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Task E Overview

Task E is responsible for the hardware and software of the CDF II intermediate muon system (IMU) and silicon tracking software. Physics activities include SM Higgs searches, Z' searches, jet physics, and searches for new B hadrons. The task's expertise is also applied to muon system alignment and muon identification/tracking for the CMS high-level trigger.

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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) hardware and software and silicon tracking software • Physics activities include: SM Higgs searches, Z’ seaches, Jet physics as prove for proton structure and quark substructure, and searches for new B hadrons. • The Task E experience is applied synergistically to Task T activities on muon system alignment and muon identification/ tracking for the CMS high level trigger +

  2. Task E Group Faculty: Duncan Carlsmith, Matthew Herndon, Lee Pondrom Scientists: James Bellinger, Woo-Hyun Chung, Jennifer Pursley Research Assistants: Yeongdae Shon, Varsha Ramakrishnan, Jason Nett, Ye Li Undergraduate: David Sperka

  3. Intermediate Muon System • Muon identification 1.0 < || < 1.5 • 1728 drift tubes (BMU), 432 scintillation counter (BSU) • Detectors, preamps, amplifiers, TDCs, and trigger electronics all operating smoothly.(Prof D. Carlsmith: W. Chung and UW GSs Y. Shon and V. Ramakrishnan). New triggers(UW GS J. Nett) • Software: low level muon finding(J. Bellinger) and analysis level id(V. Ramakrishnan) • Significant impact on physics • Bs Oscillations(Prof. Herndon) • Evidence for single top • Low and high mass Higgs searches(J. Pursley, J. Nett, Prof. Herndon)

  4. Higgs Physics Prof. Herndon Jen Pursley Prof. Herndon Jason Nett Recent analysis improvements led 30% improved sensitivity Expected Limit 1.9xSM with 2.4fb-1 SM Higgs is within reach. Limits on high mass Higgs this year • Higgs Discovery Group • Led by Prof. Herndon • UW Concentrating on SM Higgs • Low mass • WH  lbb • ZH bb • ZH llbb • High Mass • H  WW  ll • Many analysis improvements under development

  5. Wisconsin CDF Physics • Direct searches for New Physics • Z’  : UW GS Y. Le and Prof. Carlsmith (blessed by the collaboration) • Investigating hint of low mass Z’ seen in electron channel • Jet Physics: QCD and New Physics • Quark substructure: UW GS Y. Shon, Prof. Pondrom adv. (in collaboration review) • Double parton interactions: V.Ramakrishnan, Prof. Carlsmith adv. • B Physics • Discovery of new hadrons B** and b, Pursley (in collaboration review for publication and published respectively) • Bs +-: D. Sperka(published, updated version in collaboration review) • Wisconsin group is pursuing a vigorous physics program in multiple areas of the CDF physics program making use of our physics and technical expertise and the capabilities of the IMU system.

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