JetMET DQM Status Kenichi Hatakeyama, Anwar Bhatti, Frank Chlebana, Jared Sturdy DQM Meeting...
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Transcript of JetMET DQM Status Kenichi Hatakeyama, Anwar Bhatti, Frank Chlebana, Jared Sturdy DQM Meeting...
JetMET DQM Status
Kenichi Hatakeyama, Anwar Bhatti,
Frank Chlebana, Jared Sturdy
DQM Meeting
November 4th, 2008
November 4, 2008 DQM Meeting 2
JetMET POG Monitoring PlotsJetMET POG Monitoring Plotshttps://cmsweb.cern.ch/dqm/tier-0/
From CRAFT dataFrom CRAFT data
JetMET POG DQM isalready run routinely
November 4, 2008 DQM Meeting 3
JetMET DQM Shift InstructionJetMET DQM Shift Instructionhttps://twiki.cern.ch/twiki/bin/view/CMS/DQMShiftOfflineJetMET
November 4, 2008 DQM Meeting 4
Data Certification for “Jets”Data Certification for “Jets”
For jets we are looking at Several different algorithms (IterativeCone, SISCone,
PFlow, JPT) Regions in the detector (Barrel, EndCap, Forward) High and low jet pt triggers
Quality test compares current histogram with a reference histogram Chi2 or KS test
Several distributions are tested (Pt, eta, phi, constituents, HOverE)
November 4, 2008 DQM Meeting 5
Determining the Quality Flags for “Jets”Determining the Quality Flags for “Jets”
Quality flags for the different jet algorithms determined by comparing histogram to reference
JetMET_Jet_AAA (AAA = IterativeCone, SISCone, PFlow, JPT)
if ( (JetMET_Jet_AAA_Pt_Low_Val > 950 ) && (JetMET_Jet_AAA_Pt_High_Val > 950 ) && (JetMET_Jet_AAA_Eta_Low_Val > 950 ) && (JetMET_Jet_AAA_Eta_High_Val > 950 ) && (JetMET_Jet_AAA_Phi_Low_Val > 950 ) && (JetMET_Jet_AAA_Phi_High_Val > 950 ) && (JetMET_Jet_AAA_Constituents_Low_Val > 950 ) && (JetMET_Jet_AAA_Constituents_High_Val > 950 ) && (JetMET_Jet_AAA_HOverE_Low_Val > 950 ) && (JetMET_Jet_AAA_HOverE_High_Val > 950 ) )
JetMET_Jet_AAA = 1
November 4, 2008 DQM Meeting 6
Data Certificaiton for “MET”Data Certificaiton for “MET”
For MET, we are looking at met (MET from Barrel+Endcap+HF), and metNoHF (MET from Barrel+Endcap only).
Data Certification for MET: Currently fit MEx & MEy distributions to double Gaussians and
check Chi2 and the peak. Chi2 of double Gaussian fits: reduced chi2 <20 for lum section or 200 for
entire run (Need to adjust the criteria based on the statistics) Mean of the fitted Gaussian form: within +/-10 GeV
Looking into METPhi, MET, METsignificance also For these, need to compare with reference histograms (Chi2 or KS test)
Performed for the entire run and also per lumi section. Currently we use “monitoring variable versus lumi section” 2D
histograms, but a long run can exceed the axis range… (see later slides)
November 4, 2008 DQM Meeting 7
DBS information is organized in three layersAble to select subcomponent (HB,HO, HE, HF)
Layer 1 Layer 2 Layer 3 JetMET_Global JetMET_Jet_ICone JetMET_Jet_ICone_Barrel JetMET_Jet_SISCone JetMET_Jet_ICone_EndCap JetMET_Jet_PFlow JetMET_Jet_ICone_Forward JetMET_Jet_JPT JetMET_Jet_SISCone_Barrel ... JetMET_MET JetMET_MET_All JetMET_MET_NoHF
Currently have histograms for ICone, SISCone, and PFlow…
Data Certification OutputsData Certification Outputs
November 4, 2008 DQM Meeting 8
Data Certification Algorithm ImplementationData Certification Algorithm Implementation
Data Certification runs as a standalone cmsRun job Next step: move this into the harvesting job
Using a root Chi2 or KS test to compare current histogram against a reference Reference histograms need to be accessible Looking into the qtest code…
Results are saved in a “Data Certification” folder in the DQM root file
November 4, 2008 DQM Meeting 9
DCS queries which return HV/LV settings for the HCAL • takes several minutes (~3 min) to complete
Example from run 67124
Many channels are stableHBM_HV1_2_08/M1 CH1 HB -1 2 10 1 10/22/08 14:36:12 7516 HBM_HV1_2_08/M1 CH1 HB -1 2 1 1 10/22/08 14:36:12 7516 HBM_HV1_2_08/M1 CH1 HB -1 2 11 1 10/22/08 14:36:12 7516
Some channels are changingHBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 14:37:28 1332 HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 14:37:34 680 HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 14:37:40 380 …HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 14:38:19 32 HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 14:38:25 20 HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 14:38:31 12 HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 14:38:50 4 HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 15:41:39 452 HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 15:41:45 952 HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 15:41:51 1468 …HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 15:42:55 6588 HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 15:43:02 7108 HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 15:43:08 7132 HBP_HV2_1_10/M2 CH1 HB 1 15 5 1 10/22/08 15:43:27 7120
HV starts out low, is lowered, then raised
DCS QueriesDCS Queries
November 4, 2008 DQM Meeting 10
Data CertificationData Certification The JetMET Data Certification is determined entirely
from the results saved in the DQM root file…
Jet Data Certification is reported for the entire run
MET Data Certification is reported for the entire run and also per lumi section
Will use DCS information to identify Luminosity Sections with bad data…
Should be folded into the DPG (HCAL, ECAL) Data Certification results…
November 4, 2008 DQM Meeting 11
MET DQM in CRAFT dataMET DQM in CRAFT data(in following slides…)(in following slides…)
November 4, 2008 DQM Meeting 12
Run 66594Run 66594
MEx (GeV)MEx (GeV) MEy (GeV)MEy (GeV) METPhi (rad)METPhi (rad)
Lum
i Sect
ion
Lum
i Sect
ion
Lum
i Sect
ion
Lum
i Sect
ion
With HFWith HF
Barrel+Endcap OnlyBarrel+Endcap Only
First few lumi sections appear to be problematic.First few lumi sections appear to be problematic.N
um
ber
of
events
Num
ber
of
events
Num
ber
of
events
Num
ber
of
events
November 4, 2008 DQM Meeting 13
Run 66594 cont’dRun 66594 cont’d
Zoom-in view
Problem only in a first few lumi sections
On a lumi section based method, can keep the majority of events
November 4, 2008 DQM Meeting 14
Run 66594 cont’dRun 66594 cont’d Data certification
Looking at Chi2 of double Gaussian fits: reduced chi2 <20 (lum section) or
200 (entire run)
(Need to adjust the criteria based on the statistics) Mean of the fitted Gaussian form: within +-10 GeV
November 4, 2008 DQM Meeting 15
Run 66714Run 66714
MEx (GeV)MEx (GeV) MEy (GeV)MEy (GeV) METPhi (rad)METPhi (rad)
Lum
i Sect
ion
Lum
i Sect
ion
Lum
i Sect
ion
Lum
i Sect
ion
With HFWith HF
Barrel+Endcap OnlyBarrel+Endcap Only
No major problem.No major problem.N
um
ber
of
events
Num
ber
of
events
Num
ber
of
events
Num
ber
of
events
November 4, 2008 DQM Meeting 16
Run 66714 cont’dRun 66714 cont’d
Data certification output
Good run
November 4, 2008 DQM Meeting 17
Run 66746Run 66746
MEx (GeV)MEx (GeV) MEy (GeV)MEy (GeV) METPhi (rad)METPhi (rad)
Lum
i Sect
ion
Lum
i Sect
ion
Lum
i Sect
ion
Lum
i Sect
ion
With HFWith HF
Barrel+Endcap OnlyBarrel+Endcap Only
Noise in HFNoise in HFat phi~0.8at phi~0.8
Check of the mean MEx or MEy will detecot this problem.Check of the mean MEx or MEy will detecot this problem.N
um
ber
of
events
Num
ber
of
events
Num
ber
of
events
Num
ber
of
events
November 4, 2008 DQM Meeting 18
Run 66746 cont’dRun 66746 cont’d
Data certification output
MET without HF mostly OK
November 4, 2008 DQM Meeting 19
Run 67124Run 67124
MEx (GeV)MEx (GeV) MEy (GeV)MEy (GeV) METPhi (rad)METPhi (rad)
Lum
i Sect
ion
Lum
i Sect
ion
Lum
i Sect
ion
Lum
i Sect
ion
With HFWith HF
Barrel+Endcap OnlyBarrel+Endcap Only
Num
ber
of
events
Num
ber
of
events
Num
ber
of
events
Num
ber
of
events
met with/withtou HF seem to suffer from hot tower(s)met with/withtou HF seem to suffer from hot tower(s)
November 4, 2008 DQM Meeting 20
Run 67124 cont’dRun 67124 cont’d
Data certification outputs
Bad Run
November 4, 2008 DQM Meeting 21
Run 68021Run 68021
MEx (GeV)MEx (GeV) MEy (GeV)MEy (GeV) METPhi (rad)METPhi (rad)
Lum
i Sect
ion
Lum
i Sect
ion
Lum
i Sect
ion
Lum
i Sect
ion
With HFWith HF
Barrel+Endcap OnlyBarrel+Endcap Only
Num
ber
of
events
Num
ber
of
events
Num
ber
of
events
Num
ber
of
events
No major problem.No major problem.
November 4, 2008 DQM Meeting 22
Run 68021 cont’dRun 68021 cont’d
Data certification outputs
November 4, 2008 DQM Meeting 23
Summary from MET DQM Plot ScanningSummary from MET DQM Plot Scanning
November 4, 2008 DQM Meeting 24
SummarySummary
Data certification results from the current rather crude algorithm are already interesting!
Need to run updated version of JetMET DQM code This has additional histograms needed for DC Need to wait until CMSSW_2_2_X
Move Data Certification into the “harvesting step” Results will be written to DQM root file…
Need to designate area for reference histograms Used to determine Data Quality flags
Continue algorithm development on DQM output Need easy access to DQM root files…
November 4, 2008 DQM Meeting 25
BackupsBackups
November 4, 2008 DQM Meeting 26
Physics AnalysisPhysics Analysis
People doing an analysis using jets will initially restrict themselves to the central (barrel) well understood region and require a minimum set of working detector components….
Example query to construct dataset:
RunStart, RunStopHB, EBJetMET_Jet_ICone_BarrelTrigger, Tracker, Luminosity
Quality flags should have the required granularity