EW analisi in Lecce1 Situazione di Lecce G. Cataldi, G. Chiodini, R. Perrino e S. Spagnolo 26-06-2009.

Presentazione sul tema: "EW analisi in Lecce1 Situazione di Lecce G. Cataldi, G. Chiodini, R. Perrino e S. Spagnolo 26-06-2009."— Transcript della presentazione:

1 EW analisi in Lecce1 Situazione di Lecce G. Cataldi, G. Chiodini, R. Perrino e S. Spagnolo 26-06-2009

2 EW analisi in Lecce2 Sommario Interesse e start-up a Lecce Documentazione Elementi dellanalisi Primi esercizi –MuonInSituPerformance –ZtoTwoMuons Short term goals

3 EW analisi in Lecce3 Interesse vs start-up a Lecce Interesse a questa analisi e stato espresso da noi 4 in ATLAS Lecce Gli impegni esistenti e futuri scenari potrebbero rallentare leffettivo impegno di ognuno di noi nello start-up. E importante chiarire lo start-up e le forze in campo in maniera conservativa per evitare eccessive aspettative. Tra Luglio e Ottobre possiamo parlare al piu di 1 FTE complessivo da Lecce Man mano che il lavoro nostro diventera visibile e concreto limpegno dovrebbe crescere e qualche studente aggiungersi. Le aspettative devono contare per ora solo su un FTE

4 EW analisi in Lecce4 Documentazione Papers: ATLAS CSC note: Standard model – EW boson cross-section measurements CDF: arXiv:hep-ex/0508029 6 Nov 2007: Measurements of Inclusive W e Z cross section in ppbar collisions at sqrt(s)=1.96 TeV Twiki pages: https://twiki.cern.ch/twiki/bin/view/AtlasProtected/SMWZSignatures +ZToTwoElectronsZToTwoElectrons +ZToTwoMuonsZToTwoMuons +ZToTwoTausZToTwoTaus +WZRunTimeWZRunTime Tutorial atlas analisi: https://twiki.cern.ch/twiki/bin/view/Atlas/RegularComputingTutorial

5 EW analisi in Lecce5 Elementi dell analisi: misura Lo scopo e misurare la sezione durto W/Z EVENTI TOTALI EVENTI DI BACKGROUND Luminosita Accettanza geometrica e cinematica del rivelatore e dei tagli Efficienza rivelatore e algoritmi ricostruzione allinterno dellaccettanza

6 EW analisi in Lecce6 Elementi dell analisi: errori … con relativo errore statistico. … e sistematico (forse con WZruntime)

7 EW analisi in Lecce7 Elementi dell analisi: ZtoTwoMuons Z2mPreselectionTool Z2mPtCheckTool Z2mLeptonIsolationTool Z2mTruthAnalysisTool MuonPerformanceTool TriggerAnalysisTool EfficiencyAccessTool QUale e il flow diagram? Cosa manca? Quale parte va fatta fuori dalla benchmarck analisi? Cioe quale parte va fatta con root macro compilate? Oppure e tutto ATHENA fino al fit degli istogrammi? N-B A=numero dato L???

8 EW analisi in Lecce8 MuonInsituPerformance-preliminary exercise(0) The aim is just to get familiar with the code. So this is just a trivial logbook page. Starting point is the TwikiPage: https://twiki.cern.ch/twiki/bin/view/AtlasProtected/MuonInsituPerformance. setup using –Release version AtlasOffline-15.2.0. It did not work out-of-the box. cmt co PhysicsAnalysis/AnalysisCommon/InsituPerformance/MuonPerformance cmt co PhysicsAnalysis/AnalysisCommon/InsituPerformance/InsituRepresentation Trivial mods in InsituPerformance/MuonPerformance: #include TrigDecisionEvent/TrigDecision.h Substitute with #include TrigDecision/TrigDecision.h –Download from the GRID of two input files for test: mc08.106051.PythiaZmumu_1Lepton.recon.AOD.e347_s462_r635_tid047146/ –AOD.047146._02577.pool.root –AOD.047146._02598.pool.root –In run area: athena.py TagAndProbe_jobOptions.py

9 EW analisi in Lecce9 MuonInsituPerformance-preliminary exercise(1) Running smoothly but: from tagAndProbeSummary.out Obviously this is not the behaviour we would expect ============================== = Zmumu Tag&Probe selection = =========================================== ======= Tag selection =========================== Initial tags.................................................. 793 ----------------------------------------------------------------------------- Tags after type cut....................................... 697 ----------------------------------------------------------------------------- Tags after pt and eta cut............................... 690 ----------------------------------------------------------------------------- Tags after d0 cut......................................... 690 ----------------------------------------------------------------------------- Tags after trigger cut.................................... 0 ----------------------------------------------------------------------------- Tags after isolation cut.................................. 0 -----------------------------------------------------------------------------

10 EW analisi in Lecce10 MuonInsituPerformance-preliminary exercise(2) One step back…. Release 14.5.0 ( MuonInsituPerformance -Twiki page) cmt co (several packages) and run. ============================== = Zmumu Tag&Probe selection = =========================================== ======= Tag selection =========================== Initial tags.................................................. 793 ----------------------------------------------------------------------------- Tags after type cut....................................... 697 ----------------------------------------------------------------------------- Tags after pt and eta cut............................... 690 ----------------------------------------------------------------------------- Tags after d0 cut......................................... 690 ----------------------------------------------------------------------------- Tags after trigger cut.................................... 503 ----------------------------------------------------------------------------- Tags after isolation cut.................................. 490 -----------------------------------------------------------------------------............ and more tagAndProbeSummary.out

11 EW analisi in Lecce11 ZtoTwoMuons-preliminary exercise The aim is to run on full statistic sample the ZtoTwoMuons chain. Starting point the twiki pages. Athena release 15.2.0,32,AtlasOffline Packages –cmt co PhysicsAnalysis/StandardModelPhys/WZBenchmarks/ZToTwoMuons –cmt co –r InsituEvent-00-00-05 PhysicsAnalysis/AnalysisCommon/InsituPerformance/ InsituEvent –cmt co –r InsituTools-00-00-06 PhysicsAnalysis/AnalysisCommon/InsituPerformance/InsituTools Compilation –Comment out: // APDatabaseIDDescriptor idDesData = idData.getIDDescriptor(); // m_muonEfficiencyAccessTool->getEfficiency(dataMatrixName,... Run joboption: Z2mAnalysis_topOptions.py and look to the produced test.dat and test.root. Run on the grid by ganga from lxplus by the ganga script ganga-valid15.py from R. Di Nardo.

12 EW analisi in Lecce12 ZtoTwoMuons full statistics on grid from lxplus I run on the dataset name: mc08.106051.PythiaZmumu_1Lepton.recon.AOD.e347_s462_r635/ j.splitter.numsubjobs = 10 && All events. Sono stati lanciati 121 subjobs di cui 5 falliti la prima volta e 3 la seconda. Output dataset: user09.GabrieleChiodini.ganga.test1 with test.dat and test.root for each subjobs There is a merged test.dat?

13 EW analisi in Lecce13 Short term goals Very short term goal: The aim is to run on full statistic sample the ZtoTwoMuons chain from italian tier2: –Priority is on Roma1 site (In parallel try to do the same on Naples site) Short term goal: Try to measure cross-section in ZtoTwoMuons framework Feed-back to developers Help to develop or improve some parts