P5 recommendation on Tevatron running
Report of June 8 meeting
FNAL
Charges
• Should the Tevatron run through the end of FY09 as currently planned?
• What are the factors and considerations which might lead to running beyond FY09?
Run through FY09?
• Will the accelerator deliver interesting level of integrated luminosity?
• Can the detectors handle the luminosity?
• Do the collaborations have the people to operate the detectors and analyze the data?
Subject of June 8 meeting
Running beyond FY09
• What is present reach and prospect for new discoveries? Trigger issues Endgame strategy
• Battling the sqrt N barrier--will a few more fb-1 matter?
Running beyond FY09
• What is present reach and prospect for new discoveries? Trigger issues Endgame strategy
• Battling the sqrt N barrier--will a few more fb-1 matter?
Might know more after analyses for Summer conferences
Meet again in September to consider
Accelerator projections
Close to presentperformance
Driving indicators• 25 mA/hr stacking• > 100 store hours per week
D0 detector performance
• Basically running well, producing nice results
• Remaining issues for 09: Silicon radiation damage Fiber tracker occupancy
Silicon tracker
Good to go for 09
Fiber tracker
Beginningof store
More typical
CDF Detector
• Running well, producing nice results
• Issues Inner silicon radiation damage Intermediate silicon cooling problem
Silicon radiation
Integrated Luminosity (fb–1)
Dep
letio
n V
olta
ge (
V)
Central Prediction
+1σ Prediction
–1σ Prediction
100
200
300
00 2 4 6 8
maximum bias voltage
Bias Scan Data
Model: S. Worm, Lifetime of the CDF Run II Silicon, VERTEX 2003
SVX Layer 0
Good to go through 09
ISL cooling
good badhole
Port card cooling ring Manifold
Cooling Pipes
Repair in Aug with“reverse angioplasty”
D0 people power 1--needs
actuals
D0 people power 2- available
184 - 124 = 60
or
CDF people power 1--needs
CY 07 CY 09
Detector Ops 56 51
Offline 26 20
Algorithms 32 21
Management 10 10
Total for Ops 124 102
* FTE’s
CDF people power 2--available
CY 07 CY 09
Service Needs 124 102
Resources Available
392 236
Resources for Physics 392 – 124 =
268 FTE134 FTE
CDF people power 3--expertise
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10Pager
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25
ASD andCalibrations
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Burkett
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Burkett
15
Stage0/Monitoring
Morris
Binkley
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25Low Voltage
Aseet
Mukherjee
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50SPL
BobWagner
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50SPL
COT
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Committed Likely Unknown
Findings summary
• Accelerator running well and will likely deliver 6-7 fb-1 by end of FY09
• CDF and D0 detectors running well, some issues for 09 but no show-stoppers
• CDF resources matched to needs through FY09
• Concerns about D0 people power in FY09
• Examine case for running beyond 09 at next P5 meeting (likely end of September)
Recommendations summary
• Tevatron should run through end of FY09
• Lab should work with D0 to augment human resources Visitors program is highly leveraged and cost-
effective Additional Applications Physicists?