> Did you coordinate with Urs about the time issue?
I think that Urs can send me any hint about the time issue when providing
me the example of the code needed to loop over rootfiles producing one
rootfile that is the sum of all the other ones...
> the last interesting plot could be the difference between Mes(D*)-Mes(D0)
> for the duplicated events.
>
Here's what we want:
FCN=1067.32 FROM MIGRAD STATUS=CONVERGED 716 CALLS 717
TOTAL
EDM=8.1666e-07 STRATEGY= 1 ERROR MATRIX
UNCERTAINTY 5.6 per cent
EXT PARAMETER STEP FIRST
NO. NAME VALUE ERROR SIZE DERIVATIVE
1 Norm 2.84495e+02 1.19986e+01 -7.21239e-03 -1.44217e-04
2 Mean_value 5.27967e+00 2.07976e-04 1.40617e-07 -2.73182e+00
3 Sigma 4.71564e-03 1.80346e-04 -4.37451e-07 -4.55158e+00
4 Alpha 1.43107e+03 2.47933e+01 1.16276e-01 6.64151e-05
5 N -4.37771e+01 8.07265e-01 -2.70251e-03 3.82928e-03
http://www.slac.stanford.edu/~asarti/recoil/killing/prova.eps
(D0 killed candidates)
FCN=667.805 FROM MIGRAD STATUS=CONVERGED 289 CALLS 290
TOTAL
EDM=2.58275e-08 STRATEGY= 1 ERROR MATRIX
UNCERTAINTY 2.9 per cent
EXT PARAMETER STEP FIRST
NO. NAME VALUE ERROR SIZE DERIVATIVE
1 Mean_value 5.27997e+00 1.02828e-04 -4.88033e-08 -7.93025e-01
2 Sigma 3.90829e-03 8.87713e-05 -1.79391e-07 2.75563e+00
3 Alpha 1.29745e+00 4.65031e-02 1.58979e-06 3.86161e-01
4 N 7.22890e-02 1.44395e-02 -8.88436e-06 3.17333e-02
5 Constant 3.44454e+02 8.31496e+00 1.78035e-02 9.51657e-06
http://www.slac.stanford.edu/~asarti/recoil/killing/prova.eps
(D* saved ones)
The difference is quite small:
5.27997 (D*) - 5.27967 (D0) = 0.3 MeV
Let me know any comment or question...
Alessio
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