Search for Chargino and Neutralino into three leptons

1
Search for Chargino and Neutralinointo three
leptons
Update on Trigger Efficiency for DiMuon
Triggers 1.Trigger paths of interest 2.Measurement
of the muon-based trigger efficiency for L1, L2
and L3 and for L1L2L3
2
DIMUON Triggers (I)
Triggerable muon Cmu4 Cmup4 DONE Cmx4 DONE For
Cmu4, also Cmup6 _at_ L1 Trk ptgt8 GeV _at_ L2

• 1.DIMUON_CMUP4_CMX4
• 2.DIMUON_CMUPCMUP4

New
New
3
DIMUON Triggers (II)

• PHYSICS TABLE 00
• CMUP4 has L1 CMU1.5_PT1.5 and L2 auto
• CMX4 has L1 CMX1.5_PT2 and L2 auto
• PHYSICS TABLE 01
• CMUP4 has L1 CMU1.5_PT1.5 and L2 auto
• CMU4 has
• L1 CMU1.5_PT1.5 and L2 auto
• L1 CMUP6_PT4 and L2 TRK8
• CMX4 has L1 CMX1.5_PT2 and L2 auto

Muon based efficiency for all paths but
L1_CMUP6_PT4 and L2 TRK8.
4
SAMPLE Muon Calib bmcl0d

• Path MUON_CMUP8_v-9
• L1L1_CMUP6_PT4
• CMU_stub_PT 6 Gev
• CMU_XFT_PT 4.09 GeV
• require CMP
• L2L2_CMUP6_PT_8
• XFT layers 4
• XFT PT 8 GeV
• L3L3_MUON_CMUP8
• cmpDx 20.0 cm
• cmuDx 15.0 cm
• minPT 8 GeV

From run n. 139253 (PHYSICS_0_04_v-7) to run
n. 168889 (PHYSICS_1_05_v-8)
5
CMUCMU4 Trigger (I)

• Path DIMUON_CMUCMU4_v-1
• L1L1_TWO_CMU1.5_PT1.5
• cmu stub pT 1.5 GeV
• cmu xft pT 1.5 GeV
• allow east west
• L2L2_AUTO_L1_TWO_CMU1.5_PT1.5
• L3L3_DIMUON_CMUPCMUP4
• cmuDx 15.0 cm
• minPT 4.0 GeV
• selectCMU true
• nMuons 2

6
Identification of cmu4 muonstriggering L1
cmu1.5_PT1.5 (I)

• Given the unbiased muon (muon in the CDF muon
  collection which did NOT fire CMUP8 and its
  identified)
• Match any online cmu stub to the offline cmu
  stub
• ?? lt 0.1 rad
• online cmu stub sgn(?)- offline cmu stub ?
• Match any xft track to the offline track
  associated to the muon
• ?? lt 0.2 rad
• If the offline muon is associated to an xft track
  and to a online cmu stub, it is a L1 triggering
  muon

7
Identification of cmu4 muonstriggering L1
cmu1.5_PT1.5 (II)
??lt0.1 rad
??lt0.2 rad
Distribution of minimal distance between offline
CMU stub and online CMU stub
Distribution of minimal distance between offline
track and xft track
8
Trigger efficiency for L1 CMU1.5_PT1.5
n. Candidate Muons 10214 n. Muons passing L1
9498
Plateau e 95.0 0.6
9
CMUCMU4 Trigger (II)

• Path DIMUON_CMUCMU4_L2_TRK8_L1_CMUP6_PT4
• L1L1_CMUP6_PT4
• cmu stub pT 6 GeV
• Require cmp
• cmu xft pT 4.09 GeV
• L2L2_TRK8_L1_CMUP6_PT4
• Number 1
• Xft pt 8 GeV
• L3L3_DIMUON_CMUCMU4
• cmuDx 15.0 cm
• minPT 4.0 GeV
• selectCMU true
• nMuons 2

10
Identification of cmu4 muonstriggering L1
cmup6_PT4

• Given the unbiased muon (muon in the CDF muon
  collection which did NOT fire CMUP8 and its
  identified)
• Match the online high pt cmu stub to the online
  xtrp _at_ cmup
• ?? lt 0.1 rad
• Match the online (cmu stub-xtrp_at_cmup) to the
  online cmp stub
• ?? lt 0.25 rad (J.L suggests to take ?lt14cm/pT)
• Match the online cmup stub to the offline cmu
  stub
• ?? lt 0.2 rad
• cmup stub sgn(?)- offline cmu stub ?
• Match the xft track with ptgt8 GeV to the offline
  track associated to the muon
• ?? lt 0.1 rad
• If the offline muon is associated to an xft track
  and to a online cmup stub, it is a L1 triggering
  muon

Having problems in cmp map (talking to Eric.J)
Temporary solution which gives the upper limit of
Eff. Match online cmu stub to offline cmu stub
11
Trigger efficiency for L1 CMUP6_PT4
n.Candidate Muons 10033 n.Muons passing L1
6815
Plateau e 93.1 0.4
?
12
Trigger efficiency for L2 TRK8 (I)
n.Muons passing L1 6815

• Given a muon passing L1
• Match to xft track with pt gt 8GeV
• ?? lt 0.1 rad

n.Muons passing L2 2534
L1L2
L2
Plateau e 89.3 0.8 for pT gt 9 GeV
Plateau e 96.5 0.5 for pT gt 9 GeV
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Trigger efficiency for L3 CMU4(L1_CMUP6_PT4_TRK8)

n.Muons passing L1L2 2534

• Given a candidate muon passing L1 and L2
• Match to cmu4 L3 object
• ?? lt 0.1 rad
• ?R lt 0.1 rad

n.Muons passing L1L2L3 2482
L3
L1L2L3
Plateau e 87.5 0.9 for pT gt 9 GeV
Plateau e 98.3 0.3 for pT gt 9 GeV
14
Trigger efficiency for L3 for CMU4 (L1_CMU1.5 and
auto L2)
n. Candidate Muons 10214 n. Muons passing L1L3
6671
Plateau e 92.0 0.6
Plateau e 98.5 0.2
15
Conclusions (I)
CMU4

• Investigate reason why L3 efficiency is not 100
• Compute the DIMUON efficiency given the single
  muon efficiency
• Cross check results by using muons in the mass
  peak
• Cross check results by using the MET sample
• Write CDF note