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Level 3 Missing E T :Plans for Improvements

Level 3 Missing E T :Plans for Improvements. Lee Sawyer. 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

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Level 3 Missing E T :Plans for Improvements

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  1. Level 3 Missing ET:Plans for Improvements Lee Sawyer Lee Sawyer Louisiana Tech University

  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 : UseCH=TRUE • 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-xy=6.41 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-xy=0.57 GeV • Will compare results with L3Nada on/off and CH on/off • When L3Nada is on, L3NadaThreshold = 3.0001 • L3Nada off => Changing to CAL_UNP tool instance • Both CAL_UNP and CAL_UNP_NADA have calib=0 (No calorimeter non-linearity corrections in this study.) • EtaMax = 3.7 in L3TCalMEt.rcp On hold until SAM problems are fixed! Lee Sawyer Louisiana Tech University

  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) Lee Sawyer Louisiana Tech University

  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! Lee Sawyer Louisiana Tech University

  5. Run 170247: Other Plots Using CAL_UNP_NADA Using CAL_UNP Scalar ET Run I Significance Lee Sawyer Louisiana Tech University

  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 Lee Sawyer Louisiana Tech University

  7. Warm vs Hot <= Warm region in EM Hot cell in HAD => Lee Sawyer Louisiana Tech University

  8. NADA Offline Finds the Warm region, but misses the hot cell? Lee Sawyer Louisiana Tech University

  9. RECO_analyze • Reco_analyze run over run 170247 • Offline missingET information for comparison cf. <mET>= 16.03 GeV w/ L3NADA <mET>= 8.06 GeV w/out L3NADA At Level 3 Lee Sawyer Louisiana Tech University

  10. NADA Quantities Offline VETNADA is missingET contribution from NADA cells Scalar sum of NADA cell energies shows a significant negative contribution Lee Sawyer Louisiana Tech University

  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. Lee Sawyer Louisiana Tech University

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