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Title. ECAL+HCAL Tower Et and missing Et Pal Hidas FNAL Batavia / RMKI Budapest. High Et tail. 0-60 GeV amplitude drops by 4 orders of magnitude 60-500 GeV 200 GeV is needed for drop by 1 magnitude good events ~100-300 HCAL hits energy sum ~ 0.1-1.0 GeV bad events

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  1. Title • ECAL+HCAL Tower • Et and missing Et • Pal Hidas • FNAL Batavia / RMKI Budapest

  2. High Et tail • 0-60 GeV • amplitude drops by 4 orders of magnitude • 60-500 GeV • 200 GeV is needed for drop by 1 magnitude • good events • ~100-300 HCAL hits • energy sum ~ 0.1-1.0 GeV • bad events • 1 extra giant HCAL hit, E ~1-5 GeV • come from GEANT ( bug / feature ?) • Shuichi sees them in the fz files so they come from cmsim

  3. Result & Way Out • missing Et trigger rate is fatally overestimated above 40 GeV • I think we saw this last year on hlt samples above 100 GeV • we did not see it on minimum bias because of low statistics of high Et • we need a filter • drop events of HCAL hits ( not digis) above ~0.1-1.0 GeV • one has to create a hit-event black list and fed it by the digi job • we should be able to flag those events in DB after digi production • I will try to setup a filter on digis on 1 to 3*3 tower energies • needs further studies on hlt

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