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SLHC Calorimeter Trigger Update

SLHC Calorimeter Trigger Update. FullSim vs FastSim in CMSSW_2_2_5. Kevin Flood, Michail Bachtis University of Wisconsin. Fast vs Full Sim Calo Clusters. Fast (points) Full (hist) unit area normalized. dN / dE T. 2x10 ^34 (40 PU) ttbar events used to compare fast vs full sim

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SLHC Calorimeter Trigger Update

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  1. SLHC Calorimeter Trigger Update FullSim vs FastSim in CMSSW_2_2_5 Kevin Flood, Michail BachtisUniversity of Wisconsin 5 October 2014

  2. Fast vs Full Sim Calo Clusters Fast (points) Full (hist) unit area normalized dN / dET • 2x10^34 (40 PU) ttbar events used to compare fast vs full sim • 30K fast, 80K full sim • Clusterization, calo trigger response essentially identical for Et>20 • Higher multiplicity of very low-energy clusters/tracks known fast sim feature Cluster ET Cluster ET Fast (points) Full (hist) unit area normalized Fast (points) Full (hist) unit area normalized Cluster iPhi Cluster iEta Cluster iEta Cluster iPhi 5 October 2014

  3. Fast vs Full Sim Triggers Fast (points) Full (hist) unit area normalized IsoE ET • No significant differences in IsoE, Tau, QCD Jet triggers Fast (points) Full (hist) unit area normalized Fast (points) Full (hist) unit area normalized Tau Trigger Et Jet Trigger Et Jet Et 5 October 2014

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