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CDF Overview

CDF Overview. Joseph Kroll Penn DOE Site Visit 8 – 9 August 2005. Context of this presentation. Past 4 years CDF II has moved from construction & commissioning  maintaining & analyzing. Penn CDF Group has made major contributions to CDF II & made a major investment in Run II.

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CDF Overview

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  1. CDF Overview Joseph Kroll Penn DOE Site Visit 8 – 9 August 2005

  2. Context of this presentation Past 4 years CDF II has moved from construction & commissioning  maintaining & analyzing Penn CDF Group has made major contributions to CDF II & made a major investment in Run II • The Tevatron is realizing its potential: • Record luminosity (1.4 x 1032) last week • > 1 fb-1 delivered to CDF & DØ • Electron cooling demonstrated & and being used • 4 – 8 fb-1 is feasible We are committed to capitalizing on our investment by getting the key physics out of Run II: This means continuing major contributions to operations and analysis

  3. Our Investment in Run II • Hardware • COT, TOF, Calorimeter calibration electronics • Level 2 trigger upgrade • personnel devoted proposing, designing, constructing, installing, commissioning, maintaining above hardware • Operations • management, trigger, COT tracking, Si alignment, calibrations • Data analysis & Physics • Primary contributions to flagship analyses unique to Run II • top physics, Bs mixing, SUSY searches • Primary authors of 1st PRL (D cross-section) and 1st high pT PRL (top cross-section from dileptons)

  4. Current Personnel Faculty: J. Kroll, N. Lockyer, E. Thomson, H. H. Williams Post-docs: A. Heijboer, A. Kraan, C. Neu, D. Whiteson Graduate Students: K. Hahn, A. Kovalev, T. Rodriguez Y. Tu, D. Usynin, S. Yu Staff: J. Heinrich, P. Keener, W. Kononenko, G. Mayers, M. N. Newcomer, R. Van Berg

  5. Past Personnel Covered by this Proposal Post-docs: D. Ambrose – now at FNAL M. Jones – now an assistant professor at Purdue R. Oldeman – now a lecturer at Liverpool, UK A. Munar – now at Valencia I. Nakamura – now a staff scientist at KEK P. Wittich – now an assistant professor at Cornell Students: C. Chen – now a post-doc at Maryland (BaBar) S. Yu – recently graduated, entertaining several post-doc offers

  6. Contributions to Run IIa: COT • COT electronics • 8 channel ASDQ chip (drift time & charge encoded in width) • 6600 packaged chips tested • marketed to other experiments • ASDQ Motherboards • 1400 Boards total – each with 3 ASDQ chips (1260 required for chamber) • Repeater boards and Buffer boards • All electronics has performed very reliably • less than 0.5% ??? dead channels • thresholds lowered well below specs to maximize efficiency • Operations • management • aging studies • maintenance COT critical to CDF II success. Maintained by small group Penn committed to continuing role here

  7. Contributions to Run IIa: TOF 32K contributed from UPenn • Lead role in approval of this “beyond the baseline” project • TOF electronics • 7 custom printed circuit boards (quantity produced) • HV base (500) • 2 cable connector boards (500 each) • preamp (500) • deCAF (540) • TOMAIN (60) • TOAD (180) • 460 PMT assemblies (Hamamatsu fine-mesh PMT with base, tested) • Operations • management • pager duties • calibrations • simulation Very tight production timescale: Never the less all operating reliably (~1 failure from this list per year) Continue commitment to maintain Exploit for physics analysis

  8. Contributions to Run IIb 20K contributed from UPenn • Trigger Level 2 decision crate upgrade – see talk • responsible for back-end of system including trigger decision • initial leadership from Peter Wittich • Daniel Whiteson (PD) & Kristian Hahn (GS) drove back-end effort • help from Paul Keener (staff) here • Chris Neu (PD) shared responsibility for reCES part of system • required splitting optical signals using active splitters • Replaced alpha based Run IIa system in April 2005 • Duplicate system runs parasitically  allows real time development without using beam time • participating in routine operation (pager responsibilities) • anticipate getting Yanjun Tu (GS) involved here

  9. Contributions to Detector Operations • N. Lockyer: co-head of operations dept. Jun. `99 to Dec. `01 • N. Lockyer: co-spokesperson Jun. ’02 to Jun. `04 • J. Kroll: TOF co-subproject leader (SPL) Jan. `99 to Dec. `00 • M. Jones: TOF SPL Jan. `01 to present • also one 6 month term as operations manager Jul.`02 to Jan.`03 • D. Ambrose: COT SPL Jan. `01 to present • also two 6 month terms as operations manager Aug.`01 to Jul.`02 • P. Wittich: Trigger SPL Aug.`02 to May `04 • prior to that trigger software coordinator from Jun.`02 • A. Heijboer: Silicon alignment Oct. `04 to present • A. Kraan: Calibration coordination Mar. `05 to present

  10. Contributions to Operations • Trigger system • P. Wittich L2 software coordinator & wrote lots of L2 software • monitoring and improvements (Oldeman, Wittich) • On-line beam profile monitoring with SVT – see talk • Chris Neu working with Luciano Ristori (then CDF co-spokesperson) • Silicon alignment – see talk • Aart Heijboer took over from Ray Culbertson (FNAL) in Fall 2004 • Calibration coordination – see talk • Aafke Kraan: new role, crucial for timely data production • Calorimeter calibration electronics • this responsibility now in the hands of FNAL

  11. Leadership in Physics • N. Lockyer: co-spokesperson – 2002 to 2004 • E. Thomson: co-convener top group – 2004 to present • J. Kroll: • co-leader B0 and Bs mixing effort – 2004 to present • co-leader 2003 Tevatron Higgs Sensitivity Study for R. Orbach • M. Jones: co-convener B reco/tag subgroup – 2002 to 2004 • R. Oldeman: co-convener B hadronic subgroup – 2002 to 2004 • Daniel Whiteson: top MC coordinator – 2004 to present • Peter Wittich: co-convener SUSY subgroup – 2004 to present • Joel Heinrich: member CDF statistics committee

  12. top properties major leadership role cross-section using kinematics mass using matrix el. method W Helicity SUSY major leadership role dilepton searches search for sbottom Electroweak WW production Higgs search Higgs Sensitivity Study Wbb 1st signal in track trigger data trigger improvements D cross-sections Bs flavor oscillations major leadership role flavor tagging lifetime resolution studies B fragmentation studies crucial for flavor tagging too b BFs Physics Highlights More details in presentations that follow High pT physics Heavy flavors (b & c)

  13. Publications Primary authors or major contributors to the following: First PRL from Run II First high pT PRL

  14. Results Approved for Public Presentation Primary authors or major contributors to the following: • Higgs Sensitivity Study (joint CDF & DØ result) • L. Babukhadia et al., FERMILAB-PUB-03-2003-E • Top mass using matrix element approach • dileptons and lepton + jet top samples • Search for R Parity Violating Sneutrino Decay • publication in preparation • Limits on sbottom production • 1st limit on Bs flavor oscillations from CDF II • includes results on B hadron flavor identification • Measurement of b Semileptonic branching fraction • publication in preparation

  15. Summary • I will reemphasize our goals for the next funding period • physics • top • B_s mixing • SUSY searches • continued involvement in operations • COT • TOF • L2 • Calibrations • Si alignment • Beam width monitoring • whatever else the experiment needs that we can provide

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