users:danyyl:dijet:20180509
This is an old revision of the document!
Fitting the data
Files were successfully created with one histogram (83.5e8 events for Run2016F).

Some of the files are empty. Need to understand why.
Tried to fit first time: FAILED

Tried refit for 300-600 GeV dijet mass range. Have CALL LIMIT from Migrad

Try to increase numbers of calls. Fit FAILS or CALL LIMIT
Fit:0: RuntimeWarning: Abnormal termination of minimization.
FCN=67.6805 FROM MIGRAD STATUS=FAILED 76 CALLS 77 TOTAL
EDM=842.025 STRATEGY= 1 ERR MATRIX NOT POS-DEF
EXT PARAMETER APPROXIMATE STEP FIRST
NO. NAME VALUE ERROR SIZE DERIVATIVE
1 p0_bkg_0 5.36334e-02 4.32417e-07 -0.00000e+00 -7.29834e+10
2 p1_bkg_0 2.48194e+01 1.86021e-02 0.00000e+00 6.43726e+04
3 p2_bkg_0 6.86153e+00 1.38807e-04 -0.00000e+00 2.37702e+08
4 p3_bkg_0 5.32199e-01 2.89695e-06 0.00000e+00 -1.11780e+10
ERR DEF= 0.5
-
Ran the jobs for another Runs of 2016.
What is next?
Add RooFit to my code
Fit background with the help of RooFit
Wait for whole data set
users/danyyl/dijet/20180509.1526642011.txt.gz · Last modified: 2018/05/18 13:13 by dbrzhech