1. LABGROUPMEETING 20100216 Youngmin Siks Yook 1

2.  SignalMC -> sideband region check  UDSC deltaE peak issue  MM2 vs Lepton MMT 2-D fit 2

3. Signal MC 3 Upper picture’s cut -> 2.0 0.2 Lower picture’s cut -> 2.0<Mbc<2.5, abs(dE)<0.2 1. Even though there might have been some misconception, still a mystery why no events are recorded in the histogram. 2. Seems like Dr.Cho used another *.cc file for this analysis

4. UDSC deltaE peak issue 4 Upper: Charm’s Mbc-de Lower: UDS’s Mbc-de Red Line: Has been given cross-like cuts

5. Some comments 5 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.

6. Mbc-Lp 2-dim fitting 6 Left: Fitted with 2-d Gaussian Pretty intriguing to decide the function for the lp side Right: Fitted with Gaussian About 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

7. ToDos 7  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