Home » Groups » STAR Protected

RooUnfold SVD Weighted Simulation Statistics Problem: Resolution

Updated on Fri, 2013-08-02 17:09. Originally created by pagebs on 2013-08-02 16:08.
Here I document the resolution to the RooUnfold statistics problem ...

Figure 1: This figure shows the cross section spectrum with the original errors (left) and the new errors (right).

Figure 2: This figure shows the (Data-Theory)/Theory ratio using the original errors (left) and the new errors (right). The theory compared to uses the CTEQ6M PDFs corrected for underlying event and hadronization.

 

Table 1: This table shows the errors on the cross section from the old version of RooUnfold and the new version of RooUnfold. It also shows the errors on the (Data-Theory)/Theory ratio calculated as in Bevington for the old and new versions of RooUnfold. I have also included the error on the theory calc.

Bin Old Error New Error Theory Error Old Ratio Error New Ratio Error
1 0.00108904 0.018908 0.00216414 0.00419 0.0416753
2 0.000352358 0.00459823 0.000708885 0.00311391 0.0200577
3 0.000136603 0.00186387 0.000282774 0.00394697 0.024384
4 4.64305e-5 0.000597612 0.000159524 0.00674113 0.0253985
5 1.60429e-5 0.000164178 8.71664e-5 0.0118795 0.0254171
6 6.42709e-6 3.70097e-5 3.22778e-5 0.0159136 0.0230397
7 2.63655e-6 1.09376e-5 1.31996e-5 0.0226804 0.0278302
8 1.05672e-6 2.98707e-6 3.69321e-6 0.0225488 0.0271762
9 4.43569e-7 8.66223e-7 1.04174e-6 0.0329368 0.0378844
10 1.11355e-7 1.83996e-7 2.27441e-7 0.0476286 0.0529374
11 1.34739e-8 2.11688e-8 2.87299e-8 0.0720879 0.077437

Groups: