D

1
DØ Detector status
Harry Weerts Michigan State University/Fermilab
2
Detector status July 25
System status Connected Comments
Silicon 100
Fiber tracker 5 (L1 0) Waiting for AFE boards
Preshowers CPS 5 Same as Fiber tracker
FPS 0 Installed waveguides
Calorimeter 100 (L1 45)
Muon Central 100 (L1 100) Scintillators all complete
Muon Forward 100 (L1 100)
FPD 11 ( 55 trigger) First phase
TFW 100 Trigger frame work
Trig L2 0 Problems with L2 Alphas improving
Trig L3 5 (?) Emulate Rate 8 Hz
Rough State of DØ detector on July 25, 2001
Need this at 100 for commissioning
3
W ? e? candidate
Run 125232 Event 183666 Electron candidate
recorded using EM trigger pT 38 GeV
isolationlt0.2 EM fraction 0.97
Layer 1 8 GeV
Layer 2 14 GeV
hot cell
Layer 3 15 GeV
Layer 4 0.3 GeV
Pierre Petroff and Laurent Duflot
4
Jet Events

• Calorimeter Level 1 trigger
• Run124640 event 524035

V. Zutshi Brookhaven
5
K0S ? ??-
A very small fraction of our data
Background sample (same sign pions)
Ariel Schwartzmann, Buenos Aires Sherry
Towers, Stony Brook
Signal sample (opposite sign pions)
6
State of DØ
A lot of progress over the last few months
DØ is taking data Detector has steadily improved
over last few months All detectors are being read
out, some partially Online system works very
well Processing data offline
Good news
BUT
DØ is not complete and all missing elements are
in front end electronics/trigger and DAQ system.
Bad news
Eliminating these shortcomings will take several
months
What are the problems facing us.
7
Detector status progress projection
System status after ? July 25 Nov 10
Silicon 100 100
Fiber tracker 5 (L1 0) R 100 (L1 100) R
Preshowers CPS 5 U 100 U
FPS 0 N 0 (?) N
Calorimeter 100 (L1 45) 100 (L1 100)
ICD 100 100
Muon Central 100 (L1 100) 100
Muon Forward 100 (L1 100) 100
FPD 11 ( 55 trigger) 50 (phase I)
Trig L2 0 gt50
Trig L3 5 gt75
8
D0 Technical Organization Draft, 7/25/01
New
All detector related activities are under one
person ensure cohesive and coherent approach
Goal idea
Oversees all Projects Operations in DØ Directs
the completion of Run 2a detector
Technical manager
9
Some notes and remarks

• Boundaries between Run 2a and 2b are blurred
• Within experiment no more separate Run 2a project

Installation was handled with certain approach
style Believe that this is the correct needed
approach to complete the Run 2a detector
( During installation impossible things were
accomplished.)
TM Kotcher
my opinion
Eliminating these shortcomings will take several
months
10
Summary
Taking data. Progress is excellent and
impressive Good first results BUT Several
critical trigger/DAQ systems incomplete Run II
has started we are late AFE, L2 and L3 are
obvious bottlenecks
Tevatron is slow in starting up ( lum lost is
small)
Addressing these problems in the most effective
way (management changes increased oversight)
Eliminating these shortcomings will take several
months
11
Backup slides
12
--Overall DØ status--
July 25, 2001
Sub-system Installed Instrumented Operational Commissioned Comments
SMT 100 100 90 90 90/80/80
CFT/CPS 100 5 5 5 but AFE proto
FPS 100 0 0 - waveguides
Calorimeter 100 100 95 95 Not timed in yet
L1 Calorimeter 100 45 Trigger (hlt0.8) 0 No readout
ICD 95 60 60 60
Muon PDTs 100 100 86/94 40 All reading out
Muon MDTs 100 100 100 100
Muon Trigger Cntrs 100 100 100 100
FPD 2/18 2/18 2/18 2/18 Trigger cnts 10/18
L0 100 100 100 90 Run I electronics
L1 Muon 100 100 100 100
L2 trigger 0 - In 5-10kHz
L3 trigger Emulators Run _at_ 8 Hz - In 1kHz out 20-50Hz
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The rest of year 2001 start of 2002
Dates Action
July 26 Continue 36 x 36 running With detector as described before.
By August 15 Increase L3 rate from 4 Hz to 100Hz Complete L1 Cal Start bringing up L2 trigger partially
Run until Oct 8 Take data commission Offline software with real data Calibration Alignment
Oct 8 - Nov 10 Install AFE8 boards other completion
November 36x36 stores Commission CFT L1 track trigger
December January 2002 36x36 fine tune stabilize ? stable operation
March 2002 Start stable high rate physics running
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D0 Technical Organization Draft, 6/01/01
News Announcements
Particle Physics Division
Technical ManagerJ. Kotcher
Spokespeople
Project OfficeW. Freeman
OperationsRun Coordinator D. Denisov (starts
July, 01)
Run 2a ProjectM. Tuts, (H. Weerts)
Run 2b Project(J. Kotcher), Prj MgrR.
Partridge, Deputy
Detector Commissioning J. YuM. Begel
(Deputy)Electrical Operations (R.
Hance)Mechanical Operations (R. Rucinski)
Structure under discussion
Front Ends/Trigger/DAQ(under development)
SiliconM. DemarteauDeputy TBA
Mechanical W. Cooper
Detector Subsystems
Sensors
Moving towards goal
Electronics
All final technical decisions are made by
Technical Manager
Production
Testing
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Fermilab Director M. Witherell Associate
Director for Research M. Shaevitz
Physics Advisory Committee
Computing Division
Particle Physics Division
Collaboration
DØ Experiment Department
DØ Computing and Analysis Department
Spokesmen H. Weerts J. Womersley
Institutional Board
Laboratory Project management for Run 2B
Personnel and Funding for operations
Physics Coordinator B. Klima
Software and Computing K.W. Merritt, H. Schellman
Technical Manager J. Kotcher
Run Coordinator Commissioning Electrical
Operations Mechanical Operations
Run 2B Project
Algorithms
Physics Groups
Simulation
ID Groups
Silicon
Infrastructure
Trigger Board Chairs D. Wood, L. Groer
Subdetectors
Trigger, Front End and DAQ
Global Systems and Production
Online
Offline Resources Board Chair TBD
DAQ
Data Access and Databases
Trigger