labgroupmeeting 20100216 youngmin siks yook 1. signalmc -> sideband region check udsc deltae...
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LABGROUPMEETING20100216
Youngmin Siks Yook
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SignalMC -> sideband region check UDSC deltaE peak issue MM2 vs Lepton MMT 2-D fit
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Signal MC
Upper picture’s cut -> 2.0<Mbc<2.5, abs(dE)>0.2Lower picture’s cut -> 2.0<Mbc<2.5, abs(dE)<0.21. Even though there might have been some miscon-ception, still a mystery why no events are recorded in the histogram.2. Seems like Dr.Cho used another *.cc file for this analysis
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UDSC deltaE peak issue
Upper:Charm’s Mbc-deLower:UDS’s Mbc-de
Red Line:Has been given cross-like cuts
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Some comments
The only E-related cut terms is the chi2(best_chi2) in the chooseBestCandidate() function.
The code inputs frecB('visual' value of the iterator of the Fullrecon_manager).Aux1() into an integer 'chi2'.Then the code chooses the minimum value and the id of the track meeting the condition.
However, since chi2 contains deltaE as the variable - though there are other factors related to D-mass -,it is likely for one to assume that there has been filtering of deltaE partly from this condition.
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Mbc-Lp 2-dim fitting
Left:Fitted with 2-d GaussianPretty intriguing to decide the function for the lp side
Right:Fitted with GaussianAbout MM2
FCN=4382.2 FROM MIGRAD STATUS=CONVERGED 596 CALLS 597 TOTAL EDM=4.36491e-11 STRATEGY= 1 ERROR MATRIX UNCERTAINTY 1.4 per cent EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 p0 4.49532e+01 7.94449e-01 4.53411e-05 -4.68881e-06 2 p1 1.01569e-02 3.30381e-03 -9.95316e-08 4.25362e-04 ->mean 3 p2 3.40918e-01 4.21954e-03 -2.48876e-07 -1.15059e-03 4 p3 2.64198e+00 1.73407e-03 -1.72410e-07 -6.15152e-03 ->mean 5 p4 1.31657e-01 1.86935e-03 -8.92631e-08 -3.08521e-03 FCN=1473.44 FROM MIGRAD STATUS=CONVERGED 199 CALLS 200 TOTAL EDM=1.64984e-12 STRATEGY= 1 ERROR MATRIX UNCERTAINTY 1.2 per cent EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 p0 4.91062e+02 6.66291e+00 -1.17586e-03 6.72592e-09 2 p1 9.30235e-03 2.96586e-03 9.36015e-08 -6.33226e-04 ->mean 3 p2 3.52394e-01 3.77372e-03 -9.36047e-07 -3.68953e-04
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ToDos
Get the ‘SignalMC part of Dr.Cho’s note’ histo
…and relate with the other analysis I’ve done
Figure of Merit About the same part of the note:
- get to know about Estimated yields on MM2 distribution from each MC data