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山本　均 Hitoshi Yamamoto 東北大学 Tohoku University

WWS Report MDI Report. 山本　均 Hitoshi Yamamoto 東北大学 Tohoku University. 北京、十一月二十三日、二 00 六年 Beijing, Nov 24, 2006. WWS Charge. Recognize and coordinate studies on whole detector concepts, and work toward interregional detector TDRs. Interface with GDE, especially on MDI issues.

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山本　均 Hitoshi Yamamoto 東北大学 Tohoku University

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  1. WWS Report MDI Report 山本　均 Hitoshi Yamamoto 東北大学 Tohoku University 北京、十一月二十三日、二00六年 Beijing, Nov 24, 2006

  2. WWS Charge • Recognize and coordinate studies on whole detector concepts, and work toward interregional detector TDRs. • Interface with GDE, especially on MDI issues. • Keep a register of R&D relevant to LC experimental programs, identify those that are vital or missing, and ensure peer review of R&D proposals. • Organize interregional meetings and workshops. • Report to ILCSC and ICFA on the matters above. Worldwide Study on Physics and Detectors for LC (http://blueox.uoregon.edu/~lc/wwstudy) H. Yamamoto, Beijing 2006

  3. WWS Worldwide Study on Physics and Detectors for LC J. Brau F. Richard H. Yamamoto co-chairs organization committee accelerator GDE ..... ..... DCR Cost MDI R&D SiD LDC GLD panels detector concept groups MDI : machine detector interface DCR: detector concept report H. Yamamoto, Beijing 2006

  4. 3 'Major' Detector Concepts SiD 5 Tesla Silicon tracker W-Si ECAL LDC 4 Tesla TPC W-Si ECAL GLD 3 Tesla TPC W-Scint ECAL H. Yamamoto, Beijing 2006

  5. 4th Detector Concept • Dual-readout electro-magnetic calorimeter (scintillation+Cerenkov) • Triple-readout hadron calorimeter (scintillation+Cerenkov+neutron) • Double solenoid : No return yoke H. Yamamoto, Beijing 2006

  6. R&D Panel • Reviews ILC detector R&D status worldwide • Members • C. Damerell (chair) + 8 others • R&D Panel Report • http://physics.uoregon.edu/~lc/wwstudy/R&D Report-final.pdf • Urgent needs require $32M and 1870 man-years over next • 3-5 years • Established support over 3-5 years $15M and 1160 man-years • Helpful in efforts to increase funding for detector R&D in Japan and US H. Yamamoto, Beijing 2006

  7. R&D Panel Report (Salary not included) As of Jan 2006 Worldwide Study R&D panel report, 2006/1 ILC detector R&D funds (next ~4years) H. Yamamoto, Beijing 2006

  8. R&D Panel Report (Salary not included) As of May 2006 Worldwide Study R&D panel report, 2006/1 ILC detector R&D funds (next ~4years) H. Yamamoto, Beijing 2006

  9. Detector R&D Review Meetings • Purpose • Improved communication leading to enhanced R&D programmes • Format • 1 day open + 1 day closed + 1 day reporting • Associated with each ILC workshop • Beijing (Feb 07) : Tracking • DESY (LCWS Jun 07) : Calorimetry • Fermilab (Oct 07) : Vertexing • Asia (spring 08) : all else (PID, DAQ, Muon, etc.) • Review committee Members • R&D panel + external experts H. Yamamoto, Beijing 2006

  10. DCR Panel • Edits Detector Concept Report (DCR) • Physics • Editors: K. Moenig, A. Djouadi, M. Yamaguchi, Y. Okada, • M. Oreglia, J. Lykken • Concepts (based on Detector Outline Documents (DODs)) • Editors: J. Jaros, A. Miyamoto, T. Behnke • Required R&D • Editor: C. Damerell (R&D panel chair) • Costs • Editor: COST panel • “typical” detector • DCR to be released with RDR 2007.2 (Beijing) H. Yamamoto, Beijing 2006

  11. DODs (Detector Outline Documents) • Something like LOI (Letter of Intent): Physics performance, detector design concept, R&D status. ~100 pages each. • Prepared for Bangalore LCWS, Feb 06: • GLD • http://ilcphys.kek.jp/gld/documents/dod/glddod.pdf • LDC • http://www.ilcldc.org/documents/dod/outline.pdf • SiD • http://hep.uchicago.edu/~oreglia/siddod.pdf • 4th • http://www.physics.iastate.edu/getfiles/1965.pdf H. Yamamoto, Beijing 2006

  12. MDI Panel • Members: • Chair: H. Yamamoto • LEP panel (Luminosity, Energy, Polarization) • Wolfgang Lohmann, Tsunehiko Omori, Eric Torrence • GDE • Philip Bambade, Witold Kozanecki, Tom Markiewicz, • Andei Seryi • Detector concepts • Phil Burrows, Karsten Buesser, Toshiaki Tauchi (+...) • Charge: • Maintain oversight of IR/MDI issues that are relevant both to accelerator and detectors and report to WWS and GDE Area Group. Organize joint MDI sessions. H. Yamamoto, Beijing 2006

  13. MDI Panel : Crossing Angle • 14 mrad + 14 mrad crossing CCR (change control request) • Advised WWS and CCB (change control board) • Machine (cost etc.) and detector (SUSY search) issues • Conclusion: 'With this limited information, the MDI panel thinks that the 14mrad is acceptable as the baseline at this time. However, we would like to stress that the 2mrad crossing angle is clearly desirable than larger crossing angles for the slepton search, and R&Ds related to 2mrad should be encouraged.' • CCR has been accepted as the baseline. H. Yamamoto, Beijing 2006

  14. 14 mrad + 14 mrad • 2 14-mrad crossing IRs in a single hall main linac ~25m beam dumps 1 hall contains two IRs detectors H. Yamamoto, Beijing 2006

  15. ILC configuration (500 GeVCM) Current baseline (http://www.linearcollider.org/wiki/doku.php) e+ dumping ring top view e+ injection e- injection e+ source side view e- dumping ring e+ linac e- linac Not to scale • 2 IRs with 14 mrad crossing angle same z location • Angle of two linacs = 14 mrad H. Yamamoto, Beijing 2006

  16. MDI Panel: Detector Assembly • Detector assembled mostly on surface, 'CMS' style • Time saving of 2~3 years • Needed for the commissioning at t0 + 7yrs. • Supported by MDI panel. CCR accepted as baseline. H. Yamamoto, Beijing 2006

  17. MDI Panel: Muon Spoiler • CCR proposes to reduce the thickness to 18m+9m to 5m (muon background will go up) • Supported by MDI panel provided that the space for the original spoilers are kept. • CCR accepted as baseline. H. Yamamoto, Beijing 2006

  18. MDI Panel : CERN visit • CERN LHC-ILC engineering forum (Oct 12,13 2006) • Learn about surface assembly, push-pull possibility etc. • Extremely important experiences • Service cavern, air pads, safety issues etc. H. Yamamoto, Beijing 2006

  19. 1 IR with 2 detectors (push-pull) ? • Can save one entire beamline - a large cost saving • But will it work? • Historical/political issues, detector design, accelerator design, integration/engineering design. • Feasibitliy study under way • Push-pull task force (members: detector + accelerator) • A report at GDE/ECFA meeting at Valencia + discussion session. A possible way of switching 2 detectors by A. Seryi H. Yamamoto, Beijing 2006

  20. GDE Timeline • 2006.11 Valencia GDE/ECFA meeting • Final cost/design → design is frozen • 2006.12 SLAC internal cost review • 2007.1 ILC MAC(machine advisory committee) • RDR (reference design report) is presented after final correction/documentation • 2007.2 Beijing GDE/ACFA meeting • Release the final RDR • 2010 EDR (engineering document) H. Yamamoto, Beijing 2006

  21. Major Change Controls • Class-2 (major significance) change control requests so far: • Crossing angles: 20mrad + 2mrad → 14mrad + 14mrad • accepted • Positron dumping ring: 2 rings → 1 ring • accepted • Dumping rings: end of linacs → center • accepted • Cryomodule configuration, lInac length • under review • Push-pull (clearly class-2) and many others not submitted yet • Need to freeze the design → Interim Working Assumption (IWA) : inlcudes push-pull in it. H. Yamamoto, Beijing 2006

  22. Reducing #bunch by 1/2 • Reduce #number bunch by 1/2 • Reduce luminosity by 1/2 • Cost saving of 2~3% • Upgrade to the original #bunch possible • Time line? • Low-P parameter set could recover the luminosity • Beam background? • MDI panel advised WWS • WWS sent a set of questions to GDE • GDE dropped the proposal out of the interim working assumptions (IWA). H. Yamamoto, Beijing 2006

  23. ILC Parameters • 1st phase • Energy 200→500 GeV • 500 fb-1in first 4 years of physics run • Polarized e- (>80%) • 2nd phase • Energy upgrade to ~1TeV • 1000 fb-1in 3-4 years • Options • g g, ge-, e-e-, Giga-Z, WW, polarized e+ • Will release 2nd report soon Parameter committee (charged by ILCSC, chair: Rolf Heuer) 1st report: (http://www.fnal.gov/directorate/icfa/LC_parameters.pdf 2003.9.30) H. Yamamoto, Beijing 2006

  24. Detector Roadmap proposed by WWS • end 2007~ beginning 2008 • Conceptual Design Report of potential detectors (~4?) • 2008 • International Detector Advisory Group (appoined by ILCSC, recognized by ICFA) reviews CDR and guides toward 2 detectors (not a selection of two out of ~4, rather, merging of 4) • 2009~2011 • Detector EDRs developed. To be discussed within the community H. Yamamoto, Beijing 2006

  25. Detector timeline by WWS Accelerator Detector H. Yamamoto, Beijing 2006

  26. Backups

  27. SiD GLD LDC ４th

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