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Task E Overview

Task E Overview. The Task E group is responsible for the CDF II intermediate muon system (IMU) and studies W and Z production, H=>WW, B mesons, contact interactions, and QCD. The group is also active in commissioning the CMS Endcap Muon laser alignment system at CERN. Wisconsin Task E Group.

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Task E Overview

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  1. Task E Overview The Task E group is responsible for the CDF II intermediate muon system (IMU) and studies W and Z production, H=>WW, B mesons, contact interactions, and QCD. The group is also active in commissioning the CMS Endcap Muon laser alignment system at CERN. Task E, May 2007

  2. Wisconsin Task E Group Faculty: Duncan Carlsmith, Matthew Herndon, Lee Pondrom Scientists: James Bellinger, Woo-Hyun Chung, Jennifer Pursley** Research Assistants: Shan-Huei Chuang (graduated 07) ,Yeongdae Shon, Varsha Ramakrishnan*, Jeff Klukas*, Jason Nett*, Ye Li* • Joined 2007 • ** July 07 Task E, May 2007

  3. Technical Progress Overview • Intermediate Muon System Status • CDF Detector Operations activity • CMS Alignment Carlsmith • Accelerator performance • Quark substructure Pondrom • B-physics at CDF • Bs mixing and Bs=> mm • Forward tracking and IMU • Higgs physics Herndon Task E, May 2007

  4. Intermediate Muon System • 1728 drift tubes (BMU), 432 scintillation counter (BSU) Detectors, preamps, amplifiers, TDCs, and trigger electronics all operate smoothly. Task E, May 2007

  5. IMU Operation The IMU system has operated efficiently throughout Run II with >99% of channels live. Our Wisconsin presence at Fermilab, monitoring, and rapid response are critical to maintenance. • Study of counter efficiency with Z=>mu,mu Eff=95% Robert Handler Task E, May 2007

  6. Reconstruction baseline BMU Stub and Intermediate Muon Identification efficiencies are baselined for use in top and b physics analyses. Sunny Chuang, Varsha Ramakrishnan Task E, May 2007

  7. W physics with BMU The transverse mass and asymmetry in W=> mu,nu events triggered by the BMU system illustrate excellent performance. Woo-Hyun Chung Task E, May 2007

  8. Group Service Work The WI group contributes to CDF beyond our IMU responsibility. • Woo-Hyun Chung (NAL part-time)- IMU expert (pager), online monitor (YMON), offline monitoring, data production and analysis, consumer operator • James Bellinger - software maintenance and computer system manager, consumer operator, SVTMON author • Duncan Carlsmith, Lee Pondrom, Matt Herndon - scientific coordinators (all have 2007 shifts). God parenting. Matt served at b-group co-convener and is now co-convening a new Higgs group. Task E, May 2007

  9. Research Assistant Contributions Students play an active role in hardware support and data analysis. • Sunny Chuang, NAL resident, IMU pager, former ACE, H=>WW (best limit on heavy Higgs, see talk by Herndon), graduated Dec. 2006, advisor Carlsmith • Ye Li, consumer operator spring 07, ACE (June-Aug 07) , high mass di-muon resonances, advisor Carlsmith • Jeffrey Klukas, summer 2006 CMS alignment at CERN, spring 2007 CMS laser alignment studies, advisor Carlsmith • Jason Nett, forward tracking studies, Higgs trigger studies, advisor Herndon Task E, May 2007

  10. Research Assistants (continued) • Varsha Ramakrishnan, NAL resident, CDF ACE summer 06, IMU pager, multiple parton interactions, passed prelim June 06 , advisor Carlsmith • Youngdae Shon, NAL part-time, CDF Muon HV expert on call (pager), HVMon author, Quark substructure, graduating 2007, advisor Pondrom Varsha Ramkrishnan and Ye Li have volunteered to help the accelerator division with quad roll measurements during the August shutdown. Task E, May 2007

  11. Research directions Sunny Chuang graduated in Dec 2006, completing a thesis of a search for the standard model Higgs boson decaying to W+W- in dilepton plus MET data. She accepted a postdoctoral position at Rutgers. Varsha Ramakrishnan is studying a variety of QCD jet algorithms and their application to identification of multiparton interactions. Ye Li is interested in extending the CDF search for a Z’ decaying to dielectrons to include the dimuon channel with combined mass and forward-backward asymmetry and the extended Run II data set. Task E, May 2007

  12. Computing Progress in making UW-Madison computing resources available to CDF for simulations. Initial attempt in 2006 stalled by security issue. Just recently use of the farm here for CDF has resumed. Task E, May 2007

  13. CMS Endcap Muon Alignment Wisconsin assumed significant responsibility in 2005-6 for the CMS Endcap Alignment System. Task E people active in CMS are Professor Carlsmith, Scientist James Bellinger, and Research Assistant Jeffrey Klukas. Under Task T, Scientist Richard Loveless and PSL engineering team played a major role in development of the system. Task E, May 2007

  14. CMS Endcap Alignment System A network of lasers and optical sensors provided by the Endcap Muon Group comprises an alignment matrix for CMS. The EMU alignment system includes: - Straight Line Monitors (SLM) - Transfer Lines (TL) - Link Monitors (LM) - Radial (R) Monitors - Proximity (Z) Monitors - Temperature (T) Monitors Goal is alignment of CSCs with about 100 micron resolution. Task E, May 2007

  15. Installation essentially complete Ref. DCOPS Crosshair Laser Z-sensors Z-tube Back Chamber Clinometer Chamber DCOPS’s Mounting Tower Transfer Plate Transfer Line DCOPS R-sensor ME+2 Task E, May 2007 Photo Credit: Samir Guragain, Fl. Tech

  16. DAQ Electronics DAQ crate Developed and deployed by Fermilab with help from UCLA and St Petersburg. LV Power Supply Task E, May 2007

  17. CSC data Optical & analog sensor rawdata Geometry of Alignment system COCOA IN COCOA: Alignment fits (in CMSSW framework) COCOA OUT Offline reco Muon Trigger HLT, L1 POOL-ORA object (Excel to ascii toPOOL-ORA) POOL-ORA object POOL-ORA object (directly or via ascii) ascii & XML files Event data wrapped in Root-tuple Optical & analog sensor response calibration data Alignment AnalysisData Structure & Flow Ultimate fitting will be a global effort spanning endcap, link, barrel alignment. CSC “Alignment object” contains chamber offsets …Δxi Δyi Δzi Δαi Δβi Δγi... Object Coordinate Measurements (CMM) & Survey data MUON TRACKS Task E, May 2007

  18. Task E contributions ‘05-’06 • Developed sensor/laser test bench to study background light, reflected light, saturation effects • Authored DAQ software for DCOPS/SLM readout, spectrum fitting, database storage • Contributed to installation/commissioning at CERN • Collected and analyzed data for instrumented endcap during magnet test Fall 06 • After system review in Oct ‘06, assumed management responsibility for Alignment Task Force and initiated plans and organization. Task E, May 2007

  19. DaqMonitor Server for DCOPS readout Readout program delivered in time for MTCC test. Continuing development to increase speed, rationalize data format and use of databases, user interface, monitoring. hep.wisc.edu/~jnb James Bellinger Task E, May 2007

  20. DCOPS Data Each DCOPS provides data from four CCDs (up,down, left, right). The readout program first collects and stores the ambient background light signal. The background subtracted data are fit to a Gaussian plus polynomial. Task E, May 2007

  21. Sensor/Algorithm Studies Test bench study in Madison: 10 m path from laser to DCOPS mounted on translation stage. Fit peaks in CCD1 and CCD3 with operating algorithm, plot peak position versus translation distance to study linearity, dynamic range, resolution. Resolution ~ 2 pixels Jeff Klukas Task E, May 2007

  22. MTCC Data analysis In 2006, CMS was preassembled on the surface and the magnet energized for the first time. One endcap was instrumented with lasers, optical sensors and analog sensors. We observed deflection up to ~18 mm as predicted by crude finite element model. The endcap steel becomes a cone, scalloped somewhat as a result of discrete standoff posts and the base support structure. Task E, May 2007

  23. SLM MTCC sensor results Typical plot of mean peak position (pixels) versus magnetic field (0-4 tesla) in 10 DCOPS along an SLM. The laser originates at the lower right. The curves are quadratic fits to deviation vs B. Task E, May 2007 Robert Handler

  24. SLM Synthesis Comparison of DCOPS to photogrammetry for CSC z-coordinate. Jumps associated with shims. CCD2=+ CCD4=* PG=o Fit to DCOPS sensor data for a radial SLM with lasers from both ends incompletely overlapped agrees with photogrammetry at submm level. (Jim Bellinger) Task E, May 2007

  25. Laser adjustment for transfer lines Laser beam tips outside DCOPS aperature in r-coordinate. Testing at NAL piezomotor actuated 2-d angle adjustment system. Model 8807 The compact Picomotor actuator housing adds only 0.75" (19.1 mm) to the overall thickness of these mounts. The angular resolution of these mounts is 0.7 µrad. Special versions of the Picomotor including vacuum compatible, UV compatible, non-magnetic, and tiny (0.5")—allow it to be used in special environments. As adapted for laser mount Task E, May 2007

  26. Stability 30 days of MTCC 2 DCOPS data. Each plot shows peak fit mean and sigma (pixels) vs time Vertical scales plot dependent. Need to understand odd ball fits. (Two lasers on at the same time?) (Robert Handler) Task E, May 2007

  27. SHIM up SHIM down COCOA Model one SLM ME+2 SLM DCOPS Differential from nominal straight due to shims: Ref ME2-2 Outer ME2-2 Inner ME2-1 Outer ME2-1 Inner 0.5mm (up) 0mm -4mm (down) -5mm (down) -8mm(down) Development and testing of the software required to covert sensor data. First step taken to to provide fits to data from one SLM SLM SLM (Marcus Hohlmann) Task E, May 2007 From Gyongyi Baksay’s analysis note

  28. Status Substantial progress has been made in installation and commissioning of the CMS Endcap Muon Alignment system lasers, sensors, readout system. Our group is responsible for continued development of the DAQ for the DCOPS sensors and task management. At present, one endcap is underground - instrumented but difficult to work with. The other endcap is on the surface and installation of lasers and sensors has just been completed. Task E, May 2007

  29. Outlook The next step is merger of Encap data with data from the Link and Barrel systems and development and demonstration of the grand fit (COCOA) software. This job requires coordination with barrel and link alignment system groups in Europe and also database and tracking software groups. We request support for a post doctoral fellow to assist with this aspect of the project. Task E, May 2007

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