Proposals and Plans for Run II b

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Proposals and Plans forRun II b

• Michael Schmidt
• 21 September 2000

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Definition of Run II b

• Run II a begins March 2001 and ends when we have
  collected approximately 2 inverse fb of data.
• Run II b consists of the data we can collect
  prior to when LHC experiments take over
• Laboratory guidance
• Plan for 15 inverse fb to be delivered to CDF
  (and D0) in the interval 2001 - 2007
• Plan for any required upgrades to be installed in
  one shutdown of 6 months duration to occur
  sometime in 2003 - 2004
• Required upgrades are those necessary in order to
  maintain Run II a capabilities into Run II b
• Expect funding to be limited e.g. 2.5M for
  silicon replacement including contingency

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Request from the Laboratory

• Define the scope of the required upgrades very
  soon
• These plans should require limited RD with
  realistic goals, and minimize the time needed
  for installation and commissioning
• Present our plans at the Fall PAC meeting
  (November 3-5)
• Participate in the evaluation of the demand for
  and available resources of the SiDet facility
  over the next several years
• Anticipate that careful planning and oversight of
  the detector upgrade projects, in close
  coordination with accelerator upgrade
  projects will be essential for success

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Run 2b Committee

• Members
• Gerry Bauer Takashi Ohsugi
• Giorgio Chiarelli Luciano Ristori
• Frank Chlebana Michael Schmidt (Chair)
• Henry Frisch Jeff Spalding
• Mike Lindgren Avi Yagil
• Pat Lukens
• Charge Review proposals for replacement of
  radiation damaged silicon detectors and other
  necessary upgrades
• Provide the recommendations to the Spokespeople
  and the collaboration on action for these
  proposals, establishing the physics benefits,
  cost and schedule, and relative priorities for
  these proposals

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Run 2b Proposal Timeline

• July 21, 2000 Request from Laboratory
• August 12, 2000 Formation of Run 2b committee
• Proposals for silicon replacement
• September 1 First Draft
• September 30 Proposal with options
• Proposals for other upgrades
• September 15 First Draft or Expression of
  Interest
• November 15 Proposal
• October 2 Committee status report
• November 3-5 Fall PAC meeting
• Spring 2001 Written report with overall
  recommendations
• April 20-22 Spring PAC meeting

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Reasons for Attention to Run 2b Upgrades NOW

• The inner layers of silicon will be compromised
  after several inverse fb of dosage (see Joes
  talk)
• What IF the Higgs is actually just around the
  corner ??
• Best studies Ive seen suggest that a 5 sigma
  discovery requires about 5 inverse fb for M100
  GeV, 10 at 110 GeV, and 23 at 130 GeV
• If we havent learned by now that even the
  simplest thing takes a lot longer than one would
  hope, we are simply not trainable
• We need to influence the laboratories priorities
• When DO we get go to 132 nsec operation?
• How do we get at least 15 inverse fb if NUMI,
  KTEV and BTEV are also coming online in the Run
  2b period?

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Already Under Review

• First Drafts (one document)
• Silicon replacement options J. Incandela co.
• Pixel option for Layer 00 W. Wester co.
• Expressions of Interest
• Replacement for muon scintillators (CSP, CSX) G.
  Pauletta co.
• RPCs
• Replacement for central preradiator detector
  (CPR) J. Huston co.
• WLS fibers in MINOS extruded scintillator
• Projective COT K. Pitts co.
• Deadening the sense wires of inner layers at high
  z (large eta)
• Track Trigger Upgrade K. Pitts co.
• Track triplets and inclusion of stereo
  information

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Some Key Issues

• Silicon
• Understand the bracket of the survival range for
  the silicon layers
• Provide the laboratory with a clear message with
  regard to the issue of replacing the SVX3 chip
  with a radiation hard version or substitute
• Integrated tracking plan
• Pattern recognition and reconstruction issues
• How many two sided layers (not double sided)
• Pixels
• Triggering issues (e.g. continued benefit from
  SVT)
• Avoiding the pitfalls of a piecemeal approach to
  the upgrades

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More Issues

• Making sure the upgrades are physics driven
• What are the physics topics to push for in Run II
  b?
• Get it down in one place -- a micro TDR ?
• Overall capabilities (anticipated limitations?)
  of trigger and DAQ systems
• This is one of the (many) places where we are
  expecting to learn from the commissioning run
  and lot more once Run II a starts
• S. Vejcik co. have expressed an interest in
  this broad set of issues
• So many more ...

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Committee Plan

• Evaluate information in hand and iterate
• Formulate our recommendations as best we can in
  the context of an overall upgrade strategy
  driven by the physics
• Seek and enlist help from the collaboration
• Find a way to reach our goal and avoid
  having this icon represent CDFs efforts