Met slides
Download
1 / 26

MET Slides - PowerPoint PPT Presentation


  • 110 Views
  • Uploaded on

MET Slides. Xiaowen Lei (U. Arizona). MET Triggers. MET triggers can be important supplementary triggers for ATLAS physics L1 rate can be reduced by combining multiple L1 objects Jet + X - 2j40_xe30 Tau + X - tau16i_loose_EFxe30 e + X - g25_loose_xe30

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' MET Slides' - malory


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Met slides

MET Slides

Xiaowen Lei

(U. Arizona)


Met triggers
MET Triggers

  • MET triggers can be important supplementary triggers for ATLAS physics

    • L1 rate can be reduced by combining multiple L1 objects

      • Jet + X - 2j40_xe30

      • Tau + X - tau16i_loose_EFxe30

      • e + X - g25_loose_xe30

  • Of course before one can use these triggers the basic xe triggers must be commissioned and understood


Met trigger
MET Trigger

  • L1 xe

    • L1 Calo trigger produces MET, Scalar ET and Scaler ET (sum over jets)

    • For each there are 8, 4 and 4 thresholds

  • L2 xe

    • L1 Calo MET but corrected using L2 Muon

  • EF xe

    • All calorimeter cells, all cells with noise suppression or FEB based

    • Can be corrected for EF muons




  • 3 menus to consider

  • Cosmic menu right before initial beam

  • Initial beam menu

  • Physics menu (more speculative)


Cosmic menu 2009v2
Cosmic menu 2009v2

  • L1

  • L1_XE[20, 30, 50, 60]_EMPTY XEx L1_TE[150, 650]_EMPTY TEx L1_JE[120, 340]_EMPTY JEx


Cosmic menu 2009v21
Cosmic menu 2009v2

  • Hlt request

  • xe30 xe30_FEB xe30_noiseSupp xe30_allL1 xe30_allL1_FEB xe30_allL1_noiseSupp te150 xe30_unbiased xe30_unbiased_FEB xe30_unbiased_noiseSupp xe20_EFonly_L1MBTS1 xe20_EFonly_L1MBTS1_FEB xe20_EFonly_L1MBTS1_noiseSupp


Initialbeam v1
InitialBeam_v1

  • L1

  • Identical to comic2009_v2 except the l1 terms have ANDed with "BGRP0 & (BPTX0 | BPTX1)"

  • L1_XE20, 30, 50, 60 XEx L1_TE150, 650 TEx L1_JE120, 340 JEx


Initialbeam v11
InitialBeam_v1

  • HLT

  • Same as cosmic2009 plus the standard physics chains


Rates
rates

  • L1 XE Rates

  • Trigger NamePrescaleRateCumul Rate L1_XE50 2 0.67 (+/- 0.27 ) 0.67 L1_XE40 20 0.48 (+/- 0.07 ) 1.12 L1_XE30 200 0.65 (+/- 0.03 ) 1.76 L1_XE25 1500 0.33 (+/- 0.01 ) 2.09 L1_XE20 7000 0.24 (+/- 0.00 ) 2.33 L1_XE15 30000 0.18 (+/- 0.00 ) 2.51 L1_XE60 1 0.22 (+/- 0.22 ) 2.62 L1_XE35 100 0.35 (+/- 0.03 ) 2.96 Total Rate2.96


Rates1
rates

  • Trigger NamePrescaleRateCumul Rate L1_XE50 2 0.67 (+/- 0.27 ) 0.67 L1_XE40 20 0.48 (+/- 0.07 ) 1.12 L1_XE30 200 0.65 (+/- 0.03 ) 1.76 L1_XE25 1500 0.33 (+/- 0.01 ) 2.09 L1_XE20 7000 0.24 (+/- 0.00 ) 2.33 L1_XE15 30000 0.18 (+/- 0.00 ) 2.51 L1_XE60 1 0.22 (+/- 0.22 ) 2.62 L1_XE35 100 0.35 (+/- 0.03 ) 2.96 Total Rate2.96


Trigger efficiencies
Trigger efficiencies

  • We calculate trigger efficiencies as part of the HLT MET monitoring package and MET performance package

  • Wrt offline MET (calorimeter only for now)

  • Useful data samples will be 2 jets, z to tau tau, w to enu and ttbar



  • 8 met thresholds must seed

    • Inclusive met and met w muon correction triggers

    • MET plus jet and MET plus lepton triggers

    • Are jet triggers inclus

    • ive or exclusive?

    • Examples of turnon curves

    • Trigger menu from diego slide

    • L31 trigger menu twiki


ad