D0 Level 3 Meeting

1
Level 3 Missing ETPlans for Improvements

• Lee Sawyer

2
Level 3 Missing ET Studies

• Used p13.06.01 version of d0trigsim and l3fCalMEt
• Almost ran out of the box Had to remove
  unpackers/muons from toollist
• Default for offline trigger list CalMEt_PvtxZ
  uses CAL_UNP_NADA
• Default L3TCalMEt.rcp UseCHTRUE
• Runs analyzed
• Used the two runs for p13 certification
  comparisons
• 170246 (p12) and 170247 (p13)
• These are BAD runs based on Jet/Met run list!
• Shift-xy6.41 GeV for 170246, 5.64 GeV for 170247
• Pulled raw files (parts 1 and 4 for each run)
  from SAM
• Ran over 2000 events for each run.
• Used a GOOD run from same period for comparison
• Run 170277
• Shift-xy0.57 GeV
• Will compare results with L3Nada on/off and CH
  on/off
• When L3Nada is on, L3NadaThreshold 3.0001
• L3Nada off gt Changing to CAL_UNP tool instance
• Both CAL_UNP and CAL_UNP_NADA have calib0 (No
  calorimeter non-linearity corrections in this
  study.)
• EtaMax 3.7 in L3TCalMEt.rcp

On hold until SAM problems are fixed!
3
Run 170247 Missing ET
Using CAL_UNP_NADA
Using CAL_UNP

• No, I do not have the labels backwards!
• Problems with NADA differentiating hot and warm
  regions (see below)

4
Run 170247 Other Plots
Using CAL_UNP_NADA
Using CAL_UNP

• Phi of the missing ET shows a spike at 2.3 when
  L3Nada is turned on!

5
Run 170247 Other Plots
Using CAL_UNP_NADA
Using CAL_UNP
Scalar ET
Run I Significance
6
CALanalyze

• Ran calanalyze over the corresponding reco files
• Able to look at CAL info, NADA cells.

Number of hits in Run 170247 vs iphi and ieta
7
Warm vs Hot
lt Warm region in EM
Hot cell in HAD gt
8
NADA Offline
Finds the Warm region, but misses the hot cell?
9
RECO_analyze

• Reco_analyze run over run 170247
• Offline missingET information for comparison

cf. ltmETgt 16.03 GeV w/ L3NADA ltmETgt 8.06 GeV
w/out L3NADA At Level 3
10
NADA Quantities Offline
VETNADA is missingET contribution from NADA cells
Scalar sum of NADA cell energies shows a
significant negative contribution
11
Other Work Ongoing

• Testing new results class for L3TCalMEt and
  L3TJetMEt
• Finish development work on L3TJetMEt
• Assistance would be appreciated
• Mostly need someone to run the tool over
  interesting data sets and test triggers
• Continue tests on L3TCalMEt
• More tests of L3NADA on good/bad runs
• Test calib (non-linearity corrections) and UseCH.