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ILC Detector

ILC Detector. Silicon Detector for ILC. ILC Detector. SLAC DOE Program Review June 7, 2006 John Jaros. Why ILC Detector R&D? Why now?.

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ILC Detector

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  1. ILCDetector Silicon Detector for ILC ILC Detector SLAC DOE Program Review June 7, 2006 John Jaros SLAC DOE Review

  2. Why ILC Detector R&D?Why now? • ILC detector requirements exceed the state of the art, and the ILC environment necessitates major advances in detector technology. Advances take time. • GDE Timeline has ILC machine TDR by 2009. Detectors are way behind. Need to catch up. • US dangerously lags Europe in ILC detector R&D and physics studies, risking a 2nd class role in ILC experiments. Time to fix. • EPP2010 Action Item 2: Achieving Readiness for the ILC “The United States should launch a major program of R&D, design, industrialization, and financing studies of the ILC accelerator and detectors. “ They mean Now. SLAC DOE Review

  3. ILC Detector Requirements for Calorimetry Goal is 30%/ √E. State of the art was 60%/√E at LEP Higgs MassMeasurement Mbb (GeV) Mbb (GeV) • Good Resolution Lowers Errors/ • Boosts Effective Luminosity • Extends Physics Reach (e.g. HHH) Mbb (GeV) Mbb (GeV) SLAC DOE Review

  4. VXD Must Handle ILC Pair BackgroundPerformance Goal  = 5  10/psin3/2 [m]>>State of the art. Precision Measurement of Higgs BranchingFractions • Environmental Challenge: Reading out a pixel VXD fast enough to avoid being swamped by pairs background from 3000 bunch crossings. No proof of principle exists. • Fundamental test of Higgs Couplings to Fermion Mass & Gauge Bosons • Distinguishes SM, MSSM, 2HD,… SLAC DOE Review

  5. …pushes detector development hard 2005 2006 2007 2008 2009 2010 Global Design Effort Project Baseline configuration * Reference Design International Linear Collider Timeline Detector Outline Documents/ ~Costs Needed * Technical Design Detector Designs/Proofs of Principle/Costs Needed ILC R&D Program Expression of Interest to Host International Mgmt

  6. US Lags in Detector R&D Resources: manpower by region Resources: equipment funds by region Report from the WWS R&D (Damerell) Panel Caveat: From a survey of existing projects only! SLAC DOE Review

  7. Coordinates the SiD Design Study with Fermilab, BNL, Argonne, many US Universities, and international partners from KEK, Tokyo, Annecy, and Oxford • Designs and studies the Machine- Detector interface and IP Instrumentation • Provides Computing-Simulation- Analysis infrastructure for the US ILC Detector Effort • Pursues detector R&D, especially Si/W Calorimetry, Readout electronics, and Si Tracking • Optimizes and Benchmarks SiD performance SLAC’s Role in ILC Detector Development . SLAC DOE Review

  8. Silicon Detector Design Study Design an ILC detector, aggressive in performance, constrained in costIdentify and develop needed detector R&DEngage an international community of physicists interested in the ILC SLAC Participants . Initiated at Victoria ALCPG 04 International Participants

  9. SiD Design Rationale • Jet energy resolution goal is 30%/E. Choose a dense, highly segmented, SiW Ecal and Hcal. • High magnetic field limits radius and cost of calorimeters and solenoid and maintains BR2. B = 5 Tesla • Si strip tracker for excellent momentum resolution and robust performance pt/pt2≤5 x 10-5 GeV-1 • VX Tracker at minimum possible radius with max Ω = 5  10/psin3/2 m • Instrumented flux return for muon identification SLAC DOE Review

  10. SiD Starting Point • 5 layer pixel VXT • 5 layer Si tracker with endcaps • Si/W Ecal and Hcal inside the coil • 5T Solenoid • Instrumented flux return for muon detection Compact: 12m x 12m x 12 m SiD is moving beyond the starting point, with subsystem designs, full G4 subsystem descriptions, pattern recognition and PFA code development, and benchmarking studies. SLAC DOE Review

  11. Silicon Detector Outline DocumentCaptures Current SiD Status See http://www-sid.slac.stanford.edu/ SLAC DOE Review

  12. SiD DOD Authors from Asia, Europe, US SLAC DOE Review

  13. ILC Machine-Detector Interface Group • Expert Group at SLAC/BNL/Oxford crosses machine/detector boundary • SiD ILC • Takashi Maruyama Ray Arnold • Ken Moffeit Lew Keller • Mike WoodsTom Markiewicz • Phil Burrows (Oxford) Andrei Seryi + Brett Parker (BNL) + others • Principal Accomplishments • EvaluateDetector backgrounds for new ILC parameters • DesignIRs for 2, 14, 20 mr crossing angles • Design/test beam energy spectrometers (with U Oregon and Notre Dame) • Investigate EMI (electro-magnetic interference) and beam rf effects • Design beamlines to accommodate polarimetry, energy spectrometers Crossing Angle Designs SiD IR Hall Layout Final SC Quads (BNL) SLAC DOE Review

  14. ILC-ESA Beam Tests April 24 – May 8, 2006 ~40 participants from 15 institutions in the UK, U.S., Germany and Japan: Birmingham, Cambridge, Daresbury, DESY, Fermilab, KEK, Lancaster, LLNL, Notre Dame, Oxford, Royal Holloway, SLAC, UC Berkeley, UC London, U. of Oregon • Energy spectrometer prototypes • T-474 BPM spectrometer: M. Hildreth (Notre Dame), S. Boogert (Royal Holloway and KEK) are co-PIs • T-475 Synch Stripe spect.: Eric Torrence (U. Oregon) is PI • 2. Collimator wakefield studies • T-480: S. Molloy (SLAC), N. Watson (Birmingham U.) co-PIs • 3. Linac BPM prototype • BPM triplet – C. Adolphsen, G. Bowden, Z. Li • 4. Bunch Length diagnostics for ESA and LCLS • S. Walston (LLNL) and J. Frisch, D. McCormick, M. Ross (SLAC) • 5. EMI Studies • G. Bower (SLAC) + US-Japan collaboration with Y. Sugimoto (KEK) Mike Woods’ Talk in Breakout Session See Mike Wood’s Talkin Breakout Session SLAC DOE Review

  15. Detector Simulation/Reconstruction Group SLAC Sim/Recon Group Ron Cassel Norman Graf* Tony Johnson Jeremy McCormick • Supports SiD, ALCPG, and international simulation effort. Tutorials, Workshops, Snowmass Resource CD • Provides physics simulation and data samples for physics analysis e.g. 1 ab-1 sample of all SM Processes at 500 GeVhttp://www.lcsim.org/datasets/ftp.html • Provides full detector simulation in Geant4. Runtime detector description in XML, making it easy to study design variations. • Provides Java-based reconstruction & analysis framework • Developing Tracking and Calorimeter reconstruction code

  16. Calorimetry drives the SiD Design, and Particle Flow drives the Calorimetry 1 Measure the energy of every particle, not the energy deposited in calorimeter modules. High transverse and longitudinal segmentation is needed to distinguish individual particles. SLAC DOE Review

  17. Starting Detector Comparisons with PFAs Vary B-field • 3.63 GeV 89.3 GeV 63% • -> 38%/sqrt(E) • 3.78 GeV 89.2 GeV 54% • -> 40%/sqrt(E) SiD SS/RPC - 4 T field SiD SS/RPC - 5 T field -> Somewhat worse performance in smaller field SLAC DOE Review

  18. SiD Detector R&D at SLAC SLAC Participants CollaboratorsT. Barklow W. Cooper (FNAL) M. Breidenbach M. Demarteau (FNAL) D. Freytag R. Frey (Oregon) R. Herbst V. Radeka (BNL) J. Jaros N. Sinev (Oregon) D. Su D. Strom (Oregon) T. Nelson +Annecy and UC Davis Major Activities are closely integrated with FNAL, BNL, Oregon, Annecy • Front-end electronics design for Si/W ECAL • Ecal mechanical design • Tracker mechanical design • Si sensor development for tracker • Pattern Recognition Code and Detector Simulation for Tracker • VXD Concept, Simulation, and Performance • Physics Analysis and Detector Benchmarking • Costing Tools SLAC DOE Review

  19. R 1.27 m CAD overview SiD ECAL overview • 20 layers x 2.5 mm thick W • 10 layers x 5 mm thick W • ~ 1mm Si detector gaps • Preserve Tungsten RM eff= 12mm • Highly segmented Si pads 12 mm2 SLAC DOE Review

  20. SLAC/ Annecy Conceptual design W plate ~ 200 Kg Module ~7000 Kg • W plates joined by ‘rods’ • Wafers ‘on’ W • ReadOut chips on wafers • Very aggressive mechanical and electronics integration is needed to preserve the Moliere radius FEA analysis is in progress SLAC DOE Review

  21. SLAC/BNL/Oregon/Davis Wafers and R/O • Single MIP tagging (S/N ~7) • Dynamic range 0.1 – 2500 MIPs • Bump bonded to the detector • Low power <40 mW per wafer with power pulsing, passive cooling • 4 deep buffer for bunch train SLAC DOE Review

  22. KPiX SiD Readout Chip 2 x 32 Prototype #2 now being tested at SLAC. #3 is on the way. Full chip in the fall.Use for ecal and µstrips; adapt for hcal. One cell. Dual range, time measuring, 13 bit, quad buffered 2 x 16 Si Strip See Marty’s talkin Breakout 2x16 Calorimetry Prototype: 2x32 cells: full: 32x32 SLAC DOE Review

  23. SiD Integrated Tracking • Silicon Tracker is fast (1 BX only) • Silicon is robust(No HV trips) • Tracking System VXD Si Main Tracker Ecal SLAC DOE Review

  24. FNAL Mech Design Pixel Vertex Tracker VXT SLAC Conceptual Designand Simulation • 5 layer |cos| < 0.976 • Pattern Recognition ~100%

  25. Promising VXT Technology • “Chronopix” being developed by Oregon/Yale/Sarnoff • Store hit times in Macro Pixelduring bunch train, readout after • Scrap Macro/micro. Miniaturize Macro instead. • MacroPixel design complete; prototype detector design next. • Good opportunity for SLAC involvement SLAC DOE Review

  26. Si Tracker @ SLAC Stand Alone Barrel Tracking Sensor Module Design Microstrip Detector Designand Integration with KPiX Tracking Efficiency vs Pt (GeV/c) See talk by Tim Nelson in Breakout Session SLAC DOE Review

  27. Detector Performance Requirements What are the tradeoffs between detector performance and physics performance? What detector performance is really needed? Processes under study by T. Barklow • Jet Resolution Higgs Mass Error vs Ejet Higgs Self Coupling Error vs Ejet • Tracker Momentum Resolution Higgs Mass Error vs pt/pt2 Ecm Accuracy vs pt/pt2 SUSY Mass Error vs pt/pt2 • Detector Calibration Runs Run at the Z or will radiative Z’s do? These studies benchmark SiD performance. Eventually they will be utilized to compare and optimize SiD Design variations.

  28. What’s Next for SiD@SLAC...? ….ambitious plans! • Ecal KPiX, New Si Sensors, Prototype, Beam Test, Mechanical design • Main Tracker Tracker Si Sensor, Prototype Sensor Modules, Beam test • Vertex Tracker Evaluate Performance, Mechanical Design (with FNAL), Develop Sensor • Reconstruction Code Perfect PFA, Tracking Pat Rec • Benchmarking/Analysis/Design Optimization Detector Performance Requirements, New Physics Analyses, Global Optimization, Subsystem Optimization. SLAC DOE Review

  29. Expanding Effort on SiD Present program is not adequately staffed or funded to realize our ambitious plans, meet the GDE timeline, or secure a leading role for the US community. Initial startup of SLAC/Atlas effort presents challenges for SiD effort. • New SiD Personnel are needed for design and optimizationMechanical engineer, mechanical technician, computer support, postdoctoral researchers, simulation physicist, visitors • New SiD Si Lab Space is needed & tentatively identified KPiX development, Sensor development • Additional SiD M&S is needed to support proof of principle R&D. SLAC is a natural site to lead ILC detector development with our user community. We have much of the needed engineering, construction facilities, computing and simulation infrastructure, and test beams, and can serve as a center for design and analysis activity.

  30. Backup Slides SLAC DOE Review

  31. ILC Detector Requirement for Tracking Goal: pt/pt2 ≤ 5 x 10-5 GeV-110X LEP, and 3X CMS Higgs Tag and Recoil Mass Measurement Recoil Mass (GeV) Recoil Mass (GeV) • Boost Effective Luminosity • Improve Tag Recoil Mass (GeV) Recoil Mass (GeV) SLAC DOE Review

  32. Accounting for Costs Cost by subsystem Cost minimum vs. tracker radius Marty’s Excel Spreadsheet allows study of costs vs detector parameters, includes fixed costs. Need for detector optimization. SLAC DOE Review

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