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• ESProducers: components that read the condition database or other inputsources and produce the condition format objects used by applications.• Data formats: objects describing event content, for example the trigger decisionsor input values for a certain bunch crossing.• Unpackers: when read out from the DAQ system, the event data simply consistsof a stream of 64 bit words for each subsystem. Unpackers implement the logicto decode the subsystem specific format and produce object representations forthe event.• Analyzers: actual emulator logic is then implemented in the form of CMSSWanalyzers that use the input objects generated by previous stages to add objectsrepresenting the emulator decision to the event.Figure 4.6 shows this setup for the L1 GT emulator. The L1GlobalTrigger classextracts input objects from the event and performs board-by-board emulation of thehardware to produce the output objects, listed in the top right corner of the diagram.49
Cond Formats/Data RecordCond Formats/L1TObjectsData Formats/L1GlobalTriggerL1GtTriggerMenuRcdL1GtPrescaleFactorAlgoTrigRcdbased onL1GtTriggerMenuCondition MapAlgorithm MapL1GtPrescaleFactorsL1GtTriggerMaskL1GlobalTriggerReadoutRecordL1GlobalTriggerEvmReadoutRecordL1GtFdlWordL1GtPsbWordL1GtTriggerMaskAlgoTrigRcdL1GtMuonTemplateL1GtPsbSetupL1GlobalTriggerObjectMapRecordL1TcsWordL1GtPsbSetupRcdL1GtCaloTemplateL1GtBoardMapsL1GtfeWordL1GtParametersRcd...L1GtParametersL1GtTechnicalTriggerL1GtBoardMapsRcdL1GtAlgorithmL1GtLogicParser...L1GlobalTrigger executionproducesConfigurationReceive input dataGTL runFDL runProduce recordsL1TriggerConfig/L1GtConfigProducersL1GtTriggerMenuXmlProducerRead Data Recordsfrom Event SetupPSB: receive GCT Object DataPSB: receive Technical TriggersEvaluate ConditionsEvaluate AlgorithmsApply Prescale FactorsApply Trigger MasksL1GtTriggerMenuConfigOnlineProdGTL: receive GMT object dataApply Trigger Veto Masks...usesL1GtParametersTrivialProducerL1GtParametersConfigOnlineProdL1GtBoardMapsTrivialProducerL1GtAlgorithmEvaluationL1GtConditionEvaluationL1GtJetCountsCondition...L1GtMuonConditionusesL1GtEnergySumConditionL1GtMuonCondition evalutationinput objects compare to L1GtMuonTemplateL1GtCaloConditionL1GtHfRingEtSumsConditionL1GtCastorConditionL1GtHfBitCountsConditionFigure 4.6: Package diagram of the Level-1 global trigger emulator in CMSSW [21]50
Page 5 and 6: 3.2.10 CMS Online Software . . . .
Page 7 and 8: factor. The selected events are the
Page 9: Figure 2.1: Expected dijet mass spe
Page 12 and 13: Figure 2.3: Left: Dilepton mass dis
Page 14 and 15: W −Z, γZ, γZ, γW +Z, γFigure
Page 16 and 17: ggHVHg(a)g(b)q¯q¯qHHV ∗q(c)qq(d
Page 18: Events per 4 GeV bin450400350300250
Page 21 and 22: 3 Experimental Setup3.1 Large Hadro
Page 23 and 24: 8.3 T. Such high fields were not ac
Page 26 and 27: luminosity) and limited storage ban
Page 28 and 29: Figure 3.4: Layout of the CMS pixel
Page 30 and 31: Figure 3.6: Transverse section illu
Page 32 and 33: Figure 3.8: HCAL jet energy resolut
Page 34 and 35: staggered by a half-cell each. A dr
Page 36 and 37: acceptance signal is distributed to
Page 38 and 39: Figure 3.11: Generic state machine
Page 40 and 41: Figure 3.12: Components of a CMSSW
Page 42 and 43: 40 MHz Pipeline, Latency < 3.2 µsC
Page 44 and 45: In addition, the GCT calculates a n
Page 46 and 47: Figure 4.4: η boundary between the
Page 48 and 49: Figure 4.5: Organization of the DTT
Page 50 and 51: Condition Type Subtype Parametersmu
Page 52 and 53: oards making up the GT and sends th
Page 56 and 57: 5 Pattern Testing for the Level-1 G
Page 58 and 59: the required processing is mostly c
Page 60 and 61: RAW DIGIL1GctJetCandCollection (for
Page 62 and 63: information about an event that is
Page 64 and 65: muons 2 or two PSB channels (named
Page 66 and 67: 5.3 Software ImplementationThe exec
Page 68 and 69: tsframework::CellOperationTestOpera
Page 70 and 71: system. Each subsystem maintains it
Page 72 and 73: Test Execution PanelThe test execut
Page 74 and 75: Figure 5.10: The pattern test resul
Page 76 and 77: FEDRawDataCollectionL1GlobalTrigger
Page 78 and 79: Figure 6.3: Result of a Function Te
Page 80 and 81: Figure 6.6: Disagreements in e/γ a
Page 82 and 83: Figure 6.9: TestCell output from an
Page 84 and 85: Bibliography[1] Abraham Pais. Inwar
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