September

• Schedule
• Works
  • Simple example
  • Measurement of efficiency
  • Make the histograms of deviation and missing energy

Schedule

Daily works

Wed. 26 ~ Fri. 28.

• Filip proposed to draw the deviation and missing energy plot.
• Data Set : DrellYan_mumu_40
• Software Release : CMSSW_1_5_2
• CRAB version : CRAB_1_5_4
• Cuts
  • |η| < 2.4
  • Pt > 10 GeV
• Results :

  Missing Energy
  Deviation of muon
  Deviation of muon have to be less than 0.1%

Mon. 24. ~ Tues. 25

• Changed the CRAB version : If the case of using CMSSW_1_5_2, have to use CRAB version over CRAB_1_5_3.
• Changed the SLC version : If the case of using CMSSW_1_5_2. have to use SLC4.
• Software Release : CMSSW_1_5_2
• CRAB version : CRAB_1_5_3
• Cuts
  • |η| < 2.4
  • Pt > 10 GeV
• Event number :
  • Electron : 5500
  • Muon : 15000
• Result

  Efficiency of Electron
  Purity of Electron
  Efficiency of Muon
  Purity of Muon

Fri. 21.

Thur. 20.

• Tried to perform the event by using CRAB. ( only muon process )
  • Event number : 15000
  • Analysis tool : SusyAnalyzer
  • CRAB version : CRAB_1_5_2
  • CMSSW version : CMSSW_1_5_2
  • Changed the matching code.
  • Did'nt change the cut.
• The result and conclusion :
  • Error of CRAB : "no found castor" -> After asking to CRAB hypernews about this, I know that the problem can be solved by fixing my path.

Mon. 17. ~ Wed. 19.

crab twiki page

Thur. 13. ~ Fri. 14.

• Changed the source of electron : RelVal152Z-EE ( the source of muon did not change : DrellYan_mumu40 )
• Changed my fault of coding in .cfg file and bin number from 100 to 50.
• Chose the five source file.
  • Event number :
    • Electron : 2500
    • Muon : 5000
• Result and conclusion :

  Efficiency of Electron
  Purity of Electrfon
  Efficiency of Muon
  Purity of Muon

• • Electron :
    • Efficiency of electron vs eta was good except large error bar. But efficiency of electron vs Pt was not good. There was some efficiency over 1 and large error bar.
    • Purity plot was very large error bar.
    • Why the event number was only 550 ?
  • Muon :
    • Efficiency and purity plot was as same as ever.
    • Why the event number was only 1000?
• Next works :
  • Try to check the source file whether available or not.
  • Try to change the matching code in .cc file for reducing the size of error bar.
• If the source is not available in cern machine, Filip proposed to using CRAB for more event.

Wed. 12.

• Met with Filip and discussed about yesterday results.
  • About large error bar -> Perform the more event.
  • Poor plot of electron -> Change the source.
  • Efficiency > 1 -> Reduce bin number.
  • Puriity = 1 -> He didn't reply.
  • About event number -> This was the wrong coding in .cfg file. Try make it good.

Mon. 10. ~ Tues. 11.

• Had a second meeting with Filip and discussed my result.
• He proposed new one.
  • Draw efficiency and purity plots.
  • Change the source from sample in susyanalyzer to Drellyan and choose 5 root file in the source.
• Coded for efficiency and purity.
• Event number : 5000
• Source : DrellYan_mumu40
• Performed the cmsRun by using same analysis tool and same cut.
• Result and Conclusion :

  Efficiency of Muon
  Purity of Muon

• • There was the very large error bar.
  • Electron plot did not maked.
  • There was the efficiency over 1.
  • All of the purity was 1.
  • Even chosen event number was 5000, performed event number was only 1000.
• Try to contact Filip and discuss about these.

Tues. 4. ~ Thur. 6.

• Met with Filip and he proposed to draw pt and eta histograms of muon and electron.
• This is very simple example and the goal is training for using Susyanalyzer.
• Analysis tool : SusyAnalyzer
• CMSSW version : CMSSW_1_5_2
• Cut :
  • 0 GeV/c < Pt < 100 GeV/c
  • |η| < 2.4
• Source : I used sample source in Susyanalyzer.
• Coded for matching system.
• Result :

  Reconstructed muon
  Matched muon

-- JeewonSeo - 26 Oct 2007