrete to understand consequences of certain decisions Two angles needed to explore parameter range

6. Design Progress Significant progress in last six months Significant progress in last six months Real progress on strawman since KEK Real progress on strawman since KEK

7. Physics/Detector Communication Maintain contact with detector/physics groups Maintain contact with detector/physics groups  Important part of optimization process  Detailed studies often slow Communication at various levels Communication at various levels  Reports at detector concept meetings  LCWS  Directly with WG conveners  Regional subsystem meetings Propose specific questions, tasks

8. MDI Communication Real work is done locally Important to establish good inter-regional communication Workshops only go so far Strongly support some mailing list/forum/hypernews communication channel

9. Testbeams Some questions only answered with data Some questions only answered with data Long lead times - must identify early Long lead times - must identify early Limited resources and facilities Limited resources and facilities Try to coordinate globally Ex: ESA energy program, BPMs at ATF, Forward Detectors, …

10. Timeline LCWS - 18-22 March, Stanford BDIR Workshop (WG4) - 20-23 June, RHUL Snowmass - 13-27 August, Colorado “CDR” by end of the year? We must be ready for that possibility 1st ILC Meeting MDI Workshop BDIR Workshop Snowmass You Are Here LCWS

11. Goals from Snowmass Conceptual design largely complete Conceptual design largely complete Matrix of parameters and relative merits/impacts filled in Matrix of parameters and relative merits/impacts filled in Identify (few) remaining questions to answer by end of 2005 Identify (few) remaining questions to answer by end of 2005 Tie up loose ends before CDR Tie up loose ends before CDR

12. In Conclusion Good progress toward conceptual design Good progress toward conceptual design MDI needs to maintain good communication as designs (machine and detector) become more concrete MDI needs to maintain good communication as designs (machine and detector) become more concrete Lets get back to work… Lets get back to work…