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Preparazione analisi Global Runs
Esperienza dal “November Global Run” (“GREN”): ~ 2 settimane di data taking [ => running conditions (non sempre stabili con : DT (whole YB0), RPC (baseline: YB0/+1/+2 Sect4/5/10/11), CSC (YE+2, ME2+ME3) HCAL, ECAL
DTTF,CSCF trigger & readout ]
Preparazione/schedula prossimi Global runs: - ~fine Febbraio (3 wheels? Alcuni moduli del Tracker?) - Aprile (full Tracker?) - Maggio: CMS chiuso, 4 weeks data taking, B on
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Next Global Runs Tentative schedule
(Acosta/Camporesi, Dec.CMSweek)
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“GREN” ~20 M triggers very useful for - syncronization, calibration, alignment - reconstruction optimization: local/global - trigger` studies - correlation between different detectors
In generale, e’ stata una ottima “palestra”per le DT
Alcuni esempi…
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Synchronization: BX id for HH triggersTriggering Sectors: 3,4,5 & 9, 10,11
Sector 11
Sector 10
Sector 3
Sector 4 Sector 5
Sector 9
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Prompt-Offline time calibration (DT+RPC+HCAL triggers)
-MB1-MB2-MB3-MB4
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Prompt- Local Reconstruction checks:Hit residuals (dominated by uncertainty due to muon time of arrival within the BX window):
Run30625
-MB1-MB2-MB3-MB4
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DT in RPC-triggered Events:[ Run 30333 ;14804 RPC Triggers in Sectors 9,10,11 & 3)
Trigger checks: DT vs RPC
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Correlation between DTTF & TDC data
No bending angle in MB3
Track angleTrack position
Tri
gg
er p
osi
tio
n MB1
MB2
MB3
MB4
position plot shiftedfor MB2 (understood)
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Global reconstruction Multiplicity of associated hits to global tracks (linking 2 or more stations):
Run 30625
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Global reconstruction
Run 30514, ~ 107,000 triggers, ~45’ data taking, ~ 40 Hz
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Extrapolations to calos
Run 30514
~20% (~8 Hz)
~40%
Extrapolation used in HLT streams
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DT↔ HCAL correlations
“Analysis of HCAL-mip triggers using DT tracks “, P.De Barbaro et al.
Run 30205,8,000 Hcal mip triggers
HCAL Phi tower index HCAL Eta tower index
Usage of DT info from other detectors
DT
Eta
tow
er p
redi
ctio
n
DT
Phi
tow
er p
redi
ctio
n
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GREx- sw documentation
….
https: //twiki.cern.ch/twiki/bin/view/CMS/DTanalysisGR
GREx documentation (sw, config files, db info…) pages will be regularly linked from the general DT-DPG twiki: https: //twiki.cern.ch/twiki/bin/view/CMS/MuonDPGDT
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Dati: trasferiti e registrati a Legnaro
promptCalib +reco checks here
Output to CMSOrcoff (in anon-authomatizedway)
Prompt “official” reco@ CAF then Reco, DTEcal/DTHcal
streams ect.. to others T1/T2 tiers
~10 h latency
Dati analizzabili dal cluster lxcmssrvN (N=4,6) di Padova:‘working example’ su : /raid3/share/GRENanalysis/DTAnalyzer_GREN_YB0_Frontier_LNL.cfg
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Preparazione Global Runs futuri
- Utilizzo dati di allineamento (survey + allineamenti ‘interni’ alle camere)
tests sui dati gia’ esistenti del GREN inserimento in DB ufficiale letto da CMSSW (analogamente a quanto gia’ fatto per i test pulse di calibrazione temporale)
- Studio sui dati esistenti delle estrapolazioni al tracker (rates, possibili selezioni di triggers); studio delle estrapolazioni ‘sopra-sotto’;
- Essere pronti a “inglobare” i dati del Tracker nell’ analisi contatto/collaborazione col gruppo di ricostruzione del Tracker (Patrizia?/ Boris? / altri…?)
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Alignment checks on GREN data
Using data producedfrom Santander Group(P.Martinez et al.)From commissioning &Quality Control Check data
http: //cmsdoc.cern.ch/cms/MUON/alignment/DTinternal/main.html
[ YB0 Sectors: 3, 9, 10 & 11; not all chambers available at moment ]
Some **very** preliminaryResults (Alicia, U.G.)
(next slides)
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“Internal Alignment”:
Nominal positionUsing alignment DB
MB2 MB1MB4 MB3
MB4: no correction available
GREN Run 30625
YB0, Sect 3
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Internal alignment
YB0, Sect 9
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Internal alignment
YB0, Sect 10
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Internal alignment
YB0, Sect 11
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Checks of survey data: alignm.between chambers
- Observed relative mis-alignments between chambers w.r.t. nominal geometry
-Correlate with survey measurements (to be done)
- Insert data in DB; needed for correct trigger DTTF behaviour as soon as we want to implement pointing LUT’s (e.g. to Tracker) for next Global Runs
(next slides)
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Alignment between chambers
YB0, all sectors ( GREN Run 30625) :
Extrapolations:
MB1 MB2MB1 MB3MB1 MB4MB2 MB1
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Alignment : YB0 Sect 3,4 & 5
Extrapolations:
MB1 MB2MB1 MB3MB1 MB4MB2 MB1
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Alignment : YB0 Sect 9, 10 & 11
Extrapolations:
MB1 MB2MB1 MB3MB1 MB4MB2 MB1
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Confronto dati -MC
Muon spectra & mu+/mu- ratio
Ripetere le analisi di MTCC (su tutto il detector!)