TWiki> Main Web>TWikiUsers>TheodotaLagouri>LVL1Di-muonStudyWithoutFlags (2005-12-02, TheodotaLagouri) EditAttachPDF

LVL1 di-muon trigger analysis with release 10.0.1 without flags

Useful link

Single muon events layout "Q":

G4 simulated, digitized and read RDO with 10.0.1:

  • /castor/cern.ch/user/l/lagouri/overlapb_ec
  • Overlap region 0.8 < eta < 1.2
  • 10K single muons, mu(-13), mu(+13), pt= 6 GeV
  • Overlap region -1.2 < eta < -0.8
  • 10K single muons, mu(-13), mu(+13), pt= 6 GeV
  • Overlap region 0.8 < eta < 1.2
  • 1K single muons, mu(-13), mu(+13), pt= 20 GeV
  • Overlap region -1.2 < eta < -0.8
  • 1K single muons, mu(-13), mu(+13), pt= 6 GeV
  • Overlap region 1.05 < eta < 2.4
  • 1K single muons, mu(-13), mu(+13), pt= 6, 20 GeV

10 K single muons

  • Overlap barrel/endcap 0.8 < eta < 1.2

pt (GeV) 6
di-muon rate, mu-(%) 2.8±0.2
trigger efficiency, mu-(%) 60.7±1.0
di-muon rate, mu+(%) 6.6±0.3
trigger efficiency, mu+(%) 79.8±1.2

  • Overlap barrel/endcap region -1.2 < eta < -0.8
pt (GeV) 6
di-muon rate, mu-(%) 7.6±0.3
trigger efficiency, mu-(%) 83.6±1.2
di-muon rate, mu+(%) 2.65±0.2
trigger efficiency, mu+(%) 58.8±1.0

1K single muons

  • Overlap barrel/endcap 0.8 < eta < 1.2

pt (GeV) 20
di-muon rate, mu-(%) 3.3±0.7
trigger efficiency, mu-(%) 78.5±3.7
di-muon rate, mu+(%) 5.2±0.8
trigger efficiency, mu+(%) 89.7±4.1

  • Overlap barrel/endcap region -1.2 < eta < -0.8
pt (GeV) 20
di-muon rate, mu-(%) 3.7±0.7
trigger efficiency, mu-(%) 88.9±4.1
di-muon rate, mu+(%) 2.2±0.5
trigger efficiency, mu+(%) 77.3±3.7

1 K single muons

  • Endcap region 1.05 < eta < 2.4

pt (GeV) 6 20
di-muon rate total, mu+(%) 2.94±0.7 5.2±0.75
trigger efficiency total, mu+(%) 61.2±3.1 98.2±4.4
di-muon rate total, mu-(%) 3.5±0.8 5.3±0.8
trigger efficiency total, mu-(%) 51.5±2.8 97±4.4

Remarks

It seems that the mu- in the negative eta region (-1.2<eta<-0.8) or mu+ in the positive eta region (0.8<eta<1.2) are crossing the overlap area between barrel and endcap and give higher di-muon rates like 6-7% and it's woth mentioning that the 6 GeV muons seem to be a bit more sensitive than 20 GeV to this overlap area.

-- TheodotaLagouri - 02 Dec 2005

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Topic revision: r1 - 2005-12-02 - TheodotaLagouri
 
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