Introduction to the Workshop

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Introduction to the Workshop

• John Womersley
• Fermilab

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General News

• New Office Building at DØ
• single story open plan building south of the
  south parking lot
• some extra parking will be provided
• Fermilab is going out for bid in 2 or 3 weeks
• 200k extra from DOE size of building 80 ? 80
  ? 80 ? 100
• accommodate 65-80 people
• completion December?
• we plan to include a new videoconference room to
  replace the ninth circle (which will be used for
  offices)
• Interim space
• 15 seats available at the new muon lab (near
  SiDet)
• nice space a real building with windows,
  kitchen, etc.
• any groups interested in moving please volunteer

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Shifts

• Shift coordinator task split into
• task identification Bill Freeman
• task assignment Jae Yu
• book keeping TBA
• Reminder everyone on the masthead will have to
  carry out ten shifts before March 1, or show good
  reason not to
• shifts elsewhere (SiDet)
• geography/inability to travel
• other service work
• Spokesmen will determine whether this is good
  reason
• Please contact Jae if you would like to get
  started!
• There is also a need for 4-6 more silicon shift
  people
• contact Phil Gutierrez and/or Cecilia Gerber

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DOE Lehman Review

• The final Lehman review of the DØ Upgrade was
  held June 6-7
• there will be a half-day mini-review in November
  to close out the project
• Focused on Silicon, Installation, and
  Fallbacks/Descoping
• In general it went OK, though the committee
  criticized us for our willingness to use schedule
  contingency rather than descope the silicon
  detector. The committee also seemed to be
  confused about whether we would need to install
  half of the silicon after March 1.
• For the record
• The north half of SMT is due at DAB on November
  1, but can still be installed up to January or
  February 2001.
• We think it is very unlikely to be delayed more
  than this, and we are not planning on starting
  the run with less than the full SMT
• We have a set of descoping trigger milestones
  agreed with the lab and we will continue to
  follow that plan

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Decision Triggers
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Run I analysis

• 84 papers published, 3 accepted, 6 submitted as
  of 6/17/00
• No Run I meetings at this workshop
• (Jianming is organizing a working meeting
  Wednesday evening)

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WELCOME TO DEKALB, KIDS!

• But, we did not come here to watch the corn grow
  . . .

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The next year
DØ workshop 2001
NIU
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Installation
Collider Data
Cosmic Ray Data

• Commissioning does not stop when collisions begin
• We need to start to understand how to use the
  first few months of data taking with the goal of
  getting the best physics out in due course
• not (necessarily) the fastest route to slick
  plots in summer 2001

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Physics Groups

• Convenors appointed two weeks ago
• CKM Rick Jesik and Hal Evans
• New Phenomena Sharon Hagopian and Gustaaf
  Brooijmans
• QCD Iain Bertram and Marek Zielinski
• Top/Higgs Boaz Klima and Meenakshi Narain
• WZ Armand Zylberstejn and Tom Diehl
• First meetings of the groups at this workshop
  BUT
• meetings are in parallel, which makes it hard for
  people to attend more than one
• groups must not parcel out all the plum jobs or
  sexiest analysis topics this week
• groups must be open, inclusive, and play a
  coordinating role in physics analysis

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Physics group marching orders

• The focus during this workshop will be on
  commissioning, monitoring, calibration,
  alignment, performance of
• Detector
• Online
• Trigger
• Offline reconstruction
• Object id
• Simulation (fast and slow)
• Analysis
• To this end, we would like each physics group
  this week to pick two well-defined physics
  topics. These topics should
• be accessible with the first 100-200 pb-1 of
  data, and
• should be chosen to exercise as much of the
  experiment's infrastructure as possible.
• Follow the two chosen physics topics from
  beginning to end, i.e. from detector to ntuples.

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Examples of questions to be answered

• What physics objects will be involved in the
  analysis?
• Which detectors can be used to identify these
  objects?
• How will these detectors be commissioned?
  Monitored? Calibrated? Aligned?
• What are the signal triggers? Background
  triggers? Monitor triggers?
• How will these triggers be commissioned?
  Monitored? Calibrated? Simulated?
• What are the rates of these triggers? Rejections?
  Efficiencies?
• How will these numbers be predicted? Measured?
• How will the reconstruction algorithms for these
  objects be optimized?
• How will the tracking / vertexing reconstruction
  be optimized for each of the objects?
• How will the performance (efficiency, fake rate,
  resolution) be measured?
• How will the objects be calibrated? Simulated?
• How will the efficiencies and rejections of the
  analysis be measured?
• How will we perform these analyses in a timely
  manner?

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• These questions
• should be answered during the workshop
• in conjunction with the
• ID groups
• algorithms groups
• detector hardware groups
• trigger group, trigger simulation group and
  triggermeister
• The workshop agenda is structured to this end
• use our physics goals to stimulate discussion in
  all the other meetings
• involve people from all subsystems of both
  hardware and software in the physics
• Summarize on Friday

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Run 2b

• DØ sent a document to the PAC (June 5) listing
  options
• available on the web
• Spokesmen met with Mike Witherell (June 8)
• Run 2b is the highest priority (but)
• 15 ? 5 fb-1
• reaffirmed that a minimal upgrade is desired
  (cheaper faster)
• imagines BTeV run would not start until 2007
• The next 12 months must also see our plans for
  Run 2b firmed up and the necessary RD started
• Hence meetings at this workshop

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