Search for Chargino-Neutralino Production

Di-electron + Track Channel 1fb-1

Blessed Plots/Tables Page 2 of 2



Supporting statements/captions have been made with every plot

You may click each plot to open it in full size

Signal P1 has the following charateristics: 
M0=60, M1/2=190, tan(beta)=3, A0=0, mu > 0
and is used in all plots/tables as the standard SUSY point. 

The masses at this point are 
Mchargino=119 GeV
Mneutralino=122 GeV



Leading Electron ET

Figure shows the leading electron's transverse energy distribution for dielectron events with missing transverse energy greater than 15 GeV and Z-mass veto. (missing ET > 15 GeV , 20 <Mee< 76 OR Mee> 106)


Missing ET

Figure shows the missing transverse energy distribution for dielectron events with missing transverse energy greater than 15 GeV and Z-mass veto. (missing ET > 15 GeV , 20 <Mee< 76 OR Mee> 106)


Final Plots after all Selections

Missing ET

Figure shows the missing transverse energy distribution for dielectron + track events after all selections (except this one) have been made. We keep events with missing ET > 20 GeV.


Leading Invariant Mass

Figure shows the leading opp-sign invariant mass distribution for dielectron + track events after all selections (except this one) have been made. We keep events with 20 <Mee< 76, OR Mee > 106.


Min. MT

Figure shows the minimum transverse mass (of electron/track with missing ET) distribution for dielectron + track events after all selections (except this one) have been made. We keep events with min MT > 10 GeV.



TABLE of Expected Background, Signal and Observed Events

Source Events(±stat±syst)
Drell Yan 0.544 ± 0.22 ± 0.134 WW 0.119 ± 0.006 ± 0.024 ZZ 0.012 ± 0.003 ± 0.002 WZ 0.081 ± 0.001 ± 0.018 top-pair 0.216 ± 0.049 ± 0.1 Total SM 0.97 ± 0.22 ± 0.17 ± 0.06(lum) = 0.97 ± 0.28 SUSY P1 2.1 ± 0.05 ± 0.13 DATA OBS 3 = 3


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Sourabh Dube
Last modified: Thu Oct 5 11:07:54 CDT 2006